基于静动态的空间组合结构损伤识别方法  

Damage identification method for spatial composite structures based on static and dynamic analysis

作　　者：杨浩 罗帅 Yang Hao;Luo Shuai(School of Civil Engineering,Shaoxing University,Shaoxing 312000,China)

机构地区：[1]绍兴文理学院土木工程学院,浙江绍兴312000

出　　处：《工程抗震与加固改造》2020年第2期142-146,161,共6页Earthquake Resistant Engineering and Retrofitting

基　　金：浙江省教育厅科研计划项目(Y201840061)。

摘　　要：杆梁组合结构是实际工程中典型的组合结构。针对复杂空间杆梁组合结构中节点耦合的问题,基于平面单元的理论原理,根据关联表法建立空间组合结构的单元和整体刚度矩阵的关系。为了提高对空间结构的损伤识别精度,在静态分析的基础上,采用静态应变与动态振型向量结合的方式,利用关联表提出一种新的损伤识别方法。通过具体算例的损伤数值模拟,验证新方法的优越性。The link-beam composite structure is a typical composite structure in practical engineering.In view of the complex problem of node coupling in the finite element analysis of space composite structure,based on the theory of plane element and using the method of space vector,the relationship between element and global stiffness matrix of spatial composite structures is set up according to the link table table.In order to improve the accuracy of damage identification for space structures,based on link table and staticanalysis,a new damage identification method is presented,which combines staticstrain with dynamic mode vector.The result shows that the new way is superior through an example damage simulation.

关 键 词：空间组合结构 损伤识别 应变 关联表 

分 类 号：TU317[建筑科学—结构工程]