鉄骨2階建て非免震住宅と免震住宅の実大振動台実験による構造特性検証

概要

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Seismic performance of a two-story house implemented with a seismic isolation device, recently increased in number, was studied based on a shaking table test, followed by comparison with an ordinary house of same type without seismic isolation. The seismic isolation adopted in this test is a steel bearing shoe system, each composed of steel ball bearing system on a very shallow cone with an open angle as 177degrees and oil dampers. In one house, six bearing shoes and four oil dampers were installed. First, a series of shaking table test was performed to investigate the fundamental characteristic of a seismically isolated house with finishing and furniture in it and then, a shaking table test was done for an ordinary house without seismic isolation. In case of the houses with the seismically isolated device, the response was limited within 200cm/s^2 against 90cm/s PGV input of JMA Kobe. And comparison was made to clearly see the differences between the two houses with respect to their seismic performance, and it is confirmed that the seismic isolation has highly improved the structural performance as well as the safety of living space.
一般社団法人日本建築学会の論文
2006-03-20