多层框架结构远程协同拟动力试验方法研究

Remotely Collaborative Pseudo-Dynamic Testing Method for MDOF Frame Structure

针对国际土木结构试验的网络化发展的趋势,研究了多层剪切型结构模型的远程协同拟动力试验方法,建立了任意选取层子结构时整体结构的动力方程,通过分析三层房屋结构不同的子结构选取方式来研究试验子结构边界条件的模拟.为了验证该试验方法,进行了四层框架结构的远程控制拟动力试验.通过两种不同的子结构选取方式进行对比分析,试验结果表明,本文提出的试验方法是可行的,也为异地不同的实验室之间同时进行数个子结构的多层房屋结构的远程协同拟动力试验提供了可能.

Aiming at the networked development of structural testing internationally, a method for testing substructures in a Multiple-Degree-of-Freedom System of shear type frame in remotely collaborative pseudo-dynamic tests was discussed, and the equations of motion in choosing testing substructures at will were derived. The simulation of the boundary condition of the substructures was carried out by analyzing a three-story building under different schemes of selecting substructures. In order to validate the above method, several pseudo-dynamic tests of a four-story frame under remote control were carried out. Contrasting the two different dividing ways of substructures, the experiments demonstrate the feasibility and viability of the method, which is helpful for the possibility of developing technologies for collaborative structural experiments, allowing two or more laboratories at geographically different locations to jointly conduct a test in a collaborative manner via Internet.