Tension-compression-resistant multi-frequency shock absorption and isolation cylindrical surface friction pendulum support

Abstract

The invention discloses a tension-compression-resistant multi-frequency shock absorption and isolation cylindrical surface friction pendulum support which comprises an upper pendulum, an upper pendulum sliding plate, an upper pendulum fastener, a rotating body, a rotating sliding plate, a lower pendulum fastener, a lower pendulum sliding plate and a lower pendulum which are sequentially arranged.The upper pendulum and the lower pendulum are arranged in a staggered manner; two flanges I are arranged on the two sides of the lower surface of the upper pendulum in the length direction of the upper pendulum. Limiting plates I matched with the flanges I are arranged on the two sides of the upper surface of the upper pendulum fastener; an annular limiting bulge is arranged on the edge of the lower surface of the upper pendulum fastener; an annular limiting protruding strip is arranged on the edge of the upper surface of the lower pendulum fastener, the annular limiting protrusion is matchedwith the annular limiting protruding strip, two flanges II are arranged on the two sides of the upper surface of the lower pendulum in the length direction of the lower pendulum, and limiting plates II matched with the flanges II are arranged on the two sides of the lower surface of the lower pendulum fastener. Under the normal condition, the functions of limiting and corner turning in the horizontal longitudinal bridge direction and the horizontal bridge direction are achieved; seismic mitigation and isolation and post-earthquake automatic reset functions are realized during an earthquake; the tension-compression-resistant multi-frequency shock absorption and isolation cylindrical surface friction pendulum support has the functions of tension resistance and torsion inhibition in the wholeoperation process.

Description

technical field [0001] The invention belongs to the technical field of buildings and bridge structures, and in particular relates to a cylindrical surface friction pendulum bearing of multi-frequency anti-tension and anti-shock isolation. Background technique [0002] Building tension can be regarded as the overturning force caused by horizontal seismic load or wind load and the upward force of vertical seismic vibration exceeding the self-weight of the structure. Buildings using seismic isolation technology, especially those with large height-to-width ratios or light-weight space structures, when subjected to earthquakes or wind loads, the overturning moment will cause a large column tension, which is prone to overturning instability question. Twisting of buildings is also one of the main factors causing damage. The most fundamental point to ensure the stability of the building under torsion is how to guide the building to move in a predetermined horizontal direction to r...

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Problems solved by technology

It meets the requirements of normal use of buildings and bridge structures under non-seismic conditions, and has the functions of seismic isolation, tension resistance and torsion suppression during earthquakes, so as to solve the problems existing in existing buildings and bridge seismic isolation bearings

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