A method for identifying damage in a truss bridge under normal traffic loads is developed. The static-based method uses only strain measurements at a few degrees of freedom as input to the identification procedure. In this paper, damage in the structure is modeled as a reduction in the cross-section area of the damaged element. The identification problem is formulated as a constrained optimization one, which is solved by using a genetic algorithm (GA). The objective function is defined as the difference between the measured static strains and the analytically predicted strains obtained from a finite element model. By minimizing the objective function, the damage location and damage severity can be successfully identified. The method is demonstrated by using a plane truss bridge model, and the results show that the procedure is a robust method.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Damage Identification of Truss Bridge under Normal Traffic Loads


    Beteiligte:
    Wang, Ying (Autor:in) / Zhao, Renda (Autor:in)

    Kongress:

    First International Conference on Transportation Engineering ; 2007 ; Southwest Jiaotong University, Chengdu, China



    Erscheinungsdatum :

    09.07.2007




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Damage Identification of Truss Bridge under Normal Traffic Loads

    Wang, Y. / Zhao, R. / China Communications and Transportation Association; Transportation & Development Institute (American Society of Civil Engineers) | British Library Conference Proceedings | 2007


    Repairing a truss bridge under traffic by arc welding

    Woodruff, L.B. | Engineering Index Backfile | 1928




    Structural Identification of a Long-Span Truss Bridge

    Aktan, A. / Grimmelsman, K. A. / Barrish, R. A. et al. | Transportation Research Record | 2000