Steel damping composite sliding plate rubber support and damping method thereof

Abstract

The invention relates to a steel damping composite sliding plate rubber support, and belongs to the technical field of bridge engineering damping. The steel damping composite sliding plate rubber support comprises an upper support plate, a lower support plate and a sliding plate rubber support body. The sliding plate rubber support body is located between the upper support plate and the lower support plate. The two ends of longitudinal steel damping elements and the two ends of transverse steel damping elements are connected to the upper support plate and the lower support plate in a spaced mode, the two centrosymmetric ends of the transverse steel damping elements are arranged in transverse sliding chutes in the upper support plate through sliding bolts, and the other ends of the longitudinal steel damping elements and the other parts of the transverse steel damping elements are fixed through fixing bolts. Elasticoplastic deformation happens to additional longitudinal steel damping elements and transverse steel damping elements due to the fact that the additional longitudinal steel damping elements and transverse steel damping elements suffer from large loading, certain resistance is provided through the deformation, a part of seismic energy is consumed, and the damping purpose is achieved. The support is simple in structural type, clear in operating principle, more attractive in appearance and more convenient to install.

Description

technical field [0001] The invention relates to a novel bridge slide rubber bearing structure and a damping method thereof, in particular to a slide rubber bearing with quantitatively designed lateral stiffness and a damping method thereof, which belong to the technical field of bridge engineering damping. Background technique [0002] At present, the existing technology in the field of bridge engineering shock absorption technology mainly applies the principle of friction force and the principle of friction combined with stoppers to achieve the purpose of shock absorption, such as the prior art (application number 201020062560.7) high damping vibration isolation plate rubber bearing , to increase the horizontal displacement resistance through friction, which requires high performance of the friction material. Improper use will cause small friction and large slippage, making the damping performance of the rubber bearing unable to play; in addition, due to the pier Affected b...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing technology in the field of bridge engineering shock absorption technology mainly applies the principle of friction force and the principle of friction combined with stoppers to achieve the purpose of shock absorption, such as the prior art (application number 201020062560.7) high damping vibration isolation plate rubber bearing , to increase the horizontal displacement resistance through friction, which requires high performance of the friction material. Improper use will result in small friction and large slippage, making the damping performance of the rubber bearing unable to play; in addition, due to the pier Influenced by factors such as uneven settlement of the platform, pressure deviation often occurs, and cracking and aging phenomena caused by stress concentration after pressure deviation are common, affecting the normal use function and life of bridge supports

Especially in high seismic intensity (E2), it is difficult to achieve the seismic effect required by the design

Images