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Novel seismic isolation and reduction device

A new type of vibration reduction and isolation technology, applied to bridge parts, bridges, buildings, etc., can solve energy consumption and other problems, achieve the effect of small damage, durable structure, and increase the difficulty of construction

Pending Publication Date: 2019-10-08
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also some shock-absorbing and isolating devices that directly use friction to do work and consume energy.

Method used

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Experimental program
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Effect test

Embodiment

[0037] Such as figure 1 As shown, the novel shock-absorbing and isolating device includes a first connecting rod 1, an oil cylinder 8, a piston 7, a one-way valve 6, a differential pressure valve 5, a conduit, a second connecting rod 2, a first oil cylinder cavity 3, and a second oil cylinder Cavity 4. Each component has the following connection relationship: the first connecting rod 1 and the piston 7 are integrally structured. The cross-section of the bottom of the first connecting rod 1 suddenly changes to the size of the cross-sectional area of ​​the oil cylinder 8 to form a piston 7; the piston 7 divides the oil cylinder 8 into a first oil cylinder chamber 3 and a second oil cylinder chamber 4.

[0038] The first connecting rod 1 is made of steel. Round holes for hinges are left at the ends for connecting bridge structures. The piston 7 can use other materials to ensure that the oil in the first cylinder chamber 3 and the second cylinder chamber 4 will not pass through...

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Abstract

The invention relates to a novel seismic isolation and reduction device. The device comprises an oil cylinder (8), a working medium with which the oil cylinder (8) is filled, and a first connecting rod (1) and a second connecting rod (2) which are arranged at the two sides of the oil cylinder (8). The bottom of the first connecting rod (1) stretches into the oil cylinder (8) to form a piston (7) to divide the oil cylinder (8) into a first oil cylinder cavity (3) and a second oil cylinder cavity (4), and the first oil cylinder cavity (3) and the second oil cylinder cavity (4) are communicated through a channel composed of a differential pressure valve (5) and an oil tube. Compared with the prior art, due to the fact that the stroke range of the piston inside the oil cylinder is suitable foracting force and deformation under various dead loads, live loads and seismic loads, the stress path is accurate and reliable, the structure is simple, and installation, use and maintenance are easy;a pressure system with a one-way valve is used for achieving the characteristic that only tension is exerted, buckling caused by compression under the seismic effect is effectively avoided, and the seismic isolation and reduction effect is stably and effectively brought into play in the seismic process.

Description

technical field [0001] The invention relates to bridge engineering, in particular to a novel shock absorbing and isolating device. Background technique [0002] The shock-absorbing and isolating devices commonly used in buildings and bridge structures include shock-absorbing and isolating bearings, dampers, etc. Common vibration-absorbing and isolating bearings include lead rubber bearings, high-damping rubber bearings, friction pendulum bearings, etc. Commonly used dampers include steel dampers, fluid viscous dampers, etc. [0003] There are two main working principles of shock absorption and isolation technology: one is that the support usually forms a series structure with the cover beam pier under the upper and upper structure (main girder, etc.) in the structure. The stiffness (post-bending stiffness) of the shock-isolating device itself is small. The overall stiffness of the series structure is close to the small value in value, so that the structural system becomes...

Claims

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Application Information

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IPC IPC(8): E01D19/00
CPCE01D19/00
Inventor 彭天波倪荫豪
Owner TONGJI UNIV
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