A combined shock-isolation bearing of curved surface hinge sliding friction-roller rolling friction

Abstract

The invention discloses a curved surface hinged sliding friction-roller rolling friction combination isolation bearing. The isolation bearing comprises an upper bearing plate, a middle sliding plate, a lower bearing plate, a slider and a roller, wherein the slider is placed between the upper bearing plate and the middle sliding plate; the roller is placed between the middle sliding plate and the lower bearing plate. The isolation bearing is characterized in that the upper surface of the upper bearing plate is a plane; the lower surface of the upper bearing plate is concave; the middle sliding plate is positioned between the upper bearing plate and the lower bearing plate; the upper surface of the middle sliding plate is concave; the lower surface of the middle sliding plate is a double-slope bevel; the top surface and the bottom surface of the lower bearing plate both are planes; the slider is arranged between the upper bearing plate and the middle sliding plate; the roller is a cylinder. The isolation bearing disclosed by the invention has the advantages that the bearing has small friction in the rolling direction of the roller, and the friction can be adjusted; a hinged bearing provides large yield force in another horizontal direction. The isolation bearing integrates the advantages of a rolling friction bearing and a sliding friction bearing, and the functions of prolonging the construction period, dissipating earthquake energy and reducing construction earthquake response are realized.

Description

technical field [0001] The invention relates to a building and bridge structure shock-isolation bearing, in particular to a curved-surface hinge sliding friction-roller rolling friction combined vibration-isolation bearing. Background technique [0002] Earthquake is one of the common disasters on the earth, which often causes the collapse of buildings and bridge structures, and has a significant impact on economic and social development. Simply relying on improving the stiffness of structures to resist earthquake disasters is not only uneconomical, but also may increase the seismic force, which cannot really achieve the purpose of earthquake resistance. The introduction of seismic isolation technology in the seismic design of buildings and bridge structures can enable the isolation device to achieve the purpose of prolonging the structural period, consuming seismic energy, and reducing structural response under the premise of meeting the functional requirements of normal us...

AI Technical Summary

Problems solved by technology

[0006] The rolling friction bearing adopts roller rolling to resist the horizontal earthquake force. After the earthquake, it needs to have self-resetting ability to help the bearing return to its original position and reduce the residual displacement after the earthquake; Large displacement of the support is not expected, so other measures must be taken to increase the friction force, improve the energy dissipation capacity, and control the displacement of the structure under the normal load; the horizontal yield force of the simple rolling friction support is too low to meet the structural design requirements. needs, it is necessary to consider taking certain measures to increase its horizontal yield force

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