A C-shaped cylindrical shell self-resetting shock-absorbing shock-isolation damping device

Abstract

The invention discloses a shock-absorbing and isolating device with a self-resetting function, comprising: an upper steel plate, a lower steel plate, a C-shaped opening cylindrical shell steel plate, and a cylindrical lead rod, wherein the upper and lower steel plates are equal in size and both adopt a rectangular form; a lead rod Located in the center of the square steel plate, the other four lead rods are evenly distributed around the rectangular steel plate; the C-shaped opening cylindrical shell steel plate is evenly distributed in a ring; when an earthquake occurs, the device dissipates energy through the plastic deformation of the lead rods, and at the same time passes The strain energy accumulated in the C-shaped opening cylindrical shell steel plate realizes the self-resetting function, which can not only achieve the shock isolation effect of the shock isolation device, but also prevent the overturning of the upper structure, thereby ensuring the safety of the upper main structure under earthquake action; the present invention uses The all-metal design method has good durability, simple structure and good tensile performance, which is conducive to market promotion and application.

Description

technical field [0001] The invention belongs to the technical field of shock absorption and shock absorption of buildings, and in particular relates to a C-shaped cylindrical shell self-resetting shock absorption shock isolation and damping device. Background technique [0002] A seismic isolation device is installed between the building and the foundation to form a seismic isolation building, which can prolong the natural vibration period of the structure, increase the structural damping, and reduce the transmission of seismic energy to the upper building, thereby achieving the purpose of reducing the damage of the building. [0003] At present, the shock-absorbing and isolating devices used at home and abroad mainly include ordinary rubber bearings, lead-rubber bearings, friction-slip shock-isolating devices, etc., but there are certain limitations. Ordinary rubber bearings have small damping, insufficient energy consumption, and large horizontal displacement during work, ...

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Problems solved by technology

Therefore, the processing requirements for the rubber formula and the support are high. When the shear deformation resistance and self-recovery of the rubber are insufficient, the upper structure often produces excessive horizontal displacement, which easily leads to the instability of the support, and does not have the ability to prevent overturning and improve the stability of the support. tensile properties

The friction-slip isolation device only relies on frictional energy consumption. Excessive displacement during an earthquake may damage the original limiter. At the same time, a reset mechanism needs to be installed, which is difficult and expensive to construct.

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