A novel shaking table substructure testing method that includes interaction forces determined by actuator forces and shaking table dynamic parameters is proposed and validated. The seismic performance of a storage tank that incorporates soil-structure interactions is investigated by the method proposed in this article. The experimental results show that the proposed shaking table substructure testing method is an efficient alternative method of evaluating the seismic performance of a storage tank that incorporates soil-structure interactions. The experimental results show that the influence of the soil-structure interactions increases as the stiffness of the foundation soil decreases, which was demonstrated by the results showing that the displacement and acceleration responses of the storage tank decrease as the stiffness of the foundation soil decreases. Moreover, the influence of the soil-structure interactions increases as the liquid height increases, which was illustrated by the decreased displacement responses of the storage tank with increases in the liquid height. The maximum acceleration response of the storage tank occurred at the liquid surface height.

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考虑土-结构相互作用的结构抗震评价振动台子结构试验方法

提出并验证了一种新的振动台子结构测试方法，该方法包括由致动器力和振动台动态参数确定的相互作用力。本文提出的方法研究了包含土壤-结构相互作用的储罐的抗震性能。实验结果表明，所提出的振动台子结构测试方法是一种评估包含土-结构相互作用的储罐抗震性能的有效替代方法。试验结果表明，土-结构相互作用的影响随着地基土刚度的降低而增加，结果表明，随着地基土刚度的降低，储罐的位移和加速度响应会降低。此外，土壤-结构相互作用的影响随着液体高度的增加而增加，这可以通过储罐的位移响应随着液体高度的增加而减少来说明。储罐的最大加速度响应发生在液面高度处。