Guide rail type anti-drawing high-damping rubber shock insulation support

Abstract

The invention discloses a guide rail type anti-drawing high-damping rubber shock insulation support. A high-damping rubber support body is arranged in the middle position of upper and lower connection plates, and the high-damping rubber support body and the upper and lower connection plates are fixed together through integral vulcanization; two arc slideways are symmetrically arranged at the edges of the upper and lower connection plates, and the space between the two arc slideways is not totally sealed; two steel balls are embedded in the slideways of the upper and lower connection plates and are connected through a steel rod in a welding mode. The guide rail type anti-drawing high-damping rubber shock insulation support meets the requirement of one-way shearing deformation of buildings and bridges under the effect of normal loading, and can meet different seismic performance requirements due to its rigidity and damping characteristics. Especially in rarely met earthquakes, the guide rail type anti-drawing high-damping rubber shock insulation support has an anti-drawing property and can resist vertical pulling force. The guide rail type anti-drawing high-damping rubber shock insulation support is simple in structure, strong in vertical bearing capacity, big in horizontal displacement, good in durability, strong in anti-drawing capability and applicable to one-way horizontal shearing building structures with high vertical anti-drawing property requirements.

Description

technical field [0001] The invention relates to a shock-absorbing and isolating support device for bridges, buildings and other structures, in particular to an anti-pull high damping rubber shock-isolating support. Background technique [0002] When building bridges, buildings, and other large structures in earthquake areas, in order to reduce the potential earthquake threat, it is necessary to carry out seismic design for such structures. Among them, adopting seismic isolation design is one of the effective ways to reduce the earthquake damage of structures. Seismic isolation technology is to place the entire upper structure on a less rigid seismic isolation layer. The seismic isolation layer has sufficient vertical stiffness and vertical bearing capacity, can stably support the building, and can reduce the transmission of seismic energy to the upper part. And it has enough flexible horizontal stiffness to ensure that the basic period of the building is extended to about 1-...

AI Technical Summary

Problems solved by technology

[0006] Due to the low vertical bearing capacity and poor durability of rubber bearings, they cannot be used alone in long-span bridges, high-rise buildings and large structures with heavy superstructures.

Due to the single friction surface of the friction pendulum system, its stiffness and damping characteristics cannot be changed during the movement of the support, and it cannot resist pulling force and has no self-adaptability, so the scope of application is limited

Especially under strong earthquakes, the amplitude of horizontal displacement is limited, and it is difficult to ensure the large displacement of structures under strong earthquakes

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