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介绍了一种基于结构动力特性的大型结构安全监测系统。建议的方法用一大跨桥梁的模型试验和数值分析进行了验证。试验中有三个关键环节 :( 1 )用于建立结构基本构形的有限元模型 ;( 2 )使方案最经济的最佳传感器位置 ;( 3)结构损伤鉴定。分析并解决了试验过程中的各种问题 ,并围绕这些问题给出合理建议。
A large-scale structural safety monitoring system based on structural dynamic characteristics is introduced. The proposed method is validated using a large span of bridge model tests and numerical analysis. There are three key aspects of the experiment: (1) the finite element model used to establish the basic configuration of the structure; (2) the best sensor position to make the most economical solution; and (3) structural damage identification. Analyze and solve various problems in the process of testing, and give reasonable suggestions around these problems.