CN218436602U

CN218436602U - Bridge anti-seismic support

Info

Publication number: CN218436602U
Application number: CN202122785815.3U
Authority: CN
Inventors: 胡思聪; 陈佳宾; 李奔; 刘一豪
Original assignee: Nanchang University
Current assignee: Nanchang University
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2023-02-03
Anticipated expiration: 2031-11-15

Abstract

The utility model relates to a bridge beam supports engineering technical field provides a bridge anti-seismic support, including bottom plate and roof, there is the second fixed orifices on the floor, fixed surface is connected with the limiting plate on the floor, fixed surface is connected with the dog on the floor. The lower surface of the top plate is fixedly connected with a shade, and the top plate is provided with a first fixing hole. The limiting plate is internally embedded with a first damping block, a second damping block, a third damping block, a fourth damping block and a fifth damping block. This bridge antidetonation anticorrosion support passes through the limiting plate, the dog, it is first, the second, the third, fourth and fifth snubber block, the shade, current antidetonation damping device has been solved, there is great relative displacement in the structure still about the buffer layer, this kind of effect is more obvious in the macroseism, the rigidity that causes the bridge easily damages and takes place to fall and carries out absorbing rubber support in the dangerous problem of roof beam and the antidetonation connection structure and expose the outside usually, cause rubber support's corrosion problem easily because of the rainwater that drips along the bridge.

Description

Bridge anti-seismic support

Technical Field

The utility model relates to a bridge engineering technical field refers in particular to a bridge anti-seismic support.

Background

Traffic is a prerequisite for development, and with the continuous development of infrastructure in China, the traffic construction in China is also continuously expanded, and for the convenience of traffic, highway bridges can be constructed in some special sections, so that various problems which need to be solved urgently can be met in the bridge construction. Because China is a country with frequent earthquakes, whether a bridge structure can resist damage caused by the above reasons under the accidental load action of earthquakes, strong wind and the like also becomes a more concerned subject; the bridge support is an important structural component for connecting an upper structure and a lower structure of a bridge, is positioned between the bridge and a pad stone, can reliably transfer load and deformation (displacement and corner) borne by the upper structure of the bridge to the lower structure of the bridge, is an important force transfer device of the bridge, and has various types, such as spherical supports, plate-type rubber supports, basin-type rubber supports and the like.

At present, the bridge support has some problems, firstly, the rubber support for damping in the anti-seismic connecting structure usually exposes outside, so that the rubber support is easy to corrode due to rainwater dropping along the bridge, and the service life of the rubber support is shortened. Secondly, the structure still has great relative displacement about the buffer layer in current antidetonation damping device, and in the macroseism, this kind of effect is more obvious, causes the rigidity damage of bridge and takes place the danger that falls the roof beam easily, and current antidetonation device is corroded easily, and the service life reduces greatly. And when the anti-seismic support is in anti-seismic, if the anti-seismic support meets large vibration, the support is easy to incline, so that the bridge collapses and is damaged. Finally, the support is often directly cast by concrete, and the problems of incapability of reducing vibration, weak shock resistance, incapability of resisting overturning and low safety exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an antidetonation anticorrosion bridge beam supports for mention current antidetonation damping device in solving above-mentioned background, the structure still has great relative displacement about the buffer layer, and in strong shake, this kind of effect is more obvious, causes the rigidity damage of bridge and takes place to fall the dangerous problem of roof beam easily. The second purpose lies in solving and carrying out the rubber support of shock attenuation among the antidetonation connection structure and exposing the outside usually, easily causes the problem of the corruption of rubber support because of the rainwater that drips along the bridge. The third purpose is to solve the problem that the support is easy to incline to cause the collapse of the bridge when the anti-seismic support is in anti-seismic and meets large vibration.

In order to realize the purpose, the utility model provides the following technical scheme:

the utility model discloses a bridge anti-seismic support, which comprises a bottom plate and a top plate, wherein four corners of the top plate are provided with first fixing holes, four corners of the bottom plate are provided with second fixing holes, the bottom of the top plate is fixed with a cover, the bottom plate is fixed with a limiting plate in a square frame shape, the bottom of the cover is connected with the top of the limiting plate, and the width of the cover is greater than that of the limiting plate;

four corners of the inner side of the limiting plate are respectively provided with a first damping block, a second damping block, a third damping block and a fourth damping block, the bottoms of the first damping block, the second damping block, the third damping block and the fourth damping block are fixedly connected with the upper surface of the bottom plate, and the middle of the limiting plate is provided with a fifth damping block;

a winding column is arranged inside the first damping block, the second damping block, the third damping block and the fourth damping block, and a damping spring is sleeved outside the winding column;

the fifth damping block is of a hollow cylindrical structure, and multiple layers of thin steel sheets are arranged inside the fifth damping block in the vertical direction.

And a stop block is arranged between the upper surface of the bottom plate and the outer wall of the limiting plate and is uniformly and symmetrically distributed around the limiting plate in a right-angled triangle structure.

The bottom of the fifth damping block is fixed to the upper surface of the bottom plate through a cushion block, the cushion block is of a square structure, and the width of the cushion block is not smaller than the outer diameter of the fifth damping block.

Compared with the prior art, the utility model has the advantages of as follows:

fixed surface seamless connection limiting plate and dog on the bottom plate, the even symmetric distribution of dog is around the limiting plate, roof fixed connection shade evenly covers the limiting plate comprehensively, first fixed orifices evenly distributed is on four angles of roof, the second fixed orifices evenly distributed is on four angles of bottom plate under first fixed orifices, first snubber block, second snubber block, third snubber block and fourth snubber block evenly distributed are in the inside four corners of limiting plate, and four snubber block inner structure are twining the winding post for damping spring, fifth snubber block passes through cushion and the fixed seamless connection of limiting plate, is located the limiting plate positive centre, the thin steel sheet of fifth snubber block inner structure multilayer. Compare in traditional bridge beam supports, this bridge antidetonation anticorrosion support through setting up the shade, can reduce the rainwater to rubber support's corruption, has solved current bridge beam supports and has corroded easily, the problem that life shortens greatly. Through setting up limiting plate and dog, can reduce vibrations, improve the security performance. Through setting up five snubber blocks, solved current antidetonation damping device, the structure still has great relative displacement about the buffer layer, and in the macroseism, this kind of effect is more obvious, causes the rigidity damage of bridge and takes place to fall the roof beam dangerous problem easily.

Drawings

Fig. 1 is a schematic view of a bridge seismic support structure.

Fig. 2 is a disassembly schematic view of a bridge earthquake-proof support structure.

Fig. 3 is a schematic view of the internal structure of the first, second, third and fourth damping blocks in the anti-seismic bridge support.

Fig. 4 is a schematic diagram of an internal structure of a fifth damping block in an anti-seismic bridge support.

In the figure: the damping device comprises a first fixing hole 1, a top plate 2, a shade 3, a limiting plate 4, a stop block 5, a second fixing hole 6, a bottom plate 7, a first damping block 8, a second damping block 9, a third damping block 10, a fourth damping block 11, a fifth damping block 12, a cushion block 13, a winding column 14, a damping spring 15 and a thin steel sheet 16.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the drawings of the bridge bearing and the detailed description thereof.

Referring to fig. 1-4, including roof 2 and bottom plate 7, there is first fixed orifices 1 on roof 2, surface fixed connection has shade 3 under roof 2, limiting plate 4 is connected to shade 3 below, fix on limiting plate 4 through setting up shade 3, effectively solve and carry out the absorbing rubber support among the antidetonation connection structure and expose the outside usually, easily because of the problem that the rainwater that drips along the bridge caused the corruption of rubber support, surface fixed connection limiting plate 4 on the bottom plate 7, bottom plate 7 upper surface and limiting plate fixed connection dog 5 all around, there is second fixed orifices 6 on the bottom plate 7, first snubber block 8, second snubber block 9, third snubber block 10 and fourth snubber block 11 evenly distributed are in the inside four corners of limiting plate 4, four snubber block inner structure are winding post 14 for damping spring 15 winding, fifth snubber block 12 passes through cushion 13 and bottom plate 7 top fixed seamless connection, is located the positive centre of limiting plate 4, the 12 inner structure multilayer thin 16 of fifth snubber block. Can reduce vibrations through setting up limiting plate 4, snubber block and dog 5, improve the security performance, solve current antidetonation damping device, the structure still has great relative displacement about the buffer layer, and in the macroseism, this kind of effect is more obvious, causes the rigidity damage of bridge and takes place to fall the roof beam dangerous problem easily.

The utility model discloses a theory of operation is:

during the use, through first fixed orifices 1, second fixed orifices 6, with this preparation fixed bridge bottom and pier top, through dog 5 fixed limiting plate 4, prevent that the limiting plate from taking place the displacement because of vibrations, through 3 fixed connection of shade in the limiting plate top, prevent the rainwater corruption, when the bridge receives external force vibrations, cushion and eliminate vibrations through the snubber block.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A bridge antidetonation support which characterized in that: the device comprises a bottom plate (7) and a top plate (2), wherein first fixed holes (1) are formed in four corners of the top plate (2), second fixed holes (6) are formed in four corners of the bottom plate (7), a shade (3) is fixed to the bottom of the top plate (2), a limiting plate (4) in a square frame shape is fixed to the bottom plate (7), the bottom of the shade (3) is connected with the top of the limiting plate (4), and the width of the shade (3) is larger than that of the limiting plate (4);

four corners of the inner side of the limiting plate (4) are respectively provided with a first damping block (8), a second damping block (9), a third damping block (10) and a fourth damping block (11), the bottoms of the first damping block (8), the second damping block (9), the third damping block (10) and the fourth damping block (11) are fixedly connected with the upper surface of the bottom plate (7), and the middle of the limiting plate (4) is provided with a fifth damping block (12);

winding columns (14) are arranged inside the first damping block (8), the second damping block (9), the third damping block (10) and the fourth damping block (11), and damping springs (15) are sleeved outside the winding columns (14);

the fifth damping block (12) is of a hollow cylindrical structure, and a plurality of layers of thin steel sheets (16) are arranged in the fifth damping block along the vertical direction;

and a stop block (5) is arranged between the upper surface of the bottom plate (7) and the outer wall of the limiting plate (4), and the stop blocks (5) are in right-angled triangle structures and are uniformly and symmetrically distributed around the limiting plate (4).

2. An anti-seismic bridge support according to claim 1, wherein: the bottom of the fifth damping block (12) is fixed to the upper surface of the bottom plate (7) through a cushion block (13), the cushion block (13) is of a square structure, and the width of the cushion block is not smaller than the outer diameter of the fifth damping block (12).