非単調な変位応答スペクトル特性を有する複数の設計用入力地震動に対する建築構造物の性能指定設計

概要

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The purpose of this paper is to propose a new stiffness design method for shear buildings subject to design earthquakes with non-monotonic displacement spectra. An objective function is introduced by a combination of the fundamental natural period representing 'cost index1 and the level of maximum displacements representing 'performance index'. This objective function is used for finding an optimum set of story stiffness under response constraints. Introduced is an enveloping design spectrum that envelops the specified design spectra. An inverse problem formulation is utilized for finding the stiffness such that the shear building would exhibit maximum interstory drifts proportional to specified ones under design earthquakes compatible with the enveloping design spectrum. Several design examples and time-history analyses are performed to demonstrate the validity and the accuracy of the proposed design method.
社団法人日本建築学会の論文
2003-07-30