多層偏心建築物における等価1自由度系の地震応答特性と高次モード応答の予測

概要

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Two methods of reducing a single-story asymmetric building under uni-directional earthquake motion to the equivalent single degree of freedom (ESDOF) system, the static and dynamic methods, had been proposed by the authors to improve the capacity spectrum method used in the calculation of response and limit strength provided in the Building Standard Law Enforcement Order of Japan. Both methods are extended to apply for multi-story asymmetric buildings in this paper. For four types of 4 story RC buildings with different eccentricity by arranging multi-story shear walls, the validity of the methods is examined with the earthquake response characteristics of the ESDOF system. An evaluation method of the earthquake response for multi-sotry asymmetric buildings considering the higher mode effect is also proposed.
2007-06-30