CN205741943U - A kind of continuous rigid frame bridge closure segment pushing tow top board top support structure - Google Patents

Abstract

The utility model discloses a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, be made up of the pre-buried base of top board and the pushing reaction frame being fixedly mounted on the pre-buried base of top board；The pre-buried base of top board is embedded on the top board of continuous rigid frame bridge cantilever beam section end；Pushing reaction frame is longitudinal pushing reaction frame or oblique pushing reaction frame；The pre-buried base of top board includes two longitudinal grooved angle steel and former and later two lateral connection angle steel being attached two longitudinal grooved angle steel, longitudinal grooved angle steel and lateral connection angle steel are right angle angle steel, and the level right angle limit of longitudinal grooved angle steel and lateral connection angle steel is all laid on top board and its vertical straight arm of angle is all embedded in top board；Longitudinal pushing reaction frame and oblique pushing reaction frame are all fixed on the pre-buried base of top board by the multiple first vertical connecting bolt.This utility model simple in construction, reasonable in design and easy construction, using effect are good, can meet closure segment both sides cantilever beam section support top demand longitudinally and during oblique pushing tow.

Description

A kind of continuous rigid frame bridge closure segment pushing tow top board top support structure

Technical field

This utility model belongs to technical field of bridge construction, especially relates to a kind of continuous rigid frame bridge closure segment pushing tow top Plate top support structure.

Background technology

Continuous rigid frame bridge is the continuous bridge of pier consolidation, point main span be the multispan rigid frame bridge of continuous beam and many Span Continuous- Rigid frame bridge, all uses prestressed reinforced concrete construction, has a main pier of two or more, uses pier consolidation system, have T-shaped rigid frame bridge and The advantage of continuous bridge.Closure segment is the key link of continuous rigid frame bridge construction, for reducing the operation phase due to concrete shrinkage Xu Become and the variations in temperature adverse effect to bridge structure, during the construction of continuous rigid frame bridge closure segment, typically use very heavy at closure segment Top pushing tow, applies horizontal jacking force (according to being constructed respectively to closure segment both sides (the specifically cantilever beam section of closure segment both sides) Continuous rigid frame bridge across footpath with close up front temperature, applied horizontal jacking force typically at 80t～150t, indivedual documents record to be adopted Horizontal jacking force be 800t), adjust bridge internal force status, to eliminate construction time temperature and long-term concrete shrinkage and creep shadow Ring.

Nowadays, the tectonic sieving of continuous rigid frame bridge closure segment pushing tow and temporary locking is various informative, and general many employings are just Property support structure (also known as stiff skeleton) combines the closure segment part interim stretch-draw of steel bundle and enters line-locked mode, at closure segment coagulation Soil forms be rigidly connected (also referred to as false closure) before pouring.The most employings of stiff skeleton are built-in, i.e. stiff skeleton and pushing tow dress Setting within concreting face, completely including stiff skeleton after closure segment concreting, stiff skeleton is as permanent Structure retains.After this structure stretch-draw, built-in stiff skeleton share part axial compressive force, be conducive to reducing closure segment concrete Local compressive stress, but the later stage is due to the impact of concrete shrinkage and creep, and between stiff skeleton and concrete, compressive stress will progressively weigh New distribution, stiff skeleton will absorb the major part compressive stress from prestressed strand, thus be easily caused closure segment coagulation soil pressure and answer Power deposit reduces, and increases cracking risk.

In view of the foregoing, use external stiff skeleton (outer rigid support structure) in recent years more.External strength Property skeleton be positioned at beyond concreting face, belong to temporary component, closure segment concreting is removed after completing, and is not involved in long-term Stress；It is characterized in that internal force is fully transferred to be undertaken by closure segment concrete in early days, compressive stress deposit abundance.

The T structure (also referred to as T structure cantilever beam) of continuous rigid frame bridge closure segment both sides uses the construction of Hanging Basket cantilever pouring due to more, because of And measure, monitor, formwork erection, stretch-draw etc. the most all can produce error, normally behave as following three after the various accumulations of error The error of the situation of kind: the first, height variation, i.e. closure segment two ends exist the discrepancy in elevation；The second, lateral deviation, i.e. closure segment two ends exist There is deviation on direction across bridge, between the bridge longitudinal axis at closure segment two ends, there is deviation；3rd, torsional deflection, i.e. closure segment The box beam at two ends is asymmetric, exists with the beam center of gravity (the i.e. longitudinal center's axis) torsion as axle.

During practice of construction, the continuous rigid frame bridge being positioned partially or entirely on horizontal curve, due to two coxostermum steel bundles configuration and The size difference of web length, is easily generated above-mentioned the second and the third deviation；For the bridge closed up several times, the more later stage closes The closure segment held together, produce above-mentioned the first, the probability of the second and the third deviation the biggest.

Theoretically, closure segment two ends cantilever pouring construction quality, progress and construction monitoring are carried out, and typically do not have by mistake The situation that difference requires beyond construction technique normalizing, but practice of construction often has dimensional discrepancy close more greatly and exceed code requirement model Situation about enclosing, now, can cause certain adverse effect to structure, such as hogging moment bundle and close up the prestress pipe deviation of bundle relatively Greatly, pipeline concrete stress state can be made during stretch-draw uncontrollable, even result in Local Cracking；Regular reinforcement connects tired After difficulty, and connection on the most same axis, also concrete local can be had a negative impact under External Force Acting, increase cracking wind Danger.Therefore, it is necessary to excessive deviation is corrected on the premise of affecting bridge structure internal force status not too much, also referred to as top Push away correction.

Wherein, for the elevation difference at the first closure segment two ends above-mentioned, can be fitted by the method for uneven preloading Working as adjustment, concrete adjustment process is as follows: in closure segment concrete pouring construction, and general employing other weight such as water tank or sandbag enters Row counterweight, does not consider the half often holding counterweight amount to be closure segment weight concrete when the discrepancy in elevation adjusts, along with concrete construction progressively Unloading, i.e. suitably adjusts elevation difference by the counterweight that cantilever two ends are different.But it is to above-mentioned the second and the third deviation, existing Nowadays there is no a set of corresponding correction method of adjustment.

During it addition, use outer rigid support structure (such as external stiff skeleton) to carry out pushing tow, jacking force should be first before applying Base plate and top board at closure segment are provided above preburied component, and implement pre-buried in last cantilever pouring stage.Wherein, even Continuous steel bridge folding section (also referred to as girder closure segment) refers to the beam section carrying out closing up in the girder of continuous rigid frame bridge, i.e. continuous rigid frame The binding site of bridge girder, including end bay closure segment and main span closure segment.

But more the pre-buried base of existing top board, use to weld U-shaped connection reinforcing bar below steel plates and reinforcing bar is imbedded top board and mix Technical scheme in solidifying soil, there is following defect in the program: the first, top plate thickness is limited, and common u-shaped connects reinforcing bar radical relatively Few, base is low with top board bonding strength；The second, U-shaped connection reinforcing bar reinforcing bar original with box beam top board can not fully be combined；The Three, large-area steel plate causes bridge floor leveling layer and pave-load layer concrete to be connected the weak band in formation local with top board end face；4th, Member Welding workload is big.It addition, the pre-buried base of existing top board, also have and use shaped steel vertically to insert in concrete as pushing tow The technical scheme of counter-force point, there is following defect in the program: the first, pushing tow point position is higher, and pre-buried base local concrete is subject to Power, in addition to the shearing in pushing tow direction, still has bigger moment of flexure to need shaped steel and periphery concrete to undertake, is unfavorable for giving full play to mix Solidifying native measuring body characteristic；The second, need to excise the part shaped steel of prominent top board after incremental launching construction completes.

Nowadays, when continuous rigid frame bridge closure segment is carried out pushing tow, the most all it is not provided with special reaction frame, but passes through Pre-buried shape steel bracket takes into account reaction frame as base, also has and is directly connected to rigid bracing (outer rigid support by pre-buried base Structure) method, pushing tow cuts away the part affecting concrete of bridge deck paving again after completing, but above-mentioned existing arrangement and method for construction is equal There is following defect: the first, locking and pushing tow position is positioned at the middle part of outer rigid support structure, due to jack to be arranged Causing the middle part structure complexity that outer rigid support constructs, the integral rigidity of outer rigid support structure reduces；The second, locking is adopted With Site Welding, after construction trouble, and welding locking, error is difficult to adjust；3rd, pushing tow and concreting need to cut after completing Cutting dismounting, recycling rate of waterused is low；4th, component gravity center is higher, and during pushing tow, additional bending moment is big.It addition, continuous rigid frame bridge is closed up During Duan Jinhang pushing tow, it is common that apply longitudinal jacking force；In indivedual bridge construction process, also can there is lateral deviation and reverse partially Difference (i.e. construction error), now needs to be rectified a deviation by oblique pushing tow.But at present, lack the counter-force that can carry out oblique pushing tow Frame, it is impossible to carry out oblique pushing tow.Wherein, lateral deviation refers to continuous rigid frame bridge in deviation present on direction across bridge, reverses partially Difference refer to continuous rigid frame bridge anisopleual and exist centered by beam longitudinal center axis the torsion problem of line.

Utility model content

Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, it is provided that a kind of continuous Steel bridge folding section pushing tow top board top support structure, its simple in construction, reasonable in design and easy construction, using effect are good, can be full Support top demand when foot closure segment both sides cantilever beam section longitudinal direction and oblique pushing tow.

For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of continuous rigid frame bridge closure segment top Push away and use top board top support structure, it is characterised in that: anti-by the pre-buried base of top board and the pushing tow being fixedly mounted on the pre-buried base of top board Power frame forms；

The pre-buried base of described top board is embedded on the top board of cantilever beam section end of constructed continuous rigid frame bridge, described cantilever Beam section is In Reinforced Concrete Box Girder, and the girder closure segment of constructed continuous rigid frame bridge is for being connected between two described cantilever beam section Closure segment；Described pushing reaction frame is longitudinal pushing reaction frame or oblique pushing reaction frame；

The pre-buried base of described top board includes two symmetrical longitudinal grooved angle steel laid and former and later two are respectively to two institutes Stating the lateral connection angle steel that longitudinal grooved angle steel is attached, two described longitudinal grooved angle steel are all executed along vertical bridge to being laid in In the cantilever beam section of work continuous rigid frame bridge；Two described longitudinal grooved angle steel and two described lateral connection angle steel are angle, right angle Steel, the level right angle limit of two described longitudinal grooved angle steel and two described lateral connection angle steel is all laid in the top of cantilever beam section On plate and its vertical straight arm of angle is all embedded in the top board of cantilever beam section；On the described level right angle limit of described longitudinal grooved angle steel Being provided with the multiple first vertical connecting bolt to from front to back along vertical bridge, the described first vertical connecting bolt bottom is embedded in cantilever In the top board of beam section, the described level right angle limit of described longitudinal grooved angle steel have multiple respectively for multiple described first vertical The bolt mounting holes that connecting bolt is installed；Multiple points are had from front to back on the described vertical straight arm of angle of described longitudinal grooved angle steel The first groove that many top board transverse steels that Gong be not set in cantilever beam section top board pass, many described top board transverse steels It is installed in respectively in multiple described first groove；Two described lateral connection angle steel are all laid along direction across bridge and the two symmetrically cloth If having multiple respectively for set in cantilever beam section top board on the described vertical straight arm of angle of described lateral connection angle steel from left to right The second groove that the many top board longitudinal reinforcements put pass, many described top board longitudinal reinforcements are installed in multiple described second respectively In groove；

Described longitudinal pushing reaction frame and oblique pushing reaction frame are all fixed by the multiple described first vertical connecting bolt On the pre-buried base of top board.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: described longitudinal grooved angle steel Being equal leg angle with lateral connection angle steel, the width of two right-angle sides of described longitudinal grooved angle steel and lateral connection angle steel is equal Thickness for 100mm～200mm and two right-angle sides is 10mm～16mm.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: a described longitudinal grooved Multiple steam vent is had on the described level right angle limit of angle steel.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: two described lateral connection Angle steel be respectively connected on front side of two described longitudinal grooved angle steel between front side angle cleat and be connected to two described vertical Rear side angle cleat between on rear side of fluting angle steel；It is provided with multiple second vertical on described rear side angle cleat from left to right Connecting bolt, the described second vertical connecting bolt bottom is embedded in the top board of cantilever beam section, the institute of described rear side angle cleat State and on level right angle limit, have multiple bolt mounting holes installed for the multiple described second vertical connecting bolt respectively；

Described longitudinal pushing reaction frame and oblique pushing reaction frame are all by the multiple described first vertical connecting bolt and many Individual described second vertical connecting bolt is fixed on the pre-buried base of top board.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: described longitudinal pushing reaction Frame include the first U-shaped steel plate, two the first vertical steel laths being laid in respectively above the first U-shaped steel plate left and right sides, two Lay respectively at the first end junction steel plate of two described first vertical steel lath front end outer side and one be connected to described in two Between first vertical steel lath rear end and for the transverse connection of pushing tow jack support top, described first U-shaped steel plate be U-shaped and It is that level is laid, and the middle part of described first U-shaped steel plate is the jack mounting groove installed for pushing tow jack；Two described One vertical steel lath is all laid along the length direction of the first U-shaped steel plate, and described transverse connection is that level is laid and it is with first The perpendicular laying of vertical steel lath；Described transverse connection is shaped steel and its rear and front end is respectively welded and is fixed on two described On the medial wall of one vertical steel lath, described transverse connection is positioned on rear side of described jack mounting groove and it is weldingly fixed on On one U-shaped steel plate；Two described first end junction steel plates are respectively welded and are fixed on outside two described first vertical steel laths On sidewall and both is weldingly fixed on the forward upper of the first U-shaped steel plate；Described first U-shaped steel plate by steel plate on the left of first, It is positioned on the left of in the of described first on the right side of in the of on the right side of steel plate first steel plate and is connected on the left of in the of described first on the right side of steel plate and described first Steel plate composition on rear side of on rear side of between steel plate first, on the left of in the of described first, on the right side of steel plate and described first, steel plate is symmetrically laid, Steel plate on the left of in the of described first, be provided with on steel plate on rear side of steel plate and described first on the right side of described first multiple respectively for multiple solid Determine bolt installation first fixes bolt mounting holes, and arrange on steel plate on the right side of steel plate and described first on the left of in the of described first is multiple Described first fixes bolt mounting holes all lays from front to back along the length direction of the first U-shaped steel plate, described rear side steel plate Multiple described the first of upper setting is fixed bolt mounting holes and lays from left to right along the width of the first U-shaped steel plate；Two Individual described first end junction steel plate all in vertically to laying and both is laid along the width of the first U-shaped steel plate, Two described first end junction steel plates are symmetrically laid, and each described first end junction steel plate are provided with for end even The second connecting bolt installing hole that connecting bolt is installed；Described first U-shaped Interal fixation is arranged on the pre-buried base of described top board；

Described first vertical connecting bolt and the second vertical connecting bolt are described fixing bolt.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: also include that polylith is by a left side extremely The first of right laying is put more energy into floor, and described in polylith, the first floor of putting more energy into is lay along the first U-shaped steel plate length direction vertical Steel plate, the first floor of putting more energy into all is weldingly fixed on the first U-shaped steel plate described in polylith；Each described first vertical steel lath is just Rear side is provided with one described first floor of putting more energy into, and is provided with the first ribbed stiffener described in polylith on rear side of described transverse connection Plate.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: described transverse connection is First channel-section steel.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: described oblique pushing reaction Frame includes fixation steel plate and to be laid in the U-shaped steel plate reaction frame of fixation steel plate side, described fixation steel plate and described U-shaped steel plate anti- All in level, laying and included angle A therebetween are less than 90 ° to power frame；

Described U-shaped steel plate reaction frame include the second U-shaped steel plate, two be laid in respectively on the second U-shaped steel plate left and right sides Second vertical steel lath of side, two the second ends laying respectively at two described second vertical steel lath front end outer side connect steel Plate and a transverse connection being connected between two described second vertical steel lath rear ends and supply pushing tow jack support top, institute State the second U-shaped steel plate be U-shaped and its be that level is laid, described second U-shaped steel plate and fixation steel plate are laid in same level Upper and the two be fastenedly connected and be integrated, described second U-shaped steel plate be positioned at fixation steel plate side and its in the middle part of for for pushing tow jack The jack mounting groove installed；The length direction of described second U-shaped steel plate is consistent with the pushing tow direction of pushing tow jack；Two institutes State the second vertical steel lath all along the second U-shaped steel plate length direction lay, described transverse connection be level lay and its with The second perpendicular laying of vertical steel lath；Described transverse connection is shaped steel and its rear and front end is respectively welded and is fixed on two institutes Stating on the medial wall of the second vertical steel lath, described transverse connection is positioned on rear side of described jack mounting groove；Two described Two end junction steel plates are respectively welded on the lateral wall being fixed on two described second vertical steel laths and both is welded and fixed Forward upper at the second U-shaped steel plate；Described second U-shaped steel plate by steel plate on the left of second, to be positioned at steel plate on the left of in the of described second right Steel plate and being connected on the left of in the of described second on the right side of steel plate and described second between steel plate on rear side of in the of the second of rear side on the right side of the second of side Steel plate forms, and on the left of in the of described second, on the right side of steel plate and described second, steel plate is symmetrically laid；Two described the second ends connect steel Plate is all in vertically to laying and both is laid along the width of the second U-shaped steel plate, and two described the second ends connect Steel plate is symmetrically laid, and each described the second end junction steel plate is provided with the 3rd connection installed for end connecting bolt Bolt mounting holes；

The left side of described fixation steel plate, right side and rear side are provided with multiple respectively for the second of multiple fixing bolts installation Fixing bolt mounting holes, multiple described second that the left side of described fixation steel plate and right side are arranged fixes the equal edge of bolt mounting holes The length direction of fixation steel plate is laid from front to back, and multiple described second arranged on the upside of described fixation steel plate fixes bolt Installing hole is laid from left to right along the width of fixation steel plate；Described fixation steel plate is fixedly mounted on the pre-buried base of top board On；

Described first vertical connecting bolt and the second vertical connecting bolt are described fixing bolt.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: described U-shaped steel plate reaction frame Also including that polylith second is put more energy into floor along what the width of the second U-shaped steel plate was laid from left to right, described in polylith, second puts more energy into Floor is the vertical steel plate laid along the second U-shaped steel plate length direction, and the second floor of putting more energy into all is weldingly fixed on described in polylith On described lower supporting steel plate；The positive rear side of each described second vertical steel lath is provided with one piece described second floor of putting more energy into, It is provided with described in polylith second on rear side of described transverse connection to put more energy into floor.

Above-mentioned a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure, is characterized in that: described fixation steel plate is along institute The vertical bridge of construction continuous rigid frame bridge is laid and is had rectangular through-hole in the middle part of it to carrying out.

This utility model compared with prior art has the advantage that

1, simple in construction, reasonable in design and easy construction, puts into construction cost relatively low, by the pre-buried base of top board and fixing peace The pushing reaction frame composition being contained on the pre-buried base of top board.

2, the pre-buried understructure of top board used is simple, reasonable in design and input cost is relatively low, processing and fabricating and installation Laying is easy, construction cost is relatively low, is mainly made up of two longitudinal grooved angle steel and two lateral connection Bolted angle connection；Longitudinally open Having U-lag mouth on groove angle steel, be used for blocking former top board transverse steel, fluting makes concrete at notch position continuously simultaneously, Strengthen longitudinally connected and integral anti-shearing ability；Between top board transverse steel, interval arranges the first vertical connecting bolt, and this is first perpendicular To the lower end Transducers Embedded in Concrete of connecting bolt, further enhancing connection, the first vertical connecting bolt is as pushing reaction frame simultaneously Connecting bolt；Spaced apart steam vent on longitudinal grooved angle steel, for concrete aerofluxus, it is ensured that the concrete roof of cantilever beam section Closely knit with the level right angle limit of longitudinal grooved angle steel it is close to；Further, longitudinal grooved angle steel is at the first vertical connecting bolt and second The position of opening processed filament mouth of vertical connecting bolt, after screw on the first vertical connecting bolt and the second vertical connecting bolt, it is simple to Thrust is timely transmitted to the second pre-buried base of top board；The concrete roof end face of cantilever beam section can be at casting concrete and install the During the two pre-buried bases of top board, reserving top board groove, the degree of depth of top board groove is limited not expose the internal reinforcing bar of box beam, can be as far as possible Reduce jack center of gravity, reduce pushing tow additional bending moment.Meanwhile, for welding between lateral connection angle steel with longitudinal grooved angle steel；Horizontal Corresponding with box beam top board longitudinal reinforcement position to the slotting position of angle cleat, rear side angle cleat is arranged and vertically connects spiral shell Bolt, adds strong ties, but does not affect the connection convenience of front end and outer support structure.This top board pre-buried base using effect is good and real With being worth height, have the advantage that first, simple structure, it is easy to process, utilize shaped steel processing composition, reduce welding as far as possible；The Two, externally rigid support structure (i.e. external stiff skeleton) fastening installation can be carried out by vertical connecting bolt, and can ensure that The accuracy of external stiff skeleton position；3rd, convenient and quick construction, does not affect other operation progress, and does not affect bridge Connection between face pave-load layer concrete construction and top board and pave-load layer concrete；4th and the original design steel of top board of cantilever beam section Adhesion of tendon and muscle after injury reason connects, on-the-spot overall stress；5th is connected reliably with the top board of cantilever beam section；6th and the second pre-buried base of top board The pushing reaction frame connected and outer rigid support structure can be repeatedly utilized so that；7th, occupation mode is flexible, regardless of pushing end with solid Fixed end, scene determines as required, and pushing end is identical with fixing end structure, is difficult to get wrong；8th, use easy and simple to handle, it is easy to The site error carrying out cantilever beam section adjusts；9th, rational in infrastructure, pushing tow additional bending moment is little；Tenth, it is not result in bridge floor leveling Layer and pave-load layer concrete are connected the weak band in formation local with top board end face, and pushing tow point position is relatively low.

3, occupation mode is flexible, and the pushing reaction frame used is longitudinal pushing reaction frame or oblique pushing reaction frame, because of And use this utility model that cantilever beam section can carry out longitudinal pushing tow, it is also possible to cantilever beam section is carried out oblique pushing tow and adjusts partially Difference.

4, the longitudinal pushing reaction shelf structure used is simple, reasonable in design and input cost is relatively low, processing and fabricating and peace Simplicity laid by dress, and construction cost is relatively low, completes processing in processing factory in advance, and machining accuracy is prone to ensure.Longitudinal pushing reaction frame Reasonable in design, mainly include the first U-shaped steel plate, two be laid in respectively above the first U-shaped steel plate left and right sides One vertical steel lath, two first end junction steel plates laying respectively at two the first vertical steel lath front end outer side and a company It is connected between two the first vertical steel lath rear ends and supplies the first transverse connection of pushing tow jack support top, actual installation letter Just.This utility model and pre-buried base and rigid support construct is connected between (such as rigid supporting rod, rigid backbone etc.) simplicity, can Lean on；Further, by first end junction steel plate, this utility model is locked with rigid support structure.This longitudinal direction pushing tow Reaction frame uses end pushing tow mode, convenient and quick construction, and on-the-spot need to carry out bolt and connect, and scene need not welding, Construction speed is fast, does not affect other operation progress.Further, the construction standard of longitudinal pushing reaction frame, rigid support structure This utility model structure that pushing end is installed with fixing end is identical, is difficult to get wrong, and practical operation is easy.Further, practice of construction Time, all can carry out pushing tow and locking at the two ends of rigid support structure, it is simple to the error transfer factor in construction.Meanwhile, longitudinal pushing tow Reaction frame is removed convenient and swift, and repeatable utilization after dismounting, and recycling rate of waterused is high.It addition, used longitudinal pushing reaction frame Center of gravity low, the additional bending moment during pushing tow can be effectively reduced.Time actually used, the using effect of longitudinal pushing reaction frame is good And practical value is high, being securedly mounted on the pre-buried base of top board, the jacking force of pushing tow jack is executed by longitudinal pushing reaction frame Being added on the pre-buried base of top board, after pushing tow completes, longitudinal direction pushing reaction frame is locked with rigid support structure.Thus, should Longitudinal pushing reaction frame is applied widely, can be used for the vertical bridge of closure segment to pushing tow process, can be used for the oblique of closure segment Pushing tow process.To sum up, the longitudinal pushing reaction shelf structure used is simple, reasonable in design and easy construction, using effect are good, existing Field need not welding, and dismounting is easy, it is reliable to connect and recycling rate of waterused is high, and the additional bending moment produced during pushing tow is less.

5, the oblique pushing reaction shelf structure used is simple, reasonable in design and input cost is relatively low, processing and fabricating and peace Simplicity laid by dress, and construction cost is relatively low, completes processing in processing factory in advance, and machining accuracy is prone to ensure.This oblique pushing reaction The reasonable in design of frame, mainly include the second U-shaped steel plate, two be laid in respectively above the second U-shaped steel plate left and right sides Second vertical steel lath, two the second end junction steel plates laying respectively at two the second vertical steel lath front end outer side and one It is connected between two the second vertical steel lath rear ends and supplies the second transverse connection of pushing tow jack support top, actual installation letter Just.Between this oblique pushing reaction frame and the pre-buried base of top board and rigid support structure (such as rigid supporting rod, rigid backbone etc.) Connect easy, reliable；Further, by the second end junction steel plate, oblique pushing reaction frame is locked with rigid support structure Fixing.This oblique pushing reaction frame uses end pushing tow mode, convenient and quick construction, and on-the-spot need to carry out bolt and connect, Scene need not welding, and construction speed is fast, does not affect other operation progress.Further, the construction standard of this oblique pushing reaction frame Changing, this utility model structure that the pushing end of rigid support structure is installed with fixing end is identical, is difficult to get wrong, practical operation letter Just.During practice of construction, all can carry out pushing tow and locking at the two ends of rigid support structure, it is simple to the error transfer factor in construction.Real When border uses, oblique pushing reaction frame is removed convenient and swift, and repeatable utilization after dismounting, and recycling rate of waterused is high.Meanwhile, this is oblique Low to pushing reaction frame center of gravity, the additional bending moment during pushing tow can be effectively reduced.Thus, the oblique pushing reaction frame used Using effect is good and practical value high, is securedly mounted on pre-buried base, and the jacking force of pushing tow jack is anti-by oblique pushing tow Power frame puts on the pre-buried base of top board, and pushing tow completes to retread and is locked with rigid support structure to pushing reaction frame. Thus, this oblique pushing reaction shelf structure is simple, reasonable in design and easy construction, using effect are good, and scene need not welding, tears open Dress is easy, it is reliable to connect and recycling rate of waterused is high, and the additional bending moment produced during meeting oblique pushing tow demand and pushing tow is relatively Little.

6, using effect is good and practical value high, and energy is easy, be rapidly completed the pushing tow process of closure segment both sides cantilever beam section, And lateral deviation and the torsional deflection correction demand of cantilever beam section can be met.The pre-buried understructure of top board used is simple, set Meter is rationally and easy construction, using effect are good, high with top board bonding strength and fully can be combined by original reinforcing bar in top board, uses steel Amount is less and the later stage is without removing；The pushing reaction frame dismounting used is easy and can reuse.

In sum, this utility model simple in construction, reasonable in design and easy construction, using effect are good, can meet and close up Support top demand when section both sides cantilever beam section longitudinal direction and oblique pushing tow.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Accompanying drawing explanation

Fig. 1 is the use state reference map of pushing tow side in this utility model embodiment 1.

Fig. 2 is the use state reference map fixing side in this utility model embodiment 1.

Fig. 3 is the planar structure schematic diagram of the pre-buried base of this utility model top board.

Fig. 4 is the direction across bridge structural representation of the pre-buried base of this utility model top board.

Fig. 5 is longitudinal grooved angle steel in the pre-buried base of this utility model top board, lateral connection angle steel and top board transverse steel Connection status schematic diagram.

Fig. 6-1 is the structural representation of this utility model longitudinal direction pushing reaction frame.

Fig. 6-2 is the A-A sectional view of Fig. 6-1.

Fig. 6-3 is the side portion structure schematic diagram of this utility model longitudinal direction pushing reaction frame.

Fig. 6-4 is the first U-shaped steel plate, the first transverse connection and two first in this utility model longitudinal direction pushing reaction frame The installation position schematic diagram of vertical steel lath.

Fig. 6-5 is the first U-shaped steel plate in this utility model longitudinal direction pushing reaction frame, two the first vertical steel laths and two The cut state schematic diagram of first end junction steel plate.

Fig. 7 is the use state reference map of pushing tow side in this utility model embodiment 2.

Fig. 7-1 is the structural representation of this utility model oblique pushing reaction frame.

Fig. 7-2 is the second vertical steel lath, the second end junction steel plate and second in this utility model U-shaped steel plate reaction frame Transverse connection installation position schematic diagram on U-shaped steel plate.

Fig. 7-3 is the second vertical steel lath, the second end junction steel plate and second in this utility model U-shaped steel plate reaction frame The side portion structure schematic diagram of transverse connection.

Description of reference numerals:

The 1 pre-buried base of top board；1-1 longitudinal grooved angle steel；

The vertical connecting bolt of 1-3 first；1-3-1 shank of bolt；1-3-2 top nut；

1-3-3 lower nut；1-4 top board transverse steel；1-5 lateral connection angle steel；

1-6 U-lag；1-7 steam vent；1-8 top board longitudinal reinforcement；

The vertical connecting bolt of 1-9 second；2 cantilever beam section；3 oblique pushing reaction framves；

The U-shaped steel plate of 3-1 second；3-2 the second vertical steel lath；

3-3 the second channel-section steel；3-4 second puts more energy into floor；

3-5 the second end junction steel plate；3-5-1 the 3rd connecting bolt installing hole；

3-6 fixation steel plate；3-6-1 second fixes bolt mounting holes；

4 longitudinal pushing reaction framves；The U-shaped steel plate of 4-1 first；

4-1-1 first fixes bolt mounting holes；

4-2 the first vertical steel lath；4-3 the first channel-section steel；4-4 first puts more energy into floor；

4-5 first end junction steel plate；4-5-1 the second connecting bolt installing hole；

5 rigid support structures；Supporting steel plate under 5-1；5-2 rigid strutting piece；

5-3 end steel plate；6 pushing tow jack.

Detailed description of the invention

Embodiment 1

As shown in Figure 1 and Figure 2, this utility model by the pre-buried base of top board 1 and is fixedly mounted on the pre-buried base of top board 1 Pushing reaction frame forms.

The pre-buried base of described top board 1 is embedded on the top board of cantilever beam section 2 end of constructed continuous rigid frame bridge, described outstanding Arm beam section 2 is In Reinforced Concrete Box Girder, and the girder closure segment of constructed continuous rigid frame bridge is for being connected to two described cantilever beam section 2 Between closure segment.Described pushing reaction frame is longitudinal pushing reaction frame 4.

As shown in Fig. 3, Fig. 4 and Fig. 5, the pre-buried base of described top board 1 includes two symmetrical longitudinal grooved angle steel 1-1 laid The lateral connection angle steel 1-5 respectively two described longitudinal grooved angle steel 1-1 being attached with former and later two, two described longitudinal directions Fluting angle steel 1-1 all along vertical bridge in the cantilever beam section 2 being laid in constructed continuous rigid frame bridge；Two described longitudinal grooved angle steel 1-1 and two described lateral connection angle steel 1-5 is right angle angle steel, two described longitudinal grooved angle steel 1-1 and two described horizontal strokes All it is laid on the top board of cantilever beam section 2 to the level right angle limit of angle cleat 1-5 and its vertical straight arm of angle is all embedded in cantilever In the top board of beam section 2；It is provided with multiple to from front to back along vertical bridge on the described level right angle limit of described longitudinal grooved angle steel 1-1 First vertical connecting bolt 1-3, the described first vertical connecting bolt 1-3 bottom is embedded in the top board of cantilever beam section 2, described vertical Have multiple respectively for the multiple described first vertical connecting bolt 1-3 installation on the described level right angle limit of fluting angle steel 1-1 Bolt mounting holes；Have multiple respectively for cantilever on the described vertical straight arm of angle of described longitudinal grooved angle steel 1-1 from front to back The first groove that many top board transverse steel 1-4 set in beam section 2 top board pass, many described top board transverse steel 1-4 It is installed in respectively in multiple described first groove；Two described lateral connection angle steel 1-5 all lay along direction across bridge and the two is right Claim to lay, the described vertical straight arm of angle of described lateral connection angle steel 1-5 has multiple cantilever beam section 2 of confession respectively from left to right and pushes up The second groove that many top board longitudinal reinforcement 1-8 set in plate pass, many described top board longitudinal reinforcement 1-8 block dress respectively In multiple described second grooves；

Described longitudinal pushing reaction frame 4 is fixed on the pre-buried base of top board 1 by the multiple described first vertical connecting bolt 1-3 On.

When actual laying is installed, the pre-buried base of described top board 1 is laid along the length direction of residing cantilever beam section 2.

In the present embodiment, the length of two described longitudinal grooved angle steel 1-1 is 60cm～150cm.

During practice of construction, need also according to concrete, the length of two described longitudinal grooved angle steel 1-1 is carried out respectively accordingly Adjust.

In the present embodiment, two described longitudinal grooved angle steel 1-1 and the described level of two described lateral connection angle steel 1-5 Right-angle side all cover top surface with cantilever beam section 2 are close to.

During practice of construction, in the top board of described cantilever beam section 2, it is provided with many top board longitudinal direction steel from left to right along direction across bridge Muscle 1-8, many top board transverse steel 1-4 are laid in same level along vertical bridge to from front to back, and many described top boards are longitudinally Reinforcing bar 1-8 is all laid in same level and it is respectively positioned on below many top board transverse steel 1-4, and every described top board is horizontal Reinforcing bar 1-4 is all fastenedly connected with many described top board longitudinal reinforcement 1-8 and is integrated.

Time actually used, described cantilever beam section 2 by construction continuous rigid frame bridge girder in need the beam section that carries out closing up, tool Body is the beam section being positioned at and closing up mouthful both sides.In the present embodiment, the girder of constructed continuous rigid frame bridge is In Reinforced Concrete Box Girder.

In the present embodiment, described longitudinal grooved angle steel 1-1 and lateral connection angle steel 1-5 is equal leg angle, described longitudinal direction The width of two right-angle sides of fluting angle steel 1-1 and lateral connection angle steel 1-5 is 100mm～200mm and two right-angle sides Thickness is 10mm～16mm.

During practice of construction, can according to specific needs the size of longitudinal grooved angle steel 1-1 and lateral connection angle steel 1-5 be entered Row is corresponding to be adjusted.The structure of two described longitudinal grooved angle steel 1-1 is the most identical with size, two described lateral connection angle steel 1-5 Structure the most identical with size.In the present embodiment, two described longitudinal grooved angle steel 1-1 and two described lateral connection angle steel 1- 5 are all laid in same level, and the two ends, left and right of each described lateral connection angle steel 1-5 are all fixed on two with welding manner On described longitudinal grooved angle steel 1-1, two described longitudinal grooved angle steel 1-1's and two described lateral connection angle steel 1-5 is transversal Face size is the most identical and it connects one rectangular angular steelframe of composition.

In the present embodiment, the described level right angle limit of a described longitudinal grooved angle steel 1-1 has multiple steam vent 1- 7。

During practice of construction, it is also possible to equal row of offering on the described level right angle limit of two described longitudinal grooved angle steel 1-1 Pore 1-7.

In the present embodiment, described steam vent 1-7 is circular hole and its aperture is Φ 3mm～Φ 4mm.Adjacent two described aerofluxuss Spacing between the 1-7 of hole is 4cm～6cm.

Actual man-hour, described first groove and described second groove of adding is U-lag 1-6.

In the present embodiment, a sidewall of described first groove in vertically to lay and its another sidewall from top to bottom by The most outward-dipping, two sidewalls of described second groove are all in vertically to laying.

Further, the cloth of set top board transverse steel 1-4 in the spacing of multiple described first grooves and cantilever beam section 2 top board If spacing is consistent, the spacing of the most adjacent two described first grooves is 10cm or 15cm.

In the present embodiment, a sidewall of described first groove in vertically to lay and its another sidewall from top to bottom by The most outward-dipping.Thus, can effectively reduce the steel plate consumption of described longitudinal grooved angle steel 1-1.

In the present embodiment, the spacing of multiple described second grooves is set top board longitudinal reinforcement with in cantilever beam section 2 top board The laying spacing of 1-8 is consistent.

In the present embodiment, each described first vertical connecting bolt 1-3 all includes in vertically to the shank of bolt 1-3-1 laid With two nuts being installed in shank of bolt 1-3-1, two described nuts are divided into top nut 1-3-2 and are positioned at top nut 1-3-2 The lower nut 1-3-3, described top nut 1-3-2 and lower nut 1-3-3 of underface lay respectively at the described of longitudinal grooved angle steel 1-1 The both sides up and down on level right angle limit, described lower nut 1-3-3 is embedded in the top board of cantilever beam section 2；Described shank of bolt 1-3-1 with It is attached threadably between described level right angle limit.

Further, the structure of the multiple described first vertical connecting bolt 1-3 is the most identical with size；Described shank of bolt 1-3-1's A diameter of Φ 16mm～Φ 24mm, a length of 10cm～15cm in described shank of bolt 1-3-1 bottom embedment cantilever beam section 2 top board And its top is embedded in cantilever beam section 2 in the bridge deck pavement mated formation, described shank of bolt 1-3-1 upper end extend out to top nut 1- A length of 5cm～6cm outside 3-2.

In the present embodiment, the described first vertical connecting bolt 1-3 is high-strength bolt.

In the present embodiment, two described lateral connection angle steel 1-5 are respectively connected to two described longitudinal grooved angle steel 1-1 Front side angle cleat between Qian Ce and the rear side angle cleat between being connected on rear side of two described longitudinal grooved angle steel 1-1； Multiple second vertical connecting bolt 1-9, the described second vertical connecting bolt are installed on described rear side angle cleat from left to right 1-9 bottom is embedded in the top board of cantilever beam section 2, and the described level right angle limit of described rear side angle cleat has multiple difference The bolt mounting holes installed for the multiple described second vertical connecting bolt 1-9.

Further, the structure of the described second vertical connecting bolt 1-9 is all identical with the first vertical connecting bolt 1-3 with size, With spiral shell between shank of bolt 1-3-1 and the described level right angle limit of lateral connection angle steel 1-5 of the described second vertical connecting bolt 1-9 Stricture of vagina mode is attached.Further, the top nut 1-3-2 and lower nut 1-3-3 of the described second vertical connecting bolt 1-9 lays respectively at The both sides up and down on the described level right angle limit of lateral connection angle steel 1-5.

During actual installation, described longitudinal pushing reaction frame 4 is by the multiple described first vertical connecting bolt 1-3 and multiple institute State the second vertical connecting bolt 1-9 to be fixed on the pre-buried base of top board 1.

In the present embodiment, the multiple described second vertical connecting bolt 1-9 is that fold-line-shaped is laid.

In the present embodiment, the described vertical straight arm of angle of two described longitudinal grooved angle steel 1-1 is horizontal with many described top boards All it is fixedly connected in spot welding mode between reinforcing bar 1-4.

During practice of construction, before cantilever beam section 2 is carried out concrete pouring construction, pre-buried for described top board base 1 is fixed Install to the framework of steel reinforcement (i.e. roof steel bar) of cantilever beam section 2；Further, when base 1 pre-buried to described top board is installed, root According to the installation position of the external stiff skeleton (i.e. rigid support structure 5) being pre-designed, the peace of base 1 pre-buried to described top board Holding position is determined, and pre-buried for described top board base 1 and described external stiff skeleton is carried out examination splicing, subsequently at coagulation The described first pre-buried base of top board and roof steel bar are carried out spaced points solid welding before pouring by soil determines (specifically by two described longitudinal directions The described vertical straight arm of angle of fluting angle steel 1-1 carries out spot welding with many described top board transverse steel 1-4 to be fixed), after pushing tow completes The pre-buried base of described top board 1 is not required to remove.

Further, when connecting bolt 1-9 vertical to the first vertical connecting bolt 1-3 and second installs, bolt first it is screwed into Bar 1-3-1, then tighten lower nut 1-3-3, is most screwed into top nut 1-3-2.

As shown in Fig. 6-1, Fig. 6-2, Fig. 6-3 and Fig. 6-4, described longitudinal pushing reaction frame 4 include the first U-shaped steel plate 4-1, Two the first vertical steel lath 4-2 being laid in respectively above the first U-shaped steel plate 4-1 left and right sides, two lay respectively at two The first end junction steel plate 4-5 of described first vertical steel lath 4-2 front end outer side and one are connected to two described first and erect Between steel plate strip 4-2 rear end and for the first transverse connection of pushing tow jack 6 support top, described first U-shaped steel plate 4-1 is U Font and its be level lay, the middle part of described first U-shaped steel plate 4-1 be for pushing tow jack 6 install jack mounting groove； Two described first vertical steel lath 4-2 all lay along the length direction of the first U-shaped steel plate 4-1, described first transverse connection Lay in level and it is with the first vertical steel perpendicular laying of lath 4-2；Described first transverse connection be shaped steel and its before and after Two ends are respectively welded on the medial wall being fixed on two described first vertical steel lath 4-2, and described first transverse connection is positioned at On rear side of described jack mounting groove and it is weldingly fixed on the first U-shaped steel plate 4-1；Two described first end junction steel plate 4- 5 are respectively welded on the lateral wall being fixed on two described first vertical steel lath 4-2 and both is weldingly fixed on the first U-shaped steel The forward upper of plate 4-1；Described first U-shaped steel plate 4-1 by steel plate on the left of first, be positioned on the left of in the of described first on the right side of steel plate Steel plate and be connected on the left of in the of described first on the right side of steel plate and described first between steel plate steel plate group on rear side of in the of the first of rear side on the right side of in the of one Becoming, on the left of in the of described first, on the right side of steel plate and described first, steel plate is symmetrically laid, steel plate on the left of in the of described first, on the right side of described first Be provided with multiple confession respectively multiple fixing bolts installation on rear side of steel plate and described first on steel plate first fixes bolt installation Hole 4-1-1, multiple described first arranged on steel plate on the right side of steel plate and described first on the left of in the of described first fixes bolt mounting holes 4-1-1 all lays from front to back along the length direction of the first U-shaped steel plate 4-1, arranges many on rear side of in the of described first on steel plate Individual described first fixes bolt mounting holes 4-1-1 lays from left to right along the width of the first U-shaped steel plate 4-1；Two Described first end junction steel plate 4-5 is all in vertically to laying and both carries out cloth along the width of the first U-shaped steel plate 4-1 If two described first end junction steel plate 4-5 symmetrically lay, each described first end junction steel plate 4-5 is respectively provided with There is the second connecting bolt installing hole 4-5-1 installed for end connecting bolt；Described first U-shaped steel plate 4-1 is fixedly mounted on institute State on the pre-buried base of top board.

In the present embodiment, described second connecting bolt installing hole 4-5-1 is circular hole.Actual add man-hour, adjust for ease of error Whole, the aperture of described second connecting bolt installing hole 4-5-1 is more than the diameter of described end connecting bolt, the most described end The shank of bolt diameter of connecting bolt.

Time actually used, described fixing bolt is that described end connecting bolt is water in vertically to the vertical bolt laid Plain cloth sets.Further, when the pre-buried base of described top board is the described first pre-buried base of top board, described fixing bolt is first vertical Connecting bolt 1-3；When the pre-buried base of described top board is the pre-buried base 1 of described top board, described fixing bolt is first vertically to connect Connecting bolt 1-3.Described longitudinal pushing reaction frame 4 is bolted on the pre-buried base of described top board by multiple described fixing.

In the present embodiment, on rear side of in the of described first, on steel plate, the quantity of set second connecting bolt installing hole 4-5-1 is three Individual, three described second connecting bolt installing hole 4-5-1 include in the middle part of first be positioned on rear side of in the of described first in the middle part of steel plate Installing hole and symmetrical the first sidepiece installing hole being laid in the installing hole left and right sides in the middle part of in the of described first, two described first sidepieces Installing hole is respectively positioned on the rear side of installing hole in the middle part of in the of described first.

Actual adding man-hour, the height of described first transverse connection and two described first vertical steel lath 4-2 is identical.

In the present embodiment, two described first vertical steel lath 4-2 are respectively laid on the left of in the of described first on steel plate On the left of in the of first steel plate strip and be laid on the right side of in the of described first on steel plate first on the right side of steel plate strip, steel plate strip cloth on the left of in the of described first Being located on the left of in the of described first above the right side of steel plate, on the right side of in the of described first, steel plate strip is laid in the left side of steel plate on the right side of in the of described first Top.

Further, multiple described first arranged on steel plate on the left of described first is fixed bolt mounting holes 4-1-1 and is respectively positioned on institute Stating the left side of steel plate strip on the left of in the of first, multiple described first arranged on steel plate on the right side of in the of described first fixes bolt mounting holes 4-1- 1 is respectively positioned on the right side of steel plate strip on the right side of in the of described first.

In the present embodiment, it is equal that multiple described first arranged on steel plate on the left of in the of described first fixes bolt mounting holes 4-1-1 Being positioned at the middle part of steel plate on the left of in the of described first, multiple described first arranged on steel plate on the right side of in the of described first fixes bolt mounting holes 4-1-1 is respectively positioned on the middle part of steel plate on the right side of in the of described first.

Actual add man-hour, bolt mounting holes 4-1-1 can be fixed on steel plate on the left of described first first according to specific needs Installation position and described first on the right side of on steel plate the first installation position fixing bolt mounting holes 4-1-1 adjust accordingly.

In the present embodiment, described first transverse connection is the first channel-section steel 4-3.

Time actually used, described first transverse connection can also use the shaped steel of type.

Meanwhile, what described longitudinal pushing reaction frame 4 also included that polylith lays from left to right first puts more energy into floor 4-4, polylith The described first floor 4-4 that puts more energy into is the vertical steel plate laid along the first U-shaped steel plate 4-1 length direction, and first adds described in polylith Strength floor 4-4 is all weldingly fixed on the first U-shaped steel plate 4-1；The positive rear side of each described first vertical steel lath 4-2 is respectively provided with There is the one piece described first floor 4-4 that puts more energy into, be provided with described in polylith first on rear side of described first transverse connection and put more energy into floor 4- 4。

In the present embodiment, it is positioned at the first of the positive rear side of the first vertical steel lath 4-2 and puts more energy into floor 4-4 and first vertically steel plate Between bar 4-2 and be positioned at first on rear side of described first transverse connection and put more energy into floor 4-4 and described first transverse connection Between be all attached with welding manner.

Further, all first described first U-shaped steel plate 4-1 laid puts more energy into floor 4-4 in uniformly laying.Further, On rear side of described first transverse connection, set first quantity putting more energy into floor 4-4 is two pieces.

Time actually used, can according to specific needs, to being laid the first number putting more energy into floor 4-4 on the first U-shaped steel plate 4-1 Amount and each first installation position putting more energy into floor 4-4 adjust accordingly.

In the present embodiment, each described first vertical steel lath 4-2 all puts more energy into be positioned at its positive rear side first floor 4-4 Processing and fabricating is integrated, and the described first vertical steel lath 4-2 floor 4-4 that puts more energy into be positioned at its positive rear side first is connected formation one Individual sidepiece steel plate strip.

In the present embodiment, described first vertical steel lath 4-2 is rectangle steel plate.

Further, described first end junction steel plate 4-5 is rectangular steel plates or right-angled trapezium steel plate.In the present embodiment, described First end junction steel plate 4-5 is right-angled trapezium steel plate and its width is from top to bottom gradually increased.

Easy for processing and fabricating and can effectively reduce waste of material, reduce cost, described first U-shaped steel plate 4-1, two institutes State the first vertical steel lath 4-2 and two described first end junction steel plate 4-5 to be formed by one piece of rectangular steel plates cutting.This enforcement In example, as shown in Fig. 6-5, described first U-shaped steel plate 4-1, two described sidepiece steel plate strip and two described first ends connect Steel plate 4-5 is formed by one piece of rectangular steel plates cutting.

In the present embodiment, described first U-shaped steel plate 4-1, the first vertical steel lath 4-2 and first end junction steel plate 4-5 Thickness of slab be 10mm～16mm.

Time actually used, the length of described jack mounting groove more than described pushing tow jack 6 shrink after length and its Width is more than the width of described pushing tow jack 6.

Time actually used, first lay a this utility model, described rigidity respectively in the end of two described cantilever beam section 2 Support structure 5 is supported between two this utility model, and one end of described rigid support structure 5 for fixing end and its other end is Pushing end, is wherein positioned at the use state of the present utility model of the pushing end side of rigid support structure 5, refers to Fig. 1；It is positioned at just The use state of the present utility model of one layer of the fixing end of property support structure 5, refers to Fig. 2.Described pushing tow jack 6 rear portion support top On the first channel-section steel 4-3, and in anterior described pushing end withstanding on rigid support structure 5 of pushing tow jack 6；Described pushing tow thousand Jin top 6 constructs 5 layings on the same line with the rigid support of its pushing tow.

In the present embodiment, described rigid support structure 5 includes lower supporting steel plate 5-1, is laid on lower supporting steel plate 5-1 Rigid strutting piece 5-2 and two end steel plate 5-3 being laid in lower supporting steel plate 5-1 rear and front end respectively, described lower supporting steel Plate 5-1 all carries out along the pushing tow direction of cantilever beam section 2 with described rigid strutting piece laying and the length of the two is identical；Described lower Support steel plate 5-1 is rectangular steel plates, and described rigid strutting piece is positioned at the surface of lower supporting steel plate 5-1 and its width less than lower support The width of steel plate 5-1；Two described end steel plate 5-3 all carry out laying and both along the width of lower supporting steel plate 5-1 For vertical steel plate；Before and after described lower supporting steel plate 5-1, two ends are separately fixed on two described end steel plate 5-3, and rigidity Before and after support member 5-2, two ends are separately fixed on two described end steel plate 5-3；Described rigid strutting piece 5-2 is welded and fixed On lower supporting steel plate 5-1.Multiple bolt peace installed respectively is had for described end connecting bolt on described end steel plate 5-3 Dress hole.

Time actually used, between described end steel plate 5-3 and first end junction steel plate 4-5 by multiple described ends even Connecting bolt is attached, and described end connecting bolt is that level is laid.

Before longitudinal pushing tow, the fixing end of described rigid support structure 5 by multiple described ends connecting bolt, directly with Longitudinal pushing reaction frame 4 (specifically first end junction steel plate 4-5) that fixing side is installed is locked；And by multiple Longitudinal pushing reaction frame that pushing end and the pushing tow side of rigid support structure 5 are installed by described end connecting bolt 4 (specifically the One end junction steel plate 4-5) it is locked.When pushing tow jack 6 is installed, the front end of described pushing tow jack 6 Peak in the pushing end of described rigid support structure 5 and its rear end is supported on longitudinal pushing reaction frame 4 that pushing tow side is installed (on the most described first transverse connection).Should be noted: when being locked, it is impossible to be locked completely, top need to be reserved Push away displacement, i.e. reserved certain activity space between rigid support structure 5 and longitudinal pushing reaction frame 4.Thus reality peace During dress, the two ends of rigid support structure 5 are laid respectively between the described pushing reaction frame in two described cantilever beam section 2, and And the two ends of rigid support structure 5 are respectively with hard-wired described pushing reaction frame on two pre-buried bases of described top board even Connect.

Embodiment 2

As it is shown in fig. 7, in the present embodiment, as different from Example 1: described pushing reaction frame is oblique pushing reaction frame 3。

As shown in Fig. 7-1, Fig. 7-2 and Fig. 7-3, described oblique pushing reaction frame 3 includes fixation steel plate 3-6 and is laid in solid Determine the U-shaped steel plate reaction frame of steel plate 3-6 side, described fixation steel plate 3-6 and described U-shaped steel plate reaction frame all in level lay and Therebetween included angle A is less than 90 °；Wherein, described U-shaped steel plate reaction frame is positioned at inside fixation steel plate 3-6；

Described U-shaped steel plate reaction frame include the second U-shaped steel plate 3-1, two be laid in the second U-shaped steel plate about 3-1 respectively The second vertical steel lath 3-2 above both sides, two lay respectively at the of two described second vertical steel lath 3-2 front end outer side Two end junction steel plate 3-5 and one are connected between two described second vertical steel lath 3-2 rear ends and for pushing tow jack 6 Second transverse connection of support top, described second U-shaped steel plate 3-1 be U-shaped and its be level lay, described second U-shaped steel plate 3-1 is laid in same level with fixation steel plate 3-6 and the two is fastenedly connected and is integrated, and described second U-shaped steel plate 3-1 is positioned at Fixation steel plate 3-6 side and the jack mounting groove installed for confession pushing tow jack 6 in the middle part of it；Described second U-shaped steel plate 3-1's Length direction is consistent with the pushing tow direction of pushing tow jack 6；Two described second vertical steel lath 3-2 are all along the second U-shaped steel plate The length direction of 3-1 is laid, and described second transverse connection is that level is laid and itself and the second vertical steel perpendicular cloth of lath 3-2 If；Described second transverse connection is shaped steel and its rear and front end is respectively welded and is fixed on two described second vertical steel lath 3- On the medial wall of 2, described second transverse connection is positioned on rear side of described jack mounting groove；Two described the second ends connect steel Plate 3-5 is respectively welded on the lateral wall being fixed on two described second vertical steel lath 3-2 and both is weldingly fixed on the 2nd U The forward upper of shape steel plate 3-1；Described second U-shaped steel plate 3-1 by steel plate on the left of second, be positioned on the left of in the of described second on the right side of steel plate Second on the right side of steel plate and be connected on the left of in the of described second on the right side of steel plate and described second between steel plate steel on rear side of in the of the second of rear side Plate forms, and on the left of in the of described second, on the right side of steel plate and described second, steel plate is symmetrically laid；Two described the second end junction steel plates 3-5 is all in vertically to laying and both is laid along the width of the second U-shaped steel plate 3-1, two described the second ends Junction steel plate 3-5 symmetrically lays, and each described the second end junction steel plate 3-5 is provided with for described end connecting bolt The 3rd connecting bolt installing hole 3-5-1 installed；

Left side, right side and the rear side of described fixation steel plate 3-6 is provided with multiple respectively for the installation of multiple fixing bolts Second fixes bolt mounting holes 3-6-1, and multiple described second that the left side of described fixation steel plate 3-6 and right side are arranged fixes spiral shell Bolt installing hole 3-6-1 all lays from front to back along the length direction of fixation steel plate 3-6, sets on the upside of described fixation steel plate 3-6 Multiple described second put is fixed bolt mounting holes 3-6-1 and lays from left to right along the width of fixation steel plate 3-6；Institute State fixation steel plate 3-6 to be fixedly mounted on the pre-buried base of top board 1.

During actual installation, described oblique pushing reaction frame 3 is all by the multiple described first vertical connecting bolt 1-3 and multiple Described second vertical connecting bolt 1-9 is fixed on the pre-buried base of top board 1.

In the present embodiment, described second transverse connection is weldingly fixed on the second U-shaped steel plate 3-1.

In the present embodiment, described fixation steel plate 3-6 is along indulging bridge to laying.Described U-shaped steel plate reaction frame is along described top The pushing tow direction pushing away jack is laid.

In the present embodiment, the middle part of described fixation steel plate 3-6 has rectangular through-hole.

In the present embodiment, described 3rd connecting bolt installing hole 3-5-1 is circular hole.Actual add man-hour, adjust for ease of error Whole, the aperture of described 3rd connecting bolt installing hole 3-5-1 is more than the diameter of described end connecting bolt, the most described end The shank of bolt diameter of connecting bolt.

Time actually used, described fixing bolt is that described end connecting bolt is water in vertically to the vertical bolt laid Plain cloth sets.When the pre-buried base of described top board is the described first pre-buried base of top board, described fixing bolt is first vertically to connect Bolt 1-3；When the pre-buried base of described top board is the pre-buried base 1 of described top board, described fixing bolt is first vertically to connect spiral shell Bolt 1-3.Described oblique pushing reaction frame 3 is bolted on the pre-buried base of described top board by multiple described fixing.

In the present embodiment, on rear side of described fixation steel plate 3-6, the quantity of set 3rd connecting bolt installing hole 3-5-1 is three Individual, three described 3rd connecting bolt installing hole 3-5-1 include pacifying in the middle part of second be positioned in the middle part of on rear side of fixation steel plate 3-6 Dress hole and symmetrical the second sidepiece installing hole being laid in the installing hole left and right sides in the middle part of in the of described second, two described second sidepiece peaces Dress hole is respectively positioned on the rear side of installing hole in the middle part of in the of described second.

Actual adding man-hour, the height of described second transverse connection and two described second vertical steel lath 3-2 is identical.

In the present embodiment, two described second vertical steel lath 3-2 are respectively laid on the left of in the of described second on steel plate On the left of in the of second steel plate strip and be laid on the right side of in the of described second on steel plate second on the right side of steel plate strip, steel plate strip cloth on the left of in the of described second Being located on the left of in the of described second above the right side of steel plate, on the right side of in the of described second, steel plate strip is laid in the left side of steel plate on the right side of in the of described second Top.

In the present embodiment, multiple described second be provided with right side on the left of described fixation steel plate 3-6 is fixed bolt and installs Hole 3-6-1 is all in uniformly laying, and the second of on the left of described fixation steel plate 3-6 and right side setting fixes bolt mounting holes 3-6-1 Symmetrically lay.

Actual add man-hour, spiral shell can be fixed on the left of described fixation steel plate 3-6 and set by right side second according to specific needs Quantity and each second installation position fixing bolt mounting holes 3-6-1 of bolt installing hole 3-6-1 adjust accordingly.

In the present embodiment, described second transverse connection is the second channel-section steel 3-3.

Time actually used, described second transverse connection can also use the shaped steel of type.

In the present embodiment, the thickness of slab of described fixation steel plate 3-6 and the second U-shaped steel plate 3-1 is identical and the two connects under formation Horizontal steel plate.

Actual adding man-hour, described lower horizontal steel plate is one piece of deformed steel flats, and it is (the most described very heavy to open U-lag at its sidepiece Top mounting groove).

Meanwhile, described U-shaped steel plate reaction frame also includes the polylith width cloth from left to right along the second U-shaped steel plate 3-1 If second put more energy into floor 3-4, described in polylith, the second floor 3-4 that puts more energy into is and lays along the second U-shaped steel plate 3-1 length direction Vertical steel plate, the second floor 3-4 that puts more energy into all is weldingly fixed on described lower horizontal steel plate described in polylith；Each described second vertical The positive rear side of steel plate strip 3-2 is provided with one the described second floor 3-4 that puts more energy into, and is provided with on rear side of described second transverse connection Described in polylith, second puts more energy into floor 3-4.

In the present embodiment, it is positioned at the second of the positive rear side of the second vertical steel lath 3-2 and puts more energy into floor 3-4 and second vertically steel plate Between bar 3-2 and be positioned at second on rear side of described second transverse connection and put more energy into floor 3-4 and described second transverse connection Between be all attached with welding manner.

Further, all second described lower horizontal steel plate laid puts more energy into floor 3-4 in uniformly laying.Further, described On rear side of second transverse connection, set second quantity putting more energy into floor 3-4 is two pieces.

Time actually used, can according to specific needs, to being laid the second number putting more energy into floor 3-4 on described lower horizontal steel plate Amount and each second installation position putting more energy into floor 3-4 adjust accordingly.

In the present embodiment, each described second vertical steel lath 3-2 all puts more energy into be positioned at its positive rear side second floor 3-4 Processing and fabricating is integrated, and the described second vertical steel lath 3-2 floor 3-4 that puts more energy into be positioned at its positive rear side second is connected formation one Individual sidepiece steel plate strip.

In the present embodiment, described second vertical steel lath 3-2 is rectangle steel plate.

Further, described the second end junction steel plate 3-5 is rectangular steel plates or right-angled trapezium steel plate.In the present embodiment, described The second end junction steel plate 3-5 is right-angled trapezium steel plate and its width is from top to bottom gradually increased.

In the present embodiment, described fixation steel plate 3-6 and the second U-shaped steel plate 3-1 processing and fabricating are integrated.

In the present embodiment, described second U-shaped steel plate 3-1, fixation steel plate 3-6, the second vertical steel lath 3-2 and the second end The thickness of slab of junction steel plate 3-5 is 12mm～14mm.

Time actually used, the length of described jack mounting groove is more than the length after the contraction of described pushing tow jack and its width Degree is more than the width of described pushing tow jack.

Before oblique pushing tow, the fixing end of described rigid support structure 5 is by multiple described connecting bolts, directly with fixing The oblique pushing reaction frame 3 (specifically the second end junction steel plate 3-5) that side is installed is locked；And by multiple described (specifically the second end is even for the oblique pushing reaction frame 3 that the pushing end of rigid support structure 5 and pushing tow side are installed by connecting bolt Meet steel plate 3-5) it is locked.When installing pushing tow jack 6, the front end of described pushing tow jack 6 is propped up and is peaked at institute State in the pushing end of rigid support structure 5 and its rear end is supported in (specifically institute on the oblique pushing reaction frame 3 that pushing tow side is installed State on the second transverse connection).Should be noted: when being locked, it is impossible to be locked completely, pushing tow displacement need to be reserved, I.e. reserved certain activity space between rigid support structure 5 and oblique pushing reaction frame 3.

The above, be only preferred embodiment of the present utility model, not impose any restrictions this utility model, every Any simple modification, change and equivalent structure change above example made according to this utility model technical spirit, the most still Belong in the protection domain of technical solutions of the utility model.

Claims (10)

1. a continuous rigid frame bridge closure segment pushing tow top board top support structure, it is characterised in that: by the pre-buried base of top board (1) and solid The pushing reaction frame composition that Dingan County is contained on the pre-buried base of top board (1)；

The pre-buried base of described top board (1) is embedded on the top board of cantilever beam section (2) end of constructed continuous rigid frame bridge, described outstanding Arm beam section (2) is In Reinforced Concrete Box Girder, and the girder closure segment of constructed continuous rigid frame bridge is for being connected to two described cantilever beams Closure segment between section (2)；Described pushing reaction frame is longitudinal pushing reaction frame (4) or oblique pushing reaction frame (3)；

The pre-buried base of described top board (1) includes two symmetrical longitudinal grooved angle steel (1-1) laid and former and later two are respectively to two The lateral connection angle steel (1-5) that individual described longitudinal grooved angle steel (1-1) is attached, two described longitudinal grooved angle steel (1-1) All along vertical bridge in the cantilever beam section (2) being laid in constructed continuous rigid frame bridge；Two described longitudinal grooved angle steel (1-1) and two Individual described lateral connection angle steel (1-5) is right angle angle steel, and two described longitudinal grooved angle steel (1-1) and two described laterally connect Connect the level right angle limit of angle steel (1-5) to be all laid on the top board of cantilever beam section (2) and its vertical straight arm of angle is all embedded in cantilever In the top board of beam section (2)；It is provided with along vertical bridge to from front to back on the described level right angle limit of described longitudinal grooved angle steel (1-1) Multiple first vertical connecting bolt (1-3), the described first vertical connecting bolt (1-3) bottom is embedded in the top of cantilever beam section (2) In plate, the described level right angle limit of described longitudinal grooved angle steel (1-1) has multiple confession multiple described first respectively and vertically connects The bolt mounting holes that connecting bolt (1-3) is installed；Open from front to back on the described vertical straight arm of angle of described longitudinal grooved angle steel (1-1) There is multiple the first groove passed respectively for many top board transverse steels (1-4) set in cantilever beam section (2) top board, many Described top board transverse steel (1-4) is installed in multiple described first groove respectively；Two described lateral connection angle steel (1-5) are equal Lay along direction across bridge and the two symmetrically lays, on the described vertical straight arm of angle of described lateral connection angle steel (1-5) from left to right Have multiple the second groove passed respectively for many top board longitudinal reinforcements (1-8) set in cantilever beam section (2) top board, many Top board longitudinal reinforcement (1-8) described in root is installed in multiple described second groove respectively；

Described longitudinal pushing reaction frame (4) and oblique pushing reaction frame (3) are all by the multiple described first vertical connecting bolt (1- 3) it is fixed on the pre-buried base of top board (1).

2. according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 1, it is characterised in that: institute State longitudinal grooved angle steel (1-1) and lateral connection angle steel (1-5) is equal leg angle, described longitudinal grooved angle steel (1-1) and horizontal stroke Width to two right-angle sides of angle cleat (1-5) be the thickness of 100mm～200mm and two right-angle sides be 10mm～ 16mm。

3., according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 1 or 2, its feature exists In: have multiple steam vent (1-7) on the described level right angle limit of a described longitudinal grooved angle steel (1-1).

4., according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 1 or 2, its feature exists In: before two described lateral connection angle steel (1-5) are respectively connected between two described longitudinal grooved angle steel (1-1) front sides Side angle cleat and the rear side angle cleat being connected between two described longitudinal grooved angle steel (1-1) rear sides；Described rear side connects Connect and the multiple second vertical connecting bolt (1-9) is installed on angle steel from left to right, the described second vertical connecting bolt (1-9) bottom It is embedded in the top board of cantilever beam section (2), the described level right angle limit of described rear side angle cleat has multiple respectively for many The bolt mounting holes that individual described second vertical connecting bolt (1-9) is installed；

Described longitudinal pushing reaction frame (4) and oblique pushing reaction frame (3) are all by the multiple described first vertical connecting bolt (1- 3) it is fixed on the pre-buried base of top board (1) with the multiple described second vertical connecting bolt (1-9).

5. according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 4, it is characterised in that: institute State longitudinal pushing reaction frame (4) include the first U-shaped steel plate (4-1), two be laid in the first U-shaped steel plate (4-1) left and right two respectively The first vertical steel lath (4-2) above side, two lay respectively at two described first vertical steel lath (4-2) front end outer side First end junction steel plate (4-5) and one are connected between two described first vertical steel lath (4-2) rear ends and for pushing tow The transverse connection of jack (6) support top, described first U-shaped steel plate (4-1) be U-shaped and its be level lay, a described U The middle part of shape steel plate (4-1) is the jack mounting groove installed for pushing tow jack (6)；Two described first vertical steel laths (4-2) all along the first U-shaped steel plate (4-1) length direction lay, described transverse connection be level lay and its with first erect To steel plate strip (4-2) perpendicular laying；Described transverse connection is shaped steel and its rear and front end is respectively welded and is fixed on two institutes Stating on the medial wall of the first vertical steel lath (4-2), described transverse connection is positioned on rear side of described jack mounting groove and its weldering Connect and be fixed on the first U-shaped steel plate (4-1)；Two described first end junction steel plates (4-5) are respectively welded and are fixed on two institutes State on the lateral wall of the first vertical steel lath (4-2) and both is weldingly fixed on the forward upper of the first U-shaped steel plate (4-1)； Described first U-shaped steel plate (4-1) by steel plate on the left of first, be positioned on the left of in the of described first steel plate and company on the right side of first on the right side of steel plate It is connected on the left of in the of described first on the right side of steel plate and described first between steel plate steel plate composition on rear side of in the of the first of rear side, on the left of in the of described first On the right side of steel plate and described first, steel plate is symmetrically laid, steel plate on the left of in the of described first, steel plate and described first on the right side of described first Be provided with multiple confession respectively multiple fixing bolts installation on rear side steel plate first fixes bolt mounting holes (4-1-1), described Multiple described first arranged on steel plate on the right side of steel plate and described first on the left of in the of first fixes bolt mounting holes (4-1-1) all along the The length direction of one U-shaped steel plate (4-1) is laid from front to back, and multiple described first that described rear side steel plate is arranged is fixed Bolt mounting holes (4-1-1) is laid from left to right along the width of the first U-shaped steel plate (4-1)；Two described first ends Portion's junction steel plate (4-5) all in vertically to laying and both is laid along the width of the first U-shaped steel plate (4-1), two Individual described first end junction steel plate (4-5) is symmetrically laid, and each described first end junction steel plate (4-5) is provided with The the second connecting bolt installing hole (4-5-1) installed for end connecting bolt；Described first U-shaped steel plate (4-1) is fixedly mounted on On the pre-buried base of described top board；

Described first vertical connecting bolt (1-3) and the second vertical connecting bolt (1-9) are described fixing bolt.

6. according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 5, it is characterised in that: Also include that polylith lays from left to right first is put more energy into floor (4-4), and described in polylith, the first floor (4-4) of putting more energy into is along first The vertical steel plate that U-shaped steel plate (4-1) length direction is laid, the first floor (4-4) of putting more energy into all is weldingly fixed on a U described in polylith On shape steel plate (4-1)；The positive rear side of each described first vertical steel lath (4-2) is provided with one described first floor of putting more energy into (4-4), it is provided with described in polylith first on rear side of described transverse connection to put more energy into floor (4-4).

7. according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 5, it is characterised in that: institute Stating transverse connection is the first channel-section steel (4-3).

8. according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 4, it is characterised in that: institute State oblique pushing reaction frame (3) include fixation steel plate (3-6) and be laid in the U-shaped steel plate reaction frame of fixation steel plate (3-6) side, All in level, laying and included angle A therebetween are less than 90 ° for described fixation steel plate (3-6) and described U-shaped steel plate reaction frame；

Described U-shaped steel plate reaction frame include the second U-shaped steel plate (3-1), two be laid in respectively second U-shaped steel plate (3-1) left and right The second vertical steel lath (3-2) above both sides, two lay respectively at two described second vertical steel lath (3-2) front end outer side The second end junction steel plate (3-5) and one be connected between two described second vertical steel lath (3-2) rear ends and for top Push away the transverse connection of jack (6) support top, described second U-shaped steel plate (3-1) be U-shaped and its be that level is laid, described the Two U-shaped steel plates (3-1) are laid in same level with fixation steel plate (3-6) and the two is fastenedly connected and is integrated, described 2nd U Shape steel plate (3-1) is positioned at fixation steel plate (3-6) side and in the middle part of it for the jack mounting groove installed for pushing tow jack (6)； The length direction of described second U-shaped steel plate (3-1) is consistent with the pushing tow direction of pushing tow jack (6)；Two described second vertical Steel plate strip (3-2) all along the second U-shaped steel plate (3-1) length direction lay, described transverse connection be level lay and its with Second vertical steel lath (3-2) perpendicular laying；Described transverse connection is shaped steel and its rear and front end is respectively welded and is fixed on On the medial wall of two described second vertical steel laths (3-2), described transverse connection is positioned on rear side of described jack mounting groove； Two described the second end junction steel plates (3-5) are respectively welded the outside being fixed on two described second vertical steel laths (3-2) On wall and both is weldingly fixed on the forward upper of the second U-shaped steel plate (3-1)；Described second U-shaped steel plate (3-1) is left by second Side steel plate, it is positioned on the left of in the of described second on the right side of second on the right side of steel plate steel plate and is connected on the left of in the of described second steel plate and described the Steel plate composition on rear side of the second of rear side between steel plate on the right side of in the of two, on the left of in the of described second, on the right side of steel plate and described second, steel plate is symmetrically Lay；Two described the second end junction steel plates (3-5) are all in vertically to laying and both is along the second U-shaped steel plate (3-1) Width is laid, and two described the second end junction steel plates (3-5) are symmetrically laid, and each described the second end connects The 3rd connecting bolt installing hole (3-5-1) installed for end connecting bolt it is provided with on steel plate (3-5)；

Left side, right side and the rear side of described fixation steel plate (3-6) be provided with multiple install for multiple fixing bolts respectively the Two fix bolt mounting holes (3-6-1), and multiple described second that the left side of described fixation steel plate (3-6) and right side are arranged is fixed Bolt mounting holes (3-6-1) is all laid from front to back along the length direction of fixation steel plate (3-6), described fixation steel plate (3- 6) upside arrange multiple described second fix bolt mounting holes (3-6-1) along fixation steel plate (3-6) width by a left side extremely The right side is laid；Described fixation steel plate (3-6) is fixedly mounted on the pre-buried base of top board (1)；

Described first vertical connecting bolt (1-3) and the second vertical connecting bolt (1-9) are described fixing bolt.

9. according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 8, it is characterised in that: institute State the second ribbed stiffener that U-shaped steel plate reaction frame also includes that polylith is laid from left to right along the width of the second U-shaped steel plate (3-1) Plate (3-4), the second floor (3-4) of putting more energy into is the vertical steel laid along the second U-shaped steel plate (3-1) length direction described in polylith Plate, the second floor (3-4) of putting more energy into all is weldingly fixed on lower supporting steel plate described in polylith；Each described second vertical steel lath (3-2) positive rear side is provided with one piece described second floor (3-4) of putting more energy into, and is provided with polylith institute on rear side of described transverse connection State second to put more energy into floor (3-4).

10. according to a kind of continuous rigid frame bridge closure segment pushing tow top board top support structure described in claim 8, it is characterised in that: Described fixation steel plate (3-6) is laid along the vertical bridge of constructed continuous rigid frame bridge and is had rectangular through-hole in the middle part of it to carrying out.