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中文摘要：
土-结构动力相互作用的研究已经持续了100多年，取得了大量理论研究成果，但受试验设备和试验方法的限制，试验研究还很欠缺。土-结构动力相互作用的整体分析法是将土和结构同时作为试验对象，其对试验设备尺寸和输出荷载要求较高，目前只能进行大比例缩尺试验，即便如此，对于桥梁等长大型结构在多维多点地震作用下的性能的试验，目前的试验设备也无能为力。近年来得到发展的实时子结构实验方法的优点就是能够在现有实验条件下对工程结构中关键部分进行足尺实验，该方法为实现多维多点土-结构动力相互作用混合试验提供了可能。本文以九子台模拟地震振动台台阵为设备基础，将土模型作为数值子结构，结构物作为物理子结构，研究考虑土-结构动力相互作用的多维多点混合抗震试验方法。
英文摘要：
Interaction of soil-structure （SSI） has been investigated for more than one hundred. Numerous theoretical results were acquired, but there is a scarcity of experimental research, due to the deficiency of test facility and techniques. Both the soil and the structures are specimen in the holistic method, so that the size and force/power of the test facility are very demanding. Only large scaled model test can be accomplished using holistic method at present. Even though, holistic method is helplessness to the shake table tests of largespan structure, such as bridge, latticed shells and so on, under muhi-dimensional and multi-support excita- tions. Substructure method still rests on the theory research stage, no testing method about it reported. The dynamically sub structured system （DSS） method is proposed in recent years allowing juts one critical element （or elements） of the overall system to be investigated at full size, with the remainder being run in parallel as a real-time simulation, it makes it possible for interaction of soil-structure hybrid testing method by substructure method to come true. This paper presents the implementing of a novel DSS method based on the shaking table array, in which interaction of soil-structure （DSS-SSI） can be considered under multi-dimensional and multi-support excitations.
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