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本文研究了单层偏心厂房的平动-扭转耦联地震反应.建立了考虑屋盖整体空间工作时的地震反应运动方程,并进行了分析,讨论.指出在包含有地震动转动分量作用时,地震动各运动分量独立作用的迭加原理和动力反应分析的振型分解法已不再适用.本文在不计地震转动分量的前提下,对单层偏心厂房的平扭耦联地震反应进行了大量的计算及对比分析,结论是:考虑屋盖变形后的计算结果能更好地解释地震破坏现象,并指出了不考虑屋盖变形的适用范围.
In this paper, the translation-torsional coupled seismic response of a single-pile eccentric factory is studied. The equation of motion for earthquake response considering the whole space of the roof is established, analyzed and discussed. It is pointed out that when the action of the rotational component of the ground motion is included, The superposition principle for the independent action of ground motions and the vibration mode decomposition method for dynamic response analysis are no longer applicable. In this paper, the torsional coupled seismic response of a single-pile eccentric building was extensively calculated without considering the seismic rotation components. The calculation and comparison analysis show that the calculation result after considering the deformation of the roof can better explain the seismic damage phenomenon and point out that the applicable range of roof deformation is not considered.