CN218989875U

CN218989875U - Bridge expansion joint device

Info

Publication number: CN218989875U
Application number: CN202221770238.9U
Authority: CN
Inventors: 刘明辉; 张雁宇; 周媛媛; 樊敏; 姚伟光; 王彬; 齐合娟; 贾国强; 郑文博
Original assignee: Beijing Zhonggang Lutong Engineering Management Co ltd; China Railway Fifth Survey and Design Institute Group Co Ltd
Current assignee: Beijing Zhonggang Lutong Engineering Management Co ltd; China Railway Fifth Survey and Design Institute Group Co Ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2023-05-09
Anticipated expiration: 2032-07-11

Abstract

The embodiment of the application provides a bridge expansion joint device, which comprises two beam bodies which are opposite and provided with gaps, wherein each beam body is fixedly provided with a fixing box and a boundary beam, the fixing box is provided with a hollow cavity, and an opening of the fixing box faces to the gaps; the side beam is arranged at one side close to the gap; the two ends of the cross beam are respectively sleeved with the hollow cavities of the fixing boxes at the two sides of the gap in the longitudinal direction of the bridge; the cross beam is detachably and fixedly connected with the fixed box. Compared with the prior art, the device is stable in structure and reasonable in design, is convenient to replace due to the fact that the device is connected in a detachable mode, and further improves working efficiency.

Description

Bridge expansion joint device

Technical Field

The application relates to the technical field of bridge construction, in particular to a bridge expansion joint device.

Background

The bridge expansion joint is one of important components of bridge structural design to meet the requirement of bridge deck deformation, wherein the modular bridge expansion joint device is the most common and better one, has a traffic bearing surface with certain strength safety storage, a traffic bearing surface with comfortable operation and a traffic bearing surface with running safety (anti-skid), and reduces the impact of automobile load, vibration caused by the impact and noise generated by the impact.

However, the bridge expansion joint is the weakest component part in the bridge structure, directly bears the impact of the vehicle load and is exposed to the air for a long time, so that the bridge expansion joint is easy to damage and has higher maintenance cost, and the operation and the safety of normal traffic can be influenced more when the bridge expansion joint is not maintained in time after being damaged. In the existing bridge expansion joint device, the following technical problems exist:

1. the expansion displacement device has large abrasion loss, the bridge expansion joint is impacted by the gravity of a large number of vehicles or heavy vehicles for a long time, the expansion part in the bridge expansion joint has large bearing and large abrasion loss, the displacement device in the bridge expansion joint structure is of an integral structure, the abrasion and aging of part of the structure can directly influence the stability of the integral expansion joint, and the bridge is easy to be disjointed.

2. The sealing system is corroded by rainwater and has high corrosiveness, and the sealing performance of the expansion joint can be gradually reduced due to long-term exposure, so that the quick replacement of the water stop belt is more important.

Disclosure of Invention

The embodiment of the application provides a bridge expansion joint device to solve current bridge expansion joint wearing and tearing volume big, because the device is overall structure, the problem that consequently the part of wearing and tearing is difficult to change.

In order to achieve the above purpose, the present application provides the following technical solutions:

the embodiment of the application provides a bridge expansion joint device, include:

two opposite beam bodies with gaps, wherein each beam body is fixedly provided with a fixed box and a side beam, the fixed box is provided with a hollow cavity, and an opening of the fixed box faces the gaps; the side beam is arranged at one side close to the gap;

the two ends of the cross beam are respectively sleeved with the hollow cavities of the fixing boxes at the two sides of the gap in the longitudinal direction of the bridge; the cross beam is detachably and fixedly connected with the fixed box.

Further, the method further comprises the following steps:

the middle beam is positioned between the two opposite beam bodies, and one end of the middle beam, which is close to the cross beam, is fixedly connected with the cross beam in a detachable mode through a connecting piece.

Further, the connecting piece is a hoop type connecting piece.

Further, the method further comprises the following steps:

a water stop;

the water stop is located between the side beam and the middle beam, clamping grooves used for installing the water stop are respectively formed in one sides, close to each other, of the tops of the side beam and the middle beam, and the water stop is detachably installed in the clamping grooves.

Further, the water stop includes: the plastic body and the rubber water stop, the rubber water stop is V-shaped rubber water stop, the V-shaped rubber water stop is arranged in the two end parts of the opening direction of the rubber water stop, and the plastic body is used for being installed in the clamping groove.

Further, the method further comprises the following steps:

a spring elastic member;

the spring elastic piece is positioned between the end wall of the middle beam and the end wall of the fixed box in the longitudinal direction of the bridge;

in the vertical direction of the bridge, the bottom of the middle beam of the spring elastic piece is positioned on the upper surface of the cross beam;

the spring elastic piece comprises a spring and two stop blocks, wherein the two stop blocks are respectively positioned on two end faces along the length direction of the spring, and the two stop blocks are fixedly connected with the end faces of the spring.

Further, the fixed box comprises a first side wall and a second side wall which are arranged in parallel along the longitudinal direction of the bridge, the first side wall is fixed with the beam body through an anchoring piece, and the second side wall is provided with the opening.

Further, the method further comprises the following steps:

an elastic member;

the elastic piece is arranged at two ends of the length direction of the cross beam and is used for being matched with the first side wall and/or the second side wall to buffer.

Further, the elastic member includes: the first elastic piece and the second elastic piece are arranged on the peripheral outer walls of the two ends of the cross beam along the length direction and are used for being matched with the second side wall to buffer;

the second elastic piece is arranged on the length direction of the cross beam, protrudes out of the end wall of the cross beam and is used for being matched with the first side wall to buffer.

Further, the first side wall and the circumferential inner wall of the hoop type connecting piece are paved with magnetic rubber strips.

Further, a first elastic body is arranged on the lower surface of the middle beam and is used for being attached to the upper surface of the cross beam;

the lower part of the hoop type connecting piece is provided with a second elastomer, and the second elastomer is used for being attached to the lower surface of the cross beam.

Further, the length of the cross beam is greater than or equal to twice the length between the second side walls on both sides of the gap;

and extension parts are arranged at two ends of the length direction of the cross beam, one end of each extension part is connected with the cross beam, and the other end of each extension part extends to one side far away from the center of the cross beam.

Adopt the bridge expansion joint device that provides in this application embodiment, compare in prior art, have following technical effect:

through two roof beam bodies at relative and having the gap, all set firmly fixed case and boundary beam on every roof beam body, on the fixed case had the longitudinal direction of cavity bridge, the both ends of crossbeam respectively with the cavity suit of the fixed case in gap both sides, crossbeam and fixed case detachable fixed connection, owing to adopt detachable mode to connect, consequently, when wearing and tearing or ageing condition appear, and then the change of the crossbeam of being convenient for improves work efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic cross-sectional view of a bridge expansion joint device according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a bridge expansion joint device according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a bridge expansion joint device according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a middle beam and a middle beam of a bridge expansion joint device according to an embodiment of the present application;

fig. 5 is a schematic top view of a bridge expansion joint device according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view of a water stop according to a first embodiment of the present disclosure;

fig. 7 is a schematic structural view of a water stop according to a second embodiment of the present disclosure.

The figures are marked as follows:

the side beam 1, the middle beam 2, the cross beam 3, the fixed box 4, the water stop 5, the elastic component 6, the first elastic component 7, the anchoring piece 8, the anchoring device 9, the spring elastic body 10, the nut 11, the bolt 12, the rubber strip 13 with magnetism, the beam body 14, the PVC plastic body 15 and the rubber water stop 16.

Detailed Description

The embodiment of the utility model discloses a bridge expansion joint device, which aims to solve the problems that the abrasion loss of the existing bridge expansion joint is large, and the worn part is not easy to replace because the device is of an integral structure.

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is given with reference to the accompanying drawings, and it is apparent that the described embodiments are only some of the embodiments of the present application and not exhaustive of all the embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

Referring to fig. 1 to 7, fig. 1 is a schematic cross-sectional view of a bridge expansion joint device according to an embodiment of the present application; FIG. 2 is a schematic cross-sectional view of a bridge expansion joint device according to an embodiment of the present disclosure; FIG. 3 is a schematic cross-sectional view of a bridge expansion joint device according to an embodiment of the present disclosure; fig. 4 is a schematic structural diagram of a middle beam and a middle beam of a bridge expansion joint device according to an embodiment of the present application; fig. 5 is a schematic top view of a bridge expansion joint device according to an embodiment of the present disclosure; fig. 6 is a schematic structural view of a water stop according to a first embodiment of the present disclosure; fig. 7 is a schematic structural view of a water stop according to a second embodiment of the present disclosure.

In one specific embodiment, the present application provides a bridge expansion joint device comprising:

two opposite beam bodies 14 with gaps, wherein each beam body 14 is fixedly provided with a fixed box 4 and a boundary beam 1, the fixed box 4 is provided with a hollow cavity, and an opening faces the gaps; the boundary beam 1 is located near one side of the gap, in this embodiment, the side surface of the boundary beam 1 is connected with the beam body 14 by adopting rigid anchoring and pouring, the predetermined position is reserved by a bolt screw before pouring, the lower part of the boundary beam is connected with the fixed box 4 by placing the elastic component 6, the side surface of the boundary beam is connected with the beam body 14 by adopting rigid anchoring and pouring, and the predetermined position is reserved by the bolt screw before pouring.

In the longitudinal direction of the bridge, the cross beam 3 is in a cylindrical structure, the outer surface of the cross beam 3 is galvanized, rust on the outer surface of the cross beam 3 due to long-time use is prevented, the service life of the cross beam 3 is prolonged, and two ends of the cross beam 3 are respectively sleeved with hollow cavities of the fixing boxes at two sides of a gap; the cross beam 3 and the fixed box are fixedly connected in a detachable mode through the sleeve, so that the cross beam is replaced in time when maintenance is needed.

The middle beam 2 is located between two opposite beam bodies 14, in this embodiment, the middle beam 2 adopts aluminum alloy material, the middle beam 2 is close to crossbeam 3 one end and passes through connecting piece 8 and crossbeam 3 detachable fixed connection back through anchor 9 and fixed box fixed connection, in this embodiment, boundary beam 1 and middle beam 2 parallel placement, middle beam 2 quantity is from 0, when middle beam 2's quantity is more than 2, be provided with the spring rubber area between the adjacent middle beam 2, the length of specific spring rubber area is according to actual need definite spring rubber area length, the spring rubber area adopts the magnetic rubber area of inhaling, the installation is convenient for change simply, in this embodiment, middle beam 2 weight is the half of boundary beam 1 weight, and the width is less than boundary beam width, length is greater than boundary beam length.

Because the one end that middle beam 2 is close to crossbeam 3 adopts detachable mode fixed connection, in this embodiment, middle beam 2 is connected perpendicularly through the crossbeam 3 that can dismantle connected mode and lower part set up, the junction has the elastomer as the support, consequently, after middle beam 2 and crossbeam 3 appear wearing and tearing, only need open the connecting piece and can change, in this embodiment, connecting piece 8 is staple bolt formula connecting piece, staple bolt formula connecting piece adopts bolt 12 and nut 11 to fix it, and then be convenient for construction, installation easy operation, only need just to accomplish through simple instrument and change and install middle beam 2 and crossbeam 3, be favorable to reducing the manual work, improve work efficiency.

In addition, it should be noted that, in the present embodiment, the method further includes: the water stop belt 5 is formed by pouring elastic rubber on the whole water stop belt 5;

the water stop 5 is located between boundary beam 1 and the middle beam 2, and one side that the top of boundary beam 1 and middle beam 2 is close to each other is equipped with the draw-in groove that is used for installing water stop 5 respectively, and water stop 5 detachable installs in the draw-in groove, and then is convenient for change after workman's door is dismantled when the water stop appears ageing under the condition, and then improves work efficiency.

Specifically, in the present embodiment, the water stop 5 includes: the plastic body 15 and the rubber water stop 16, the rubber water stop 16 is a V-shaped rubber water stop, plastic bodies are arranged in the two end parts of the V-shaped rubber water stop in the opening direction, the specific plastic bodies are PVC spherical plastic bodies, the PVC spherical plastic bodies are embedded into the two end parts in a burying mode, the plastic bodies 15 are used for being installed in clamping grooves, the specific clamping grooves are C-shaped clamping grooves, and the end parts of the built-in plastic bodies 15 are clamped with the C-shaped clamping grooves; after the rubber is aged, the PVC spherical plastic body can be taken out, a new rubber water stop 16 can be directly replaced, in addition, when the boundary beam 1 or the middle beam 2 is of an F type, the shape of the rubber water stop 16 can be set to be of an X type, the preset position of a bolt screw is adopted before the water stop 5 is poured, after the positions of the middle beam 1, the transverse beam 3 and the fixing box 4 are fixed, the compression bolt is preloaded and fixed in the bridge, and finally the bridge is poured and formed.

In addition, it should be noted that, in the present embodiment, the method further includes: a spring elastic member 10;

in the longitudinal direction of bridge, spring elastic element 10 is located between the end wall of well roof beam and the end wall of fixed case 4, through the spring elastic element 10 that sets up, and then can play the effect of supporting to well roof beam 2 through the spring elastic element 10 that sets up to can effectually play cushioning effect, avoid leading to each other weak connection because of long-time friction, another convenience makes well roof beam 2 and fixed case 4 tighten each other through the frictional force between spring elastic element 10 increase well roof beam 2 and the fixed case 4, ensures that the structure is more stable.

On the vertical direction of the bridge, the spring elastic piece 10 is located at the bottom of the middle beam 2 and the upper surface of the cross beam 3, the middle beam 2 and the cross beam 3 are ensured to be in elastic contact with each other in the telescopic displacement process through the set spring elastic piece 10, vibration generated by telescopic displacement is reduced, and the structure is ensured to be more stable.

Specifically, the spring elastic member 10 includes a spring and two stoppers, the two stoppers are located on two end faces along the length direction of the spring, and the two stoppers are fixedly connected with the end faces of the spring, in this embodiment, the spring and the stoppers are integrally formed or fixedly connected through bonding, in addition, the spring elastic member can be conveniently detached through the spring under the condition of aging occurrence due to long-time use, and further the working efficiency is improved.

The stationary box 4 includes: the first side wall and the second side wall which are longitudinally and parallelly arranged along the bridge are fixed with the beam body through the anchoring piece 8, the second side wall is provided with an opening, the diameter of the opening is smaller than that of the first side wall of the fixed box, a lubricating oil coating is added inside the fixed box 4, a lubricating agent is added outside an opening edge ring steel material, a lubricating effect can be achieved by adding the lubricating oil coating, deformation of the fixed box 4 caused by long-time friction is avoided, the stability of an integral expansion joint can be directly influenced due to abrasion and aging of part of the structure, the bridge is easy to be disconnected, and the structure is more stable;

in addition, it should be noted that, the diameter of the opening on the second side wall of the fixed box 4 is greater than the diameter of the cross beam 3, and the annular steel material at the edge of the opening is wrapped with a high elastomer rubber block, so that the opening is prevented from being in direct contact with the outer wall surface of the cross beam 4, abrasion is easily caused for a long time, and the service life is prolonged.

Furthermore, the method further comprises: an elastic member;

the elastic piece sets up along the both ends of the length direction of crossbeam 3 for cooperate with first lateral wall and/or second lateral wall to cushion, specific elastic piece passes through the bonding or fixes the both ends at the crossbeam through the mode of bolt fastening, ensures that elastic piece can close joint, fixed firm fix the both ends at the crossbeam, avoids receiving the gravity impact of a large amount of vehicles or heavy vehicles for a long time, causes the elastic piece to drop, and then ensures that the structure is more stable.

Specifically, in the present embodiment, the elastic member includes: the first elastic piece 7 and the second elastic piece are arranged on the peripheral outer walls of the two ends of the first elastic piece 7 along the length direction of the cross beam and are used for being matched with the second side wall to buffer; through the first elastic component 7 that sets up, guarantee the circumference outer wall and the fixed box 4 elastic contact of crossbeam, avoid at flexible displacement's in-process, take place the striking, guarantee mutual elastic contact to reduce the vibrations that produce because of flexible displacement, make the structure more stable.

The second elastic piece, on the length direction of crossbeam 3, the second elastic piece protrusion is in the end wall setting of crossbeam 3 for cooperate with first lateral wall and cushion, through placing the second elastomer, can guarantee the mutual elastic contact of edge at flexible displacement's in-process, and reduce the vibrations that produce because of flexible displacement.

In addition, it should be noted that, all lay on the circumference inner wall of first lateral wall and staple bolt and have magnetic rubber strip 13, through set up magnetic rubber strip at first lateral wall for can not take place vibrations when crossbeam 3 and fixed case 4 contact, play the cushioning effect, in addition, magnetic rubber strip diameter is the same with fixed case 4, and thickness does not need the fixed value, and specific thickness can confirm elastic strip thickness according to the quantity of well roof beam.

Through all lay the rubber strip 13 that has magnetism on the circumference inner wall of staple bolt, and then can increase frictional force, make well roof beam 2 and crossbeam 3 press from both sides tightly completely, crossbeam 3 length is when the one end of crossbeam 3 and fixed bottom of the case 4 portion contact completely, and the opposite side keeps 10mm apart from fixed case border position, and the contact is not, through all lay the rubber strip 13 that has magnetism on the circumference inner wall of staple bolt, and then increase frictional force, makes well roof beam 2 and crossbeam 3 press from both sides tightly completely, ensures that the structure is more stable.

In the present embodiment, the lower surface of the center sill 2 is provided with a first elastic body for bonding to the upper surface of the cross member 3, and the first elastic body is provided for supporting the center sill. The top of the first elastic body is horizontally connected with the bottom of the middle beam, and the bottom of the first elastic body is semicircular and connected with the tubular cross beam;

the lower part of staple bolt formula connecting piece is equipped with the second elastomer, and the second elastomer is used for laminating with the lower surface of crossbeam, avoids staple bolt formula connection and crossbeam direct contact through the second elastomer that sets up, produces vibration, ensures that the structure is more stable.

In addition, it is worth mentioning that the length of the cross beam 3 is greater than or equal to twice the length between the second side walls on both sides of the slot, when one side of the cross beam 3 is in complete contact, the other side is kept at a certain distance from the edge position of the fixed box 4 until the other side is out of contact;

the extension portion is arranged at two ends along the length direction of the cross beam 3, one end of the extension portion is connected with the cross beam 3, the other end of the extension portion extends to the side far away from the center of the cross beam 3, the cross beam 3 which is arranged through the extension portion is prevented from falling from the opening of the fixed box 4 due to telescopic movement, the structure is ensured to be more stable, and in addition, the extension portion and the cross beam 3 are tightly connected and firmly fixed, so that the extension portion and the cross beam 3 are fixedly connected in a welding or integrated forming mode.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A bridge expansion joint device, comprising:

2. The bridge expansion joint device according to claim 1, further comprising:

3. The bridge expansion joint device according to claim 2 wherein said connector is a hoop connector.

4. The bridge expansion joint device according to claim 2, further comprising:

a water stop;

5. The bridge expansion joint device according to claim 4 wherein said water stop comprises: the plastic body and the rubber water stop, the rubber water stop is V-shaped rubber water stop, the V-shaped rubber water stop is arranged in the two end parts of the opening direction of the rubber water stop, and the plastic body is used for being installed in the clamping groove.

6. A bridge expansion joint according to claim 3, further comprising:

a spring elastic member;

7. The bridge expansion joint device according to claim 6, wherein said fixing box comprises a first side wall and a second side wall which are arranged in parallel along the longitudinal direction of the bridge, said first side wall is fixed with said beam body via an anchor, and said second side wall is provided with said opening.

8. The bridge expansion joint device according to claim 7, further comprising:

an elastic member;

9. The bridge expansion joint device according to claim 8 wherein said elastic member comprises: the first elastic piece and the second elastic piece are arranged on the peripheral outer walls of the two ends of the cross beam along the length direction and are used for being matched with the second side wall to buffer;

10. The bridge expansion joint device according to claim 9, wherein magnetic rubber strips are laid on the circumferential inner walls of said first side wall and said anchor ear type connector.

11. The bridge expansion joint device according to claim 10, wherein the lower surface of the middle beam is provided with a first elastic body, and the first elastic body is used for being attached to the upper surface of the cross beam;

12. A bridge expansion joint according to any one of claims 7 to 11 wherein the length of the cross beam is greater than or equal to twice the length between the second side walls on either side of the gap;