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

摘要0554814扬州北洋大学。加州，欧文该项目旨在开发基于地震响应数据等事件响应数据的创新在线损伤检测技术。本研究将克服传统损伤识别技术的不足，为结构健康监测的在线损伤识别技术的发展提供新的思路。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)能够基于有限元描述来检测局部损伤；以及(4)适用于橡胶支座隔震系统的健康监测。除了理论/数值方面的发展外，还将利用小比例和几乎全比例的建筑模型进行试验性振动台试验，以验证所开发的新方法的有效性和准确性。这是美国加州大学欧文分校、中国南京航空航天大学、中国广州大学地震工程研究与试验中心、中国广州大学和台湾国家地震工程研究中心在美国-中国地震工程与减灾科学技术合作研究协议下的一项合作研究。本文提出的研究将对结构健康监测系统的损伤检测技术现状产生重大影响。

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