Tension resisting and twisting resisting combined shock isolation device based on linear guide rail

Abstract

The invention provides a tension resisting and twisting resisting combined shock isolation device based on a linear guide rail, and belongs to the technical field of shock absorbing and isolating technique of structural engineering. The device mainly comprises a high-flexibility device (1), a rigid shock isolation pedestal (2) with relatively high rigidity and bearing capacity, a transverse limiting sliding block (3), a transverse shock isolation linear guide rail (4), a longitudinal limiting sliding block (5), a longitudinal shock isolation linear guide rail (6) and a rubber support seat (7). The tension resisting and twisting resisting combined shock isolation device based on the linear guide rail is low in cost, simple in structure, and convenient to construct; each part is clearly divided to bear force; the linear guide rails bear only the vertical load of an upper structure and bring tension resisting capacity, twisting resisting capacity and tumbling resisting capacity; the rubber support seat provides only the horizontal rigidity for the high-flexibility device; with the adoption of such combined shock isolation device, the material performance of each part can be fully utilized; in addition, the shortcoming of poor tension resisting capacity and vertical bearing capacity of the rubber support seat is overcome; the advantages of high tension resisting capacity and twisting resisting capacity, and outstanding effect on shock isolation for bases of the high-flexibility device and a high-flexibility structure are brought.

Description

technical field [0001] The invention belongs to the technical field of shock absorption and isolation in structural engineering, and relates to a roller-type linear guide rail with a small friction coefficient, and two layers of vertical guide rails are arranged on the upper and lower layers, so as to meet the requirements of shock isolation in multiple directions. The rubber bearings that can provide structural rigidity and self-reset the upper structure form a perfect combined shock-isolation device. The invention has low cost, strong tensile, torsion-resistant, overturning-resistant capabilities, outstanding shock-isolation effect, and convenient construction. Background technique [0002] In the field of civil engineering at home and abroad, the seismic isolation technology of medium and low height buildings is approaching maturity. The main technologies include: laminated rubber lead core bearing isolation, friction sliding bearing isolation, rolling isolation, and skat...

AI Technical Summary

Problems solved by technology

However, these current isolation devices at home and abroad have certain limitations, such as: the rubber bearing has low tensile capacity, torsion resistance, and vertical bearing capacity; The strength is low, the dynamic and static friction coefficient, arc shape and other parameters are not easy to determine, and the processing technology is complicated, generally only suitable for buildings with medium and low heights

Aiming at the problems of low vertical stiffness and small damping of rubber bearings, some experts have developed interlayer rubber pads and lead core rubber pads. Although the vertical stiffness and damping of these two isolation devices have been improved, their tensile capacity And torsion resistance has not been improved, it is still not practical for high-rise buildings and some high-flexible structures and equipment

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