Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7997
Title: Damage detection in simply supported concrete bridge structure under moving vehicular loads
Authors: Zhu, XQ
Law, SS
Keywords: Bridge
Damage detection
Dynamics
Force identification
Moving load
Nonlinearity
Regularization
Reinforced concrete
Shape function
Surface roughness
Vehicle
Issue Date: 2007
Publisher: Asme-Amer Soc Mechanical Eng
Source: Journal of vibration and acoustics, Transactions of the ASME, 2007, v. 129, no. 1, p. 58-65 How to cite?
Journal: Journal of Vibration and Acoustics, Transactions of the ASME 
Abstract: A method for damage detection of a simply supported concrete bridge structure in time domain is presented using the interaction forces from the moving vehicles as excitation. The vehicular loads are modeled as a group of vehicle-bridge interaction forces moving at a prescribed velocity, and the bridge is modeled as an Euler-Bernoulli beam simply supported at both ends. A damage function is used to simulate the crack damage in the reinforced concrete beam. The vehicle-bridge interaction forces and the structural damage in the bridge deck are identified from the measured responses in sequence of iteration without prior knowledge of the moving loads. The effects of parameters of the vehicle-bridge system and measurement noise on the damage detection result are studied Simulation results show that the method is effective and noise insensitive to damage detection in the concrete bridge structure under moving vehicular loads.
URI: http://hdl.handle.net/10397/7997
DOI: 10.1115/1.2202150
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