CN213038190U

CN213038190U - Public road bridge roof beam expansion joint

Info

Publication number: CN213038190U
Application number: CN202021333363.4U
Authority: CN
Inventors: 胡敏; 贾文渊; 张建雄
Original assignee: Cccc Highway Maintenance Engineering Technology Co ltd
Current assignee: Cccc Highway Maintenance Engineering Technology Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-04-23
Anticipated expiration: 2030-07-08

Abstract

The utility model discloses a public road bridge roof beam expansion joint, the right-hand member of bridge floor spandrel girder one and the left end of bridge floor spandrel girder two use the expansion joint to be provided with location base face one respectively and be located location base face two of location base face one below as the symmetry axis, the lower surface of location base face one and the upper surface of location base face two establish the slider and be parallel to each other crisscross connecting plate fixed connection through inlaying, the both ends of connecting plate are provided with expanding spring, expanding spring's the other end sets firmly respectively on the roof beam wall of bridge floor spandrel girder one right-hand member and two left ends of bridge floor spandrel girder through the link, the displacement control buffer has set firmly on the opposite side terminal surface for a bridge floor spandrel girder. The utility model has the advantages that: the bridge expansion main body is symmetrically and fixedly arranged between the two bridge deck bearing beams, and the bridge deck bearing beams can be displaced through the expansion structure arranged on the bridge expansion main body after being subjected to external force, so that the bridge deck can be deformed when being heated or cooled, and the bridge deck can not be fractured.

Description

Public road bridge roof beam expansion joint

Technical Field

The utility model relates to a bridge construction technical field particularly, relates to a public road bridge roof beam expansion joint.

Background

The bridge expansion joint is a device arranged in a gap formed between two adjacent beam bodies 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 freely stretch in the length direction and the width direction of the bridge, the bridge expansion joint is firm and reliable, 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 stretching, water proofing, drainage and the like of the end part of the beam body, the expansion joint is arranged at the weak structural part of the beam end and the like, the expansion joint directly bears repeated dynamic load and impact action of the vehicle, and also bears fatigue, abrasion, chemical and physical erosion, and concrete around the expansion joint is easy to damage under frequent impact action under various comprehensive actions, so that the expansion joint deforms and deforms, Destroy, make the driving travelling comfort reduce, the noise increase, and the rainwater can also pass through the expansion joint infiltration roof beam body, crisis bridge and driving safety, the main reason of traditional method infiltration is that the expansion joint has corresponding mechanical change under the different difference in temperature, winter, summer all has certain flexible deformation so form different clearances and cause the seepage, mainly take place at bridge substructure, the infiltration leads to reinforcing bar corrosion effect, make the pontic fracture, and then increased the invasion of water and corrosive medium, vicious circle has been caused, will influence the safety of bridge at last, the bridge expansion joint construction technology after the improvement can solve infiltration and fall the problem of making an uproar simultaneously, very big improvement vehicle drives the comfort level of time and prolongs the life of bridge.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem among the correlation technique, the utility model provides a highway bridge expansion joint can solve and cause the seepage because of the expansion joint deformation that seasonal variation arouses in long-term use to and the bridge floor infiltration leads to reinforcing bar corrosion to make the pontic fracture, influences bridge safe in utilization's technical problem.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows: the utility model provides a highway bridge expansion joint, includes bridge floor spandrel girder one and bridge floor spandrel girder two, its characterized in that, the right-hand member of bridge floor spandrel girder one with the left end of bridge floor spandrel girder two uses the expansion joint to be provided with location base face one respectively and is located location base face two of location base face below, the lower surface of location base face one with the upper surface of location base face two is through inlaying and establishing slider and the crisscross connecting plate fixed connection that is parallel to each other, the both ends of connecting plate are provided with expanding spring, expanding spring's the other end set firmly respectively in bridge floor spandrel girder one right-hand member reaches on the roof beam wall of two left ends of bridge floor spandrel girder, for a bridge floor spandrel girder right-hand member reaches the displacement control buffer has set firmly on the other side terminal surface of two.

Furthermore, threaded holes are formed in the two ends of the first bridge deck bearing beam and the two ends of the second bridge deck bearing beam, and the connecting frame is fixed to the first bridge deck bearing beam and the second bridge deck bearing beam through the threaded holes and nuts.

Furthermore, the first positioning base surface and the second positioning base surface are equal in length and are formed by pouring concrete.

Further, the connecting plate is made of steel materials.

Furthermore, the connecting plate and the telescopic spring are horizontally arranged with the connecting frame.

Furthermore, the telescopic spring is embedded in the connecting frame.

Furthermore, the displacement control buffer is fixedly connected with the end heads of the first bridge deck bearing beam and the second bridge deck bearing beam.

The utility model has the advantages that: in view of the problem that exists among the above-mentioned prior art, this application symmetry has set firmly the flexible main part of bridge between two bridge deck spandrel girders, but the extending structure who sets up through the flexible main part of bridge can carry out the displacement after the bridge deck spandrel girder receives external force, thereby the bridge deck fracture phenomenon can not take place for effectual messenger's bridge is heated or produces deformation when cold, and bridge deck spandrel girder both ends set up the displacement control buffer, the displacement control buffer can make the spandrel girder slowly and even displacement that carries out when the bridge deck spandrel girder carries out the displacement, be favorable to protecting the bridge can not fracture or ftracture.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a novel highway bridge expansion joint according to an embodiment of the present invention;

in the figure: 1. a first bridge deck bearing beam; 2. a bridge deck bearing beam II; 3. an expansion joint; 4. positioning a first base surface; 5. positioning a second base surface; 6. a connecting plate 7 and a telescopic spring; 8. a connecting frame; 9. a displacement control buffer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

As shown in figure 1, the highway bridge expansion joint according to the embodiment of the utility model comprises a first bridge deck bearing beam 1 and a second bridge deck bearing beam 2, it is characterized in that the right end of the first bridge deck bearing beam 1 and the left end of the second bridge deck bearing beam 2 are respectively provided with a first positioning base surface 4 and a second positioning base surface 5 positioned below the first positioning base surface 4 by taking the expansion joint 3 as a symmetrical axis, the lower surface of the first positioning base surface 4 and the upper surface of the second positioning base surface 5 are fixedly connected with mutually parallel and staggered connecting plates 6 through embedded sliding blocks, and two ends of the connecting plate 6 are provided with telescopic springs 7, the other ends of the telescopic springs 7 are fixedly arranged on the beam walls at the right end of the first bridge deck bearing beam 1 and the left end of the second bridge deck bearing beam 2 through connecting frames 8 respectively, and displacement control buffers 10 are fixedly arranged on the end faces, opposite to the right end of the first bridge deck bearing beam 1 and the other end of the left end of the second bridge deck bearing beam 2.

In an embodiment of the present invention, threaded holes are disposed at both ends of the first bridge deck bearing beam 1 and the second bridge deck bearing beam 2, and the connecting frame 8 is fixed on the first bridge deck bearing beam 1 and the second bridge deck bearing beam 2 through threaded holes and nuts.

In a specific embodiment of the utility model, the location base face one 4 with the length of location base face two 5 equals, and is formed by concrete placement, location base face one 4 lower surfaces with location base face two 5 upper surfaces through embedded slider with crisscross setting mutually parallel 6 fixed connection of connecting plate for avoid the bridge to be heated or produce deformation when receiving the cold, and the emergence of phenomenon of rupture.

In an embodiment of the present invention, the connecting plate 6 is made of steel material, the connecting plate 6 and the expansion spring 7 are horizontally disposed with the connecting frame 8, and the expansion spring 7 is embedded in the connecting frame 8 for the bridge deck to be deformed when the bridge is heated or cooled.

In an embodiment of the present invention, the displacement control buffer 10 is fixedly connected to the first bridge deck bearing beam 1 and the second bridge deck bearing beam 2 for slowly moving at a uniform speed to effectively improve the fracture of the bridge deck.

For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.

When the highway bridge expansion joint is used in detail, according to the utility model, in the using process, a first locating base surface 4 and a second locating base surface 5 positioned below the first locating base surface 4 are respectively arranged between the first bridge surface bearing beam 1 and the second bridge surface bearing beam 2 by taking the expansion joint 3 as a symmetry axis, the lower surface of the first locating base surface 4 and the upper surface of the second locating base surface 5 are fixedly connected with a connecting plate 6 which is parallel and staggered with each other through embedding a sliding block, two ends of the connecting plate 6 are provided with expansion springs 7, the other ends of the expansion springs 7 are respectively and fixedly arranged on the right end of the first bridge surface bearing beam 1 and the beam wall at the left end of the second bridge surface bearing beam 2 through connecting frames 8, and can displace when the first bridge surface bearing beam 1 and the second bridge surface bearing beam 2 are subjected to external force, thereby effectively enabling the bridge to deform when being heated or cooled, the bridge has the advantages that the phenomenon of fracture cannot occur, the displacement control buffers 10 are arranged at the two ends of the first bridge deck bearing beam 1 and the second bridge deck bearing beam 2, and the displacement control buffers 10 can slowly and uniformly displace when the first bridge deck bearing beam 1 and the second bridge deck bearing beam 2 displace, so that the bridge is effectively protected, and the bridge cannot fracture or crack.

To sum up, with the help of the utility model discloses an above-mentioned technical scheme has set firmly the flexible main part of bridge through the symmetry between two bridge floor spandrel girders, but the extending structure who sets up through the flexible main part of bridge can carry out the displacement after the bridge floor spandrel girder receives external force to effectual messenger's bridge is heated or produces when cold and warp and can not take place bridge floor fracture phenomenon, and bridge floor spandrel girder both ends set up the displacement control buffer, the displacement control buffer can make the spandrel girder slowly and even carry out the displacement when the bridge floor spandrel girder carries out the displacement, be favorable to protecting the bridge can not fracture or fracture.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a highway bridge expansion joint, includes bridge floor spandrel girder one (1) and two (2) of bridge floor spandrel girder, its characterized in that, the right-hand member of bridge floor spandrel girder one (1) with the left end of two (2) of bridge floor spandrel girder uses expansion joint (3) to be provided with location base face one (4) respectively and be located location base face two (5) of first (4) below, the lower surface of location base face one (4) reaches the upper surface of location base face two (5) establishes slider and crisscross connecting plate (6) fixed connection that is parallel to each other through inlaying, the both ends of connecting plate (6) are provided with expanding spring (7), the other end of expanding spring (7) set firmly respectively in bridge floor spandrel girder one (1) right-hand member and on the roof beam wall of two (2) left ends of bridge floor spandrel girder, for on the bridge floor spandrel girder one (1) right-hand member reaches the other side end face of two (2) left ends of bridge A displacement control buffer (10) is fixedly arranged.

2. The highway bridge expansion joint of claim 1, wherein both ends of the first bridge deck bearing beam (1) and the second bridge deck bearing beam (2) are provided with threaded holes, and the connecting frame (8) is fixed on the first bridge deck bearing beam (1) and the second bridge deck bearing beam (2) through the threaded holes and nuts.

3. The road bridge expansion joint according to claim 1, wherein the first positioning base surface (4) and the second positioning base surface (5) are equal in length and are formed by pouring concrete.

4. A road bridge expansion joint according to claim 1, characterised in that the connection plate (6) is made of steel material.

5. The expansion joint for road bridges according to claim 1, wherein the connection plate (6) and the expansion spring (7) are arranged horizontally with the connection frame (8).

6. The expansion joint for road bridges according to claim 1, wherein the expansion spring (7) is embedded in the connection frame (8).

7. The road bridge expansion joint of claim 1, wherein the displacement control bumper (10) is fixedly connected to the ends of the first bridge deck bearing beam (1) and the second bridge deck bearing beam (2).