32 地盤との動的相互作用が中間層免震構造物の地震時挙動に及ぼす影響

概要

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In this paper, seismic behaviors of inter-story isolated building structures considering soil-structure interaction are estimated through numerical simulations. Transfer functions are defined on soil-foundation boundary around the sway and rocking motions. Parametric investigations of inter-story isolation effects are executed using shear wave velocity, various cases of isolation floors and natural period of structures without isolation apparatus as parameter. Response measurement is arrayed in maximum shear force responses, maximum response accelerations and maximum displacement responses under serious earthquake motion. Moreover, to verify soil-structure interaction effects, complex eigen value analysis are used. As a result, it is assured that, the lower structure below the isolated story is affected by soil-structure interaction and inter-story isolation system composes different soil-structure interaction system for the ordinary buildings structures.
一般社団法人日本建築学会の論文
2005-03-20