限界耐力計算法による木造建物の耐震性能評価における縮約の影響に関する研究

概要

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In the limit proof calculation for wooden structures, the method of conversion is applied to evaluate the seismic performance. In the method of conversion, the displacement modes are used instead of the natural modes of the structure. In this paper, the influence of the use of the displacement modes in the conversion was studied analytically by 2 D.O.F. model. The results of the study will be summarized as follows 1) the use of the displacement mode causes error in the seismic evaluation of a structure that is decreasing rigidity, 2) the change of the displacement mode is decided by the combination of mass or stiffness of each story of a structure, and the change is classified to three patterns, and 3) in the two of the patterns, the use of the displacement mode gives insufficient seismic performance of a structure.
一般社団法人日本建築学会の論文
2008-03-25