Peer-Reviewed Journal Details
Mandatory Fields
McGetrick, Patrick J. and Kim, Chul-Woo and Gonz\'alez, Arturo and OBrien, Eugene J.
2015
January
Experimental validation of a drive-by stiffness identification method for bridge monitoring
Published
()
Optional Fields
14
4
317
331
An experimental investigation is carried out to verify the feasibility of using an instrumented vehicle to detect and monitor bridge dynamic parameters. The low-cost method consists of the use of a moving vehicle fitted with accelerometers on its axles. In the laboratory experiment, the vehicle-bridge interaction model consists of a scaled two-axle vehicle model crossing a simply supported steel beam. The bridge model also includes a scaled road surface profile. The effects of varying the vehicle model configuration and speed are investigated. A finite element beam model is calibrated using the experimental results, and a novel algorithm for the identification of global bridge stiffness is validated. Using measured vehicle accelerations as input to the algorithm, the beam stiffness is identified with a reasonable degree of accuracy.
http://shm.sagepub.com/content/early/2015/03/31/1475921715578314.abstract http://shm.sagepub.com/cgi/doi/10.1177/1475921715578314
10.1177/1475921715578314
Grant Details
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