CN106592439A - Steel box girder slide traction system and construction method thereof - Google Patents
Steel box girder slide traction system and construction method thereof Download PDFInfo
- Publication number
- CN106592439A CN106592439A CN201611239080.1A CN201611239080A CN106592439A CN 106592439 A CN106592439 A CN 106592439A CN 201611239080 A CN201611239080 A CN 201611239080A CN 106592439 A CN106592439 A CN 106592439A
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- Prior art keywords
- steel box
- sliding
- girder
- traction
- steel
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a steel box girder slide traction system. The steel box girder slide traction system comprises a slide device for making a steel box girder to slide and a traction device which is used for providing a traction force for the slide of the steel box girder; and the slide device includes two slide channels which are laid along the direction of the axis of a bridge and shifters arranged on the slide channels. According to the traction device, two traction points are arranged on each traction unit, wherein each traction point includes a traction counter-force seat pre-buried in the traction unit, a pull-anchor device arranged on the traction unit, a pull cable hinged to the traction unit, and a jack connected with the pull cable. With the steel box girder slide traction system of the invention adopted, synchronous, continuous and adjustable translation of the steel box girder can be realized, and the security of the steel box girder in the translation process can be improved.
Description
Technical field
The present invention relates to technical field of civil engineering, specifically, the present invention relates to a kind of steel box-girder sliding trailer system
And its construction method.
Background technology
The steel box-girder of large span stayed-cable bridge is lifted in end bay beam section using large-scale crane ship, and is positioned over temporarily and is deposited beam
On frame.End bay beam section is made up of more piece steel box-girder beam section, because the influence of topography is received in the installation of end bay, and deposits boom support restriction
Large-scale crane ship to be deposited and hang width when beam is constructed, and so as to cause end bay beam section disposably to be deposited in place with crane ship, is needed
Steel box-girder straight skidding is drawn in place.
In prior art, the sliding traction of beam section mostly is rail type traction sliding, and when making traction sliding, steel box-girder is by cunning
Bearing is moved in nose girder slide rail along track sliding, is widely used because its principle is simple.But, when rail type traction
Gliding method just occurs the situation that beam section shifts in sliding suitable for long range traction sliding, not only affects beam section
Being smoothed out for sliding, more can bring great problem to the security of beam section and sliding rail.
The content of the invention
The steel box-girder sliding traction system of the features such as purpose of the present invention aims to provide a kind of achievable synchronous, continuous, adjustable
System；
Another object of the present invention aims to provide a kind of construction method of steel box-girder sliding trailer system.
To achieve these goals, the present invention provides technical scheme below：
A kind of first aspect, there is provided steel box-girder sliding trailer system, including for carrying steel box girder segment line slip is entered
Slide device and the draw-gear for providing tractive force for the sliding of steel box girder segment；The slide device include along bridge to
Two slideways of laying and the shift unit being laid on the slideway；The draw-gear is laid with each traction unit
Two towing points, each towing point includes the traction counter-force seat being embedded in traction unit, is laid in the drawing anchor of traction unit
Device, the drag-line for being hinged on traction unit and the jack being connected with the drag-line.
Wherein, the slideway adopts section steel manufacture, and the shaped steel top surface to be placed in parallel laid inside and have the channel-section steel of steel plate.
Wherein, the shift unit is each on two slideways lays two.
Further, the shift unit is crawler type heavy body transporting unit.
Further, the crawler type heavy body transporting unit includes panel, two pieces be fixed on below the panel mutually
Parallel riser, the raceway plate being fixed between the riser and the cylindrical roller rolled around the raceway plate；The rolling
Guidance tape two ends are curved；Carrier bar is hinged between two cylindrical rollers of the arbitrary neighborhood, the carrier bar is end to end to be centered around
On the raceway plate.
Preferably, it is provided with directive wheel before and after each riser；The directive wheel wheel direction of principal axis and the cylindrical roller
Wheel direction of principal axis is vertical.
Further, the drawing anchor device includes fixator and p-type anchorage；Fixator includes clamping by the rubber of fixing component
Offset plate and the filling rubber slab and the steel plate by the gap between fixing component；The rubber slab is offered along vertical bridge to direction
For the through hole of the drag-line insertion；The p-type anchorage is arranged on the rubber slab and clamps the side phase by fixing component
To another side on, with fixation penetrate the rubber slab drag-line end.
Wherein, the drag-line is steel strand wires.
A kind of second aspect, there is provided construction method of steel box-girder sliding trailer system, the sliding trailer system is using such as
Steel box-girder sliding trailer system described in first aspect, the construction method of the sliding trailer system is comprised the following steps：
A installs the slide device, and the shift unit is laid in into sliding starting point；
B with bank to closure section direction lift at least one steel box girder segment to the shift unit；
C installs the draw-gear with the single steel box girder segment as traction unit；
D starts jack to drive the steel box girder segment to move to bank, and institute is unloaded afterwards in place in steel box girder segment sliding
State shift unit and draw-gear；
The shift unit for unloading is laid in sliding starting point, repeat step b to d by e again, until completing all steel box-girders
The sliding of sections.
Wherein, step a, in sliding starting point four shift units are averagely laid.
Wherein, side crane steel loading box girder segment of the crane barge from the slide device is adopted in step b.
Wherein, the step of unloading shift unit in step d be：All shift units that come off simultaneously make the load of steel box girder segment
Lotus is transferred on fixed support bracket.
Compared to existing technology, the solution of the present invention has advantages below：
The sliding trailer system of the present invention is made up of slide device with draw-gear.The traction sliding of steel box girder segment, with
Sliding trolley (heavy body transporting unit) is applied on traction counter-force seat by jack and is realized, fitted as slip medium, traction power
Sliding is drawn for over distance, and is capable of achieving synchronous, continuous, adjustable traction sliding, while also dependent on live feelings
Condition, is adjusted using the one side of jack pair beam section.More preferably, the present invention is arranged before and after the riser of sliding trolley and is oriented to
Wheel, prevents sliding trolley from driving steel box girder segment to wander off in slipping, improves security and the construction of beam section sliding
Efficiency.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
It is substantially and easy to understand, wherein：
Fig. 1 is that the draw-gear and its direction of motion of steel box-girder sliding trailer system in one embodiment of the invention are illustrated
Figure.
Fig. 2 is the drawing anchor device installation position schematic diagram of steel box-girder sliding trailer system in one embodiment of the invention.
Fig. 3 is to put corresponding to the drawing anchor device construction of the steel box-girder sliding trailer system of A in Fig. 2 in one embodiment of the invention
Big figure.
Fig. 4 is the heavy body transporting unit structural map of steel box-girder sliding trailer system in one embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
The present embodiment provides a kind of steel box-girder sliding trailer system, and it includes slide device and draw-gear.Refering to attached
Figure, will carry out detailed narration to the present invention below：
The slide device enters line slip for carrying steel box-girder, and it includes two slideways and shift unit.
Wherein, the slideway is laid immediately on end slipway beam using shaped steel and is made, and the model of the shaped steel is excellent
Elect 2I45 as；Further, channel-section steel is placed in parallel on shaped steel top surface, plays a part of stopper slot, limiting the shift unit can
Mobile position and the shift phenomenon occurred in slipping is reduced, the preferred 28a channel-section steels of the channel-section steel；Further, it is
Increase the rigidity of sliding rail, steel plate is laid in channel-section steel, the thickness of the laying steel plate is 2cm, and the preferably steel plate of 16Mn
Laid；Another security and steadiness in view of steel box-girder slipping, the installation of the slideway must ensure that top surface is put down
Whole, its flatness should be controlled within 2mm.
Wherein, the shift unit is each on two slideways lays two, i.e., in the present embodiment, preferably four displacements
Sliding medium of the device as steel box-girder.Further, the shift unit be crawler type heavy body transporting unit 4 (such as Fig. 4), the weight
Body transporting unit 4 includes panel 41, riser 42, raceway plate 43, several cylindrical rollers 44 and carrier bar 45；Wherein, the riser 42
Including two pieces be parallel to each other, the lower section of the panel 41 is both secured to；The raceway plate 43 is fixed on two pieces and is parallel to each other
Between the riser 42, the preferably transition on raceway plate 43 of the cylindrical roller 44 is easy in the curved design in its two ends；It is described
Cylindrical roller 44 is rolled around the raceway plate 43, and carrier bar 45 is hinged between two cylindrical rollers 44 of arbitrary neighborhood, described
Carrier bar 45 is end to end to be centered around on the raceway plate 43.Further, the heavy body transporting unit 4 also includes directive wheel 46,
The directive wheel 46 is arranged and vertical (the i.e. directive wheel 46 of its wheel direction of principal axis and the cylindrical roller 44 wheel direction of principal axis before and after riser
The direction of wheel shaft is parallel with slideway), each heavy body transporting unit 4 has four directive wheels 46, and the laying of the directive wheel 46 is favourable
It is parallel before and after it to be provided with beneficial to before holding steel box-girder sliding in preventing body transporting unit from driving steel box-girder to wander off in slipping
Capable direction.Preferably, the load-bearing of the heavy body transporting unit 4 is 200T.
The draw-gear is used to provide tractive force for the sliding of steel box-girder, and it is in each traction unit (in the present embodiment
It is middle traction unit be steel box girder segment) on be laid with two towing points, mainly serve for ensuring the balance of traction, each towing point is equal
Including traction counter-force seat 14, jack 11, draw anchor device 13 and drag-line 12.
The traction counter-force seat 14 is embedded in traction unit, for increasing the lifting surface area in distraction procedure, reduces steel
The generation of the problem that the steadiness that box girder segment is caused due to being towed device traction is reduced.
The jack 11 is hydraulic jack, is calculated by engineering practice, and one thousand is laid in each towing point
Jin top 11, and the jack 11 is horizontal synchronization continuous jack, if it is capable of achieving steel box girder segment occurring in sliding partially
During shifting, the one side (i.e. one of towing point) of steel box girder segment is adjusted, the entirety for realizing steel box girder segment sliding is put down
OK.It is by unilateral adjustment, reducing the time used that adjust when shifting, it is not necessary in carrying out to steel box girder segment
The adjustment of line alignment, further increases the efficiency of construction, reduces human cost.
The drawing anchor device 13 is laid on steel box girder segment, preferably the vertical and horizontal diaphragm junction (such as Fig. 2) of beam section, its bag
Include fixator 131 and p-type anchorage 132；The fixator 131 constitutes (such as Fig. 3) by 5 veneer structures, laying from top to down
Respectively rubber slab 1313, steel plate 1312, by fixing component 1311, steel plate 1312, rubber slab 1313；Wherein, the rubber slab
1313 are used for clamping by fixing component 1312, and offer the through hole for the insertion of the drag-line 12 to direction along vertical bridge；The steel
Plate 1312 is used to fill the rubber slab 1313 and by the gap between fixing component 1311.The p-type anchorage 132 is arranged on institute
State on the another side relative with the side by fixing component 1311 is clamped of rubber slab 1313, for fixed the rubber is run through
The end of the drag-line 12 of offset plate 1313.
The drag-line 12 connects jack 11 and draws anchor device 13, is mainly and the p-type anchorage with the connection of anchor device 13 is drawn
132 afterbodys for being hinged on steel box girder segment；Further, the drag-line 12 is steel strand wires, is preferably used in the present embodiment straight
Footpath is 15.24mm, and normal intensity is the steel strand wires of 1860Mpa.
Specifically, in the present embodiment, there is provided the example of the draw-gear used in actual condition, it is as follows：, it is known that monolithic
Beam (i.e. one section steel box girder segment) most weight is 400.1t, and the friction system for entering line slip using weight shift unit is 0.02 (because of reality
Border needs and there is systematic error, is calculated using 0.05 pair of follow-up operating mode), need tractive force 20t；With reference to known work
Condition condition, is the balance for ensureing beam section traction, two front haulage points need to be arranged in beam section so that the tractive force of single towing point
For 10t, while connect section using the horizontal continuity jack pair single-unit of two 100t being drawn so that the traction of beam section single is slided
The stroke of 25cm is realized in shifting.
It is adapted to above-mentioned steel box-girder sliding trailer system, the embodiment of the present invention provides a kind of steel box-girder sliding trailer system
Construction method, specifically includes following steps：
A installs the slide device, and the shift unit is laid in into sliding starting point；
Specifically, due to being designed with two slideways in the embodiment of the present invention, the shift unit is adapted to the slideway and has
Four；The cloth of the shift unit be set to sliding starting point averagely lay four shift units (will shift unit be divided to two slideways
Individually it is preset on the relevant position for supporting steel box girder segment, corresponding to a slideway two shift units, the shift unit is preset
That what is laid is smaller than the length of the vertical bridge of steel box girder segment to direction)；
B with bank to closure section direction lift at least one steel box girder segment to the shift unit；
Specifically, in this step, steel box girder segment is lifted one by one to shifting from the side of the slide device using crane barge
On the device of position, by the load transfer of steel box girder segment to shift unit.
Specifically, the shift unit includes panel, and welding hole is preferably offered on panel, when carrying out to steel box girder segment
After lifting, in addition it is also necessary to further carry out being fixedly connected between shift unit to the steel box girder segment using welding hole, it is ensured that
Security and steadiness of the steel box girder segment in slipping.
C installs the draw-gear with the single steel box girder segment as traction unit；
D starts jack to drive the steel box girder segment to move to bank, and institute is unloaded afterwards in place in steel box girder segment sliding
State shift unit and draw-gear；
Specifically, before the startup jack sliding steel box girder segment, also including step：Debugging slide device and inspection
Look into each link position of the sliding trailer system, it is ensured that the construction safety of sliding traction；It is described to be the step of unload shift unit
All shift units that come off simultaneously make the load transfer of steel box girder segment on fixed support bracket.
The shift unit for unloading is laid in sliding starting point, repeat step b to d by e again, until completing all steel box-girders
The sliding of sections.
In sum, master-plan of the invention is that the cunning for completing steel box-girder translation is made up of slide device and draw-gear
Trailer system is moved, slide device includes two slideways and four shift units, steel box-girder is lifted to slide device, adopts thousand
Jin top provides tractive force, counter-force seat and drag-line, draws anchor device tractive force to be acted on steel box-girder for sliding, makes steel box-girder longitudinal direction
Translation.The tractive force of the present invention is applied on counter-force seat by jack and is realized, is applied within single hour over distance sliding, and
Synchronous, continuous traction is capable of achieving, while according to actual slip situation, can be by single towing point in steel box-girder slipping
Skew be adjusted.
Only it is some embodiments of the present invention described in upper, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded
For protection scope of the present invention.
Claims (12)
1. a kind of steel box-girder sliding trailer system, it is characterised in that include for carrying the sliding that steel box girder segment enters line slip
Device and the draw-gear for providing tractive force for the sliding of steel box girder segment；
The slide device is included along bridge to two slideways of laying and the shift unit being laid on the slideway；
The draw-gear is laid with two towing points in each traction unit, and each towing point includes being embedded in traction list
Traction counter-force seat on position, it is laid in drawing anchor device, being hinged on the drag-line of traction unit and connect with the drag-line for traction unit
The jack for connecing.
2. steel box-girder sliding trailer system according to claim 1, it is characterised in that the slideway adopts section steel manufacture,
And the shaped steel top surface is placed in parallel laid inside and has the channel-section steel of steel plate.
3. steel box-girder sliding trailer system according to claim 1, it is characterised in that the shift unit is in two cunnings
It is each on road to lay two.
4. steel box-girder sliding trailer system according to claim 1, it is characterised in that the shift unit is crawler type weight
Body transporting unit.
5. steel box-girder sliding trailer system according to claim 4, it is characterised in that the crawler type heavy body transporting unit bag
Include panel, two pieces of risers being parallel to each other being fixed on below the panel, the raceway plate being fixed between the riser and
Around the cylindrical roller that the raceway plate is rolled；The raceway plate two ends are curved；Two cylindrical rollers of the arbitrary neighborhood it
Between be hinged with carrier bar, the carrier bar is end to end to be centered around on the raceway plate.
6. steel box-girder sliding trailer system according to claim 5, it is characterised in that be provided with before and after each riser
Directive wheel；The directive wheel wheel direction of principal axis is vertical with the cylindrical roller wheel direction of principal axis.
7. steel box-girder sliding trailer system according to claim 1, it is characterised in that the drawing anchor device include fixator with
And p-type anchorage；Fixator includes clamping by the rubber slab of fixing component and fills the rubber slab and by between fixing component
The steel plate in gap；The rubber slab offers the through hole for the drag-line insertion along vertical bridge to direction；The p-type anchorage is arranged on
On the rubber slab another side relative with the side by fixing component is clamped, the rubber slab is penetrated with fixation
The end of drag-line.
8. steel box-girder sliding trailer system according to claim 1, it is characterised in that the drag-line is steel strand wires.
9. a kind of construction method of steel box-girder sliding trailer system, it is characterised in that the sliding trailer system is using such as right
The steel box-girder sliding trailer system described in 1 is required, the construction method of the sliding trailer system is comprised the following steps：
A installs the slide device, and the shift unit is laid in into sliding starting point；
B with bank to closure section direction lift at least one steel box girder segment to the shift unit；
C installs the draw-gear with the single steel box girder segment as traction unit；
D starts jack to drive the steel box girder segment to move to bank, and the shifting is unloaded afterwards in place in steel box girder segment sliding
Position device and draw-gear；
The shift unit for unloading is laid in sliding starting point, repeat step b to d by e again, until completing all steel box girder segments
Sliding.
10. the construction method of steel box-girder sliding trailer system according to claim 9, it is characterised in that step a
In, averagely lay four shift units in sliding starting point.
The construction method of 11. steel box-girder sliding trailer systems according to claim 9, it is characterised in that adopt in step b
Side crane steel loading box girder segment of the crane barge from the slide device.
The construction method of 12. steel box-girder sliding trailer systems according to claim 9, it is characterised in that unload in step d
The step of shift unit is：All shift units that come off simultaneously make the load transfer of steel box girder segment to fixed support bracket
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239080.1A CN106592439A (en) | 2016-12-28 | 2016-12-28 | Steel box girder slide traction system and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239080.1A CN106592439A (en) | 2016-12-28 | 2016-12-28 | Steel box girder slide traction system and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106592439A true CN106592439A (en) | 2017-04-26 |
Family
ID=58604886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611239080.1A Pending CN106592439A (en) | 2016-12-28 | 2016-12-28 | Steel box girder slide traction system and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106592439A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886246A (en) * | 2019-12-18 | 2020-03-17 | 无锡圣丰建筑新材料有限公司 | Hole site deviation replacing device for shock insulation support |
| CN111926715A (en) * | 2020-08-20 | 2020-11-13 | 中交路桥华南工程有限公司 | Installation method of steel box girder bridge |
| CN113065183A (en) * | 2021-03-01 | 2021-07-02 | 中国建筑一局(集团)有限公司 | Optimization method, optimization device and optimization system of construction scheme |
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| CN110886246A (en) * | 2019-12-18 | 2020-03-17 | 无锡圣丰建筑新材料有限公司 | Hole site deviation replacing device for shock insulation support |
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Application publication date: 20170426 |