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Earthquake identification type anti-impact support

An earthquake identification and anti-shock technology, which is applied in buildings, bridge construction, bridges, etc., can solve the problems that the second-level block is easily damaged by impact, bears a large impact load, and has no stiffness, so as to avoid being damaged by impact, Reduce the impact load and reduce the effect of impact

Pending Publication Date: 2022-08-09
CHENGDU XINTU TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide an earthquake-recognized anti-shock support to solve the problem of a non-rigid slippage between the first-level and second-level limit protection structures in the existing two-level seismic-resistant spherical steel support area, after the first-level limit protection structure fails, the second-level stopper needs to bear a large impact load, and the second-level stopper is easily damaged by the impact

Method used

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  • Earthquake identification type anti-impact support
  • Earthquake identification type anti-impact support
  • Earthquake identification type anti-impact support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] like figure 1 As shown in the figure, this embodiment proposes an earthquake identification type impact-resistant bearing, which includes an upper bearing plate 1, a spherical crown lining plate 2, and a lower bearing plate 3 arranged in sequence from top to bottom. The upper bearing plate 1 A spherical sliding plate 4 is arranged between the spherical crown lining plate 2 and the spherical sliding plate 4 is located in the groove on the upper support plate 1 , and between the spherical sliding plate 4 and the spherical crown lining plate 2 A rotating pair is formed, a flat sliding plate 5 is arranged between the spherical crown lining plate 2 and the lower support plate 3, and the flat sliding plate 5 is located in the stop on the spherical crown lining plate 2. The lower bearing plate A mirror-surface stainless steel plate 6 is fixed on the plate 3 , and the mirror-surface stainless steel plate 6 and the flat sliding plate 5 form a sliding pair.

[0063] The upper su...

Embodiment 2

[0073] The difference between this embodiment and Embodiment 1 is:

[0074] like figure 2 As shown, both the first chamber 11 and the second chamber 12 are provided with a fluid material member 14, and the fluid material member 14 includes an oil bag filled with a fluid buffer material. The oil bag was squeezed and ruptured. The fluid buffer material is wrapped with an oil bag design to avoid loss under normal conditions. The fluid buffer material is silicone oil, hydraulic oil and the like.

[0075] The pressing plate 16 is provided with a first drain hole 18, and the first drain hole 18 is communicated with the first chamber 11; the outer block 9 is provided with a second drain hole 19, so The second drain hole 19 communicates with the second chamber 12 . The first drainage hole 18 is used to communicate the first chamber 11 with the outside of the block, and the second drainage hole 19 is used to communicate the second chamber 12 with the outside of the block. It is c...

Embodiment 3

[0078] The difference between this embodiment and Embodiment 2 is:

[0079] like image 3 As shown in the figure, the elastic material member 13 is arranged in the first chamber 11, and the fluid material member 14 is arranged in the second chamber 12; in this embodiment, the two materials are combined and arranged in the In the first chamber 11 and the second chamber 12, in this embodiment, since the elastic material member 13 is arranged in the first chamber 11, there is no need to open the first row Orifice 18.

[0080] Of course, the fluid material member 14 may also be arranged in the first chamber 11 , and the elastic material member 13 may be arranged in the second chamber 12 . The chamber in which the elastic material member 13 is provided does not need to be provided with a drain hole, and the chamber in which the fluid material member 14 is provided may be provided with a drain hole correspondingly.

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Abstract

The invention relates to the technical field of bridge supports, and aims to solve the problems that in an existing two-stage anti-seismic spherical steel support, a non-rigidity sliding area is formed between a first-stage limiting protection structure and a second-stage limiting protection structure, after the first-stage limiting protection structure fails, a second-stage stop block needs to bear a large impact load, and the service life of the second-stage stop block is affected. In order to solve the problems that a first-stage check block is easy to be damaged by impact and a second-stage check block is easy to be damaged by impact, the earthquake identification type anti-impact support is provided, an inner check block and an outer check block are arranged on two sides of a lower support plate in the upward direction of a transverse bridge, and the inner check block is positioned between an upper support plate and the outer check block; a shear pin is connected between the inner stop block and the lower support plate; a cavity is formed between the inner check block and the outer check block, and a buffering piece is contained in the cavity. The buffer piece is arranged between the inner check block and the outer check block, so that a non-rigidity sliding area is not formed between the inner check block and the outer check block, the buffer piece can absorb and absorb a part of earthquake energy, the impact load on the outer check block is reduced, and the safety performance of the bridge structure is improved.

Description

technical field [0001] The invention relates to the technical field of bridge bearings, in particular, to an earthquake identification type anti-shock bearing, which is used in the Shanghai-Chongqing-Gao-Rong high-speed railway north branch bridge project on the Yangtze River. Background technique [0002] At present, the large horizontal force bearings used in bridge engineering are basically the first-class seismic type, that is, according to the horizontal bearing capacity requirements proposed by the design, a stop is set on each side of the lower bearing plate of the bearing. The blocks are consolidated with the upper support plate to withstand horizontal loads. Once the horizontal force generated by accidental factors such as earthquakes exceeds the ultimate bearing capacity of the block, the block will be sheared and the horizontal restraint structure will be lost. There is a cable to pull the beam body), which is extremely unfavorable for arch bridges and simply sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04E01D19/00
CPCE01D19/046E01D19/00
Inventor 梅新咏刘海亮傅战工胡辉跃刘成张应龙廖贵星骆明成孙立山易莉帮周子明张启帆
Owner CHENGDU XINTU TECH