RC造ピロティ形式建物の制振補強手法に関する研究

概要

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The first story collapse of R/C building with soft first story is one of the characteristic damage by the Hyogoken-Nanbu Earthquake. A large deformation occurs in the soft first story which almost absorbs input energy, and to control the large deformation is necessary. In this paper, the seismic response control method for R/C building with soft first story is proposed, where it is thought that the presentation of seismic response control criteria for SDOF, which has a general characteristics, is rational and simple. This paper deals with the validity about conversion of the R/C building with soft first story into the equivalent SDOF and the design method to apply equivalent SDOF to decision of requisite damper strength to control a large deformation of first story. As a result, it is shown that maximum deformation of R/C buildings and the equivalent SDOF approximately has a good relation by using equivalent SDOF which has same yielding period and yielding base shear coefficient for R/C building with soft first story. The estimation method of requisite damper strength to control a large deformation of first story is applicable to R/C building with soft first story.
社団法人日本建築学会の論文
2003-01-30