多層弾塑性構造物の地震レスポンス

Abstract

Recently, earthquake response analyses of the elasto-plastic multi-story building structureshave been studied by us using an analog computer. In this paper, the basic response diagramsfor the five degrees of freedom structural system with the bi-linear hysteretic characteristicsare presented for the basis of an aseismic design. Taking into consideration the effects ofthe wave shape function of earthquake excitations and the ratio of the rigidity of the secondbranch to that of the first branch in the hi-linear hysteretic characteristics to the earthquakeresponses and the optimum dynamic characteristics of the elasto-plasmic multi-story structuralsystem, the formulas of the base shear coefficient and the fundamental natural period areproduced for the aseismic design of the tall building structure.