摘要
利用结构动力参数的改变对空间钢网架进行损伤分析,其中许多指标对损伤并不敏感.文中通过结构有限元分析软件AN SY S得到网架结构位移模态分析数据,采用杆件轴向应变变化率的模态分析技术针对不同损伤状况的钢结构网架进行损伤识别,能够较为准确地诊断出网架杆件的损伤位置.
Some of the damage indices are insensitive to the structural damage when using dynamic parameters changing for damage diagnosis of truss structure. Based on the modal analysis data of the displacement of the spatial grid structure getting by the structural finite element analysis software ANSYS, the modal analysis technology of the axial member straining rate is used to identify the damage of the spatial grid steel structure in different damaged conditions and is found to be able to accurately position the damaged places of the spatial grid member.
出处
《武汉理工大学学报（交通科学与工程版）》
2006年第2期285-288,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
建设部强制标准修订项目资助(批准号:建标[002]84)
