CN210288090U - Approach plate structure suitable for seamless bridge - Google Patents
Approach plate structure suitable for seamless bridge Download PDFInfo
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- CN210288090U CN210288090U CN201920935381.0U CN201920935381U CN210288090U CN 210288090 U CN210288090 U CN 210288090U CN 201920935381 U CN201920935381 U CN 201920935381U CN 210288090 U CN210288090 U CN 210288090U
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Abstract
The utility model provides a structure suitable for seamless bridge guide plate, including girder, the guide plate that is located the basic unit top behind the abutment, guide plate and girder are through reinforced bar connection, and the guide plate is connected through connecting elements with the basic unit, connecting elements include horizontal connecting plate that is located between the adjacent guide plate, two vertical plates that horizontal connecting plate both ends vertically extend and two horizontal plates that each vertical plate extends to the horizontal connecting plate of keeping away from, the guide plate is arranged in horizontal plate upper surface towards connecting elements's one end, connecting elements's horizontal connecting plate, two vertical plates and two horizontal plates constitute nearly word form, horizontal plate upper surface has a recess, be fixed with the movable support in the recess, the up end of movable support and guide plate lower surface contact, the utility model discloses utilize the movable support to realize the vertical deformation of bridge roof beam body, can effectively strengthen seamless bridge's anti-seismic performance, the driving comfort is improved, and the bridge is suitable for integral or semi-integral seamless bridges with large longitudinal deformation.
Description
Technical Field
The utility model relates to a be applicable to seamless bridge approach plate structure.
Background
Bridge expansion joints are weak points in the design of bridge structures, have become one of the difficult problems in the construction and maintenance of bridges, and are expensive and require long-term maintenance. Designers and scholars in China carry out valuable exploration on the aspects of mechanisms, performance, materials and the like of the expansion joint, play a positive role in solving the problem of longitudinal deformation of the bridge, but cannot fundamentally solve the problem that the expansion joint is easy to damage. Along with the development of economy, the traffic pressure is increased, the damage phenomenon of the bridge expansion joint is increasingly serious, and the pressure for maintaining the bridge expansion joint is also increased increasingly due to the increase of the maintenance period and the maintenance cost.
The problem of bridge expansion joint fragile is solved, mainly realize through improving telescoping device or canceling the expansion joint. The expansion joint can be improved only by reducing the replacement period and the damage degree of the expansion joint, but the problems of maintenance and replacement of the expansion joint cannot be fundamentally solved, the problems of difficult maintenance and high maintenance cost still exist, and the method for improving the expansion joint only can treat the symptoms and not the root causes. The expansion joint is reduced or even cancelled, so that the problem of damage caused by the expansion joint of the bridge in maintenance and replacement can be fundamentally solved, the integrity of the bridge is improved, and the disaster bearing capacity of the bridge is also improved.
The bridge without expansion joint features that it has integral bridge abutment, integral upper structure and flexible pile foundation and no expansion joint is used in the bridge abutment and bridge deck. The structure form of the non-expansion joint bridge can be a single span type or a multi-span continuous type. In this bridge type structure, the entire deck (from one end approach to the other) is continuous, and the concrete deck and the approach deck are also continuous and integral with the abutment. The expansion joint and the movable support at the tail end of the bridge deck are replaced by the control joint at the tail end of the guide plate.
Disclosure of Invention
The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is to provide a be applicable to seamless bridge access plate structure and construction method.
The utility model discloses a concrete implementation scheme is: the utility model provides a lead plate structure suitable for seamless bridge, includes the girder, is located the lead plate of abutment back basic unit top, lead plate and girder through steel bar connection, lead and be connected through connecting elements between plate and the basic unit, connecting elements is including two vertical boards and each vertical board that are located horizontal connecting plate, horizontal connecting plate both ends longitudinal extension between the adjacent lead plate and two horizontal boards that horizontal connecting plate extends dorsad, the horizontal plate upper surface is arranged in towards connecting elements's one end to the lead plate, connecting elements's horizontal connecting plate, two vertical boards and two horizontal boards constitute nearly word form, the horizontal plate upper surface is fluted, the recess internal fixation has the free bearing, the up end and the lead plate lower surface contact of free bearing.
Furthermore, surface layers are laid on the upper surfaces of the main beams, the guide plates and the horizontal connecting plates of the connecting members.
Furthermore, the vertical plates and the horizontal plates of the connecting members are embedded in the abutment rear base layer, and the horizontal connecting plates of the connecting members are positioned on the upper surface of the abutment rear base layer.
Further, the horizontal connecting plate, the two vertical plates and the two horizontal plates of the connecting component are integrally poured, the upper ends of the vertical plates are connected with the two ends of the horizontal connecting plate to form a right angle, and the lower ends of the vertical plates are connected with the ends, close to the inner ends, of the horizontal plates to form a right angle.
Furthermore, a gap between the movable support and the inner wall of the groove is filled with a shrinkage material.
Furthermore, the movable support can adopt a roller support or an anti-seismic ball support, and shrinkage materials are filled on two sides of the movable support and are made of natural rubber.
Furthermore, a cushion layer is arranged between the horizontal plate of the connecting component and the upper surface of the base layer behind the abutment.
The invention also comprises a construction method suitable for the seamless bridge approach plate structure, which is characterized by comprising the following steps: (1) constructing the upper structure of the bridge; (2) excavating soil behind the abutment; (3) laying a base layer and a cushion layer on the lower side of the horizontal wiring board on the soil surface after the abutment is excavated; (4) pouring concrete of the connecting plate, the vertical plate and the horizontal plate to enable the connecting plate, the vertical plate and the horizontal wiring board to form a connecting member in a shape like a Chinese character 'ji', uniformly placing movable supports in grooves of the horizontal plates at two ends of the connecting member, and filling rubber on two sides of each movable support; (5) placing the connecting component and the guide plate on the base layer (6) in sequence, welding one end of the guide plate facing the main beam into a whole through a steel bar, placing the other end of the guide plate on a horizontal plate at one end of the connecting component close to the abutment, and embedding the lower part of the connecting component into the base layer; (7) and (5) paving a surface layer integrally to finish full-bridge construction.
Compared with the prior art, the utility model discloses following beneficial effect has: the seamless bridge approach plate structure adopting the movable support releases the longitudinal displacement of the bridge generated by factors such as temperature change and the like by utilizing the movable support, can effectively enhance the anti-seismic performance of the seamless bridge, improves the driving comfort, and is suitable for integral or semi-integral seamless bridges with larger longitudinal deformation and requirements on the anti-seismic performance.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of fig. 1 a according to the present invention.
In the figure: 1-main beam, 2-connecting steel bar, 3-guide plate, 4-vertical plate, 5-horizontal connecting plate, 6-base layer, 7-shrinkage material, 8-movable support, 9-horizontal plate, 10-cushion layer and 11-surface layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, a structure suitable for seamless bridge leader board, including girder 1, the leader board 3 that is located 6 tops of abutment rear base, the leader board is connected through connecting reinforcement 2 with the girder, is connected through connecting elements between leader board and the base, connecting elements is including being located adjacent two horizontal connecting plates 5 between the leader board, two vertical boards 4 and each vertical board of horizontal connecting plate both ends longitudinal extension to the horizontal connecting plate 9 that extends of keeping away from, the leader board is arranged in the horizontal plate upper surface towards connecting elements's one end, connecting elements's horizontal connecting plate, two vertical boards and two horizontal boards constitute nearly word form, the horizontal plate upper surface has a recess, the recess internal fixation has movable support 8, movable support's up end and leader board lower surface contact.
In this embodiment, a surface layer 11 is laid on the upper surfaces of the horizontal connecting plates of the main beam, the guide plate and the connecting member.
In this embodiment, the vertical plates and the horizontal plates of the connecting members are embedded in the abutment rear base layer, and the horizontal connecting plates of the connecting members are located on the upper surface of the abutment rear base layer.
In this embodiment, the horizontal connecting plate, two vertical plates and two horizontal plates of connecting elements are integrally poured and formed, vertical plate upper end links to each other with the horizontal connecting plate both ends and forms the right angle, vertical plate lower extreme links to each other with the horizontal plate and forms the right angle by interior one end.
In this embodiment, the gap between the movable support and the inner wall of the groove is filled with a shrinkage material 7.
In this embodiment, the movable support may be a roller support or an anti-seismic ball support, and shrink materials are filled on both sides of the movable support, and the shrink materials are natural rubber.
In this embodiment, a cushion layer 10 is provided between the horizontal plate of the connecting member and the upper surface of the base layer behind the abutment.
The construction method of the seamless bridge approach plate structure can be carried out according to the following steps: (1) constructing the upper structure of the bridge; (2) excavating soil behind the abutment; (3) laying a base layer and a cushion layer on the lower side of the horizontal wiring board 5 on the soil surface after the abutment is excavated; (4) pouring concrete of the horizontal connecting plates 5, the vertical plates 4 and the horizontal plates 9 to enable the connecting plates, the vertical plates and the horizontal wiring boards to form a connecting member in a shape like a Chinese character 'ji', uniformly placing movable supports 8 in grooves of the horizontal plates at two ends of the connecting member, and filling rubber on two sides of each movable support; (5) placing a connecting component and a lead plate on a base layer (6) in sequence, welding one end of the lead plate facing a main beam into a whole through a connecting steel bar 2, placing the other end of the lead plate on a horizontal plate 9 at one end of the connecting component close to a bridge abutment, and embedding the lower part of the connecting component into the base layer 6; (7) and (5) paving a surface layer integrally to finish full-bridge construction.
Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (7)
1. The utility model provides a lead plate structure suitable for seamless bridge, its characterized in that includes the girder, is located the lead plate of abutment back basic unit top, lead plate and girder through steel bar connection, lead and be connected through connecting elements between plate and the basic unit, connecting elements is including two vertical boards and two horizontal boards that each vertical board that are located horizontal connecting plate, horizontal connecting plate both ends longitudinal extension between the adjacent lead plate extends to keeping away from horizontal connecting plate, the horizontal plate upper surface is arranged in to the one end of leading plate towards connecting elements, connecting elements's horizontal connecting plate, two vertical boards and two horizontal boards constitute nearly word form, the horizontal plate upper surface is fluted, the recess internal fixation has the free bearing, the up end and the lead plate lower surface contact of free bearing.
2. The access plate structure for the seamless bridge according to claim 1, wherein a surface layer is laid on the upper surfaces of the horizontal connecting plates of the main beams, the access plates and the connecting members.
3. The bridge approach plate structure suitable for the seamless bridge according to claim 1, wherein the vertical plates and the horizontal plates of the connecting members are embedded in the abutment rear base layer, and the horizontal connecting plates of the connecting members are positioned on the upper surface of the abutment rear base layer.
4. The bridge approach plate structure suitable for the seamless bridge according to claim 1, wherein the horizontal connecting plate, the two vertical plates and the two horizontal plates of the connecting member are integrally cast, the upper ends of the vertical plates are connected with the two ends of the horizontal connecting plate to form a right angle, and the lower ends of the vertical plates are connected with the inner ends of the horizontal plates to form a right angle.
5. The access plate structure for the seamless bridge according to claim 2, wherein the gap between the movable support and the inner wall of the groove is filled with a shrink material.
6. A construction of a leader board suitable for use in a seamless bridge according to claim 5 wherein: the movable support can adopt a roller support or an anti-seismic spherical hinge support, and shrinkage materials are filled at two sides of the movable support and are made of natural rubber.
7. A jointless access panel construction in accordance with claim 3 wherein: a cushion layer is arranged between the horizontal plate of the connecting component and the upper surface of the base layer behind the abutment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935381.0U CN210288090U (en) | 2019-06-20 | 2019-06-20 | Approach plate structure suitable for seamless bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935381.0U CN210288090U (en) | 2019-06-20 | 2019-06-20 | Approach plate structure suitable for seamless bridge |
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| CN210288090U true CN210288090U (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093851A (en) * | 2019-06-20 | 2019-08-06 | 福州大学 | One kind being suitable for seamless bridge corbel back slab construction and its construction method |
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2019
- 2019-06-20 CN CN201920935381.0U patent/CN210288090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093851A (en) * | 2019-06-20 | 2019-08-06 | 福州大学 | One kind being suitable for seamless bridge corbel back slab construction and its construction method |
| CN110093851B (en) * | 2019-06-20 | 2024-02-06 | 福州大学 | Approach plate structure suitable for seamless bridge and construction method thereof |
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