CN204715195U - A kind of Gang Liang – concrete slab composite continuous bridge hogging moment area cracking resistance structure - Google Patents
A kind of Gang Liang – concrete slab composite continuous bridge hogging moment area cracking resistance structure Download PDFInfo
- Publication number
- CN204715195U CN204715195U CN201520212968.0U CN201520212968U CN204715195U CN 204715195 U CN204715195 U CN 204715195U CN 201520212968 U CN201520212968 U CN 201520212968U CN 204715195 U CN204715195 U CN 204715195U
- Authority
- CN
- China
- Prior art keywords
- concrete slab
- bridge
- hogging moment
- moment area
- composite continuous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000005336 cracking Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000035882 stress Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 230000009429 distress Effects 0.000 abstract description 3
- 238000007873 sieving Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
A kind of girder steel of the utility model-concrete slab composite continuous bridge hogging moment area cracking resistance structure, belong to bridge engineering field, the girder steel of described girder steel-concrete slab composite continuous bridge is connected by WELDING STUDS with concrete slab, and Dun Dunding place is hogging moment area wherein, in this girder steel-concrete slab composite continuous bridge hogging moment area, Dun Dunding place concrete slab in direction across bridge shrinkage joint is set, and connection Collapsible structure body is set in this direction across bridge shrinkage joint, by arranging direction across bridge shrinkage joint and Collapsible structure body thereof in hogging moment area, reduce the deformation constrain of shrinkage joint place concrete section, reduce the tensile stress of concrete slab, thus solve the problem of Cracking of hogging moment area, Dun Dunding place in girder steel-concrete slab composite continuous bridge, the utility model cracking resistance tectonic sieving is simple and direct, easy construction, not only direction across bridge shrinkage joint can be set at the hogging moment of newly building bridge, and can be used for solving existing steel-concrete composite beam bridge hogging moment area distress in concrete problem.
Description
Technical field
A kind of Gang Liang – concrete slab composite continuous bridge hogging moment area of the utility model cracking resistance structure, belongs to bridge engineering field.
Background technology
Gang Liang – concrete slab composite continuous bridge utilizes the tensile property of steel and the good feature of concrete compressive property, and combine both co-operation, has obvious economic technique superiority relative to traditional steel box-girder.But for hogging moment area, Dun Dunding place in multispan steel-mixed composite continuous bridge, there will be the situation of concrete slab tension, if tensile stress control is improper, this beam bridge hogging moment area concrete will ftracture, reduce the durability of structure, affect the application life of bridge construction.
The method of existing solution composite continuous bridge hogging moment area concrete cracking problem has:
(1) at hogging moment area concrete slab inner stretch-draw prestressing force.The stretch-draw of the method prestressing tendon and anchoring complexity, and loss of prestress is difficult to control.
(2) adjust bearing relative elevation and form prestressing force.The method bearing adjustment engineering quantity is too large, and economic effect is poor.
(3) a longitudinally not shearing resistance anti-pulling connector is adopted.The method site operation shear connector workload is comparatively large, and is unfavorable for later maintenance.
Therefore, the new construction solving Gang Liang – concrete slab composite beam bridge hogging moment area distress in concrete problem must be sought, to increase the durability of girder steel-concrete slab composite beam bridge hogging moment area concrete slab, improve the application life of girder steel-concrete slab composite beam bridge.
Prior art bridge expanssion joint is all for beam-ends position, and shrinkage joint to be used in girder steel-Concrete Combination Continuous Beam bridge in Dun Dunding place hogging moment area concrete slab by the utility model, by arranging direction across bridge shrinkage joint in the concrete slab of hogging moment area, concrete slab in its hogging moment area is disconnected together with its longitudinal reinforcement, thus reduce the deformation constrain of shrinkage joint place concrete section, reduce the tensile stress of concrete slab.
The utility model has following technical advantage: (1), owing to disconnecting at shrinkage joint, hogging moment area place's concrete slab and reinforcing bar, effectively can discharge the constraint of this section concrete deformation, reduce the tensile stress of concrete slab.(2) effectively can reduce the concrete secondary stress that concrete shrinkage and creep and temperature effect cause, improve the Long-term mechanical behavior of concrete slab, improve the durability of concrete slab.(3) the utility model cracking resistance structure, not only can arrange shrinkage joint, one to multiple road according to actual needs, for newly building bridge, and can be used for exist curves, to solve existing steel-concrete composite beam bridge hogging moment area distress in concrete problem.(4) the utility model cracking resistance structure is simple and direct, and easy construction, cost performance is high.
Utility model content
The purpose of this utility model is to provide a kind of Gang Liang – concrete slab composite continuous bridge hogging moment area cracking resistance structure, to reduce the tensile stress of Gang Liang – concrete slab combination continuous beam hogging moment area concrete slab, improve the durability of concrete slab, solve existing steel-mixed combination continuous beam hogging moment area problem easy to crack.
The technical solution of the utility model is as follows:
A Gang Liang – concrete slab composite continuous bridge hogging moment area cracking resistance structure, the girder steel of described Gang Liang – concrete slab composite continuous bridge is connected by WELDING STUDS with concrete slab; This composite continuous bridge wherein Dun Dunding place is hogging moment area; In steel beam – concrete slab composite continuous bridge hogging moment area, Dun Dunding place concrete slab in direction across bridge shrinkage joint is set, arrange in this direction across bridge shrinkage joint and connect Collapsible structure body, by arranging direction across bridge shrinkage joint and Collapsible structure body thereof in hogging moment area, reduce the deformation constrain of shrinkage joint place concrete section, reduce the tensile stress of concrete slab, thus solve the problem of Cracking of hogging moment area, Dun Dunding place in steel beam – concrete slab composite continuous bridge.
The direction across bridge shrinkage joint arranged in the concrete slab of described hogging moment area, Dun Dunding place in steel beam – concrete slab composite continuous bridge, according to design requirement, arranges one to multiple road.
The bottom correspondence of the Collapsible structure body connected in described direction across bridge shrinkage joint is placed on the top flange plate of girder steel.
The Collapsible structure body connected in described direction across bridge shrinkage joint is elastic body or the extrusome that is slidably matched of bridge engineering.
Described girder steel is made up of top flange plate, web plate and back plate.
Described concrete slab is made up of concrete and reinforcing bar.
Accompanying drawing explanation
Fig. 1 the utility model beam bridge hogging moment area schematic front view.
Direction across bridge shrinkage joint, Fig. 2 the utility model beam bridge hogging moment area schematic front view.
Direction across bridge shrinkage joint, Fig. 3 the utility model beam bridge hogging moment area and elastic body schematic front view thereof.
Direction across bridge shrinkage joint, Fig. 4 the utility model hogging moment area and elastic body schematic cross-sectional view thereof.
Fig. 5 prior art Gang Liang – concrete slab composite continuous bridge hogging moment area schematic cross-sectional view.
Detailed description of the invention
Now by reference to the accompanying drawings, further illustrate the utility model how to implement:
A kind of Gang Liang – concrete slab composite continuous bridge hogging moment area of the utility model cracking resistance structure, the girder steel L of described Gang Liang – concrete slab composite continuous bridge is connected by WELDING STUDS 9 with concrete slab B, this composite continuous bridge wherein DunZDun top place is hogging moment area 1, described girder steel L is made up of top flange plate 4, web 5 and base plate 6, described concrete slab B is made up of concrete reinforcement 7 and concrete eight, in steel beam – concrete slab composite continuous bridge hogging moment area, place, DunZDun top 1 concrete slab B in direction across bridge shrinkage joint 2 is set, Collapsible structure body is connected between the both sides concrete slab B at this direction across bridge shrinkage joint 2, bottom this Collapsible structure body, correspondence is placed on the top flange plate 4 of girder steel L, according to design requirement, the direction across bridge shrinkage joint 2 in one to multiple road is set in Gang Liang – concrete slab composite continuous bridge hogging moment area, by in hogging moment area, direction across bridge shrinkage joint is set, make to disconnect together with its longitudinal reinforcement at the concrete slab B of its hogging moment area, reduce the deformation constrain of shrinkage joint place concrete section, reduce the tensile stress of concrete slab, thus solve the problem of Cracking of hogging moment area, Dun Dunding place in steel beam – concrete slab composite continuous bridge.
Construction method of the present utility model is as follows:
In factory, WELDING STUDS 9 is welded in girder steel top flange plate 4, after girder steel in-site installation is in place, direction across bridge shrinkage joint 2 is reserved in hogging moment area, colligation concrete slab reinforcing bar 7, concreting plate 8, reach after design strength until concrete slab, at reserved direction across bridge shrinkage joint 2 position connection Collapsible structure body, as the elastic body commonly used in bridge engineering or the structure be slidably matched, the bottom of this Collapsible structure body is placed on the top flange plate 4 of girder steel L, thus form the cracking resistance structure of girder steel of the present utility model-concrete slab composite continuous bridge hogging moment area.
The cracking resistance structure of a kind of steel-concrete composite continuous beam hogging moment area of the utility model, both newly-built girder steel and concrete slab composite continuous bridge hogging moment area had been can be used for, simultaneously, can be used for again the transformation of such beam bridge existing, namely reset direction across bridge shrinkage joint at the concrete slab at the hogging moment area place of such beam bridge, in shrinkage joint, connect Collapsible structure body.
Claims (6)
1. a steel beam – concrete slab composite continuous bridge hogging moment area cracking resistance structure, the girder steel of described steel beam – concrete slab composite continuous bridge is connected by WELDING STUDS with concrete slab; This composite continuous bridge wherein Dun Dunding place is hogging moment area; It is characterized in that, in steel beam – concrete slab composite continuous bridge hogging moment area, Dun Dunding place concrete slab in direction across bridge shrinkage joint is set, arrange in this direction across bridge shrinkage joint and connect Collapsible structure body, to reduce the deformation constrain of shrinkage joint place concrete section, reduce the tensile stress of concrete slab, thus solve the problem of Cracking of hogging moment area, Dun Dunding place in steel beam – concrete slab composite continuous bridge.
2. a kind of Gang Liang – concrete slab composite continuous bridge hogging moment area according to claim 1 cracking resistance structure, it is characterized in that, in steel beam – concrete slab composite continuous bridge hogging moment area, Dun Dunding place concrete slab in the direction across bridge shrinkage joint that arranges, according to design requirement, one to multiple road is set.
3. a kind of Gang Liang – concrete slab composite continuous bridge hogging moment area according to claim 1 cracking resistance structure, is characterized in that, the bottom correspondence of the Collapsible structure body connected in direction across bridge shrinkage joint is placed on the top flange plate of girder steel.
4. a kind of Gang Liang – concrete slab composite continuous bridge hogging moment area according to claim 1 cracking resistance structure, is characterized in that, the Collapsible structure body connected in direction across bridge shrinkage joint, is bridge engineering elastic body or the extrusome that is slidably matched.
5. a kind of Gang Liang – concrete slab composite continuous bridge hogging moment area according to claim 3 cracking resistance structure, it is characterized in that, girder steel is made up of top flange plate, web plate and back plate.
6. a kind of Gang Liang – concrete slab composite continuous bridge hogging moment area according to claim 1 cracking resistance structure, it is characterized in that, concrete slab is made up of concrete and reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520212968.0U CN204715195U (en) | 2015-04-09 | 2015-04-09 | A kind of Gang Liang – concrete slab composite continuous bridge hogging moment area cracking resistance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520212968.0U CN204715195U (en) | 2015-04-09 | 2015-04-09 | A kind of Gang Liang – concrete slab composite continuous bridge hogging moment area cracking resistance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204715195U true CN204715195U (en) | 2015-10-21 |
Family
ID=54314200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520212968.0U Expired - Fee Related CN204715195U (en) | 2015-04-09 | 2015-04-09 | A kind of Gang Liang – concrete slab composite continuous bridge hogging moment area cracking resistance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204715195U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727218A (en) * | 2015-04-09 | 2015-06-24 | 武汉市政工程设计研究院有限责任公司 | Anti-cracking structure for hogging moment region of steel beam-concrete slab combined continuous beam bridge |
| CN107476180A (en) * | 2017-08-09 | 2017-12-15 | 重庆交通大学 | Discharge the steel concrete composite continuous bridge of bridge guidance tape tension |
| CN108374317A (en) * | 2018-03-23 | 2018-08-07 | 中铁上海设计院集团有限公司 | A kind of steel concrete using mixing floorings combines continuous beam and its construction method entirely |
| CN110753769A (en) * | 2017-06-08 | 2020-02-04 | 何塞·拉蒙·巴斯克斯·鲁伊斯·德尔阿沃尔 | Reinforced concrete pavement with reduced thickness |
-
2015
- 2015-04-09 CN CN201520212968.0U patent/CN204715195U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727218A (en) * | 2015-04-09 | 2015-06-24 | 武汉市政工程设计研究院有限责任公司 | Anti-cracking structure for hogging moment region of steel beam-concrete slab combined continuous beam bridge |
| CN110753769A (en) * | 2017-06-08 | 2020-02-04 | 何塞·拉蒙·巴斯克斯·鲁伊斯·德尔阿沃尔 | Reinforced concrete pavement with reduced thickness |
| CN107476180A (en) * | 2017-08-09 | 2017-12-15 | 重庆交通大学 | Discharge the steel concrete composite continuous bridge of bridge guidance tape tension |
| CN107476180B (en) * | 2017-08-09 | 2019-09-10 | 重庆交通大学 | Discharge steel-concrete composite continuous bridge of bridge guidance tape tensile stress |
| CN108374317A (en) * | 2018-03-23 | 2018-08-07 | 中铁上海设计院集团有限公司 | A kind of steel concrete using mixing floorings combines continuous beam and its construction method entirely |
| CN108374317B (en) * | 2018-03-23 | 2023-11-10 | 中铁上海设计院集团有限公司 | Steel concrete full-combined continuous beam adopting mixed bridge deck and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204715195U (en) | A kind of Gang Liang – concrete slab composite continuous bridge hogging moment area cracking resistance structure | |
| CN202247707U (en) | Vertical external prestress and steel plate combined reinforcing box girder structure | |
| CN103924674A (en) | High-strength bolt shear key structure and constructing method thereof | |
| CN103147529A (en) | Assembly type energy dissipation and seismic mitigation shear wall structure system | |
| CN106988200B (en) | Longitudinal non-shearing resistance perforated steel plate anti-pulling connecting piece and construction method thereof | |
| CN108560419B (en) | L-shaped side groove UHPC bridge deck slab in hogging moment area of steel-concrete composite beam and longitudinal connection thereof | |
| CN205205654U (en) | Seam construction of precast concrete festival segmentation bridge | |
| CN105275092A (en) | Energy consumption type node for connecting section steel concrete beam and steel-plate-wrapped composite shear wall | |
| CN103114524A (en) | Light type wave-shaped steel and high-strength activity powder concrete composite bridge panel | |
| CN104831627A (en) | Bridge deck slab longitudinal unequal strength steel-concrete composite structure bridge and construction method thereof | |
| CN204081079U (en) | A kind of structure of open pore steel plate shear force | |
| CN205205646U (en) | Structure of reinforcing prefabricated segment formula concrete bridge intersegmental connection of festival | |
| CN203569698U (en) | Prestressed concrete beam and concrete-filled steel tube column joint structure | |
| CN103806594B (en) | A kind of precast concrete | |
| CN203878753U (en) | High-strength bolt shear key structure | |
| CN205046464U (en) | Prefabricated assembled concrete bridge mound | |
| CN203626054U (en) | U-shaped anchor bar embedded part | |
| CN110578289A (en) | Novel steel-concrete composite beam shear force connecting key | |
| CN103806593A (en) | Precast concrete member | |
| KR101577327B1 (en) | Hybrid composite girder | |
| CN103614975A (en) | Shear connector reinforcing method for failed hinge joint of assembly-type hollow slab girder | |
| CN203514528U (en) | Composite connection structure of concrete filled steel tubular column and thin steel plate shear wall | |
| CN104727218A (en) | Anti-cracking structure for hogging moment region of steel beam-concrete slab combined continuous beam bridge | |
| CN211200025U (en) | Shaped steel and concrete combined bridge | |
| CN204551219U (en) | The stage transverse prestress structure of oblique hinged precast hollow slab beam bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 |