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Multifunctional shock absorption and noise reduction type bridge expansion device

A telescopic device and noise-reducing technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problems of reducing the shock-absorbing effect of bridges, lack of shock-absorbing devices, and inability to reduce noise, so as to improve the anti-seismic effect, avoid fracture, The effect of improving the shock absorption effect

Pending Publication Date: 2020-10-30
成都庆坤声学工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing expansion device and the current corresponding bridge expansion joints lack corresponding shock absorbing devices. The vibration formed when the vehicle is running is likely to cause corresponding damage to the bridge. At the same time, it is easy to form corresponding noise when the vehicle passes through the expansion joint. driving environment, and the current corresponding expansion joint damping device has limitations such as that the corresponding structure is not stable enough, and the damping force is not enough to reduce noise; and the rotating comb steel plate of the existing expansion joint is vibrated, causing the rotating comb steel plate When moving towards the fixed comb steel plate, the impurities on the bridge surface will easily fall into the gap between the rotating comb steel plate and the beam body, which will affect the normal movement of the rotating comb steel plate in the horizontal direction, thus reducing the impact of the telescopic device on Damping effect of the bridge

Method used

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  • Multifunctional shock absorption and noise reduction type bridge expansion device
  • Multifunctional shock absorption and noise reduction type bridge expansion device
  • Multifunctional shock absorption and noise reduction type bridge expansion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 1 to Figure 8 As shown, the present invention includes a first beam body 41 and a second beam body 43, a gap is formed between the first beam body 41 and the second beam body 43, the top of the first beam body 41 is provided with a first reserved groove, and the first beam body 41 is provided with a first reserved groove. The top of the second beam body 41 is provided with a second reserved slot, the first reserved slot is provided with a rotating comb-teeth steel plate 36, and the second reserved slot is provided with a fixed comb-teeth steel plate 40 matching the rotating comb-teeth steel plate 36, A displacement assembly 33 is provided in the first reserved groove, and the displacement assembly 33 includes an upper steel plate 2 and a lower steel plate 12, and the upper steel plate 2 is fixed on the bottom of the rotating comb tooth steel plate 36 by a second fixing bolt 34 , between the upper steel plate 2 and the lower steel plate 12, a buffer eleme...

Embodiment 2

[0043] On the basis of Embodiment 1, two support elements 6 are arranged in the rubber seat 7, and the support elements 6 are located on both sides of the movable groove 13. The support elements 6 include a fixed block 21, a second elastic member 24 and The support rod 23, the fixed block 21 is located on the top of the lower steel plate 12, the fixed block 21 is provided with a cavity, the second elastic member 24 is located in the cavity, one end of the support rod 23 is located at the bottom of the upper steel plate 2, and the other end is vertical It is directly inserted into the fixing block 21 and connected with the second elastic member 24 .

Embodiment 3

[0045] On the basis of Embodiment 2, the top of the fixed block 21 is also provided with a connection port communicating with the cavity of the fixed block 21, the diameter of the connection port is smaller than the inner diameter of the cavity of the fixed block 21, and the support rod 23 passes through The connection port extends into the cavity, and both sides of the support rod 23 are provided with limit balls 22 , and the limit balls 22 are located in the cavity of the fixed block 21 .

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Abstract

The invention discloses a multifunctional shock absorption and noise reduction type bridge expansion device. The device comprises an upper steel plate and a lower steel plate, a buffer element and tworubber bases are arranged between the upper steel plate and the lower steel plate; the two rubber bases are located on the two sides of the buffer element correspondingly. The buffer element comprises a first supporting plate and a second supporting plate which have elasticity; the first supporting plate and the second supporting plate are each of an arc-shaped structure. The two ends of the second supporting plate are slidably connected with the bottom of the upper steel plate. The bottom of the second supporting plate makes contact with the top of the lower steel plate. Two strip-shaped openings are formed in the arc-shaped inner wall of the second supporting plate; the two strip-shaped openings are located in the two sides of the axis of the second supporting plate correspondingly. Thetwo ends of the first supporting plate penetrate through the two strip-shaped openings respectively and then are connected with the top of the lower steel plate in a sliding mode, the top of the first supporting plate makes contact with the bottom of the upper steel plate, movable grooves are formed in the end faces, facing the buffering pieces, of the rubber bases, and the two ends of the firstsupporting plate and the two ends of the second supporting plate can slide into the movable grooves.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a multifunctional shock-absorbing and noise-reducing bridge telescopic device. Background technique [0002] The bridge telescopic device is one of the important functional components of the bridge. By installing the telescopic device between the beam end and the beam end of the bridge, between the beam end and the abutment, it can effectively adjust the load caused by the vehicle, the environmental characteristics and the physical properties of the bridge building materials. The structural displacement caused by the performance leads to the problem of bridge damage. The telescopic device should meet the following conditions: fully meet the displacement of the bridge superstructure under the action of external force; must be firm, reliable and durable; be able to resist mechanical wear and collision; ensure smooth and safe traffic; keep. The existing expansion device and the cu...

Claims

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Application Information

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IPC IPC(8): E01D19/06
CPCE01D19/06E01D19/065
Inventor 赖庆国
Owner 成都庆坤声学工程有限公司