On-Line Damage Identification For Structural Health Monitoring Systems: An US-China Collaborative Research

摘要0554814 Jann N.杨大学加州，欧文本项目旨在开发基于事件响应数据（如地震响应数据）的创新在线损伤检测技术。该研究将克服传统损伤识别方法的不足，推动结构健康监测中损伤识别的发展。所开发的方法将具有以下能力：（1）适用于线性和非线性结构（例如，非线性基础隔震结构），（2）能够使用最少数量的响应数据和激励测量来识别和跟踪结构损伤，（3）能够基于有限元公式来检测局部损伤，以及（4）适用于橡胶支座隔震系统的健康监测。除了理论/数值的发展，实验振动台测试使用小规模和几乎全尺寸的建筑模型，将进行验证的有效性和准确性的新方法开发。最后，将研究所开发的技术应用于建筑物非线性橡胶支座隔震系统的健康监测。这是美国加州大学欧文分校（UCI），中国南京航空航天大学、中国广州大学地震工程研究试验中心根据《中美地震工程与减灾科学技术合作研究议定书》，与台湾国家地震工程研究中心（NCREE）合作。本文的研究将对结构健康监测系统损伤检测技术的发展产生重要影响

ABSTRACT 0554814Jann N. YangUniv. California, IrvineThis project aims at the development of innovative on-line damage detection techniques based on the event response data, such as the seismic response data. This research will overcome the drawbacks of traditional techniques and advance the state-of-the-art of on-line damage identification for structural health monitoring. The developed methodologies will have the following capabilities: (1) applicable to linear and non-linear structures (e.g., non-linear base-isolated structures), (2) capable of identifying and tracking the structural damages using a minimum number of response data and excitation measurements, (3) capable of detecting local damages based on finite element formulation, and (4) applicable to the health monitoring of rubber-bearing isolation systems. In addition to the theoretical/numerical development, experimental shake table tests using small-scale and almost full-scale building models, will be conducted to verify the effectiveness and accuracy of the new methodologies developed. Finally, applications of the developed techniques to the health monitoring of non-linear rubber-bearing isolation systems for buildings will also be investigated.This is a collaborative research among the University of California at Irvine (UCI), U.S.A., the Nangjing University of Aeronautics and Astronautics (NUAA), PRC, the Earthquake Engineering Research & Test Center (EERTC), Guanzhou University, P.R.C. and the National Center for Research on Earthquake Engineering (NCREE), Taiwan, under the US-China Protocol for Scientific and Technical Cooperative Research on Earthquake Engineering and Hazard Mitigation. The research proposed herein will have a significant impact on the state-of-the-technology in damage detections for the structural health monitoring system