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首页> 外文期刊>International Journal of Sustainable Materials and Structural Systems >Resilient isolation-structure systems with super-large displacement friction pendulum bearings
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Resilient isolation-structure systems with super-large displacement friction pendulum bearings

机译：Resilient isolation-structure systems with super-large displacement friction pendulum bearings

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摘要

This paper presents a super-large displacement friction pendulum bearing (SLDFPB) and isolation system with SLDFPB. SLDFPB has one or several spherical shells of large span and large curvature radius as an integrated sliding isolation layer. Superstructure can sustain large horizontal displacement through relative sliding between large spherical shell and sliding blocks. The proposed SLDFPB has two main advantages: 1) avoid damage of isolation layer during super-strong earthquakes owing to large lateral deformation capability; 2) have better isolation effectiveness because of smaller horizontal stiffness and isolation frequency. This study also investigates mechanical property of SLDFPB including equivalent radius and equivalent friction coefficient. Suggested designed method of SLDFPB is given based on seismic mitigation and reset ability of isolation layer. Two isolation structure systems with multi isolation layers are studied. The results show that large ratio of mass and optimised parameters contribute to good control effect.

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