CN205775826U - Single seam retractor device and bridge - Google Patents

Abstract

This utility model relates to a kind of single seam retractor device and bridge.Wherein, described single seam retractor device includes two side bars being positioned at both sides, expansion joint, two described side bars are oppositely arranged, also include being located in the waterproof adhesive tape between two described side bars and across described expansion joint, described waterproof adhesive tape bends the most successively, and its both ends respectively and described in two apparent surface between side bar be fitted and connected；Also provide for a kind of bridge, including above-mentioned retractor device.In retractor device of the present utility model, the waterproof adhesive tape bent successively is used to connect between two side bars, it is not only so that waterproof adhesive tape has preferable telescopicing performance in a crosswise direction, disclosure satisfy that the deformation requirements at expansion joint, and the rubble piled up on it can be extruded, preferable deslagging dustproof function can be played, such that it is able to retractor device service life on bridge is effectively ensured, reduce maintenance cost and cycle.

Description

Single seam retractor device and bridge

Technical field

This utility model relates to bridge and other building retractor devices, particularly relates to a kind of single seam retractor device and bridge Beam.

Background technology

Retractor device is the key position in bridge member, plays an important role in realizing bridge function.National standard " Standard for terms used in road engineering " (GBJ124-1988) and traffic industry standard " highway engineering noun structure term " (JTJ 002- 87) definition to bridge extension joint is: for making vehicle smoothly pass bridge floor and meet the needs of bridge deck structure deformation, at bridge floor The general name of the device arranged at variator.

At present, conventional bridge extension joint can be divided into according to system: 1. modulus bridge expansion device；2. fishback Bridge extension joint, such as common comb plate bridge expansion device, modular multi-directional deflection comb plate bridge expansion device, module comb Toothed plate type Multidirectional displacement bridge expansion device etc..Modulus type is stretched again by " Expansion Units for Highway Bridges " (JT/T 327-2004) Be equal in device, formal classification less than 80mm is " profile iron list seam ".

Single seam type steel expansion device is most popular a kind of retractor device on current highway bridge, accounts for whole bridge The 80% of beam retractor device consumption.The shaped steel that single seam bridge extension joint uses domestic hot-roll forming is main member, build-in Waterproof sealing waterproof adhesive tape is extrusome, and is equipped with anchor system.

By mounting groove wire feeding, conventional single seam type steel expansion device mainly has the most several:

1, be rigidly connected (Concrete Filled) single seam type steel expansion device

Single seam type steel expansion device that is rigidly connected mainly has c-type, F type, the common shaped steel type of 3 kinds of E type.

2, (resin or binding material are filled) single seam type steel expansion device is flexibly connected

When the anchorage zone of single seam type steel expansion device is due to the arrowhead deficiency of the reason such as structure, construction, as made With being rigidly connected, owing to fill concrete is the weakest, tend not to reach intended anchoring strength, be susceptible to the most broken Bad, the most preferably use the mode flexibly connected that retractor device is anchored, common have BEJ resin adhesive type type Steel retractor device and Betoflex flexibly connect formula type steel expansion device.

By the mounting groove degree of depth, can be divided into standard buried depth and shallow overburden two kinds, relevant to single seam anchoring system, the former uses anchor The list seam of the rigidity anchoring of plate and big annular dowel, its mounting groove degree of depth, 25～30cm, is embedded in girder, the many employings of the latter The list seam of the elastic anchoring such as peg, its fitting depth, at 15cm～16cm, is embedded in during bridge mats formation.

Single seam type steel expansion device uses the widest, and its force modes is relatively easy.To single seam type steel expansion device Speech, common damage-form has the most several:

1. anchorage zone concrete destruction

2. caulking gum band is the most aging, come off or rupture, and in fluid sealant, sanitary fill is too much, affects Telescopic.

And cause caulking gum band to leak and the main cause destroyed is: the shape of caulking gum band and central sill and side bar steel The degree of lip-rounding do not mate；Due to the stone on road surface, the impurity such as silt enters and is deposited in caulking gum band gap, big of rigidity Grain material is difficult to be extruded, and presses under wheel, owing to rubber strip is without support, and rubber strip finite thickness, therefore, at stone, The impurity such as silt are by under the extruding of wheel, and rubber strip is easily punctured, or extruding force is excessive, so that rubber strip two ends bayonet socket Easily it is extruded and shakes off, thus cause and leak under rainwater, dust, foreign material.

Utility model content

The purpose of this utility model is to provide a kind of single seam retractor device, it is intended to be used for solving existing retractor device Rubber strip easily pile up stone silt etc., in turn result in rubber strip and extrude the problem that comes off.

This utility model is achieved in that

This utility model embodiment provides a kind of single seam retractor device, including being positioned at two side bars of both sides, expansion joint, Two described side bars are oppositely arranged, and also include being located in the waterproof adhesive tape between two described side bars and across described expansion joint, Described waterproof adhesive tape bends the most successively, and its both ends respectively and described in two apparent surface between side bar fit even Connect.

Further, each described side bar is respectively provided with the slide plate extended to side bar another described, two described slide plates away from The end of corresponding described side bar is superimposed with each other, and two described slide plates are respectively positioned on the underface of described waterproof adhesive tape.

Further, the opposite face of side bar described in two is also provided with L-type plate, each described L-type plate and corresponding side bar Between form the U-type groove of opening upwards, two ends of described waterproof adhesive tape are clamped in two described U-type groove respectively.

Further, each described side bar also has the top board extended to side bar another described, and described top board is positioned at described U The surface of type groove, the end sections of described waterproof adhesive tape is posted by the lower surface of corresponding described top board.

Further, between every one end and corresponding described top board of described waterproof adhesive tape, also it is arranged with reinforcing bar lock Button.

Specifically, each described top board is respectively positioned on the top of corresponding described side bar, and its upper surface is plane.

Further, also include can at least one elastic connection plate of horizontal extension, each described elastic connection plate is along parallel Length direction in described expansion joint is spaced setting successively, and each described elastic connection plate is across described expansion joint and supports two institutes State slide plate.

Further, described elastic connection plate is bent into two shrapnel part being oppositely arranged, and two described shell fragments enclose shape Become arch horizontally toward, and bear against on two described side bars.

Further, described elastic connection plate has multiple, is oppositely arranged between two adjacent described elastic connection plates Or opposing setting.

Further, the bottom in each described side bar also has and is horizontally placed on the respective side concrete of described expansion joint Base plate.

Further, the concrete in both sides, described expansion joint is also separately installed with anchor tie plate, and described in two, side bar is respectively positioned on Between two described anchor tie plate, and each described side bar is both secured on the described anchor tie plate of correspondence.

Further, the concrete in both sides, described expansion joint is embedded with gantry type reinforcing bar, described gantry type steel the most respectively Muscle extends below the described anchor tie plate of respective side and welds between the two.

Further, each described gantry type reinforcing bar is also welded with the steel hoop being embedded in concrete, described annular Reinforcing bar is the most horizontal-extending by the described anchor tie plate of respective side.

This utility model embodiment also provides for a kind of bridge, including two abutments and at least one beam body, also include to A few above-mentioned single seam retractor device, each described side bar of each described single seam retractor device is installed on a wherein institute State abutment or wherein in beam body described in.

This utility model has the advantages that

Retractor device of the present utility model, waterproof adhesive tape is across expansion joint, and its both ends are then respectively arranged in and are oppositely arranged Two side bars on, waterproof adhesive tape along its across direction bend successively, in the profile of wavy repeatedly bending structure, for this Plant structure not only so that waterproof adhesive tape has preferable telescopicing performance in a crosswise direction, it is possible to the deformation meeting expansion joint is wanted Ask, simultaneously because this bending structure of waterproof adhesive tape, the space structure that two side bars enclose with waterproof adhesive tape can be reduced, and Its bending structure is similar to protrude the projection of horizontal plane, when stone or silting are on waterproof adhesive tape, passes through retractor device Contraction, space between squeezable retractor device, play preferable deslagging dustproof function.And when using this structure on bridge Retractor device, can meet normal Telescopic between abutment, can provide continuous print traffic loading end for driving, have good simultaneously Good water resistance, this retractor device is long for service life, and the maintenance of driving conventional single seam type steel expansion device can be greatly decreased Maintenance cost and cycle.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

The structural representation of the bridge that Fig. 1 provides for this utility model embodiment；

Fig. 2 is the structural representation of single seam retractor device of the bridge of Fig. 1；

Fig. 3 is the elastic connection plate of single seam retractor device of the bridge of Fig. 1 top view when arranging in the same direction；

The top view that Fig. 4 is that the elastic connection plate of single seam retractor device of the bridge of Fig. 1 is adjacent when arranging dorsad.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise The all other embodiments obtained, broadly fall into the scope of this utility model protection.

Seeing Fig. 1, this utility model embodiment provides a kind of single seam retractor device 1, including two side bars 11, side bar 11 Vertically it is built in the concrete of both sides, expansion joint 2, for being oppositely arranged between two side bars 11, is folded with between two side bars 11 Waterproof adhesive tape 12, waterproof adhesive tape 12 is across expansion joint 2, and bends successively along it across the direction at expansion joint 2 so that it is have at least Part-structure is the wavy profile repeatedly bent, two ends of waterproof adhesive tape 12 respectively with the relative table between two side bars 11 Face is fitted and connected.This utility model provide retractor device 1 can be applicable in bridge expanssion joint 2, the most adjacent beam body 3 or Form expansion joint 2 between person's abutment, at expansion joint 2, pour fiber concrete 31 in beam body 3 or abutment, and at other Place is then equipped with asphalt concrete pavement, is installed on fiber concrete 31 by side bar 11, and its side is fiber concrete 31, opposite side is then expansion joint 2 and towards another side bar 11, and waterproof adhesive tape 12 is made for water proof rubber, its both ends respectively with The surface that two side bars 11 are oppositely arranged is fitted and connected, and owing to waterproof adhesive tape 12 is positioned at the top at expansion joint 2, thus defines stretching The closure of contracting seam 2, rainwater, dust or other foreign material are all difficult to by the 2 times leakages in expansion joint, and another aspect is due to waterproof adhesive tape 12 fold successively and can form the version being similar to spring, and it is along having preferable elasticity across the direction at expansion joint 2, can To adapt to the deformation requirements at expansion joint 2, and the waterproof adhesive tape 12 of this foldable structure is used to make it compare traditional adhesive tape Main telescopic variation is by vertically transferring to laterally, owing to waterproof adhesive tape 12 is located between two side bars 11, and this horizontal stretching Change does not interferes with its stability connected, i.e. waterproof adhesive tape 12 will not be come off by between two side bars 11 easily, simultaneously because The wavy repeatedly bending structure profile of waterproof adhesive tape 12 after folding, it has the projection of horizontal plane, when stone or silt heap After amassing to waterproof adhesive tape 12, when retractor device overall shrinkage, by waterproof adhesive tape 12 telescopic variation, can be waterproof by accumulating in Stone or silt on adhesive tape 12 are extruded by between two side bars 11, take out of with wheel, thus reach the purpose of slagging-off.For side Just the installation to two side bars 11 is fixed, and also each has horizontally disposed base plate 13, base plate 13 at the bottom of each side bar 11 Crab-bolt is consolidated on the fiber concrete 31 of respective side.Can weld between base plate 13 with side bar 11, it is also possible to be formed in one Make, the contact area between side bar 11 and fiber concrete 31 can be increased by base plate 13, reduce wheel impacts load and make Local failure with lower-edge beam 11 anchorage zone concrete.

Seeing Fig. 1 and Fig. 2, optimize above-described embodiment, each side bar 11 is respectively provided with the slide plate extended to another side bar 11 14, two slide plates 14 have part-structure overlapping in the end away from corresponding side bar 11, and two slide plates 14 are respectively positioned on waterproof The underface of adhesive tape 12.In the present embodiment, it is superimposed with each other between two slide plates 14, forms overlap joint, this is deformed at expansion joint 2 Time, go up in the horizontal direction and slip relatively between two slide plates 14, can be formed, i.e. both do not interfere with the flexible change at expansion joint 2 Shape, on the other hand, two slide plates 14 are positioned at the lower section of waterproof adhesive tape 12, and waterproof adhesive tape 12 can contact with both, or be separated by, But spacing is the least, waterproof adhesive tape 12 can be formed vertical supporting role by two slide plates 14.When waterproof adhesive tape 12 Being extruded by rubble, two slide plates 14 can be that waterproof adhesive tape 12 provides counteracting force, so that rubble rolling at wheel After, the gap between two side bars 11 take out of, and then reduce the generation of card stone phenomenon.

See Fig. 2, optimize the structure of side bar 11 further, the opposite face between two side bars 11 is also provided with L-type plate 151, form the U-type groove 15 of opening upwards between each L-type plate 151 with corresponding side bar 11, two ends of above-mentioned waterproof adhesive tape 12 Portion is clamped in two U-type groove 15 respectively.Side height for its relative side bar 11 of U-type groove 15 is less, waterproof adhesive tape 12 Two ends have only in the U-type groove 15 that the bending carried out somewhat can stretch into correspondence, permissible by arranging U-type groove 15 on side bar 11 Simplify the installation between waterproof adhesive tape 12 and side bar 11.

Continuing to optimize above-described embodiment, each side bar 11 also has the top board 111 extended to another side bar 11, each top board 111 surfaces being positioned at corresponding U-type groove 15, when being in clamping connection in U-type groove 15 is stretched in the end of waterproof adhesive tape 12, marine glue The end of bar 12 has the lower surface laminating of the top board 111 of part-structure and respective side, and top board 111 is positioned at corresponding U-shaped The surface of groove 15, can improve the water resistance of retractor device 1.

Refer again to Fig. 1 and Fig. 2, further, between every one end and corresponding top board 111 of waterproof adhesive tape 12 Also it is arranged with reinforcing bar snap close 121.The end of waterproof adhesive tape 12 has part-structure and fits with top board 111, specially waterproof adhesive tape 12 fit near the part-structure of side bar 11 with top board 111, and at top board 111 away from end and the waterproof adhesive tape 12 of side bar 11 Between do not contact, i.e. along near the direction of side bar 11, between top board 111 and waterproof adhesive tape 12, form the jaws that bore is tapered, on The reinforcing bar snap close 121 stated is clamped in this jaws, and it can play the effect of clamping waterproof adhesive tape 12 so that waterproof adhesive tape 12 End will not be easily by abjection in U-type groove 15.Usually, each top board 111 is respectively positioned on the top of the side bar 11 of correspondence, table on it Face is plane, in it is generally aligned in the same plane with the asphalt concrete pavement in beam body 3 or abutment, can provide continuous print for driving Traffic loading end.

Seeing Fig. 1-Fig. 4, further, retractor device 1 also includes at least one elastic connection plate 16, each elastic connection Plate 16 all can stretch in the horizontal direction, and is spaced setting successively along each elastic connection plate of length direction 16 being parallel to expansion joint 2, Each elastic connection plate 16 is across expansion joint 2 and supports above-mentioned two slide plate 14.In the present embodiment, in the lower section of two slide plates 14 It is provided with at least one elastic connection plate 16, two slide plates 14 above it can be pointed to by elastic connection plate 16 and prevent Glue bar 12 plays supporting role, two ends of each elastic connection plate 16 lay respectively at expansion joint 2 both sides and respectively with Crab-bolt consolidation between corresponding side bar 11, and use crab-bolt consolidation can be conducive to elastic connection plate 16 stress, prevent tired broken Bad.Owing to elastic connection plate 16 can stretch in the horizontal direction, it is possible to meet the deformation requirements at expansion joint 2, and it connects two Individual side bar 11, can play similar and " elastic connecting hinge " effect, make the right and left beam 11 cooperative bearing, increase retractor device 1 structural integrity.

Seeing Fig. 1, Fig. 3 and Fig. 4, the structure of refinement elastic connection plate 16, it is formed by flat plate buckling and is oppositely arranged Two shrapnel part 161, two shell fragments enclose the arch formed horizontally toward, and bear against on two side bars 11.Elasticity is even Fishplate bar 16 is bow-shaped structural, and arched opening is towards the length bearing of trend at expansion joint 2, and two shrapnel part 161 are the most perpendicular Straight setting, part fits on the side bar 11 of correspondence respectively, and carries out crab-bolt consolidation with between corresponding side bar 11 respectively, and it passes through Two shrapnel part 161 along the elasticity across direction, expansion joint 2 to adapt to the deformation requirements at expansion joint 2.Usually, each flexible dress Put 1 and all include multiple elastic connection plate 16, and along the length direction at expansion joint 2 be positioned at the elastic connection plate 16 of centre with wherein One adjacent elastic connection plate 16 is oppositely arranged (the arched opening of two elastic connection plates 16 is relative), adjacent with another The opposing setting of elastic connection plate 16 (the arched opening of two elastic connection plates 16 mutually deviates from).Each bullet can certainly be made The opening of property connecting plate 16 is towards identical, and the distance between each elastic connection plate 16 is the most identical, and the most each elastic connection plate 16 is along stretching The length direction of contracting seam 2 is evenly arranged successively.

Refer again to Fig. 1 and Fig. 2, further, be also separately installed with in the fiber concrete 31 of both sides, expansion joint 2 Anchor tie plate 17, two side bars 11 are respectively positioned between two anchor tie plate 17, and each side bar 11 is both secured on the anchor tie plate 17 of correspondence. Anchor tie plate 17 is embedded in the fiber concrete 31 of respective side, and corresponding side bar 11 can be formed solid by the way of welding Determine, and anchor tie plate 17 also has part-structure and is positioned on the base plate 13 of respective side, also for welding between its with base plate 13, thus can To strengthen the stability of side bar 11 structure.Optimize above-described embodiment, bury the most respectively in the fiber concrete 31 of both sides, expansion joint 2 Being provided with gantry type reinforcing bar 18, this gantry type reinforcing bar 18 extends to the lower section of the anchor tie plate 17 of respective side, and its anchor with respective side Weld between arm-tie 17.Being specially gantry type reinforcing bar 18 is quadra structure, and its structure being positioned at lower section disconnects, gantry type Reinforcing bar 18 part is positioned at fiber concrete 31, also has part and is positioned at beam body 3 or abutment, and this is being installed gantry type During reinforcing bar 18, part should be carried out in time preparing beam body 3 or abutment pre-buried, and between anchor tie plate 17 and gantry type reinforcing bar 18 Carrying out two-sided welding, the stability of anchor tie plate 17 and side bar 11 can be further improved.Usually, at fiber coagulation Also being embedded with steel hoop 19 in soil 31, steel hoop 19 is horizontal-extending by the outside of the anchor tie plate 17 of respective side, i.e. gantry type The relative anchor tie plate 17 of reinforcing bar 18 is vertically extending, and steel hoop 19 is then horizontal-extending, by steel hoop relative to anchor tie plate 17 19 weld with the gantry type reinforcing bar 18 of respective side, thus by the steel hoop 19 of the same side, gantry type reinforcing bar 18 and anchor tie plate 17 are connected as an entirety.

Referring again to Fig. 1, this utility model embodiment also provides for a kind of bridge, including two abutments and at least one beam Body 3, forms expansion joint 2 between two adjacent beam body 3 or between beam body 3 and abutment, bridge also includes at least one The retractor device 1 stated, the waterproof adhesive tape 12 of each retractor device 1 is across on this expansion joint 2, specially the two of retractor device 1 Individual side bar 11 is respectively arranged in adjacent two beam body 3 or is respectively arranged in a wherein abutment and adjacent with this abutment In beam body 3.The present embodiment retractor device 1 by this structure, not only can meet the deformation requirements at corresponding expansion joint 2, energy There is provided continuous print traffic loading end for driving, and there is preferable water resistance, even and if there is stone on waterproof adhesive tape 12 Or during the accumulation of silt etc., under the vertical deformation of himself and the mating reaction of wavy repeatedly bending structure profile, When retractor device 1 overall shrinkage, above-mentioned stone silt etc. can be extruded, reach the purpose of deslagging dedusting, be effectively ensured flexible In the service life of device 1, maintenance cost and the cycle of driving conventional single seam type steel expansion device 1 can be greatly decreased.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model Protection domain within.

Claims (14)

1. a single seam retractor device, including being positioned at two side bars of both sides, expansion joint, two described side bars are oppositely arranged, its It is characterised by: also include being located in the waterproof adhesive tape between two described side bars and across described expansion joint, described waterproof adhesive tape Bend the most successively, and its both ends respectively and described in two apparent surface between side bar be fitted and connected.

2. single seam retractor device as claimed in claim 1, it is characterised in that: each described side bar is respectively provided with to described in another The slide plate that side bar extends, two described slide plates are superimposed with each other away from the end of corresponding described side bar, and two described slide plates are equal It is positioned at the underface of described waterproof adhesive tape.

3. single seam retractor device as claimed in claim 1, it is characterised in that: also it is respectively provided with on the opposite face of side bar described in two There is L-type plate, between each described L-type plate and corresponding side bar, form the U-type groove of opening upwards, two ends of described waterproof adhesive tape It is clamped in respectively in two described U-type groove.

4. single seam retractor device as claimed in claim 3, it is characterised in that: each described side bar also has to described in another The top board that side bar extends, described top board is positioned at the surface of described U-type groove, and the end sections of described waterproof adhesive tape is posted by correspondence The lower surface of described top board.

5. seam retractor device as claimed in claim 4 single, it is characterised in that: in every one end of described waterproof adhesive tape with right Reinforcing bar snap close also it is arranged with between the described top board answered.

6. single seam retractor device as claimed in claim 4, it is characterised in that: each described top board is respectively positioned on corresponding described limit The top of beam, and its upper surface is plane.

7. seam retractor device as claimed in claim 2 single, it is characterised in that: also including can at least one bullet of horizontal extension Property connecting plate, each described elastic connection plate is spaced setting, each described bullet successively along the length direction being parallel to described expansion joint Property connecting plate is across slide plate described in described expansion joint and vertical supporting two.

8. single seam retractor device as claimed in claim 7, it is characterised in that: described elastic connection plate is bent into and is oppositely arranged Two shrapnel part, two described shell fragments enclose the arch formed horizontally toward, and bear against on two described side bars.

9. single seam retractor device as claimed in claim 8, it is characterised in that: described elastic connection plate has multiple, adjacent Two described elastic connection plates between be oppositely arranged or opposing setting.

10. single seam retractor device as claimed in claim 1, it is characterised in that: also have in the bottom of each described side bar It is horizontally placed on the base plate on the respective side concrete of described expansion joint.

11. single seam retractor devices as claimed in claim 1, it is characterised in that: the concrete in both sides, described expansion joint is also Being separately installed with anchor tie plate, side bar described in two is respectively positioned between two described anchor tie plate, and each described side bar be both secured to right On the described anchor tie plate answered.

12. single seam retractor devices as claimed in claim 11, it is characterised in that: the concrete in both sides, described expansion joint is also Being embedded with gantry type reinforcing bar respectively, described gantry type reinforcing bar extends below the described anchor tie plate of respective side and welds between the two Connect.

13. single seam retractor devices as claimed in claim 12, it is characterised in that: each described gantry type reinforcing bar is also welded with The steel hoop being embedded in concrete, described steel hoop is the most horizontal-extending by the described anchor tie plate of respective side.

14. 1 kinds of bridges, including two abutments and at least one beam body, it is characterised in that: also include that at least one is such as right Requiring the single seam retractor device described in any one of 1-13, each described side bar of each described single seam retractor device is installed on Wherein abutment described in one or wherein in beam body described in.