CN211571382U

CN211571382U - Road bridge expansion joint structure

Info

Publication number: CN211571382U
Application number: CN201922499906.3U
Authority: CN
Inventors: 靳晓瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-25
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a road bridge expansion joint structure, which comprises a left bridge and a right bridge, wherein a gap is arranged between the left bridge and the right bridge, a first notch and a second notch are respectively arranged at the joints of the left bridge and the right bridge and the gap, and supporting plates are arranged in the first notch and the second notch; the arc-shaped damping plate is arranged between the left bridge and the right bridge, and plays a role in buffering and protecting the bridge, so that the bridge is prevented from being pressed too much in a short time to cause cracks; meanwhile, in the expansion process of the expansion joint, the rubber block expands and contracts along with the expansion joint, and the rubber block can eliminate the horizontal relative displacement of the left bridge and the right bridge; install the drainage groove through between strengthening rib and the left bridge, the drainage groove carries out the drainage with the rainwater that the broach up end infiltration got off, prevents that rainwater and arc shock attenuation board contact and lead to arc shock attenuation board to be corroded, has improved this bridge expansion joint structure's security.

Description

Road bridge expansion joint structure

Technical Field

The utility model relates to a road bridge expansion joint technical field, specific theory especially relates to a road bridge expansion joint structure.

Background

The bridge expansion joint is a device arranged in a gap formed between two adjacent beam bodies in order to meet the requirement of bridge deck deformation, the beam bodies can be main beam sections and can also be bridge platforms connected with the main beams, the bridge expansion joint is required to be freely telescopic, firm and reliable in both the length direction and the width direction of the bridge, when a vehicle runs, the bridge expansion joint is smooth and free of sudden jump and noise, rainwater and garbage soil can be prevented from permeating and blocking, therefore, the bridge expansion joint plays an important role in the telescopic performance, the waterproof performance, the drainage performance and the like of the end part of the beam body, the quality and the performance of the bridge expansion joint directly influence the durability of the whole bridge, and the highway bridge expansion joint is a structure reserved specially when a highway bridge is built and mainly prevents factors such as temperature change from influencing the safety of the highway bridge.

The existing comb-tooth-shaped expansion joint has good expansion effect and is widely applied, but the comb-tooth-shaped expansion joint has low drainage efficiency, and on the other hand, along with the increase of the bridge age, due to the effects of natural factors such as environment, climate and the like, the increasing traffic volume, the increasing number of passing bridges of heavy vehicles and overweight vehicles, artificial accidents and other factors, the probability of the expansion joint being damaged is larger. Once the expansion joint is damaged, a passerby feels uncomfortable and lacks the sense of safety, and the impact of a vehicle on an upper structural part caused by the damage of the expansion joint deteriorates the driving condition, influences the stress of a main structure of the bridge, reduces the service life of the bridge, and needs to be repaired or completely replaced at the moment, otherwise, the expansion joint seriously influences normal traffic, causes economic loss and adverse effect of different degrees, and even endangers the safety of the bridge; and current public road bridge expansion joint shock attenuation effect is not enough, is blockked up or the infiltration by debris easily in the expansion joint moreover, is not convenient for the workman to clear up.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a road bridge expansion joint structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a road bridge expansion joint structure, wherein, includes left bridge and right bridge, has the gap between left bridge and the right bridge, and left bridge and right bridge have notch one and notch two with the gap linking department respectively, place the backup pad in notch one and the notch two, notch one bottom be close to notch one lateral part position and notch two bottoms and be close to two side positions of notch and be fixed with rubber block one respectively, the bottom that notch one and notch two were kept away from to rubber block one is fixed with rubber block two respectively, be equipped with the strengthening rib between rubber block one and the rubber block two, be equipped with arc shock attenuation board between the left bridge of backup pad bottom and the right bridge, arc shock attenuation board and bridge junction are equipped with the base.

Preferably, be equipped with a plurality of right broach one and left broach one that misplace each other and form mortise-tenon structure on left side bridge and the backup pad left side respectively, be equipped with a plurality of left broach two and right broach two that misplace each other and form mortise-tenon structure on right side bridge and the backup pad right side respectively, left side broach one and backup pad junction and right broach two are fixed with the strengthening rib respectively with the bottom of backup pad junction.

Preferably, flumes are respectively fixed between the reinforcing rib and the left bridge and between the reinforcing rib and the right bridge, and the flumes are positioned at the top of the rubber block I.

Preferably, the base is fixed on the bridge, and the arc-shaped damping plate is fixed on the base.

Preferably, the left comb tooth I and the right comb tooth II are integrated with the support plate.

Has the advantages that: compared with the prior art, the beneficial effects of the utility model are that:

the strength of the joint of the support plate and the comb teeth can be improved by arranging the reinforcing ribs, and the comb teeth are prevented from being pressed and deformed when a vehicle passes through the left comb teeth I and the right comb teeth II; the arc-shaped damping plate is arranged between the left bridge and the right bridge, and plays a role in buffering and protecting the bridge, so that the bridge is prevented from being pressed too much in a short time to cause cracks; meanwhile, in the expansion process of the expansion joint, the rubber block expands and contracts along with the expansion joint, and the rubber block can eliminate the horizontal relative displacement of the left bridge and the right bridge; install the drainage groove through between strengthening rib and the left bridge, the drainage groove carries out the drainage with the rainwater that the broach up end infiltration got off, prevents that rainwater and arc shock attenuation board contact and lead to arc shock attenuation board to be corroded, has improved this bridge expansion joint structure's security.

Drawings

Fig. 1 is the utility model provides a road bridge expansion joint structure's schematic structural diagram.

Fig. 2 is the utility model provides a top view of road bridge expansion joint structure.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Examples

Referring to fig. 1-2, in an embodiment of the present invention, a road bridge expansion joint structure includes a left bridge beam 1 and a right bridge beam 2, a gap is formed between the left bridge beam 1 and the right bridge beam 2, and the joint of the left bridge beam 1 and the right bridge beam 2 with the gap is provided with a first notch 3 and a second notch 4 respectively, a support plate 5 is arranged in the first notch 3 and the second notch 4, a first rubber block 6 is respectively fixed at the position of the bottom of the first notch 3, which is close to the side part of the first notch 3, and at the position of the bottom of the second notch 4, which is close to the side part of the second notch 4, a second rubber block 7 is respectively fixed at the bottom of the first rubber block 6 far away from the first notch 3 and the second notch 4, be equipped with strengthening rib 8 between rubber block 6 and the rubber block two 7, be equipped with arc shock attenuation board 9 between the left bridge 1 of 5 bottoms in backup pad and the right bridge 2, arc shock attenuation board 9 is equipped with base 10 with the bridge junction.

Further, be equipped with a plurality of right broach 101 and left broach 501 that misplace each other and form tenon fourth of twelve earthly branches structure on left side bridge 1 and backup pad 5 left side respectively, be equipped with a plurality of left broach two 201 and right broach two 502 that misplace each other and form tenon fourth of twelve earthly branches structure on right side bridge 2 and backup pad 5 right side respectively, the bottom of left broach 501 and backup pad 5 junction and right broach two 502 and backup pad 5 junction is fixed with strengthening rib 8 respectively.

Further, a water flowing groove 11 is respectively fixed between the reinforcing rib 8 and the left bridge beam 1 and between the reinforcing rib 8 and the right bridge beam 1, and the water flowing groove 11 is located at the top of the first rubber block 6.

Further, the base 10 is fixed on the bridge, and the arc-shaped damping plate 9 is fixed on the base 10.

Furthermore, the first left comb 501 and the second right comb 502 are integrated with the support plate 5.

The utility model can improve the strength of the joint of the supporting plate 5 and the comb teeth by arranging the reinforcing ribs 8, and prevent the comb teeth from being pressed and deformed when a vehicle passes through the left comb teeth I501 and the right comb teeth II 502; the arc-shaped damping plate 9 is arranged between the left bridge beam 1 and the right bridge beam 2, and the arc-shaped damping plate 9 plays a role in buffering and protecting the bridge beams, so that the bridge beams are prevented from being pressed too much in a short time to cause cracks; meanwhile, in the expansion process of the expansion joint, the rubber block expands and contracts along with the expansion joint, and the rubber block can eliminate the horizontal relative displacement of the left bridge 1 and the right bridge 2; install drainage groove 11 through between strengthening rib 6 and the left bridge 1, drainage groove 11 carries out the drainage with the rainwater that the broach up end infiltration got off, prevents that rainwater and the contact of arc shock attenuation board 9 and lead to arc shock attenuation board 9 to be corroded, has improved the security of this bridge expansion joint structure.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a road bridge expansion joint structure which characterized in that: including left bridge and right bridge, have the gap between left side bridge and the right bridge, and left side bridge and right bridge have notch one and notch two with the gap linking department respectively, have placed the backup pad in notch one and the notch two, notch one bottom be close to notch lateral part position and notch two bottoms and be close to two side positions of notch and be fixed with rubber block one respectively, the bottom that notch one and notch two were kept away from to rubber block one is fixed with rubber block two respectively, be equipped with the strengthening rib between rubber block one and the rubber block two, be equipped with arc shock attenuation board between the left bridge of backup pad bottom and the right bridge, arc shock attenuation board and bridge connection department are equipped with the base.

2. The road and bridge expansion joint structure of claim 1, wherein: the left side bridge is equipped with a plurality of right broach one and left broach one that misplace each other and form tenon fourth of twelve earthly branches structure on and the backup pad left side respectively, be equipped with a plurality of left broach two and right broach two that misplace each other and form tenon fourth of twelve earthly branches structure on right side bridge and the backup pad right side respectively, left side broach one is fixed with the strengthening rib respectively with the bottom of backup pad junction and right broach two and backup pad junction.

3. The road bridge expansion joint structure of claim 2, wherein: and water flowing grooves are respectively fixed between the reinforcing ribs and the left bridge and between the reinforcing ribs and the right bridge and are positioned at the top of the rubber block I.

4. The road and bridge expansion joint structure of claim 1, wherein: the base is fixed on the bridge, and the arc shock attenuation board is fixed on the base.

5. The road bridge expansion joint structure of claim 2, wherein: the left comb tooth I and the right comb tooth II are integrated with the support plate.