基于静力应变的新型空间结构损伤诊断数值研究

A Numerical Study of Damage Identification for A New Spatial Structure Based on Static Strain

国内外基于动力模态参数的损伤识别研究虽然进行了很多年,但在大跨度空间结构领域,这方面的研究进展却十分缓慢,主要是由于空间结构的模态密集特性所导致,因此,基于静力的损伤识别方法近年来又重新被提出。本文以新型大跨度空间结构为主要研究对象,从荷载和结构两方面,利用两者之间的函数关系,研究基于静力统计荷载分级的大跨度空间结构损伤诊断方法。

Damage identification based on modal parameter are studied so many years at home and abroad.However,in the field of large-span space structure,the development of study goes very slowly for its spectrum dense characteristics.Therefore,the damage identification method based on static force are put forward again.The National Aquatics Center is taken as the main research contents of this paper.The damage identification method for large-span space structure based on static statistics and multi-stage loads are studied by using its function relation in both load and structure.