Damage detection in simply supported concrete bridge structure under moving vehicular loads

Xinqun Zhu, SS Law

    Research output: Contribution to journalArticle

    75 Citations (Scopus)

    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.
    Original languageEnglish
    Pages (from-to)58-65
    JournalJournal of Vibration and Acoustics
    Volume129
    Issue number1
    DOIs
    Publication statusPublished - 2007

    Fingerprint Dive into the research topics of 'Damage detection in simply supported concrete bridge structure under moving vehicular loads'. Together they form a unique fingerprint.

    Cite this