CN210341624U

CN210341624U - Novel bridge expansion joint structure

Info

Publication number: CN210341624U
Application number: CN201920864573.7U
Authority: CN
Inventors: 龚宗明; 程小丹
Original assignee: Jiangsu Maurer New Material Technology Co ltd
Current assignee: Jiangsu leading mengmaole Zhizao Technology Group Co., Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-04-17
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a novel bridge expansion joint structure, which comprises a bridge main body and a steel cover plate, wherein the bridge main body is provided with two, a gap is arranged between the two bridge main bodies, one side of the two bridge main bodies, which is close to each other, is provided with a steel plate, the middle part of the gap is provided with a steel supporting block, two sides of the steel supporting block are provided with first cement concrete columns, and the positions, which correspond to the first cement concrete columns, on the bridge main body and the steel plate are provided with first guide holes, the first cement concrete column is inserted in the first spring, the first cement concrete column can play a supporting role for the supporting steel block, thereby reducing the stress condition of the first spring, reducing the stress of the spring, prolonging the service life of the first spring, providing the second spring with a guide column, and when the second spring is stressed by a vehicle above, the second spring can vertically stretch out and draw back, radial bending cannot be generated, and the service life of the second spring is prolonged.

Description

Novel bridge expansion joint structure

Technical Field

The utility model relates to a bridge expansion joint technical field specifically is a novel bridge expansion joint structure.

Background

In order to avoid the damage of the bridge expansion joint due to the frequent rolling of the passing vehicles, patent application No. 201820331310.5 proposes a bridge expansion joint structure, which connects a steel support block between two bridge plates by a spring and covers the steel cover plate above, but this method has the following disadvantages:

the steel supporting block is completely supported by the spring, so that the stress of the spring is overlarge, and the service life of the spring is shortened;

the spring below the steel cover plate is in a direct installation state, and when the spring is stressed by a vehicle, the spring below the steel cover plate is easy to bend radially, so that the service life of the spring is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel bridge expansion joint structure to solve among the prior art spring of steel apron below and be the direct mount state, when receiving the pressure of vehicle, the spring of steel apron below produces radial bending easily, reduces the problem in its life-span.

In order to achieve the above object, the utility model provides a following technical scheme: a novel bridge expansion joint structure comprises two bridge main bodies and a steel cover plate, wherein a gap is formed between the two bridge main bodies, a steel plate is arranged on one side, close to each other, of each of the two bridge main bodies, a steel supporting block is arranged in the middle of the gap, first cement concrete columns are arranged on two sides of the steel supporting block, first guide holes are formed in positions, corresponding to the first cement concrete columns, of the bridge main bodies and the steel plate, first springs are inserted outside the circumference of each first cement concrete column, one end, far away from the steel supporting block, of each first cement concrete column is inserted into the corresponding first guide hole, steel columns are arranged on two sides and the middle of the lower portion of the steel cover plate, second guide holes are formed in positions, corresponding to the steel columns, of the upper surfaces of the bridge main bodies and the steel supporting blocks, and second springs are inserted outside the circumference of the steel columns, and the lower end of the second guide hole is inserted into the inside of the second guide hole.

Preferably, the two sides of the steel cover plate are both fixed with wedge blocks, and the wedge blocks are made of steel.

Preferably, the bridge main body is connected with the steel plate through embedded bolts.

Preferably, the upper surface of the bridge main body is provided with a drainage channel, and two ends of the drainage channel extend to two sides of the bridge main body.

Preferably, the first cement concrete column is connected with the steel supporting block through foundation bolts, and balls are mounted on the upper side and the lower side of one end, inserted into the first guide hole, of the first cement concrete column.

Preferably, the upper end of the steel column is connected with the steel cover plate through a hinge joint.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the novel spring, the first cement concrete column is inserted into the first spring, and the first cement concrete column can play a supporting role in supporting the steel block, so that the stress condition of the first spring can be reduced, the stress of the spring is reduced, and the service life of the first spring can be prolonged;

2. the guide post is arranged on the second spring, so that the second spring can vertically stretch and retract when being subjected to the pressure of a vehicle above, radial bending cannot be generated, and the service life of the second spring is prolonged.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the connection between the first cement concrete column and the first spring of the present invention.

In the figure: 1. a bridge main body; 2. a first guide hole; 3. embedding bolts in advance; 4. a steel plate; 5. a first cement concrete column; 6. a steel support block; 7. a first spring; 8. a steel cover plate; 9. a wedge block; 10. a second guide hole; 11. a steel column; 12. a second spring; 13. a gap; 14. a water drainage groove.

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 without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in the embodiment of the present invention, a novel bridge expansion joint structure includes a bridge main body 1 and a steel cover plate 8, the number of the bridge main body 1 is two, a gap 13 is provided between the two bridge main bodies 1, the gap 13 is used as an installation position of a telescopic structure, steel plates 4 are provided on the sides of the two bridge main bodies 1 close to each other, the steel plates 4 are used for protecting the sides of the bridge main bodies 1, the bridge main bodies 1 and the steel plates 4 are connected by embedded bolts 3, a steel support block 6 is provided in the middle of the gap 13, and the steel support block 6 plays a supporting role;

referring to fig. 1 and 2, first cement concrete columns 5 are respectively installed on two sides of a steel support block 6, the first cement concrete columns 5 are used as guide columns of first springs 7 and are also used as bearing parts of the steel support block 6, the first cement concrete columns 5 are connected with the steel support block 6 through foundation bolts, balls are respectively installed on the upper side and the lower side of one end, inserted into first guide holes 2, of the first cement concrete columns 5, the balls can reduce friction force between the first cement concrete columns 5 and the first guide holes 2, the first guide holes 2 are respectively formed in positions, corresponding to the first cement concrete columns 5, of a bridge main body 1 and a steel plate 4, the first guide holes 2 can guide operation of the first cement concrete columns 5, the first springs 7 are inserted outside the circumferential soil columns of the first cement concrete columns 5, the first springs 7 are used as elastic parts to compensate movement amount between the two bridge main bodies 1 caused by thermal expansion and cold contraction, one end of the first cement concrete column 5, which is far away from the steel supporting block 6, is inserted into the first guide hole 2;

referring to fig. 1, wedge-shaped blocks 9 are fixed on two sides of a steel cover plate 8, the wedge-shaped blocks 9 are made of steel, the wedge-shaped blocks 9 can facilitate vehicles to enter the steel cover plate 8, steel columns 11 are installed on two sides and the middle of the lower portion of the steel cover plate 8, the upper ends of the steel columns 11 are connected with the steel cover plate 8 through hinges, the hinges can compensate the amount of exercise of the steel cover plate 8 relative to a bridge main body 1, the steel columns 11 serve as guide columns of second springs 12, second guide holes 10 are formed in positions, corresponding to the steel columns 11, of the upper surfaces of the bridge main body 1 and steel supporting blocks 6, the second guide holes 10 can guide the steel columns 11, the second springs 12 are inserted into the outer portions of the circumference of the steel columns 11, the lower ends of the second guide holes 10 are inserted into the second guide holes 10, and the second springs 12 have elasticity, so that;

referring to fig. 1, a drainage groove 14 is formed in the upper surface of the bridge main body 1, two ends of the drainage groove 14 extend to two sides of the bridge main body 1, and the drainage groove 14 is used for draining water; the first cement concrete column 5 can be used as a main supporting part to support the steel supporting block 6, the two bridge main bodies 1 can be close to or far away from each other due to the effects of expansion with heat and contraction with cold, at the moment, the first spring 7 can be contracted or stretched, and the first cement concrete column 5 is continuously inserted into or slightly far away from the bridge main bodies 1, so that the variation of the bridge main bodies 1 can be adapted, meanwhile, when the bridge main bodies 1 are changed, the second spring 12 cannot be radially bent, but the hinge joint rotates, and the problem of short service life of the second spring 12 can be solved;

when a vehicle enters the steel cover plate 8 through the wedge-shaped block 9, the second spring 12 is compressed, the steel column 11 is continuously inserted into the second guide hole 10, radial bending of the second spring 12 when the vehicle passes through can be avoided, and the second spring 12 is restored to the original position after the vehicle leaves, so that the steel cover plate 8 has elasticity and the vehicle is damped.

The utility model discloses a theory of operation and use flow: in the process of using the device, the first cement concrete column 5 can be used as a main supporting part to support the steel supporting block 6, the two bridge main bodies 1 can be close to or far away from each other under the action of thermal expansion and cold contraction, at the moment, the first spring 7 can be contracted or stretched, and the first cement concrete column 5 is continuously inserted into or slightly far away from the bridge main bodies 1, so that the variable quantity of the bridge main bodies 1 can be adapted, and meanwhile, when the bridge main bodies 1 are changed, the second spring 12 cannot be radially bent but the hinge joint rotates, so that the problem of short service life of the second spring 12 can be avoided;

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement 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 novel bridge expansion joint structure, includes bridge main part (1) and steel cover plate (8), its characterized in that: the concrete bridge is characterized in that the two bridge main bodies (1) are arranged, a gap (13) is formed between the two bridge main bodies (1), steel plates (4) are arranged on one sides, close to each other, of the two bridge main bodies (1), steel supporting blocks (6) are arranged in the middle of the gap (13), first cement concrete columns (5) are arranged on two sides of each steel supporting block (6), first guide holes (2) are formed in positions, corresponding to the first cement concrete columns (5), of the bridge main bodies (1) and the steel plates (4), first springs (7) are inserted into the outer portions of the circumferences of the first cement concrete columns (5), one ends, far away from the steel supporting blocks (6), of the first cement concrete columns (5) are inserted into the first guide holes (2), steel columns (11) are arranged on two sides and the middle of the lower portion of each steel cover plate (8), and the positions, corresponding to the steel columns (11), of the upper surfaces of the bridge main bodies (1) and the steel supporting blocks (6) are all provided The steel column is characterized by comprising two guide holes (10), a second spring (12) is inserted outside the circumference of the steel column (11), and the lower end of the second guide hole (10) is inserted into the second guide hole (10).

2. A novel bridge expansion joint structure according to claim 1, wherein: wedge blocks (9) are fixed on two sides of the steel cover plate (8), and the wedge blocks (9) are made of steel.

3. A novel bridge expansion joint structure according to claim 1, wherein: the bridge main body (1) is connected with the steel plate (4) through the embedded bolts (3).

4. A novel bridge expansion joint structure according to claim 1, wherein: the upper surface of the bridge main body (1) is provided with a drainage groove (14), and two ends of the drainage groove (14) extend to two sides of the bridge main body (1).

5. A novel bridge expansion joint structure according to claim 1, wherein: the first cement concrete column (5) is connected with the steel supporting block (6) through foundation bolts, and balls are mounted on the upper side and the lower side of one end, inserted into the first guide hole (2), of the first cement concrete column (5).

6. A novel bridge expansion joint structure according to claim 1, wherein: the upper end of the steel column (11) is connected with the steel cover plate (8) through a hinged joint.