異なる復元力特性が混在するハイブリッド構造の許容層間変形角とDs値に関する研究

概要

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Ductility reduction factor Ds used in second phase design is based on the energy constant rule proposed by Newmark. In addition, it is also important to set a story drift limit to the structure on seismic design. Accordingly, allowable story drift and Ds factor are required to consider in design; however, the building code does not specifically address the relationship response. On the other hand, the structure having an origin progress slip response will cumulate the deformation during the seismic event; response deformation will increase lineally with the cycle of earthquake and f value. As a result, the characteristic of input ground motion. In this paper, firstly, Ds factor for the structure shows origin progress slip responses are discussed based on energy method and formula for Ds factor based on cumulative plastic deformation ratio is proposed. Secondly, the relationship between responses are discussed. The results obtained from this research will make it possible to apply through dynamic analysis to second phase design uniformly. Finally, controversial point of current Ds formula is clarified from the comparison study between proposed Ds formula.
社団法人日本建築学会の論文
2008-06-30