90007828

open access

Version of Record

力積を用いた時刻歴応答解析による免震建物の衝突時応答評価

Japanese (日本語)

構造工学論文集 B

66B

295-304

日本建築学会

2020-03

2021-04-01

The objective of this study is to examine the impact response of the base-isolated buildings during a collision with retaining wall using a shaking table and to evaluate it by impulse input analysis. In this paper, the impulse which was input to the first floor during a collision was focused. First, the collision test results showed that the increase of the response of the superstructure during a collision was affested by the impulse input to the first floor. Second, the numerical simulation using as the impulse was carried out. The results of impulse analysis showed good agreement with the test results. Finally, response composite wave was investigated by superimposing the time histories of the impact response wave (damped free vibration wave) and seismic response wave in a case without collision. The response composite waves could give the high reproducibility of the experimental results, and the maximum value of floor accelerations and relative story displacement could also accurately estimate. The usefulness of this analytical method can be emphasized in the possibility to predict the response of the superstructure during a collision without using collision analysis.

Impulse input analysis

学術雑誌論文