積戴物が滑動する建築構造物の地震応答

概要

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The design seismic force is determined in proportion to the sum of dead and live loads in usual earthquake resistant design procedure. In case the floor loads are not fixed on the floor, this design practice must be changed. Sliding of floor loads will occur during earthquake excitations, that causes change of frame responses. Moreover, in some cases the floor loads collide against the loads nearby and the movement of loads is restrained by stoppers provided on the floor. These behaviors will also influence on the frame response. In this paper, first, rigorous solutions are derived from the basic equation of motion for a frame model with a block weight unfixed on the floor of the frame. Secondly, for analyses of rather complex frames with sliding blocks, a numerical method is proposed. These analyses are carried out by computer. The preciseness of computed results is proved by the experimental results which have been obtained by shaking table tests on a simple one-story frame model and a three-story frame model with a sliding block on each floor. Finally, response behavior of frames with sliding floor loads during earthquake is compared with the results of the computer analyses.
社団法人日本建築学会の論文
1990-03-25