積層ゴムで支持した塔状免震建物の終局挙動に関する振動台実験

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This paper describes results of shaking table tests on ultimate behavior of high aspect ratio base-isolated buildings. In the tests, a base-isolated structure model weighing 192kN supported by 4 laminated rubber bearings was used. The aspect ratio of superstructure (4 or 6), and shape and axial stress of a laminated rubber bearing were set for experimental parameter. The results of tests indicate that the ultimate behavior of base-isolated buildings are roughly classified into two types; one is caused by buckling fracture of rubber bearings and the other is caused by tensile fracture of rubber bearings. These types are dependent on relationship between lateral restoring characteristics of base-isolated story and static ultimate lateral force by uplift of superstructure.
社団法人日本建築学会の論文
2006-07-30