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The contribution of cord rotations to structural response in the near-field
Soil Dynamics and Earthquake Engineering ( IF 4 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.soildyn.2020.106351
M.D. Trifunac , R.S. Jalali , M.I. Todorovska , H. Bazeghi Kisomi

Abstract The response of structures with large plan dimensions depends on the wave motion beneath their extended or multiple foundations. In addition to translational components of motion, which are different at the base of each column, or at different points of large foundations, point rotations at the base of individual foundations—as well as cord rotations between adjacent column foundations—all contribute to the overall response. The response contribution from all these components of motion becomes particularly significant in the vicinity of moving faults, in which near-field terms in the wave motion contribute large pulses and large permanent ground displacements. In this work, we examine the relative significance of point and cord rotations in an idealized representation of a structure excited by fault normal pulse d F ( t ) and fault parallel displacement d N ( t ) .

中文翻译:

绳索旋转对近场结构响应的贡献

摘要 大平面尺寸结构的响应取决于其扩展或多重基础下的波浪运动。除了在每根柱子的底部或在大地基的不同点处不同的运动平移分量之外,单个地基底部的点旋转——以及相邻柱子基础之间的绳索旋转——都有助于整体回复。所有这些运动分量的响应贡献在移动断层附近变得特别重要,其中波动中的近场项贡献大脉冲和大的永久地面位移。在这项工作中,
更新日期:2020-12-01
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