Damage Identification Method of Simply Supported Beam Bridge with Multiple Girders

Abstract:

Considering the complexity of the simply supported beam with multiple girders, a two-step damage identification algorithm for this kind of bridge is presented. This algorithm first locates the damage by means of curvature of flexibility change, and then utilizes the PSO-SVM algorithm to identify the damage extent. At last, a numerical simulation calculation is conducted to identify the damage state of a simply supported T-beam bridge with five girders. The numerical simulation results show that the algorithm proposed is valid, reliable and with high recognition precision.

• Periodical: Applied Mechanics and Materials (Volume 437)
• Pages: 377-381
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.437.377
• Online since: October 2013
• Authors: Ping Yi Sun, Yan Hua Wang, Yan Feng Niu, Han Bing Liu, Guo Jin Tan*
• Keywords: Curvature of Flexibility Change, Damage Identification, PSO-SVM, Simply Supported Beam Bridge with Multiple Girders

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