CN220183812U - Assembled prestressing force profiled steel sheet combination bridge floor continuous device - Google Patents
Assembled prestressing force profiled steel sheet combination bridge floor continuous device Download PDFInfo
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- CN220183812U CN220183812U CN202321458288.8U CN202321458288U CN220183812U CN 220183812 U CN220183812 U CN 220183812U CN 202321458288 U CN202321458288 U CN 202321458288U CN 220183812 U CN220183812 U CN 220183812U
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- profiled steel
- stiffening ribs
- steel sheet
- bridge deck
- steel sheets
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 121
- 239000010959 steel Substances 0.000 title claims abstract description 121
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 239000011083 cement mortar Substances 0.000 claims abstract description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 15
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 15
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 7
- 239000006261 foam material Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- OFCNXPDARWKPPY-UHFFFAOYSA-N allopurinol Chemical compound OC1=NC=NC2=C1C=NN2 OFCNXPDARWKPPY-UHFFFAOYSA-N 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 17
- 238000005336 cracking Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 7
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses an assembled prestress profiled steel sheet combined bridge deck continuous device which comprises a main beam and an inverted T-shaped bent cap positioned on one side of the main beam, wherein cement mortar leveling layers are arranged on the inverted T-shaped bent cap and the main beam, polytetrafluoroethylene plates are arranged on the cement mortar leveling layers, profiled steel sheets are arranged on the polytetrafluoroethylene plates, the two profiled steel sheets are vertically symmetrically arranged, small stiffening ribs and large stiffening ribs are arranged between the two profiled steel sheets, finish rolling screw thread steel is arranged on the small stiffening ribs and the large stiffening ribs in a penetrating mode, and the small stiffening ribs and the large stiffening ribs are connected through the finish rolling screw thread steel. The bridge deck continuous concrete cracking prevention device is applied to an inverted T-shaped bent cap simply supported beam bridge, and the bridge Liang Liangfeng can be effectively prevented from cracking by reasonable prestress tensioning. When the upper part of the bridge bears load, the device can longitudinally and freely slide on the bridge through the smooth polytetrafluoroethylene plate and the cement mortar leveling layer after being stressed, and the continuous constraint effect of the movement of the bridge body on the bridge deck can be effectively released.
Description
Technical Field
The utility model relates to an assembled prestress profiled steel sheet combined bridge deck continuous device, and belongs to the technical field of bridge engineering.
Background
The bridge is an important component and a key part of a road, and expansion joints are reserved between longitudinal beams of the bridge in order to adapt to the requirement of deformation of a bridge superstructure under the influence of factors such as temperature change, live load action, concrete shrinkage, creep and the like. In the daily use of the bridge, the expansion joint device is exposed to the atmosphere for a long time, directly bears the live load action of vehicles and pedestrians, is extremely easy to wear under the repeated action, is the part which is most easy to damage and is relatively difficult to repair in the bridge, and needs to be maintained frequently and replaced in time. Therefore, research and application of the bridge without the expansion joint are carried out. The bridge deck continuous structure is positioned at the position where the bridge girder deforms greatly, and the influence of the dislocation deformation caused by the asynchronous elastic compression of the rubber support which possibly occurs in the adjacent bridge holes causes the bridge deck continuous structure to be stressed very complicated. In addition, most of the existing bridge deck continuous devices are complex in construction, poor in stress performance and difficult to replace after wear. Therefore, there is a need to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the assembled prestress profiled steel sheet combined bridge deck continuous device applied to the simple girder and inverted T-shaped bent cap system, which has the advantages of simple structure and convenient installation, the profiled steel sheet and the stiffening rib can be prefabricated in factories in advance, the quality is guaranteed, the construction period can be greatly shortened during site construction, and the influence on the environment and traffic is smaller.
Specifically, the method comprises the following technical scheme:
the utility model provides an assembled prestress profiled steel plate combined bridge deck continuous device which comprises a main beam and an inverted T-shaped bent cap positioned on one side of the main beam, wherein cement mortar leveling layers are arranged on the inverted T-shaped bent cap and the main beam, polytetrafluoroethylene plates are arranged on the cement mortar leveling layers, profiled steel plates are arranged on the polytetrafluoroethylene plates, the two profiled steel plates are vertically and symmetrically arranged, small stiffening ribs and large stiffening ribs are arranged between the two profiled steel plates, and finish rolling screw thread steel is arranged on the small stiffening ribs and the large stiffening ribs in a penetrating mode, and the small stiffening ribs and the large stiffening ribs are connected through the finish rolling screw thread steel.
In one embodiment of the utility model, the profiled steel sheet is connected with the small stiffening ribs and the large stiffening ribs through bolts, a plurality of reserved holes which are uniformly arranged are arranged on the profiled steel sheet, and the bolts penetrate through the reserved holes on the profiled steel sheet and are connected with the small stiffening ribs and the large stiffening ribs.
In one embodiment of the utility model, the centers of the small stiffening ribs and the large stiffening ribs are provided with reserved holes, and the finish rolling deformed steel bars pass through the reserved holes of the small stiffening ribs and the large stiffening ribs and are connected with a prestress anchor; the prestress anchor is abutted with the large stiffening rib.
In one embodiment of the present utility model, a cavity structure is formed between the two profiled steel sheets and a filler is provided, and the filler is made of a waterproof foam material.
In one embodiment of the present utility model, the profiled steel sheet has a wavy shape.
In one embodiment of the present utility model, two large stiffeners are located at both end surfaces of the profiled steel sheet, and several small stiffeners are located at the trough positions where two corrugated profiled steel sheets are butted.
In one embodiment of the utility model, a beam seam is formed between the main beam and the inverted T-shaped bent cap, and the profiled steel sheet covers the beam seam between the main beam and the inverted T-shaped beam.
In one embodiment of the present utility model, the trough of the profiled steel sheet having a wave shape is located directly above the beam seam between the main beam and the inverted-T shaped bent cap.
In one embodiment of the utility model, a bridge deck pavement reinforcing steel bar net is arranged above the profiled steel sheet, connecting steel bars are arranged on the side surfaces of the profiled steel sheet, the bridge deck pavement reinforcing steel bar net and the connecting steel bars are connected with construction steel bars, and the bridge deck pavement reinforcing steel bar net is fixedly connected with the connecting steel bars.
In one embodiment of the present utility model, the angle of refraction and the degree of horizontal plane of the profiled steel sheet are greater than 45 degrees.
Advantageous effects
1. The bridge deck continuous concrete cracking can be effectively prevented by reasonable prestress tensioning through the cover bridge Liang Liangfeng when the bridge deck continuous concrete cracking prevention device is applied to the inverted T-shaped cover beam simply supported beam bridge. When the upper part of the bridge bears load, the device can longitudinally and freely slide on the bridge through the smooth polytetrafluoroethylene plate and the cement mortar leveling layer after being stressed, and the continuous constraint effect of the movement of the bridge body on the bridge deck can be effectively released. In addition, because the device components can be prefabricated in factories and installed on site, the influence of site construction on traffic and environment can be greatly reduced, and the quality of the prefabricated components is also more ensured. The bridge deck continuous device has good effect on preventing concrete cracking and damage at beam joints of the inverted T-shaped bent cap simply supported beam bridge.
2. The current manufacturing process of the profiled steel sheet is mature, the profiled steel sheet has light dead weight, high strength, high quality of industrial products and convenient construction and installation. The utility model innovatively uses the finish rolling deformed steel bar to apply prestress to the structure composed of the profiled steel sheet and the special stiffening rib, thereby forming a device which has quite reasonable structure and can be applied to bridge deck continuity. Due to the application of the prestress, the bending moment born by a part of the bridge can be counteracted, so that the cracking of the concrete is relieved. In addition, this device is placed on polytetrafluoroethylene board, can carry out the longitudinal free slip along the bridge after the bottom atress deformation, but also resume plastic deformation under the effect of reinforcing bar, greatly slowed down the fracture of concrete. The utility model can not only improve the rigidity of the bridge, but also save the consumption of steel bars and concrete when being used in the bridge deck system. The surface embossments of the profiled steel sheet can generate binding force with concrete to form a whole, and special stiffening ribs are matched to ensure that the bridge deck continuous device has high Jiang Chengzai force. All components of the bridge deck continuous device can be prefabricated in a factory, so that the quality can be guaranteed, the construction period can be greatly shortened, and the bridge deck continuous device is quite convenient to dismantle an old device and replace a new device.
Drawings
FIG. 1 is a front view of the assembled prestressed profiled steel sheet composite bridge deck continuous device of the utility model.
FIG. 2 is a partial left side view of the assembled prestressed profiled steel sheet composite deck continuous device of the utility model.
FIG. 3 is a schematic top view cross-section of the assembled prestressed profiled steel sheet composite deck continuous device of the utility model.
FIG. 4 is a construction diagram of the assembled prestressed profiled steel sheet composite bridge deck continuous device of the utility model.
In the figure, 1, profiled steel sheets, 2, small stiffening ribs, 3, large stiffening ribs, 4 finish rolling screw thread steel, 5 constructional steel bars, 6, connecting steel bars, 7, polytetrafluoroethylene plates, 8, fillers, 9, bolts, 10, inverted T-shaped bent caps, 11, main beams, 12, a concrete pavement layer, 13, a cement mortar leveling layer, 14, a bridge deck pavement reinforcing steel mesh, 15 and a prestress anchor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1-4, the utility model provides an assembled prestress profiled steel sheet combined bridge deck continuous device, which comprises a main beam 11 and an inverted-T-shaped bent cap 10 positioned on one side of the main beam 11, wherein cement mortar leveling layers 13 are arranged on the inverted-T-shaped bent cap 10 and the main beam 11, polytetrafluoroethylene plates 7 are arranged on the cement mortar leveling layers 13, profiled steel sheets 1 are arranged on the polytetrafluoroethylene plates 7, two profiled steel sheets 1 are symmetrically arranged up and down, a small stiffening rib 2 and a large stiffening rib 3 are arranged between the two profiled steel sheets 1, finish rolling screw steel 4 is arranged on each of the small stiffening rib 2 and the large stiffening rib 3 in a penetrating manner, and the small stiffening rib 2 and the large stiffening rib 3 are connected through the finish rolling screw steel 4.
Optionally, the profiled steel sheet 1 is connected with the small stiffening ribs 2 and the large stiffening ribs 3 through bolts 9, a plurality of reserved holes which are uniformly arranged are formed in the profiled steel sheet 1, and the bolts 9 penetrate through the reserved holes in the profiled steel sheet 1 and are connected with the small stiffening ribs 2 and the large stiffening ribs 3.
Optionally, the centers of the small stiffening rib 2 and the large stiffening rib 3 are respectively provided with a reserved hole, and the finish rolling deformed steel bars 4 penetrate through the reserved holes of the small stiffening rib 2 and the large stiffening rib 3 and are connected with a prestress anchor 15.
Optionally, the pre-stressed anchor 15 abuts the macro stiffener 3. The small stiffening ribs 2 and the large stiffening ribs 3 are connected by prestress tensioning outside the large stiffening ribs 3 through prestress anchors 15.
Optionally, a cavity structure is arranged between the two profiled steel sheets 1 and is provided with a filler 8, and the filler 8 is made of waterproof foam materials.
Alternatively, the profiled steel sheet 1 is wave-shaped.
Alternatively, two large stiffening ribs 3 are positioned on the left end face and the right end face of the profiled steel sheet 1, and a plurality of small stiffening ribs 2 are positioned at the trough position of the butt joint of the two wavy profiled steel sheets 1.
Optionally, a beam seam is formed between the main beam 11 and the inverted-T-shaped cover beam 10, and the profiled steel sheet 1 covers the beam seam between the main beam 11 and the inverted-T-shaped cover beam 10.
Alternatively, the trough of the profiled steel sheet 1 in a wave shape is arranged right above the beam seam between the main beam 11 and the inverted-T-shaped bent cap 10.
Optionally, the bridge deck pavement reinforcing steel bar net 14 is arranged above the profiled steel sheet 1, the connecting steel bars 6 are arranged on the side face of the profiled steel sheet 1, the bridge deck pavement reinforcing steel bar net 14 and the connecting steel bars 6 are both connected with the construction steel bars 5, and the bridge deck pavement reinforcing steel bar net 14 is fixedly connected with the connecting steel bars 6.
Optionally, the angle of refraction and the degree of the horizontal plane of the profiled steel sheet 1 are larger than 45 degrees, so that the profiled steel sheet is convenient for factory prefabrication and the stress performance of the device is more reasonable, and small deformation can be generated after the prestressing force is applied, but the whole structure is still basically stable. The inner cavity formed between the two profiled steel sheets 1 is filled with a filler 8 made of waterproof foam materials, so that corrosion of rainwater to steel materials is reduced. The cement mortar leveling layer 13 is paved at the appointed position on the upper part of the main beam 11, and the polytetrafluoroethylene plate 7 is placed on the cement mortar leveling layer 13, so that the device can move freely after being stressed to generate micro deformation, and the stress deformation cracking of concrete is slowed down.
The manufacturing process of the utility model comprises the following steps: uniformly punching the prefabricated profiled steel sheet 1 in a factory, wherein the stiffening ribs are formed by cold-folding the steel sheet, the uniform punching overlaps with the reserved holes of the profiled steel sheet 1, and the small stiffening ribs 2 are connected with the large stiffening ribs 3 and the profiled steel sheet 1 by bolts 9 after being aligned; in addition, a row of holes is reserved in the center of the side surfaces of the large stiffening rib 3 and the small stiffening rib 2, finish rolling deformed steel bars 4 are placed, a plurality of devices are transversely arranged along the bridge by applying prestress on the outer sides of the finish rolling deformed steel bars 4, and bolts 9 are used for connecting the middle parts.
Placing the profiled steel sheet 1 on a polytetrafluoroethylene plate 7 in a construction site, leveling with cement mortar in advance, aligning the trough pairs Ji Liangfeng of the profiled steel sheet 1, then placing the small stiffening ribs 2 and the large stiffening ribs 3, and connecting the reserved holes at the bottom by bolts 9; the finish rolling deformed steel bar 4 passes through the reserved holes of the stiffening ribs, then another pressed steel plate 1 is placed, and the holes are aligned and then connected by bolts 9; applying prestress connection at the connection part of the finish rolling deformed steel bar 4 and the large stiffening rib 3; connecting steel bars 6 and bridge deck pavement steel bar meshes 14 are fixedly connected, the inner cavity of each profiled steel sheet 1 is filled with a filler 8 made of waterproof foam materials, and finally a concrete pavement layer 12 is poured.
For newly-built bridges, the bridge deck continuous device can be installed on a construction site according to the steps, the device can be connected in a factory in advance, and a concrete pavement layer can be directly poured on the construction site by simple treatment. For old bridge transformation, after the original bridge deck continuous device is dismantled, the device can be installed after connecting steel bars are simply treated, and a concrete pavement layer is poured.
The bridge deck continuous concrete cracking can be effectively prevented by reasonable prestress tensioning through the cover bridge Liang Liangfeng when the bridge deck continuous concrete cracking prevention device is applied to the inverted T-shaped cover beam simply supported beam bridge. When the upper part of the bridge bears load, the device can longitudinally and freely slide on the bridge through the smooth polytetrafluoroethylene plate and the cement mortar leveling layer after being stressed, and the continuous constraint effect of the movement of the bridge body on the bridge deck can be effectively released. In addition, because the device components can be prefabricated in factories and installed on site, the influence of site construction on traffic and environment can be greatly reduced, and the quality of the prefabricated components is also more ensured. The bridge deck continuous device has good effect on preventing concrete cracking and damage at beam joints of the inverted T-shaped bent cap simply supported beam bridge.
The scope of the present utility model is not limited to the above-described embodiments, but is intended to be limited to the appended claims, any modifications, equivalents, improvements and alternatives falling within the spirit and principle of the inventive concept, which can be made by those skilled in the art.
Claims (10)
1. The utility model provides an assembled prestressing force profiled steel sheet combination bridge floor continuous device, its characterized in that, includes the girder and is located the inverted T type bent cap of girder one side, all be provided with cement mortar screed-coat on inverted T type bent cap and the girder, be provided with the polytetrafluoroethylene board on the cement mortar screed-coat, be provided with profiled steel sheet on the polytetrafluoroethylene board, two the upper and lower symmetrical arrangement of profiled steel sheet is provided with small-size stiffening rib and large-size stiffening rib between the profiled steel sheet, small-size stiffening rib and large-size stiffening rib all wear to be equipped with finish rolling screw thread steel, and small-size stiffening rib and large-size stiffening rib pass through the finish rolling screw thread steel and connect.
2. The continuous device for assembling prestressed profiled steel sheets and composite bridge deck according to claim 1, wherein the profiled steel sheets are connected with the small stiffening ribs and the large stiffening ribs by bolts, a plurality of reserved holes which are uniformly arranged are arranged on the profiled steel sheets, and the bolts penetrate through the reserved holes on the profiled steel sheets and are connected with the small stiffening ribs and the large stiffening ribs.
3. The continuous device for assembling the prestressed profiled steel sheet composite bridge deck according to claim 1, wherein the centers of said small-sized stiffening ribs and large-sized stiffening ribs are respectively provided with a reserved hole, and said finish rolling screw thread steel passes through the reserved holes of the small-sized stiffening ribs and the large-sized stiffening ribs and is connected with a prestressed anchorage device; the prestress anchor is abutted with the large stiffening rib.
4. The continuous device for assembling prestressed profiled steel sheets and composite bridge deck according to claim 1, wherein two profiled steel sheets are of hollow structure and are provided with filler, and the filler is made of waterproof foam material.
5. A continuous deck assembly of assembled prestressed profiled steel sheets as claimed in any one of claims 1-4, wherein said profiled steel sheets are wave-shaped.
6. The continuous bridge deck assembly of pre-stressed profiled steel sheets of claim 5, wherein two large stiffening ribs are located on both end faces of the profiled steel sheets and a plurality of small stiffening ribs are located at the trough position where two corrugated profiled steel sheets are butted.
7. The continuous bridge deck assembly pre-stressed steel sheet assembly device according to claim 5, wherein a beam seam is formed between the main beam and the inverted-T-shaped bent cap, and the steel sheet is covered on the beam seam between the main beam and the inverted-T-shaped beam.
8. The continuous bridge deck assembly of pre-stressed profiled steel sheets of claim 7, wherein the trough of the profiled steel sheet is in a wave shape directly above the beam gap between the main beam and the inverted-T shaped bent cap.
9. The assembled prestressed profiled steel sheet combined bridge deck continuous device according to claim 1, wherein a bridge deck pavement reinforcing mesh is arranged above the profiled steel sheet, connecting steel bars are arranged on the side surfaces of the profiled steel sheet, the bridge deck pavement reinforcing mesh and the connecting steel bars are connected with construction steel bars, and the bridge deck pavement reinforcing mesh is fixedly connected with the connecting steel bars.
10. The continuous bridge deck assembly of assembled prestressed profiled steel sheets of claim 1, wherein the angle of refraction and the degree of horizontal plane of said profiled steel sheets are greater than 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321458288.8U CN220183812U (en) | 2023-06-08 | 2023-06-08 | Assembled prestressing force profiled steel sheet combination bridge floor continuous device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321458288.8U CN220183812U (en) | 2023-06-08 | 2023-06-08 | Assembled prestressing force profiled steel sheet combination bridge floor continuous device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220183812U true CN220183812U (en) | 2023-12-15 |
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ID=89101662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321458288.8U Active CN220183812U (en) | 2023-06-08 | 2023-06-08 | Assembled prestressing force profiled steel sheet combination bridge floor continuous device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220183812U (en) |
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2023
- 2023-06-08 CN CN202321458288.8U patent/CN220183812U/en active Active
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