APPLICATION OF CURVATURE MODE TO DAMAGE IDENTIFICATION

摘要：

The advantages and shortcomings of curvature mode for damage detection in frame structures is discussed using frame structure as an example. With different locations and degrees of damages considered in columns based on numerical simulation, an improved modal assurance criterion is proposed. Damage location can be detected more accurately and reasonably by simultaneously using both methods. And the result indicates that the first curvature mode is an excellent parameter used as the input vector. Finally, the proposed damage detection method is verified by using modal test of a small scale model of steel frame with two stories, and the result of damage detection using the proposed method is shown to be fairly effective.

关键词： damage identification curvature mode shape modal assurance criterion modal experiment

作者: Yong-Feng Du Dong-Bing Zhang

作者单位: Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou 730050, P.R. China

会议类型: 国际会议

会议名称: 第二届国际结构状态评估、监测与改进会议(The Second International Conference on Structural Condition Asessment,Monitoring and Improvement)

会议地点: 长沙

会议语种:英文

页码: 1469-1473

在线出版日期: 2007-11-19（万方平台首次上网日期，不代表论文的发表时间）