基于静力相似的缩尺拟动力试验方法数值模拟研究

The numerical simulation of pseudo-dynamic test method for scale model based on the static similar condition

以静力相似理论为基础,提出一套缩尺模型拟动力试验方法。该方法仅对试验模型施加参数及反馈参数进行相似处理,操作简单,概念清晰,能方便地应用于拟动力试验。利用Matlab和Open Sees混合编程方法,对一个两层单跨框架结构的缩尺模型进行基于静力相似的拟动力试验数值模拟,通过将缩尺模型拟动力试验数值模拟的结果与足尺模型的结果进行对比分析,验证所提出方法的正确性和可行性。

Based on the static similarity theory, this paper presents the pseudo-dynamic test method for the scale model. The presented method, which only translates similarly the loading and feedback parameters of the experimental model during the test, is convenient to apply to the pseudo-dynamic test because it is easy to operate and comprehend. This paper mainly simulates the pseudo dynamic test for scale model which is a two layer of single span frame structure by hybrid programming using the Matlab and Open Sees software. The numerical comparison results of pseudo dynamic test between the scale model and the full-scale model verify the correctness and feasibility of the presented method in this paper.