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Seismic response of nonstructural components in case of nonlinear structures based on floor response spectra method

机译：基于地板响应谱法的非线性结构非结构构件的地震响应

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This paper investigates the response of nonstructural components in the presence of nonlinear behavior of the primary structure using floor response spectra method (FRS). The effect of several parameters such as initial natural frequency of the primary structure, natural frequency of the nonstructural components (subsystem), strength reduction factor and hysteretic model have been studied. A database of 164 registered ground acceleration time histories from the European Strong-Motion Database is used. Results are presented in terms of amplification factor and resonance factor. Amplification factor quantifies the effect of inelastic deformations of the primary structure on subsystem response. Resonance factor quantifies the variation of the subsystem response considering the primary structure acceleration. Obtained results differed from precedent studies, particularly for higher primary structure periods. Values of amplification factor are improved. Obtained results of resonance factor highlight an underestimation of peak values according to current design codes such as Eurocode 8. Therefore a new formulation is proposed.
机译：本文利用地板响应谱法（FRS）研究了在主要结构存在非线性行为的情况下非结构性组件的响应。研究了诸如主结构的初始固有频率，非结构性组件（子系统）的固有频率，强度折减系数和滞后模型等几个参数的影响。使用来自欧洲强运动数据库的164个已注册地面加速时间历史记录的数据库。结果以放大因子和共振因子表示。放大因子量化了主结构的非弹性变形对子系统响应的影响。考虑主要结构加速度，共振因子可量化子系统响应的变化。获得的结果与先例研究不同，特别是在较高的一级结构时期。放大因子的值得到改善。根据当前的设计规范（例如欧洲规范8），共振因子的获得结果突出了对峰值的低估。因此，提出了一种新的公式。

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