CN212983571U

CN212983571U - Large-displacement bridge expansion joint

Info

Publication number: CN212983571U
Application number: CN202020581826.2U
Authority: CN
Inventors: 王慧
Original assignee: Hengshui Huawang Engineering Rubber & Plastic Co ltd
Current assignee: Hengshui Huawang Engineering Rubber & Plastic Co ltd
Priority date: 2020-04-18
Filing date: 2020-04-18
Publication date: 2021-04-16
Anticipated expiration: 2030-04-18

Abstract

The utility model discloses a large displacement bridge expansion joint, which comprises two bridge plates and an expansion joint component arranged between the two bridge plates, wherein the expansion joint component comprises a bearing component arranged between the two bridge plates, and the bottom of the bearing component is provided with a ground anchor bolt for anchoring the bearing component; bearing member's both sides all are provided with movable member, expansion spring has been cup jointed to movable member outside, the utility model is suitable for a bridge expansion joint, the roof of expansion joint passes through the countersunk bolt and fixes in the double-screw bolt of heavy ball top, and the heavy ball adopts pre-buried mode to arrange the inside of bridge plate in, after accomplishing the roof installation, heavy ball and double-screw bolt can provide the power of being connected of roof and bridge plate jointly, the joint strength of roof and bridge plate has been guaranteed, thereby make the stability of roof higher, and such structure setting makes the roof when the damage needs to be changed, need not set up the bolt hole in addition again, it is more convenient to make its change, the damage to the bridge plate has been reduced simultaneously.

Description

Large-displacement bridge expansion joint

Technical Field

The utility model belongs to the technical field of the bridge expansion joint, specifically a big displacement volume bridge expansion joint.

Background

The expansion joints of the bridge are designed to meet the requirement of deformation of the bridge deck, and are usually arranged between two beam ends, between the beam ends and a bridge abutment or at the hinged position of the bridge, and are required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, so that the expansion joints are firm and reliable, and the vehicle is smooth and free of sudden jump and noise when running; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, inspection, maintenance and dirt elimination are all simple and convenient, at the position where the expansion joint is arranged, the handrail and the bridge deck pavement are disconnected, the bridge expansion joint has the function of adjusting the displacement and connection between upper structures caused by vehicle load and bridge building materials, once the expansion device of the oblique bridge is damaged, the speed, comfort and safety of driving are seriously influenced, and even driving safety accidents are caused, and the bridge expansion joint generally has a butt joint type, a steel support type, a combined shear type (plate type), a module support type and an elastic device;

however, when the existing bridge expansion joint is used for a long time, the expansion joint arch phenomenon exists, driving safety is influenced, potential safety hazards exist, the existing bridge expansion joint is large in disassembly difficulty after being damaged, and the bridge is influenced by replacement, so that the requirement of people is difficult to meet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a big displacement volume bridge expansion joint.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a large-displacement bridge expansion joint comprises two bridge plate blocks and an expansion joint assembly arranged between the two bridge plate blocks, wherein the expansion joint assembly comprises a bearing member arranged between the two bridge plate blocks, and the bottom of the bearing member is provided with a ground anchor bolt for anchoring the bearing member;

the bridge plate is characterized in that movable rod pieces are arranged on two sides of the bearing member, telescopic springs are sleeved outside the movable rod pieces, embedded steel pipes are embedded in the inner walls of the bridge plate blocks in a pre-embedded mode, and one ends of the movable rod pieces are sleeved in the embedded steel pipes.

Preferably, the bridge plate structure further comprises a top plate, the top plate is located on the upper surface of the bridge plate, and a slope surface structure is adopted on one side, away from the bearing component, of the top plate.

Preferably, the upper surface of the bearing member is provided with a positioning bolt hole, and a countersunk head bolt for mounting the bearing member is inserted into the positioning bolt hole.

Preferably, sinking balls are pre-embedded in the upper surface of the bridge plate, studs are welded at the tops of the sinking balls, the tops of the studs are flush with the upper surface of the bridge plate, the studs and the countersunk bolts are located on the same vertical line, and the bottoms of the countersunk bolts are inserted into the studs.

Preferably, a limiting clamping plate is installed above the bearing member, a limiting clamping groove is formed in the lower surface of one side, close to the bearing member, of the top plate, and the limiting clamping plate is clamped in the limiting clamping groove.

Preferably, the vertical sections of the limiting clamping plate and the limiting clamping groove are both of T-shaped structures.

The utility model relates to a large displacement volume bridge expansion joint, the roof of expansion joint passes through the countersunk bolt to be fixed in the double-screw bolt above the sinker, and the sinker adopts pre-buried mode to arrange in the inside of bridge plate, after accomplishing the roof installation, sinker and double-screw bolt can provide the power of being connected of roof and bridge plate jointly, guaranteed the joint strength of roof and bridge plate, thereby make the stability of roof higher, and such structure setting up makes the roof damage when needing to be changed, do not need to set up the bolt hole in addition again, make its change more convenient, reduced the damage to the bridge plate simultaneously;

the utility model discloses in, bearing member installs spacing cardboard in the top, the roof has been close to one side lower surface of bearing member and has been seted up spacing draw-in groove, spacing cardboard block is in spacing draw-in groove, and the perpendicular cross-section of spacing cardboard and spacing draw-in groove all adopts T type structure, when two bridge plate blocks when taking place relative motion, spacing cardboard can remain throughout and slide in spacing draw-in groove is inside, when having guaranteed two bridge plate blocks, the motion at this expansion joint is in the coplanar all the time, prevent that the expansion joint arching phenomenon from appearing.

Drawings

Fig. 1 is a schematic view of the overall structure of a large displacement bridge expansion joint of the present invention;

FIG. 2 is a schematic view of the top plate structure in the expansion joint of the large displacement bridge of the present invention;

fig. 3 is the utility model relates to a spacing cardboard structure sketch map in big displacement volume bridge expansion joint.

Reference numerals: 1. a limiting clamping plate; 2. a limiting clamping groove; 3. a top plate; 4. positioning the bolt hole; 5. a countersunk bolt; 6. a stud; 7. sinking the ball; 8. bridge plate blocks; 9. pre-burying a steel pipe; 10. a movable rod member; 11. a tension spring; 12. a ground anchor bolt; 13. a load bearing member.

Detailed Description

The following will further describe a specific embodiment of the large displacement bridge expansion joint according to the present invention with reference to the accompanying drawings 1-3. The utility model relates to a big displacement volume bridge expansion joint is not limited to the description of following embodiment.

Example 1:

the embodiment provides a concrete structure of a large-displacement bridge expansion joint, as shown in fig. 1-3, which includes two bridge plates 8 and an expansion joint assembly disposed between the two bridge plates 8, wherein the expansion joint assembly includes a bearing member 13 disposed between the two bridge plates 8, and a ground anchor bolt 12 for anchoring the bearing member 13 is disposed at the bottom of the bearing member 13;

both sides of the bearing component 13 are provided with movable rod members 10, the outsides of the movable rod members 10 are sleeved with extension springs 11, the inner walls of the bridge plate blocks 8 are pre-embedded with embedded steel pipes 9, and one ends of the movable rod members 10 are sleeved in the embedded steel pipes 9.

By adopting the technical scheme:

when the two bridge plates 8 move relatively, the movable rod 10 always moves inside the embedded steel pipe 9, so that the limiting effect is achieved, and the movement of the two bridge plates 8 is always in the same plane.

Example 2:

the embodiment provides a concrete structure of a large-displacement bridge expansion joint, as shown in fig. 1-3, the structure further comprises a top plate 3, the top plate 3 is located on the upper surface of the bridge plate 8, and a slope structure is adopted on one side of the top plate 3 away from the bearing member 13.

The upper surface of the bearing component 13 is provided with a positioning bolt hole 4, and a countersunk head bolt 5 for mounting the bearing component 13 is inserted in the positioning bolt hole 4.

The upper surface of the bridge plate 8 is pre-embedded with a sinking ball 7, the top of the sinking ball 7 is welded with a stud 6, the top of the stud 6 is flush with the upper surface of the bridge plate 8, the stud 6 and the countersunk head bolt 5 are positioned on the same vertical line, and the bottom of the countersunk head bolt 5 is inserted into the stud 6.

By adopting the technical scheme:

bridge plate 8's inside is arranged in to heavy ball 7 adoption pre-buried mode, and roof 3 passes through countersunk head bolt 5 to be fixed in the double-screw bolt 6 of heavy ball 7 top, and after the installation of completion roof 3, heavy ball 7 and double-screw bolt 6 can provide roof 3 and bridge plate 8's joint force jointly to make roof 3's stability higher, and such structure setting makes roof 3 need not squeeze into the bolt in addition again when damaging the needs change, makes the change more convenient.

Example 3:

in this embodiment, a specific structure of a large-displacement bridge expansion joint is shown in fig. 1-3, a limiting clamping plate 1 is installed above a bearing member 13, a limiting clamping groove 2 is formed in a lower surface of one side of a top plate 3, which is close to the bearing member 13, and the limiting clamping plate 1 is clamped in the limiting clamping groove 2.

The vertical sections of the limiting clamping plate 1 and the limiting clamping groove 2 are both of T-shaped structures.

By adopting the technical scheme:

because bearing member 13 top is installed spacing cardboard 1, roof 3 has been close to one side lower surface of bearing member 13 and has been seted up spacing draw-in groove 2, spacing cardboard 1 block is in spacing draw-in groove 2, and the perpendicular cross-section of spacing cardboard 1 and spacing draw-in groove 2 all adopts T type structure, when two bridge plate 8 when taking place relative motion, spacing cardboard 1 can remain throughout and slide in spacing draw-in groove 2 inside, when having guaranteed two bridge plate 8, the motion of this expansion joint is in the coplanar all the time, the expansion joint arching phenomenon prevents to appear.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a big displacement volume bridge expansion joint, includes two bridge plate blocks (8) and sets up in two expansion joint subassembly between bridge plate block (8), its characterized in that: the expansion joint assembly comprises a bearing member (13) arranged between the two bridge plates (8), and the bottom of the bearing member (13) is provided with a ground anchor bolt (12) for anchoring the bearing member (13);

the bridge plate is characterized in that movable rod pieces (10) are arranged on two sides of the bearing member (13), telescopic springs (11) are sleeved outside the movable rod pieces (10), embedded steel pipes (9) are embedded in the inner wall of the bridge plate (8), and one ends of the movable rod pieces (10) are sleeved in the embedded steel pipes (9).

2. The expansion joint of bridge with large displacement as claimed in claim 1, wherein: the bridge plate is characterized by further comprising a top plate (3), wherein the top plate (3) is located on the upper surface of the bridge plate block (8), and a slope surface structure is adopted on one side, far away from the bearing component (13), of the top plate (3).

3. The expansion joint of bridge with large displacement as claimed in claim 2, wherein: the bearing component is characterized in that a positioning bolt hole (4) is formed in the upper surface of the bearing component (13), and a countersunk head bolt (5) used for installing the bearing component (13) is inserted into the positioning bolt hole (4).

4. A bridge expansion joint with large displacement according to claim 3, wherein: the upper surface of the bridge plate block (8) is pre-buried with a sinking ball (7), a stud (6) is welded at the top of the sinking ball (7), the top of the stud (6) is flush with the upper surface of the bridge plate block (8), the stud (6) and the countersunk head bolt (5) are located on the same vertical line, and the bottom of the countersunk head bolt (5) is inserted into the stud (6).

5. The expansion joint of bridge with large displacement as claimed in claim 2, wherein: a limiting clamping plate (1) is installed above the bearing member (13), a limiting clamping groove (2) is formed in the lower surface of one side, close to the bearing member (13), of the top plate (3), and the limiting clamping plate (1) is clamped in the limiting clamping groove (2).

6. The expansion joint of bridge with large displacement as claimed in claim 5, wherein: the vertical sections of the limiting clamping plate (1) and the limiting clamping groove (2) are both of T-shaped structures.