On-line damage detection on structural sudden degradation subjected to strong earthquake by using Hilbert-Huang transform

摘要：

The on-line damage detection on structural sudden degradation subjected to strong earthquake by using Hilbert-Huang transform (HHT) is actively carried out in this study.A new damage detection approach is developed for detecting the damage time instant,location,and severity of sudden change of structural stiffness.A five-story shear building is taken as an example to numerically assess the effectiveness and reliability of the proposed detection approach for the building at different damage levels.The results indicate that the damage time instant and location in the building due to a sudden loss of stiffness can be accurately identified using the proposed damage approach.

关键词： sudden damage signal discontinuity damage index damage detection

作者: Bo Chen Jin Zheng

作者单位: Key Laboratory of Roadway Bridge and Structural Engineering,Wuhan University of Technology,China Dep Design Institute of Wuhan University of Technology,China

会议类型: 国际会议

会议名称: The 3rd International Conference on Environmental and Engineering Geophysics(第三届环境与工程地球物理国际会议)

会议地点: 武汉

会议语种:英文

页码: 203-206

在线出版日期: 2008-06-15（万方平台首次上网日期，不代表论文的发表时间）