Performance of Vibration‐Based Damage Detection Methods in Bridges

• DOI: 10.1111/j.1467-8667.2008.00546.x
• Publication Date: 2008-11-19T18:54:43Z
• Authors: Paulo J. S. Cruz; Rolando Salgado
• Keywords: Bridge (graph theory); Structural Health Monitoring

Abstract: The important advances achieved in the modal identification, sensors, and structural monitoring of bridges have motivated bridge engineering community to develop damage detection methods based on vibration monitoring. Some these already been demonstrated under certain conditions with deliberate damage. However, performance for has not fully proven so far more research needs be done this direction. In article, six are evaluated two case studies. First, dynamic simulation parameters a cracked composite obtained. Here, different crack depth, extension damage, noise level. Second, is identified reinforced concrete bridge. This was deliberately damaged phases. example, methods, which do require comparison between conditions, were applied. first study, could detect all scenarios; however, their notably affected when introduced parameters. second successfully localize induced