A combined anti-tension and anti-torsion shock-isolation device with self-resetting function

Abstract

The invention provides a tension resisting and twisting resisting combined shock isolation device with the self-restoring function, 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 supporting pedestal (2), a transverse limiting sliding block (3), a transverse shock isolation linear guide rail (4), a transverse shock absorbing tension spring (5), a transverse shock absorbing tension spring support (6), a layering separating plate (7), a longitudinal limiting sliding block (8), a longitudinal shock isolation linear guide rail (9), a longitudinal shock absorbing tension spring support (10) and a longitudinal shock absorbing tension spring (11). The combined shock isolation device has the advantages that the material performance of each part can be fully utilized; in addition, the shortcoming of poor tension resisting capacity and vertical bearing capacity of a 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. A shock-absorbing extension spring that can provide structural rigidity and self-reset the upper structure forms a perfect combined shock-isolation device. The invention is low in cost, has strong resistance to tension, torsion, and overturning, and has self-resetting function, outstanding shock isolation effect, and convenient construction. Prospects. 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 sl...

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 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, still not suitable for high-rise buildings and some high-flexible structures and equipment

However, the current domestic and foreign research pays more attention to the shock absorption of industrial high-flexibility equipment (alcohol furnace with thin-walled cylindrical structure) and the shock absorption of military high-flexibility equipment (rockets, missiles). Ratio) is very large, generally greater than 10, therefore, the tensile force and overturning force of the base are very large, and the above-mentioned seismic isolation bearings cannot meet the seismic isolation requirements

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