Bound of earthquake input energy to building structure considering shallow and deep ground uncertainties
Bound of earthquake input energy to building structure considering shallow and deep ground uncertainties
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DOI：
10.1016/j.soildyn.2015.05.011
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发表时间：
2015-10
影响因子：
4
通讯作者：
M. Taniguchi;I. Takewaki
中科院分区：
文献类型：
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作者：
M. Taniguchi;I. Takewaki
通过考虑浅、深层地面不确定度和土-结构相互作用，明确了地震输入能量对建筑结构的影响范围。用一维波动传播理论描述了浅层和深部地面运动的放大。无论土体性质如何，摇摆模型相对于自由场地面输入的恒定输入能量特性被有效地用来导出一个界限。充分利用上述输入能量恒定的性质，将以往的工程基岩地面运动理论推广到地震基岩上的一般地震动模型。数值算例表明，对于浅部和深部不确定度，可以得到地震输入能量的严密界。
The bound of earthquake input energy to building structures is clarified by considering shallow and deep ground uncertainties and soil–structure interaction. The ground motion amplification in the shallow and deep ground is described by a one-dimensional wave propagation theory. The constant input energy property to a swaying–rocking model with respect to the free-field ground surface input regardless of the soil property is used effectively to derive a bound. An extension of the previous theory for the engineering bedrock surface motion to a general earthquake ground motion model at the earthquake bedrock is made by taking full advantage of the above-mentioned input energy constant property. It is shown through numerical examples that a tight bound of earthquake input energy can be derived for the shallow and deep ground uncertainties.