在分析原有几种抗震试验方法的基础上,提出了一种新的“混合试验方法”的设想。这种方法将振动台试验与拟动力试验结合起来,以期解决原有试验方法在大型、异型结构抗震研究中遇到的困难。本文基于子结构模态综合法对结构抗震混合试验技术进行了初步研究,提出了将整体结构划分为试验子结构和分析子结构,采用对接加载主模态修正方法对试验子结构进行质量矩阵和刚度矩阵局部修正,并给出了连接边界的加载模式。
Based on the analysis of some seismic test method, a new tentative idea about"Hybrid Test" is proposed. The method of combining shaking table test with pseudo dynamic test may be hoped to solve the difficulties met in the previous research of the large scale or special shaped structures. In this paper, based on modal synthesis techniques, the hybrid seismic test method of structure was studied preliminary. It is suggested that the structure may be divided into test substructure and analysis substructure, but the mass and stiffness matrix of test structure should be modified, and the load model for the boundary was also derived.