Dynamic Characteristic Analysis of Mega-Sub Controlled Structure with Friction Pendulum Bearings

Abstract:

A novelty configuration of tall building structure, so-called mega-sub controlled structure (MSCS) with friction pendulum bearings (FPBs), which is featured by the FPBs at the bottom of sub-structures, is studied. The seismic responses of the MSCS with FPBs are carried out. The effects of the radius of the sliding surface and friction coefficient on structural dynamic characteristic indices, i.e. energy, acceleration, story displacement, story shear force, are analyzed. A performance comparison is made with the conventional MSCS. The results show that the MSCS with FPBs exhibits a better vibration-control effect than conventional MSCS. The controlling effectiveness of structure with radius of 500mm and 1500mm is better than that with radius of 1000mm and 2000mm. As the friction coefficient increase, the dynamic behaviors of structure tend to increase.

• Periodical: Advanced Materials Research (Volumes 926-930)
• Pages: 550-556
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.926-930.550
• Online since: May 2014
• Authors: Chang Xia*, Da Bao Fu, Bin Huang, Li Ying Liu
• Keywords: Bidirectional Seismic Responses, Dynamic Characteristic, Friction Pendulum Bearing, Mega-Sub Controlled Structure

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