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Cost-effective vision-based system for monitoring dynamic response of civil engineering structures

2009; Wiley; Volume: 17; Issue: 8 Linguagem: Inglês

10.1002/stc.360

1545-2263

Yoshio Fukuda, Maria Q. Feng, Masanobu Shinozuka,

Advanced Fiber Optic Sensors

Structural Control and Health MonitoringVolume 17, Issue 8 p. 918-936 Research Article Cost-effective vision-based system for monitoring dynamic response of civil engineering structures Yoshio Fukuda, Corresponding Author Yoshio Fukuda [email protected] Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, U.S.A. Post-doctoral Scholar.Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, U.S.A.Search for more papers by this authorMaria Q. Feng, Maria Q. Feng Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, U.S.A. Professor.Search for more papers by this authorMasanobu Shinozuka, Masanobu Shinozuka Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, U.S.A. Distinguished Professor.Search for more papers by this author Yoshio Fukuda, Corresponding Author Yoshio Fukuda [email protected] Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, U.S.A. Post-doctoral Scholar.Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, U.S.A.Search for more papers by this authorMaria Q. Feng, Maria Q. Feng Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, U.S.A. Professor.Search for more papers by this authorMasanobu Shinozuka, Masanobu Shinozuka Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697, U.S.A. Distinguished Professor.Search for more papers by this author First published: 28 November 2010 https://doi.org/10.1002/stc.360Citations: 108 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract This study develops a cost-effective vision-based displacement measurement system for real-time monitoring of dynamic responses of large-size civil engineering structures such as bridges and buildings. The system simply consists of a low-cost digital camcorder and a notebook computer equipped with digital image-processing software developed in this study. A target panel with predesigned marks is attached to a structure, whose movement is captured by the digital camcorder placed at a fixed point away from the measurement point. The captured images are streamed to the notebook computer and processed by the software to compute displacement in real time. The efficacy of the system in measuring dynamic responses was demonstrated through laboratory tests, seismic shaking table tests on a steel building frame, and a field experiment on a bridge. In order to simultaneously measure displacements of multiple points, this study further developed a time synchronization system, in which TCP/IP protocol is employed for communications. The effectiveness of the time synchronization system was also experimentally verified. The vision-based system developed in this study is simple, cost-effective, easy to install, and capable of real-time measurement of dynamic responses, making the system ideal for monitoring civil engineering structures. Copyright © 2009 John Wiley & Sons, Ltd. Citing Literature Volume17, Issue8December 2010Pages 918-936 RelatedInformation