CN215714595U

CN215714595U - Bridge telescoping device and bridge

Info

Publication number: CN215714595U
Application number: CN202121281783.7U
Authority: CN
Inventors: 孙加超
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-02-01
Anticipated expiration: 2031-06-09

Abstract

The utility model relates to a bridge expansion device, which comprises two boundary beams, wherein each boundary beam comprises a boundary beam body and a plurality of supporting plates extending out of the adjacent joint end of the boundary beam body, the supporting plates on each boundary beam body are distributed at intervals from top to bottom, the supporting plates on the two boundary beam bodies are arranged in a staggered mode in the vertical direction, the projection parts of the two adjacent supporting plates on the horizontal plane are overlapped, and a horizontal distance is reserved between each supporting plate and the boundary beam body on the opposite side. Still relate to a bridge in addition, adopt this bridge telescoping device. The expansion joint has the advantages that the basic requirements of the expansion joint are met, the labyrinth effect is presented between the support plates, the concentration of sundries in the expansion joint can be reduced, the sundries can be crushed due to the vertical movement between two adjacent support plates, the operation reliability of the expansion joint can be improved, the condition of water accumulation and the like in the expansion joint cannot be formed, even if water enters the expansion joint, the sundries on the surfaces of the support plates can be taken away due to the flow of water on the surfaces of the support plates, and the operation reliability of the expansion joint is further improved.

Description

Bridge telescoping device and bridge

Technical Field

The utility model relates to a bridge expansion device and a bridge adopting the same.

Background

The comb-tooth type bridge expansion joint is widely applied to new and old bridge engineering with superiority, but still has some problems in the using process:

(1) the anchoring concrete is cracked, the anchoring bolt is corroded and seriously damaged and falls off, and the anchoring part is cracked due to fatigue;

(2) the comb plate is deformed or tilted, uneven, the transverse clearance of the comb plate is uneven, the teeth are blocked, the comb plate is broken, and the whole comb plate falls off;

(3) the comb teeth are inflexible to rotate, so that the toothed plate is tilted, and the automobile jumps due to huge noise generated when the automobile runs at high speed, thereby threatening the driving safety;

(4) the steel part is corroded due to water accumulation or water leakage in the waterproof rubber strip, and sundries in the waterproof rubber strip are not easy to clear and lose the telescopic function.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a bridge expansion device and a bridge adopting the same, which can at least solve part of defects in the prior art.

The utility model relates to a bridge expansion device, which comprises two boundary beams, wherein each boundary beam comprises a boundary beam body and a plurality of supporting plates extending out of the adjacent joint end of the boundary beam body, the supporting plates on each boundary beam body are distributed at intervals from top to bottom, the supporting plates on the two boundary beam bodies are arranged in a staggered mode in the vertical direction, the projection parts of the two adjacent supporting plates on the horizontal plane are overlapped, and the horizontal distance is reserved between each supporting plate and the boundary beam body on the opposite side.

As one embodiment, two adjacent supporting plates have vertical spacing.

As one embodiment, the extending length of each supporting plate on at least one of the side beam bodies changes from top to bottom in a set trend, and the set trend is gradually increased or gradually decreased; the other side beam body corresponding to each supporting plate with set trend change is correspondingly designed into a ladder structure.

As one embodiment, the bridge expansion device further comprises an energy-absorbing and shock-absorbing cover plate, and the energy-absorbing and shock-absorbing cover plate is laid on the two side beam bodies.

In one embodiment, the upper plate surface of one of the support plates is flush with the top surfaces of the two side beam bodies.

In one embodiment, the energy-absorbing and shock-absorbing cover plate is a rubber plate.

As one embodiment, the edge beam body is provided with an assembling bolt for being fixedly connected with the bridge beam body.

In one embodiment, the side sill body and the corresponding pallets are integrally formed.

The utility model also relates to a bridge, which comprises a main beam and at least one group of expansion devices, wherein at least part of the expansion devices adopt the bridge expansion devices, and the side beam body is fixedly arranged on the main beam.

As one embodiment, the bridge expansion device comprises an energy-absorbing and shock-absorbing cover plate, the energy-absorbing and shock-absorbing cover plate is laid on the two side beam bodies, and joint filling materials are used for filling joints between the energy-absorbing and shock-absorbing cover plate and the main beams.

The utility model has at least the following beneficial effects:

the telescopic device provided by the utility model has the advantages that the two side beam bodies are respectively provided with the plurality of support plates, and the support plates on the two side beam bodies are arranged in a staggered manner in the vertical direction, so that the basic requirement of the expansion joint is met, meanwhile, a labyrinth effect is presented between the support plates, the collection of sundries in the expansion joint can be reduced (the downward movement of the sundries is limited by the turn-back space between the support plates), and the sundries can be crushed by the vertical movement between the two adjacent support plates, so that the operation reliability of the telescopic device can be improved, the maintenance frequency is reduced, in addition, compared with the telescopic device adopting a waterproof rubber strip, the telescopic device can not form the conditions of water accumulation and the like in the expansion joint, on the contrary, even if water enters the telescopic device, the water flow on the surfaces of the support plates can also take away the sundries on the surfaces of the support plates, and the operation reliability of the telescopic device is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a bridge expansion device (a damping cover plate is not shown) according to an embodiment of the present invention;

fig. 2 is an installation schematic diagram of a bridge expansion device provided in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 and 2, an embodiment of the present invention provides a bridge expansion device, which includes two side beams 11, where each side beam 11 includes a side beam body 111 and a plurality of support plates 112 extending from the seam ends of the side beam body 111, the support plates 112 on each side beam body 111 are distributed at intervals from top to bottom, the support plates 112 on the two side beam bodies 111 are arranged in a staggered manner in a vertical direction, and projection portions of two adjacent support plates 112 on a horizontal plane coincide, and each support plate 112 has a horizontal distance from the side beam body 111 on the opposite side.

Preferably, the side sill body 111 and the support plates 112 extending from the side sill body 111 are integrally constructed, for example, integrally prefabricated, so that the operational reliability and service life of the side sill 11 can be ensured. In one embodiment, the edge beam 11 is made of high-strength steel, such as solid steel, Z-direction steel, etc., so that it has a better power load bearing capacity, can improve the structural strength and rigidity of the telescopic device, can reduce the on-site cast-in-place wet operation, and has better environmental protection while improving the construction efficiency.

The supporting plate 112 preferably horizontally extends from the seam end of the side beam body 111, i.e. the plate surface of the supporting plate 112 is parallel to the horizontal plane.

It should be understood that the seam-adjacent end of the side sill body 111 means the end of the side sill body 111 near the expansion joint, i.e. the end of the side sill body 111 near the other side sill body 111. Generally speaking, two edge beams 11 are sequentially arranged in the longitudinal direction of the bridge, that is, the length direction of the edge beam body 111 is parallel to the transverse direction of the bridge, and the supporting plate 112 extends out of the edge beam body 111 in the longitudinal direction of the bridge, that is, the extending direction of the supporting plate 112 is parallel to the longitudinal direction of the bridge; the horizontal distance between the supporting plate 112 and the side beam body 111 on the opposite side is also the distance between the supporting plate and the side beam body in the longitudinal direction of the bridge, and the horizontal distance obviously meets the horizontal deformation requirement of the bridge expansion joint.

For the structure of "the supporting plates 112 on the two side sill beam bodies 111 are vertically staggered", the number of each supporting plate 112 on one side sill beam body 111 is a1 and a2, and the number of each supporting plate 112 on the other side sill beam body 111 is b1 and b2., so that the distribution mode of each supporting plate 112 in the vertical direction is a1, b1, a2 and b2.. Above-mentioned staggered arrangement mode can make two boundary beams 11 demonstrate the structure of the mutual interlock of layer board 112, based on this design, can satisfy the basic requirement of expansion joint, and simultaneously, demonstrate the labyrinth effect between each layer board 112, reducible debris collect in the expansion joint (the space of turning back between layer board 112 has restricted the down of debris), and vertical activity between two adjacent layer boards 112 can also crush debris, consequently, can improve the operational reliability of telescoping device, reduce and maintain the frequency, in addition, compare in the telescoping device who adopts waterproof adhesive tape, the telescoping device that this embodiment provided can not form the circumstances such as ponding in the expansion joint, on the contrary, even if there is water entering in the telescoping device, rivers can also take away the debris on layer board 112 surface at the flow on layer board 112 surface, further improve the operational reliability of this telescoping device.

Further preferably, as shown in fig. 1 and 2, two adjacent pallets 112 have a vertical spacing therebetween, and in view of the structure in which two sets of pallets 112 are vertically staggered, obviously, the two adjacent pallets 112 are respectively connected to two side beam bodies 111. Because the supporting plates 112 are arranged at a vertical interval, the telescopic device can meet the requirements on telescopic deformation in the horizontal direction and vertical telescopic deformation, so that the telescopic device is well suitable for multidirectional deformation of a bridge and improves the operation safety of the bridge.

Further preferably, as shown in fig. 1 and fig. 2, the extending length of each supporting plate 112 on at least one of the side beam bodies 111 changes from top to bottom in a set trend, and the set trend is gradually increased or gradually decreased; the other side beam body 111, which is opposite to each pallet 112 having a set tendency, is designed to have a stepped structure. When there are three or more pallets 112 per set, the set trend is preferably a uniform gradual trend. Based on the structure, on the premise of meeting the requirements of the telescopic device, the steel consumption can be saved and the dead weight of the telescopic device can be reduced; in particular, when the uppermost supporting plate 112 is flush with the top surface of the edge beam body 111, the uppermost supporting plate 112 can bear the main dynamic load, which can adopt a larger extension length, and the step structure on the other edge beam body 111 can correspondingly provide a certain supporting force to the uppermost supporting plate 112, so as to improve the dynamic load bearing capability of the supporting plate 112.

In this embodiment, as shown in fig. 1, the number of the support plates 112 on each side beam body 111 is two, so that the overall thickness of the telescopic device can be controlled within 200 mm.

The boundary beam 11 needs to be installed on the main beam 2 of the bridge, and when the boundary beam body 111 adopts a steel structure, the boundary beam body 111 can be fixedly connected with an embedded steel plate on the main beam 2 by adopting a welding mode, or the boundary beam body 111 can be fixedly connected on the main beam 2 by adopting a cast-in-place concrete mode; as a preferred mode of this embodiment, as shown in fig. 1 and fig. 2, the edge beam body 111 is provided with an assembling bolt 12 for being fixedly connected with the bridge beam body, an axis of the assembling bolt 12 is parallel to the vertical direction, and a bolt 12 fixing mode is adopted, so that on one hand, the reliability of the mounting structure of the edge beam body 111 can be ensured, and on the other hand, the height position of the edge beam body 111 can be conveniently adjusted through the assembling bolt 12, so that the mounting efficiency of the telescopic device can be correspondingly improved, the position accuracy of the edge beam 11 is ensured, and meanwhile, the later maintenance and replacement of the edge beam 11 are obviously facilitated. Each side beam body 111 can be provided with a plurality of assembling bolts 12, and the assembling bolts 12 can adopt high-strength friction type bolts 12, so that the connection is reliable and the corrosion is not easy.

The structure of the bridge expansion device is further optimized, as shown in fig. 2, the expansion device further comprises an energy-absorbing and shock-absorbing cover plate 13, and the energy-absorbing and shock-absorbing cover plate 13 is laid on the two side beam bodies 111. In one embodiment, the energy-absorbing and shock-absorbing cover plate 13 is a rubber plate, which has good energy-absorbing and shock-absorbing effects and good weather resistance. By laying the energy-absorbing and shock-absorbing cover plate 13, the boundary beam 11 and the like can be prevented from being directly exposed in the air, the corrosion and the abrasion of the boundary beam 11 are reduced, and the service life of the telescopic device is prolonged; further, can set up the bridge floor parallel and level of the last face of above-mentioned energy-absorbing shock attenuation apron 13 and girder 2, can make the bridge floor level, more comfortable when the car passes through the expansion joint at a high speed, reduce the car condition of jumping, guarantee driving safety. The energy-absorbing and shock-absorbing cover plate 13 is preferably supported on the side sill body 111, and when the side sill body 111 is provided with the assembling bolts 12, the bottom of the energy-absorbing and shock-absorbing cover plate 13 can be correspondingly designed to be avoided, for example, an avoiding groove is formed. Furthermore, the top surface of the energy-absorbing shock-absorbing cover plate 13 can be provided with shock-absorbing convex strips, so that a shock-absorbing belt can be simulated, and the influence of the dynamic load of the automobile on the lower expansion device can be reduced.

Example two

The embodiment of the utility model provides a bridge, which comprises a main beam 2 and at least one group of expansion devices, wherein at least part of the expansion devices adopt the bridge expansion device provided by the first embodiment, and the side beam body 111 is fixedly arranged on the main beam 2.

The mounting structure of the side beam body 111 on the main beam 2 is described in the first embodiment, and is not described herein.

In the scheme that the bridge expansion device comprises the energy-absorbing shock-absorbing cover plate 13, preferably, joint filling materials are adopted between the energy-absorbing shock-absorbing cover plate 13 and the main beam 2 for joint filling, so that the condition that the expansion joint fails due to the fact that sundries enter the expansion device is avoided; the joint filling material can be made of materials such as asphalt and the like, and bridge deck leveling can be performed on the expansion joint.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a bridge telescoping device, includes two boundary beams, its characterized in that: the boundary beam comprises boundary beam bodies and a plurality of supporting plates extending out of the joint end of each boundary beam body, the supporting plates on each boundary beam body are distributed from top to bottom at intervals, the supporting plates on the two boundary beam bodies are vertically arranged in a staggered mode, the projection parts of the two adjacent supporting plates on the horizontal plane are overlapped, and a horizontal interval is reserved between each supporting plate and the boundary beam body on the opposite side.

2. The bridge expansion device of claim 1, wherein: and a vertical space is reserved between every two adjacent supporting plates.

3. The bridge expansion device of claim 1, wherein: the extending length of each supporting plate on at least one side beam body changes in a set trend from top to bottom, and the set trend is gradually increased or gradually decreased; the other side beam body corresponding to each supporting plate with set trend change is correspondingly designed into a ladder structure.

4. The bridge expansion device of claim 1, wherein: the energy-absorbing and shock-absorbing structure is characterized by further comprising energy-absorbing and shock-absorbing cover plates, wherein the energy-absorbing and shock-absorbing cover plates are laid on the two side beam bodies.

5. The bridge expansion device of claim 4, wherein: the upper plate surface of one of the supporting plates is flush with the top surfaces of the two side beam bodies.

6. The bridge expansion device of claim 4, wherein: the energy-absorbing shock-absorbing cover plate is a rubber plate.

7. The bridge expansion device of claim 1, wherein: and the edge beam body is provided with an assembling bolt for fixedly connecting with the bridge beam body.

8. The bridge expansion device of claim 1, wherein: the side beam body and the corresponding support plates form an integrated structure.

9. The utility model provides a bridge, includes girder and at least a set of telescoping device, its characterized in that: the bridge expansion device of any one of claims 1 to 8, wherein the side beam body is fixedly mounted on the main beam.

10. The bridge of claim 9, wherein: the bridge expansion device comprises energy-absorbing and shock-absorbing cover plates, the energy-absorbing and shock-absorbing cover plates are laid on the girder bodies of the two side beams, and joint filling materials are adopted between the energy-absorbing and shock-absorbing cover plates and the main beams for joint filling.