地震模拟振动台阵系统模型试验方法探讨

Study on model experimental methodology utilizing the multiple earthquake simulation shake table system

地震模拟振动台阵系统是国际上振动台试验研究和发展的方向,国内外科研单位和高校陆续引进地震模拟振动台阵系统,为拓展工程结构抗震研究空间、深化研究理论提供试验手段,特别是对于大跨度桥梁、生命线工程、大型机电设备等长线结构及大跨空间结构的抗震性能研究起到促进作用。由于可以同时提供多点地震激励作用,振动台阵系统试验的理论和方法不同于传统的单台振动台试验;通过振动台阵系统试验的模型设计与制作、地震波的选择和再现、试验步骤和震害观察与分析等几个方面对台阵试验方法进行了分析和探讨,并指明今后台阵试验方法的发展趋势。为振动台阵试验方法和试验理论的形成奠定基础,促进结构抗震试验理论和试验方法的发展。

Multiple shake table testing system（MSTS）is an important prospect for seismic performance research in structural engineering,especially for seismic performance studies for large span bridge engineering,lifeline engineering,large mechanical equipment,spatial structure and so on.Due to the capability of multiple earthquake excitations,the methodology and theory of the MSTS are different from that of single shake table test.Model construction and design,earthquake wave selection and recurrence,experimental process and earthquake damage analysis were discussed and the prospective methodology in using MSTS pointed out.This serves as a theoretical foundation for the methodology of using MSTS and would promote the development of the theory and methodology in studying the seismic performance of structures.