Prediction method for quasi-static component response of high-rise seismic isolated building under fluctuating wind force
Prediction method for quasi-static component response of high-rise seismic isolated building under fluctuating wind force
复制标题
脉动风力作用下高层隔震建筑准静力构件响应预测方法
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
H. Kitamura
中科院分区：
文献类型：
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作者：
Ryosuke Ogawa;Keisuke Yoshie;Daiki Sato;Toshiaki Sato;H. Kitamura
发明内容 近年来，需要对高层隔震建筑在弹塑性范围内对抗风外力的响应进行评估。在弹塑性响应情况下，会引起中心位移的变化，这种变化像阶跃函数一样在很长的周期内变化。将响应时间历史分为谐振分量和准静态分量并进行检查。从时程分析结果可以验证，变化中心位移的偏移是由共振分量引起的。提出了一种高层隔震建筑在波动风力作用下中心位移引起的准静态构件响应的预测方法。通过与时程分析结果的比较证明了其准确性。
SUMMARY Recently, response evaluation of a high-rise seismic isolated building against the wind external force within elasto-plastic range has been requested. In the elasto-plastic response case, shifts of center displacement which are showing change in very long period like a step-function are caused. The response time history is separated to resonance component and quasi-static component and examined. From the time history analysis results, we could verify that the shift of the change center displacement is caused by the resonance component. This paper proposes a prediction method for quasi-static component response caused by the shifts of center displacement of a high-rise seismic isolated building under the fluctuation wind force. Its accuracy is demonstrated through comparison with time history analysis results.