Pulling-resistant frictional oscillating support for seismic reduction and isolation

Abstract

The invention discloses a pulling-resistant frictional oscillating support for seismic reduction and isolation and relates to the seismic reduction technique of bridges. The pulling-resistant frictional oscillating support for seismic reduction and isolation comprises an upper support plate, an upper sliding plate, a middle sliding plate, a lower sliding plate, a lower support plate, upper L-shaped baffles and lower [-shaped baffles. The upper end of each upper L-shaped baffle is fixed at the outer edge of the upper support plate, the lower end of each lower [-shaped baffle is fixed at the outer edge of the lower support plate, the lower end of each upper L-shaped baffle is sleeved into the corresponding lower [-shaped baffle so that a pulling-resistant function is achieved, the upper L-shaped baffles and the lower [-shaped baffles can move freely along the movement direction of the support, and rubber buffer materials are filled between each upper L-shaped baffle and the corresponding lower [-shaped baffle. The pulling-resistant frictional oscillating support for seismic reduction and isolation has the advantages that the upper support plate, the upper sliding plate, the middle sliding plate, the lower sliding plate and the lower support plate form four sliding friction pairs which have sliding radiuses and friction factors respectively so that the support has high sliding displacement capability; and the upper L-shaped baffles are mutually engaged with the corresponding lower [-shaped baffles, and the rubber buffer materials are filled between each upper L-shaped baffle and the corresponding lower [-shaped baffle, so that the support has a pulling-resistant function.

Description

technical field [0001] The invention relates to the technical field of shock absorption of bridges, and relates to an anti-pull type friction pendulum type shock absorption and isolation support. Background technique [0002] The traditional seismic design of bridge structures mainly relies on the strength and deformation of the bridge structure itself to resist earthquakes, which usually results in a large amount of seismic energy being transferred from the ground to the structure, which is less economical. In recent years, in order to improve the seismic performance of the structure, a large number of shock-absorbing and isolating bearings have been used at home and abroad to extend the natural vibration period of the structure, reduce the seismic energy transmitted to the upper structure, play a role in seismic isolation and energy consumption, and achieve good economic benefits . [0003] At present, the seismic isolation bearings used on bridges at home and abroad main...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an anti-pull type friction pendulum type shock-absorbing and isolating bearing to solve the defects of the prior art such as limited sliding displacement, lack of pull-out resistance, inability to classify anti-seismic fortifications, and unsatisfactory shock-absorbing and isolating effects.

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