パッシブ型制震構造物の等価線形化による応答解析法

概要

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This paper presents a response analysis method for the structures with both of elast-plastic dampers and viscous ones by a pseudo-modal analysis. The method is based on the equivalent linearized system introduced by expressing the effect of elasto-plastic dampers as an equivalent stiffness with complex numbers. The dynamic properties are judged on the bases of the eigen value problem for the equivalent system, that is, the fact that the sum of the two eigenvalues of a SDOF system with complex stiffness expresses the effect of viscous damping and the product of them indicates the effect of hysteretic damping. The response analyses for two cases are conducted by making use of the presented modal analysis method. This paper shows that the results presented by the modal analysis have a good agreement with the ones derived from step by step time history analysis.
社団法人日本建築学会の論文
2001-04-30