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首页> 外文会议>ASME(American Society of Mechanical Engineers) Pressure Vessels and Piping Conference vol.8: Seismic Engineering; 20050717-21; Denver,CO(US) >ROTATIONAL COMPONENTS OF SEISMIC MOTION BASED ON SURFACE WAVE
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ROTATIONAL COMPONENTS OF SEISMIC MOTION BASED ON SURFACE WAVE

机译：基于表面波的地震运动旋转分量

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摘要

In this paper, the appropriate methods are presented to obtain the seismic rotational components caused by the arrival of the surface waves applying the theory of elastic wave propagation. The rocking component around a horizontal axis and the torsional component around a vertical axis are generated respectively by the Rayleigh and Love waves. At the same time, the calculation formulations of phase velocities about these waves with frequent dispersion are derived and introduced to the rotational components, which may be more suitable for engineering practice. A procedure is developed to compute the time histories. Finally, numerical results have shown that the rotational motions have more energy than the translatonal motions in high frequent range by using the given methods.
机译：本文采用弹性波传播理论，提出了适当的方法来获得由表面波的到来引起的地震旋转分量。绕水平轴的摇摆分量和绕垂直轴的扭转分量分别由瑞利波和洛夫波产生。同时，推导了这些频散频散的波的相速度计算公式，并将其引入旋转分量，可能更适合工程实践。开发了一个过程来计算时间历史。最后，数值结果表明，通过使用给定的方法，旋转运动比高频率范围内的经横扫运动具有更多的能量。

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