CN204343164U - Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure - Google Patents
Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure Download PDFInfo
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- CN204343164U CN204343164U CN201420815823.5U CN201420815823U CN204343164U CN 204343164 U CN204343164 U CN 204343164U CN 201420815823 U CN201420815823 U CN 201420815823U CN 204343164 U CN204343164 U CN 204343164U
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Abstract
The utility model discloses a kind of Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure, horizontal shaped steel is set in hollowcore slab concrete bridge deck pavement, because the rigidity of shaped steel steel is large, directly increase the lateral stiffness of concrete bridge deck pavement; The increase of deck paving lateral stiffness, improve bridge lateral holistic resistant behavior, stress difference between plate is reduced, serve the effect reducing strand seam local stress, prevent because strand seam local stress is excessive and destroy, avoiding runing " single slab bearing " and the further disease of girder that hollowcore slab girder appears in the later stage; Due to the effect of deck paving shaped steel, the transformation that the cross direction profiles force-mechanism directly changing load between former Method Pre-stress Concrete Hollow Slab is transmitted to rigid beam by original hinged power transmission; After shaped steel lateral arrangement is located by spacer bars by job site, arrange bridge floor steel mesh reinforcement, build bridge deck concrete and complete construction, field operation amount is few; Be positioned at Roadway Construction, quick construction, be conventional construction technology, be beneficial to popularization.
Description
Technical field
The utility model belongs to highway, municipal Hollow Slab Beam Bridge field of bridge deck pavement, specifically be applicable to the deck paving of ordinary reinforced concrete hollowcore slab, pretensioned prestressing hollowcore slab and post-stressed hollowcore slab, be specifically related to Hollow Slab Beam Bridge deck installation structure.
Background technology
Hollow Slab Beam Bridge is little of one of footpath (10m ~ 20m) Reinforced Concrete Bridge and the most frequently used form of Prestressed Concrete Bridges, because cross section is wide and thin and cross section is hollow form gains the name.Hollow slab bridge is most is usually applicable to based on simply supported beam the beam bridge that span is less than 20m, is applicable to batch production batch production, fabricated construction.Hollowcore slab direction across bridge is made up of multi-disc plate, arranges strand seam between plate, and after girder hypothesis, the concrete-bridge that bridge floor builds 9cm ~ 20cm is mated formation.By strand seam, Hollow Slab Beam Bridge each piece of hollowcore slab is laterally realizing the transmission of shearing, and entirety bears the object of carload.
Along with the adjustment of China's economy develops, heavy vehicle and overloaded vehicle occur frequent, and the continuous damage cutting with scissors seam often appears in assembly hollow slab bridges.Degree is lighter, and ribbet concrete and hollowcore slab sidewall are separated, and rainwater permeates and gentle erosion concrete in a large number; Degree is serious, and hinge seam place concrete comes off completely, and by the serious Eroded of water, hollowcore slab loses lateral connection ability, occurs single slab bearing phenomenon.The basic reason of hinge seam continuous damage is that hinge seam shear strength is not enough, except affecting by concrete quality, depends on the cohesion between new-old concrete and frictional resistance to a great extent.
Hinge seam has important effect to the stressed of the hinged hollowcore slab of assembling, and between hollowcore slab, the transmission of vertical shear realizes by hinged structures, is realized lateral transport and the distribution of traffic load by the transmission of this shearing.When between plate, bonding strength deficiency resists the vertical shear of traffic load generation, between plate, joint sealing material concrete can ftracture, and the various vertical shear due to side and the torsional interaction produced, exacerbate concrete cracking between plate, under Driving Loading, there is so-called " single slab bearing " phenomenon, run counter to the general principle of hollowcore slab cross direction profiles design.The appearance of " single slab bearing " phenomenon, makes some plate stressed excessive, causes further disease.
The main method of reinforcing of strand seam extremely limitation is:
(1) again build strand seam and chemical mud jacking: strand seam can be repaired, but the root problem because bridge floor lateral stiffness deficiency causes strand seam to destroy can not be solved; (2) anchor connection steel plate below tongue and groove: construct under being positioned at bridge, construction inconvenience, limited to raising lateral rigidity of bridge; (3) transverse prestress: difficulty of construction is large, and cost is high, construction inconvenience.
Utility model content
For solving the problem, the utility model provides a kind of Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure.The increase of shaped steel-concrete bridge deck pavement lateral stiffness, improves bridge lateral holistic resistant behavior; The increase of deck paving lateral stiffness, stress difference between plate will be made to reduce, serve the effect reducing strand seam local stress, prevent strand seam from destroying because local stress is excessive, avoid the later stage to occur " single slab bearing " and the further disease of girder of hollowcore slab girder; Due to the effect of deck paving shaped steel, the transformation that the cross direction profiles force-mechanism directly changing load between former Method Pre-stress Concrete Hollow Slab is transmitted to rigid beam by original hinged power transmission.
For achieving the above object, the technical scheme that the utility model is taked is:
A kind of Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure, comprise shaped steel, bridge deck concrete, bridge floor steel mesh reinforcement and spacer bars, described shaped steel is many, be laid in described bridge deck concrete according to a determining deviation direction across bridge, described shaped steel and described spacer bars spot welding are fixed, described spacer bars is positioned at below described shaped steel, described shaped steel is furnished with bridge floor steel mesh reinforcement, bridge deck concrete built by described bridge floor steel mesh reinforcement, be some hollowcore slabs of prefabrication and lifting under described concrete, between described hollowcore slab, be provided with strand seam.
The utility model has following beneficial effect:
1, in the utility model, horizontal shaped steel is set in hollowcore slab concrete bridge deck pavement.Because the rigidity of shaped steel steel is large, directly increase the lateral stiffness of concrete bridge deck pavement.The increase of the lateral stiffness of deck paving, improves integral bridge stressed effect.
2, the utility model hollowcore slab concrete-type paving steel bridge deck, the existence of shaped steel greatly can improve the local pressure of strand seam.The increase of the lateral stiffness of deck paving, stress difference between plate will be made to reduce, serve the effect reducing strand seam local stress, prevent strand seam from destroying because local stress is excessive, avoid the later stage to occur " single slab bearing " and the further disease of girder of hollowcore slab girder.
3, the existence of deck paving shaped steel, the transformation that the cross direction profiles force-mechanism directly changing load between former Method Pre-stress Concrete Hollow Slab is transmitted to rigid beam by original hinged power transmission, load transmits more clearly between girder, more can be guaranteed.
4, the utility model hollowcore slab concrete-type paving steel bridge deck, after shaped steel lateral arrangement is located by job site, arrange bridge floor steel mesh reinforcement, concreting completes construction.Be positioned at Roadway Construction, field operation amount is few, quick construction.
5, the utility model hollowcore slab concrete-type paving steel bridge deck, reinforce (strengthening horizontal globality) relative to steel plate reinforcement horizontal under bridge or transverse prestress, technology is simply ripe, is conventional construction technology, is beneficial to popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model and advantage clearly understand, below in conjunction with example, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, this detailed description of the invention is by the following technical solutions: a kind of Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure, comprise shaped steel 1, bridge deck concrete 2, bridge floor steel mesh reinforcement 3 and spacer bars 4, described shaped steel 1 is many, be laid in described bridge deck concrete 2 according to a determining deviation direction across bridge, described shaped steel 1 is fixed with the spot welding of described spacer bars 4, described spacer bars 4 is positioned at below described shaped steel 1, described shaped steel 1 is furnished with bridge floor steel mesh reinforcement 3, bridge deck concrete 2 built by described bridge floor steel mesh reinforcement 3, described concrete is for 2 times some hollowcore slabs 5 of prefabrication and lifting, strand seam 6 is provided with between described hollowcore slab 5.
For newly building bridge and rehabilitation bridge the utility model detailed description of the invention be:
1, to newly building bridge, after hollowcore slab main beam supporting, arrange spacer bars 4 at back, shaped steel 1 is carried out spot welding with spacer bars 4 fix according to certain spacing lateral arrangement.After on shaped steel, arrange bridge floor steel mesh reinforcement 3, finally build bridge deck concrete 2.
2, to rehabilitation bridge, mat formation in the face of taking down the old bridge, then arrange spacer bars 4 according to newly building bridge sequence of construction at back, and shaped steel 1 is carried out spot welding with spacer bars 4 fix according to certain spacing lateral arrangement.After on shaped steel, arrange bridge floor steel mesh reinforcement 3, finally build bridge deck concrete 2.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure, it is characterized in that, comprise shaped steel (1), bridge deck concrete (2), bridge floor steel mesh reinforcement (3) and spacer bars (4), described shaped steel (1) is many, be laid in described bridge deck concrete (2) according to a determining deviation direction across bridge, described shaped steel (1) and described spacer bars (4) spot welding are fixed, described spacer bars (4) is positioned at described shaped steel (1) below, described shaped steel (1) is furnished with bridge floor steel mesh reinforcement (3), described bridge floor steel mesh reinforcement (3) has built bridge deck concrete (2), be some hollowcore slabs (5) of prefabrication and lifting under described concrete (2), strand seam (6) is provided with between described hollowcore slab (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815823.5U CN204343164U (en) | 2014-12-12 | 2014-12-12 | Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815823.5U CN204343164U (en) | 2014-12-12 | 2014-12-12 | Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204343164U true CN204343164U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420815823.5U Expired - Fee Related CN204343164U (en) | 2014-12-12 | 2014-12-12 | Hollow Slab Beam Bridge shaped steel-concrete bridge deck pavement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204343164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293480A (en) * | 2021-12-23 | 2022-04-08 | 浙江正方交通建设有限公司 | Comprehensive reinforcing structure for active hollow slab bridge and construction method |
-
2014
- 2014-12-12 CN CN201420815823.5U patent/CN204343164U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293480A (en) * | 2021-12-23 | 2022-04-08 | 浙江正方交通建设有限公司 | Comprehensive reinforcing structure for active hollow slab bridge and construction method |
| CN114293480B (en) * | 2021-12-23 | 2024-05-24 | 浙江正方交通建设有限公司 | Active hollow slab bridge comprehensive reinforcement structure and construction method |
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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: 20150520 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |