CN110616631A - Longitudinal connection structure suitable for main beam at bridge expansion joint and construction method - Google Patents
Longitudinal connection structure suitable for main beam at bridge expansion joint and construction method Download PDFInfo
- Publication number
- CN110616631A CN110616631A CN201911027529.1A CN201911027529A CN110616631A CN 110616631 A CN110616631 A CN 110616631A CN 201911027529 A CN201911027529 A CN 201911027529A CN 110616631 A CN110616631 A CN 110616631A
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- main beam
- bridge
- comb
- expansion joint
- steel plates
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a longitudinal girder connecting structure suitable for a bridge expansion joint, which comprises girders, concrete bridge deck plates and a telescopic device, wherein the concrete bridge deck plates are all positioned on the girders, the telescopic device comprises a plurality of corrugated steel sheets connected between the end parts of two sides of longitudinally adjacent girders, and the adjacent corrugated steel sheets are filled with elastic fillers. The displacement of a part of the upper structure of the bridge is absorbed by the corrugated steel sheets and the elastic filler, so that the adaptive deformation capacity of the bridge can be effectively enhanced, the stress condition at the expansion joint of the bridge is improved, and the longitudinal connection rigidity of a main beam at the expansion joint is improved; because the expansion device is positioned between the longitudinally adjacent main beams, the direct rolling of vehicles, the corrosion of rainwater and the like are avoided, the expansion device is better protected, the driving comfort is improved, the buckling deformation of the expansion joint can be effectively relieved, and the service life is prolonged; can adopt the construction of rapid Assembly formula, be connected two adjacent girders through the mode of bolt, easy operation, the engineering time is short.
Description
Technical Field
The invention relates to a longitudinal connection structure and a construction method suitable for a main beam at a bridge expansion joint.
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. The telescopic device directly bears the effects of vehicle load, environment and the like, is very easy to cause diseases and even lose efficacy, reduces the service quality of the bridge, and influences the safety and the durability of the bridge structure. The cost of maintaining and replacing the expansion device becomes an important component in bridge maintenance, and is increasing with the increase of the number of bridges and the increase of the service life. A large amount of research data shows that the telescopic device is the position where the bridge structure is most easily damaged and difficult to repair. According to incomplete statistics, more than 70% of highway bridges in China have the problems of bridge expansion device damage, vehicle jumping on bridges and at bridge heads and the like, and particularly the bridge joints on expressways are particularly serious. 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 the quality that improves telescoping device or reduce telescoping device's quantity or cancel the expansion joint. The quality of the expansion device 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 quality of the expansion device can only be used for treating 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. After the bridge deck expansion device at the bridge abutment is cancelled, the longitudinal bridge of the bridge structure is transferred to the abutment in the deformation direction, common diseases in the use process of the bridge are also transferred to the abutment in the soil filling direction by the expansion device at the bridge abutment, the connection position of the guide plate and the bridge, and the connection position of the guide plate and the wiring road. Therefore, the wire connecting portion also becomes a key structural portion of the seamless bridge.
The scheme is produced in order to enhance the adaptive deformation capacity of the bridge, improve the stress condition at the expansion joint of the bridge and improve the longitudinal connection rigidity of a main beam at the expansion joint.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the invention is to provide a longitudinal connection structure and a construction method suitable for a main girder at a bridge expansion joint.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a be applicable to bridge expansion joint department girder longitudinal connection structure, includes girder, concrete bridge deck board, telescoping device, and the concrete bridge deck board all is located on the girder, and the telescoping device includes a plurality of corrugated steel sheets of connecting between the tip of vertical adjacent girder both sides, fills through the elastic filler between the adjacent corrugated steel sheet.
Preferably, the corrugated steel sheet is in a concave-convex bent wave shape, and connecting steel sheets with bolt holes are fixedly arranged at two ends of the corrugated steel sheet.
Preferably, the end part of the girder installation telescopic device is embedded with a comb-shaped steel plate and a plurality of perforated steel plates, one end of each of the comb-shaped steel plate and the perforated steel plates is anchored inside the girder, and one end of each of the comb-shaped steel plates and the perforated steel plates is free to be suspended in a gap between every two adjacent girders in the longitudinal direction.
Preferably, the comb-tooth-shaped steel plates are horizontally anchored inside the main beam and transversely penetrate through the main beam, the outer edges of the comb-tooth-shaped steel plates are provided with meshing teeth, the perforated steel plates are vertically anchored inside the main beam and distributed along the width direction of the main beam, the comb-tooth-shaped steel plates between the two end parts of the two sides of the longitudinally adjacent main beam are meshed in a staggered mode, the perforated steel plates between the two end parts of the two sides of the longitudinally adjacent main beam correspond to one another one to one, and the bottom surfaces of the perforated steel plates.
Preferably, the corrugated steel sheets are respectively installed between the steel plates with holes in one-to-one correspondence, and are locked and positioned by bolts and nuts penetrating through the steel plates with holes and bolt holes in the connecting steel sheets.
Preferably, the upper side of the corrugated steel sheet is flush with the concrete bridge deck, and the lower side of the corrugated steel sheet is parallel to and positioned on the comb-tooth-shaped steel plate.
Preferably, the elastic filler is arranged between adjacent corrugated steel sheets on the comb-tooth-shaped steel plate, the upper part of the elastic filler is flush with the concrete bridge deck plate, and the elastic filler is made of TST materials or rubber.
Preferably, the number of the corrugated steel sheets is 3 ~ 4 sheets.
A construction method suitable for a longitudinal connection structure of a main beam at a bridge expansion joint is carried out according to the following steps: (1) prefabricating a main beam according to the requirements of design drawings, manufacturing a corrugated steel sheet, a comb-shaped steel plate and a steel plate with holes, and embedding and anchoring the comb-shaped steel plate and the steel plate with holes in the corresponding position of the main beam; (2) transporting the prefabricated main beam to a construction site, fixing the main beam on a support, and taking care of the staggered occlusion of the comb-shaped steel plates connected to two adjacent beam ends respectively; (3) fixedly connecting the corrugated steel sheet with the steel plate with the holes by using bolts; (4) laying a template on the main beam, pouring a concrete bridge deck, maintaining, and removing the template after the strength of the concrete bridge deck meets the standard requirement; (5) elastic materials are filled between the corrugated steel sheets and are arranged on the comb-shaped steel plates; (6) and paving the bridge floor to finish the full-bridge construction.
Compared with the prior art, the invention has the following beneficial effects: the displacement of a part of the upper structure of the bridge is absorbed by the corrugated steel sheets and the elastic filler, so that the adaptive deformation capacity of the bridge can be effectively enhanced, the stress condition at the expansion joint of the bridge is improved, and the longitudinal connection rigidity of a main beam at the expansion joint is improved; because the expansion device is positioned between the longitudinally adjacent main beams, the direct rolling of vehicles, the corrosion of rainwater and the like are avoided, the expansion device is better protected, the driving comfort is improved, the buckling deformation of the expansion joint can be effectively relieved, and the service life is prolonged; can adopt the construction of rapid Assembly formula, be connected two adjacent girders through the mode of bolt, easy operation, the engineering time is short.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is an elevation view of a longitudinal connection configuration of a main beam.
FIG. 2 is a vertical view of the comb-shaped steel plate and the perforated steel plate in FIG. 1.
FIG. 3 is a top plan view of a longitudinal attachment configuration of the main beam.
FIG. 4 is a structural view of a corrugated steel sheet.
Fig. 5 is a structural view of adjacent comb-shaped steel plates.
Detailed Description
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in FIG. 1 ~ 5, a longitudinal girder connection structure suitable for bridge expansion joints comprises a girder 2, a concrete deck slab 1 and a telescopic device, wherein the concrete deck slab is positioned on the girder, the telescopic device comprises a plurality of corrugated steel sheets 7 connected between two ends of longitudinally adjacent girders, and the adjacent corrugated steel sheets are filled with elastic fillers 8, and the corrugated steel sheets have good contraction deformation capacity, so that the capacity of the expansion joints for absorbing the expansion displacement of the girder can be improved, and the capacity of the bridge for adapting to deformation can be better improved.
In the embodiment of the invention, the corrugated steel sheets are all in a concave-convex bent wavy shape, and the two ends of each corrugated steel sheet are fixedly provided with connecting steel sheets 10 with bolt holes.
In the embodiment of the invention, comb-shaped steel plates 4 and a plurality of perforated steel plates 5 are embedded at the end parts of the main beam mounting expansion devices, one ends of the comb-shaped steel plates and the perforated steel plates are anchored in the main beam, and one ends of the comb-shaped steel plates and the perforated steel plates are freely cantilevered in the gap of the longitudinally adjacent main beams.
In the embodiment of the invention, the comb-shaped steel plates are horizontally anchored in the main beam and cross the main beam, the outer edges of the comb-shaped steel plates are provided with the engaging teeth 11, the perforated steel plates are vertically anchored in the main beam and distributed along the width direction of the main beam, the comb-shaped steel plates between two side ends of the longitudinally adjacent main beams are engaged in a staggered manner, the perforated steel plates between two side ends of the longitudinally adjacent main beams are in one-to-one correspondence, and the bottom surfaces of the perforated steel plates are connected with the top surfaces of the comb-shaped steel plates.
In the embodiment of the invention, the corrugated steel sheets are respectively arranged between the steel plates with holes which correspond to each other one by one and are locked and positioned by bolts 9 and nuts which penetrate through the steel plates with holes and bolt holes in the connecting steel sheets.
In the embodiment of the invention, the upper side of the corrugated steel sheet is flush with the concrete bridge deck, and the lower side of the corrugated steel sheet is parallel to and positioned on the comb-shaped steel sheet.
In the embodiment of the invention, the elastic filler is arranged between the adjacent corrugated steel sheets on the comb-shaped steel plate, the upper part of the elastic filler is flush with the concrete bridge deck plate, and the elastic filler is made of TST (thermal shock test) materials or rubber and the like.
In the embodiment of the present invention, the number of the corrugated steel sheets is 3 ~ 4 sheets.
A construction method suitable for a longitudinal connection structure of a main beam at a bridge expansion joint is carried out according to the following steps: (1) prefabricating a main beam according to the requirements of design drawings, manufacturing a corrugated steel sheet, a comb-shaped steel plate and a steel plate with holes, and embedding and anchoring the comb-shaped steel plate and the steel plate with holes in the corresponding position of the main beam; (2) transporting the prefabricated main beam to a construction site, fixing the main beam on a support 6 of the pier 3, and taking care of the staggered occlusion of the comb-shaped steel plates connected to two adjacent beam ends respectively; (3) fixedly connecting the corrugated steel sheet with the steel plate with the holes by using bolts; (4) laying a template on the main beam, pouring a concrete bridge deck, maintaining, and removing the template after the strength of the concrete bridge deck meets the standard requirement; (5) elastic materials are filled between the corrugated steel sheets and are arranged on the comb-shaped steel plates; (6) and paving the bridge floor to finish the full-bridge construction. The telescopic device can also be applied to integral or semi-integral seamless bridges with large longitudinal deformation, such as sleeper beams of a seamless bridge line system, and is used for relieving longitudinal pressure caused by restrained expansion of a rigid pavement.
The invention is not limited to the above best mode, and any person can obtain other longitudinal connection structures and construction methods suitable for the main beam at the bridge expansion joint in various forms according to the teaching of the invention. All equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (9)
1. The utility model provides a be applicable to bridge expansion joint department girder longitudinal connection structure which characterized in that: the concrete bridge deck is arranged on the main beam, the telescopic device comprises a plurality of corrugated steel sheets connected between the end parts of two sides of the longitudinal adjacent main beam, and the adjacent corrugated steel sheets are filled with elastic fillers.
2. The longitudinal connection structure of the main beam at the bridge expansion joint as claimed in claim 1, wherein: the shape of the corrugated steel sheet is corrugated, and the two ends of the corrugated steel sheet are fixedly provided with connecting steel sheets with bolt holes.
3. The longitudinal connection structure of the girder applied to the bridge expansion joint as claimed in claim 2, wherein: comb-shaped steel plates and a plurality of perforated steel plates are embedded at the end parts of the girder mounting expansion devices, one ends of the comb-shaped steel plates and the perforated steel plates are anchored inside the girders, and one ends of the comb-shaped steel plates and the perforated steel plates are free to be cantilevered in gaps of longitudinally adjacent girders.
4. The longitudinal connection structure of the main beam at the bridge expansion joint as claimed in claim 3, wherein: the comb-tooth-shaped steel plates are horizontally anchored inside the main beam and transversely penetrate through the main beam, the outer edges of the comb-tooth-shaped steel plates are provided with occlusion teeth, the perforated steel plates are vertically anchored inside the main beam and distributed along the width direction of the main beam, the comb-tooth-shaped steel plates between the two end parts of the longitudinal adjacent main beam are occluded in a staggered mode, the perforated steel plates between the two end parts of the longitudinal adjacent main beam are in one-to-one correspondence, and the bottom surfaces of the perforated steel plates are connected with the top surfaces.
5. The longitudinal connection structure of the main beam at the bridge expansion joint as claimed in claim 4, wherein: the corrugated steel sheets are respectively arranged between the steel plates with holes which are in one-to-one correspondence, and are locked and positioned by bolts and nuts which penetrate through the steel plates with holes and bolt holes in the connecting steel sheets.
6. The longitudinal connection structure of the main beam at the bridge expansion joint as claimed in claim 5, wherein: the upper side of the corrugated steel sheet is flush with the concrete bridge deck, and the lower side of the corrugated steel sheet is parallel to the comb-shaped steel plate and is positioned on the comb-shaped steel plate.
7. The longitudinal connection structure of the main beam at the bridge expansion joint as claimed in claim 5, wherein: the elastic filler is arranged between adjacent corrugated steel sheets on the comb-tooth-shaped steel plates, the upper part of the elastic filler is flush with the concrete bridge deck plate, and the elastic filler is made of TST materials or rubber.
8. The longitudinal connection structure of the main beam at the expansion joint of the bridge as claimed in claim 1, wherein the number of the corrugated steel sheets is 3 ~ 4.
9. A construction method suitable for a longitudinal connection structure of a main beam at a bridge expansion joint according to any one of claims 1 to 8, comprising the following steps: (1) prefabricating a main beam according to the requirements of design drawings, manufacturing a corrugated steel sheet, a comb-shaped steel plate and a steel plate with holes, and embedding and anchoring the comb-shaped steel plate and the steel plate with holes in the corresponding position of the main beam; (2) transporting the prefabricated main beam to a construction site, fixing the main beam on a support, and taking care of the staggered occlusion of the comb-shaped steel plates connected to two adjacent beam ends respectively; (3) fixedly connecting the corrugated steel sheet with the steel plate with the holes by using bolts; (4) laying a template on the main beam, pouring a concrete bridge deck, maintaining, and removing the template after the strength of the concrete bridge deck meets the standard requirement; (5) elastic materials are filled between the corrugated steel sheets and are arranged on the comb-shaped steel plates; (6) and paving the bridge floor to finish the full-bridge construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027529.1A CN110616631A (en) | 2019-10-28 | 2019-10-28 | Longitudinal connection structure suitable for main beam at bridge expansion joint and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027529.1A CN110616631A (en) | 2019-10-28 | 2019-10-28 | Longitudinal connection structure suitable for main beam at bridge expansion joint and construction method |
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| CN110616631A true CN110616631A (en) | 2019-12-27 |
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| CN201911027529.1A Pending CN110616631A (en) | 2019-10-28 | 2019-10-28 | Longitudinal connection structure suitable for main beam at bridge expansion joint and construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395168A (en) * | 2020-03-13 | 2020-07-10 | 中铁六局集团广州工程有限公司 | Continuous rigid frame separation type 0# block temporary filling device and construction method |
| CN111395167A (en) * | 2020-03-13 | 2020-07-10 | 中铁六局集团广州工程有限公司 | Construction method of continuous rigid frame bridge |
| CN111851268A (en) * | 2020-08-19 | 2020-10-30 | 福州大学 | Corrugated steel leader plate structure capable of absorbing horizontal deformation in full-seamless bridge and method |
| CN114561869A (en) * | 2022-03-16 | 2022-05-31 | 湖北楚天联发路桥养护有限公司 | Fold line type asynchronous double-prevention expansion joint device |
| CN117127483A (en) * | 2023-11-02 | 2023-11-28 | 江苏水工建设集团有限公司 | Modularized construction bridge structure and construction process |
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| CN108035245A (en) * | 2017-12-26 | 2018-05-15 | 福州大学 | Novel fabricated seamless expansion-contraction devices and its construction method |
| CN109024262A (en) * | 2018-10-16 | 2018-12-18 | 长安大学 | A kind of modulus type seamless expansion-contraction devices and its construction method |
| CN109457603A (en) * | 2018-12-29 | 2019-03-12 | 贵州大学 | Railroad bridge Fast Installation expansion joint |
| CN211200056U (en) * | 2019-10-28 | 2020-08-07 | 福州大学 | Longitudinal connection structure suitable for girder at bridge expansion joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395168A (en) * | 2020-03-13 | 2020-07-10 | 中铁六局集团广州工程有限公司 | Continuous rigid frame separation type 0# block temporary filling device and construction method |
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| CN111395168B (en) * | 2020-03-13 | 2021-12-03 | 中铁六局集团广州工程有限公司 | Continuous rigid frame separation type 0# block temporary filling device and construction method |
| CN111851268A (en) * | 2020-08-19 | 2020-10-30 | 福州大学 | Corrugated steel leader plate structure capable of absorbing horizontal deformation in full-seamless bridge and method |
| CN114561869A (en) * | 2022-03-16 | 2022-05-31 | 湖北楚天联发路桥养护有限公司 | Fold line type asynchronous double-prevention expansion joint device |
| CN117127483A (en) * | 2023-11-02 | 2023-11-28 | 江苏水工建设集团有限公司 | Modularized construction bridge structure and construction process |
| CN117127483B (en) * | 2023-11-02 | 2024-06-04 | 江苏水工建设集团有限公司 | Modularized construction bridge structure and construction process |
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