免震建物の限界アスペクト比の解析 : その1:漸化式型線形解析に基づく積層ゴムの軸方向変形簡易解析法

概要

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The purpose of this paper is to propose a simple analysis method of axial deformation of base-isolation rubber bearings and present its applicability to the analysis of the bound of the aspect ratio of base-isolated buildings. The bound of the aspect ratio of base-isolated buildings is analyzed based on the relationship of the following four quantities; (i) ultimate state of uplift of rubber bearings based on a proposed recursive linear analysis, (ii) ultimate state of drift of base-isolation story, (iii) ultimate state of compressive axial stress of rubber bearings under dead loads, (iv) prediction of overturning moment at the base under design earthquakes. A new recursive linear analysis method of axial deformation of rubber bearings is presented and it is shown that there exists an optimal size of rubber bearings to attain the maximum allowable aspect ratio.
一般社団法人日本建築学会の論文
2008-03-25