期刊
STRUCTURE AND INFRASTRUCTURE ENGINEERING
卷 10, 期 3, 页码 328-345出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/15732479.2012.754773
关键词
bridge health monitoring (BHM); bridge-vehicle interaction; pseudo-static damage identification; element stiffness index; moving vehicle; laboratory experiments
资金
- Japan Society for the Promotion of Science [19656112, 20560443]
- National Science Council, Taiwan [NSC 100-2917-I-564-052]
- Grants-in-Aid for Scientific Research [23656289, 19656112, 20560443, 12F02369] Funding Source: KAKEN
This paper investigated the feasibility of the pseudo-static damage identification method derived from a bridge-vehicle interaction system through a moving vehicle laboratory experiment. The element stiffness index, defined as the ratio of flexural rigidity of a damaged member to that of an intact member, serves as the damage indicator. Three vehicle models and two travelling speeds were considered in the experiment to examine the effect of vehicle's dynamic characteristic and travelling speed on identified results. It is demonstrated that locations and severities of damages are detectable using the proposed method in spite of the probable changes of roadway roughness and environmental conditions. In addition, adopting higher vehicle speed as well as the vehicle with frequency close to that of the bridge increased the probability of detecting damages.
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