球面すべり支承を用いた機器免震装置に関する研究 : 第1報,免震支持された系についての振動実験と応答解析

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During the last few years, as we enter a new era of a high-level information-oriented society, the number of buildings having multiple functions has been increasing. Seismic isolation technology can protect not only the structural elements of a building but also its primary function from destructive earthquake motion. It is with such background that many types of earthquake isolation floors or systems have already been developed and have spread throughout in Japan. Almost all isolation floors/systems developed with especially for critical equipment such as computer systems so far consist of coil springs to provide equipment a designed natural frequency and energy-absorbing devices such as friction dampers and oil dampers. However, these types of earthquake isolation floors or systems may become expensive although they perform satisfactorily. The friction pendulum bearings developed in this program can solve this problem. This device consists of an articulated friction slider which moves on a spherical concave surface and provides the supported equipment with a designed frequency obtained by a radius of curvature and gravity. The articulated friction slider dissipates energy as a friction damper. In this paper we conducted shaking table tests and theoretical analysis in order to investigate the performance of isolation and the restoring force characteristics of the earthquake isolation system using the friction pendulum bearings.
社団法人日本機械学会の論文
1993-01-25

球面すべり支承を用いた機器免震装置に関する研究 : 第1報,免震支持された系についての振動実験と応答解析

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