CN211228117U - Be applicable to seamless bridge drawing plate expansion joint structure - Google Patents
Be applicable to seamless bridge drawing plate expansion joint structure Download PDFInfo
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- CN211228117U CN211228117U CN201921798805.XU CN201921798805U CN211228117U CN 211228117 U CN211228117 U CN 211228117U CN 201921798805 U CN201921798805 U CN 201921798805U CN 211228117 U CN211228117 U CN 211228117U
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- guide plate
- expansion joint
- road surface
- seamless bridge
- wiring road
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Abstract
The utility model relates to a be applicable to seamless bridge guide plate expansion joint structure and construction method, place guide plate and wiring road surface on the sleeper beam including one end, be provided with the expansion joint between guide plate and the wiring road surface, be provided with the telescoping device who is connected with guide plate and wiring road surface respectively in the expansion joint, the surface course has been laid to the upside that is located guide plate, wiring road surface and expansion joint. The expansion joint structure suitable for the seamless bridge guide plate and the construction method effectively enhance the deformation adapting capacity of the seamless bridge, improve the durability of the expansion device and prolong the service life of the expansion device.
Description
Technical Field
The utility model relates to a be applicable to seamless bridge drawing plate seam structure that expands.
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. For this reason, a suitable expansion joint structure for a seamless bridge approach plate is required.
Disclosure of Invention
An object of the utility model is to provide a be applicable to seamless bridge access plate expansion joint structure, through this ability that is applicable to seamless bridge access plate expansion joint structure and construction method and effectively strengthens seamless bridge adaptation deformation, improved durability and life.
The technical scheme of the utility model lies in: the utility model provides a draw plate expansion joint structure suitable for seamless bridge, includes that one end is placed draw plate and wiring road surface on the sleeper beam, be provided with the expansion joint between draw plate and the wiring road surface, be provided with the telescoping device who is connected with draw plate and wiring road surface respectively in the expansion joint, the surface course has been laid to the upside that is located draw plate, wiring road surface and expansion joint.
Furthermore, the telescoping device includes that both ends are flat and straight board and the middle is corrugated steel plate, the flat and straight board at corrugated steel plate both ends sets up respectively in the upper surface on drawing board and wiring road surface to be connected with drawing board and wiring road surface through the bolt respectively, corrugated steel plate middle part's corrugated intussuseption is filled with gap filling material.
Further, the height of the corrugated steel plate is consistent with that of the lead plate and the wiring road surface, and the corrugated steel plate is arranged between the lead plate and the wiring road surface and on the upper side of the sleeper beam.
Furthermore, the upper end face of the gap filling material is flush with the lead plate and the wiring road surface, and the gap filling material is TST material or rubber.
Furthermore, a crack-resistant isolation layer positioned on the upper side of the expansion joint is arranged between the expansion joint and the surface layer.
Furthermore, a sliding layer is arranged between the guide plate, the wiring road surface and the sleeper beam.
Further, the sliding layer is polyethylene or fiber cloth.
Compared with the prior art, the utility model has the advantages of it is following: the expansion device in the expansion joint structure suitable for the seamless bridge approach plate comprises a corrugated steel plate, an elastic joint filling material and the like, and the corrugated steel plate has strong shearing resistance and bearing capacity and good contraction deformation capacity in the axial direction; and through the combination of wave form steel sheet and elastic material, can shift the flexible volume of bridge girder to the wave form steel sheet, improved this novel expansion joint greatly and absorbed the ability of flexible deformation. Meanwhile, the longitudinal length and the corrugation number of the built-in corrugated steel plate are adjusted to meet different expansion amount requirements of the whole bridge, and the adaptability is strong. In addition, the built-in corrugated steel plate and the elastic joint filling material form a compact waterproof structure, so that the durability of the telescopic device is improved, and the service life of the telescopic device is prolonged. The telescopic device is simple to use and convenient to replace, and only the bridge deck pavement structure of the suction and transformation device needs to be locally processed. The novel expansion joint can effectively enhance the adaptive deformation capacity of the seamless bridge, improves the driving comfort, and is suitable for integral or semi-integral seamless bridges with large longitudinal deformation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view showing the construction of a corrugated steel plate according to the present invention;
in the figure: 1-lead plate, 2-wiring pavement, 3-sleeper beam, 4-sliding layer, 5-crack-resistant isolation layer, 6-surface layer, 7-base layer, 8-straight plate, 9-straight plate, 10-corrugated steel plate, 11-gap filling material and 12-bolt.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1 to 3
The utility model provides a draw plate expansion joint structure suitable for seamless bridge, includes that one end is placed draw plate 1 and wiring road surface 2 on the sleeper beam, be provided with the expansion joint between draw plate and the wiring road surface, be provided with the telescoping device who is connected with draw plate and wiring road surface respectively in the expansion joint, the upside that is located draw plate, wiring road surface and expansion joint has laid surface course 6.
In this embodiment, the telescopic device includes a corrugated steel plate 10 having flat plates 8 and 9 at two ends and a concave-convex middle part, the flat plates at two ends of the corrugated steel plate are respectively disposed on the upper surfaces of the lead plate and the wiring road surface and are respectively connected with the lead plate and the wiring road surface through bolts 12, and the concave-convex middle part of the corrugated steel plate is filled with a gap filling material 11. Because the corrugated steel plate with the concave-convex shape can have good contraction deformation capacity, the capacity of the expansion joint for absorbing the expansion displacement of the guide plate can be effectively improved, the capacity of the seamless bridge for adapting to deformation can be better improved, and the thermal expansion pressure stress of the wiring pavement can be released.
In this embodiment, in order to make the telescoping device better adapt to the expansion joint, the height of the corrugated steel plate is consistent with that of the guide plate and the wiring road surface, and the corrugated steel plate is arranged between the guide plate and the wiring road surface and on the upper side of the sleeper beam.
In this embodiment, in order to ensure the overall effect of the expansion device and avoid interference with the installation of the lead plate and the wiring road surface, the upper end surface of the gap filling material is flush with the lead plate and the wiring road surface, and the gap filling material is TST material or rubber.
In this embodiment, in order to prevent rainwater infiltration expansion joint, be provided with the isolation layer 5 that splits that hinders that is located the telescoping device upside between expansion joint and the surface course.
In this embodiment, in order to meet the requirement of telescopic displacement of the guide plate, a sliding layer 4 is arranged between the guide plate, the wiring road surface and the sleeper beam. The sliding layer is made of polyethylene or fiber cloth.
The construction method suitable for the expansion joint structure of the seamless bridge approach plate comprises the following steps: (1) constructing the upper structure of the bridge; (2) excavating the soil behind the abutment; (3) laying a base layer 7 on the lower side of the guide plate; (4) constructing a sleeper beam 3 on a base layer, and arranging a sliding layer 4 on the upper surface of the sleeper beam; (5) placing one end of the guide plate 1 far away from the abutment and the wiring road surface 2 on the sleeper beam 3; (6) welding the connecting ribs of the main beam and the longitudinal ribs of the end, close to the abutment, of the guide plate into a whole so that the main beam and the guide plate are connected into a whole; (7) filling a gap filling material 11 on the lower surface side of the corrugated steel plate, putting the corrugated steel plate into an expansion joint between the leading plate and the wiring road surface, fixedly connecting straight plates at two ends of the corrugated steel plate 10 with the upper surfaces of the leading plate and the wiring road surface respectively by using bolts 12, and filling the gap filling material 11 on the upper surface side of the corrugated steel plate; (8) a crack-resistant isolating layer 5 is arranged on the upper side of the expansion joint, so that rainwater is prevented from permeating into the expansion joint; (9) and (5) paving a surface layer integrally to finish full-bridge construction.
The bridge without expansion joints is mainly characterized in that an integral abutment is adopted, the whole upper structure and a flexible pile foundation are integrally poured into a whole, and no expansion joint is used on the middle abutment and the 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.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (7)
1. The utility model provides a be applicable to seamless bridge guide plate expansion joint structure, includes that one end is placed guide plate and wiring road surface on the sleeper beam, its characterized in that, be provided with the expansion joint between guide plate and the wiring road surface, be provided with the telescoping device who is connected with guide plate and wiring road surface respectively in the expansion joint, the surface course has been laid to the upside that is located guide plate, wiring road surface and expansion joint.
2. The seam-expanding structure of the seamless bridge guide plate as claimed in claim 1, wherein the expansion device comprises a corrugated steel plate with two ends being flat plates and a concave-convex shape in the middle, the flat plates at the two ends of the corrugated steel plate are respectively arranged on the upper surfaces of the guide plate and the wiring road surface and are respectively connected with the guide plate and the wiring road surface through bolts, and the concave-convex shape in the middle of the corrugated steel plate is filled with a seam-filling material.
3. The seam-expanding construction of the seamless bridge guide plate according to claim 2, wherein the corrugated steel plate has a height corresponding to the height of the guide plate and the wiring road surface, and is disposed between the guide plate and the wiring road surface and on the upper side of the sleeper beam.
4. The seam-expanding construction suitable for the seamless bridge guide plate according to claim 2 or 3, wherein the upper end surface of the seam-filling material is flush with the guide plate and the wiring pavement, and the seam-filling material is TST material or rubber.
5. The expansion joint structure suitable for the seamless bridge approach plate according to the claim 1, 2 or 3, characterized in that a crack-resistant isolation layer is arranged between the expansion joint and the surface layer and is positioned at the upper side of the expansion device.
6. The seamless bridge guide plate expansion joint structure according to the claim 1, 2 or 3, characterized in that, a sliding layer is arranged between the guide plate and the connection road surface and the sleeper beam.
7. The seam expansion construction for the seamless bridge approach plate according to claim 6, wherein the sliding layer is polyethylene or fiber cloth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921798805.XU CN211228117U (en) | 2019-10-24 | 2019-10-24 | Be applicable to seamless bridge drawing plate expansion joint structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921798805.XU CN211228117U (en) | 2019-10-24 | 2019-10-24 | Be applicable to seamless bridge drawing plate expansion joint structure |
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| CN211228117U true CN211228117U (en) | 2020-08-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644360A (en) * | 2019-10-24 | 2020-01-03 | 福州大学 | Expansion joint structure suitable for seamless bridge approach plate and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644360A (en) * | 2019-10-24 | 2020-01-03 | 福州大学 | Expansion joint structure suitable for seamless bridge approach plate and construction method |
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