Influence of soil-structure interaction on pounding response of adjacent buildings due to near-source earthquakes
Influence of soil-structure interaction on pounding response of adjacent buildings due to near-source earthquakes
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DOI：
10.2208/journalam.5.543
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发表时间：
2002-08
期刊：
影响因子：
--
通讯作者：
N. Chouw
中科院分区：
文献类型：
--
作者：
N. Chouw
提出了一种分析地基上相邻建筑物对地震的撞击反应的数值方法。随后在拉普拉斯和时间域中对土-结构体系进行了非线性计算。相邻建筑物和地基分别用有限元和边界元描述。数值研究中考虑了神户、北岭和集集近源地震的影响。结果表明，地震动中的地基脉动和长周期脉动都会增加建筑物的撞击势。此外，敲击会放大地板的诱发振动。相反，土-结构相互作用对诱发振动有减振作用。为了估计防止碰撞所需的距离，土-结构相互作用的影响是显着的。
A numerical approach to analyse pounding responses of adjacent buildings on subsoil to earthquakes is presented. The nonlinear calculation of the soil-structure system is performed subsequently in the Laplace and the time domain. The adjacent buildings and the subsoil are described by finite elements and boundary elements, respectively. In the numerical investigation the effect of Kobe, Northridge and Chi-Chi near-source earthquakes is considered. The result reveals that both the subsoil and long-period pulses in the ground motions can increase the pounding potential of buildings. In addition, poundings can amplify the induced floor vibrations. In contrast, soil-structure interaction has reduction effect on the induced vibrations. In order to estimate the distance required to prevent pounding the influence of the soil-structure interaction is significant.