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Curvature Model Based Many Damage Locations Identification of Reinforced Concrete Beam(PDF)


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Curvature Model Based Many Damage Locations Identification of Reinforced Concrete Beam
1. Department of Management Science and Engineering, University of Science and Technology of Suzhou, Suzhou 215011, Jiangsu, China; 2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
reinforced concrete beam damage identification curvature model dynamic characteristic finite element method
An approach of structural many damage locations of reinforced concrete beam identification by curvature model was studied. Firstly, the finite element software of structure was built; the structural displacement models vibration shape was computed. By using the central difference approximation, the curvature models were then gained from the displacement mode shapes. At the same time, the real structure was inspected; the structural displacement models were gained and the curvature modes were calculated. Through comparing the curvature modes of real structure with finite element model, a damage factor was gained. Based on analyzing the damage factor, damage location can be identified. Numerical simulation analysis shows that the curvature model has a little sensitivity to damage of structures; it is an effective method to evaluate many damage locations identification of structure.


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Last Update: 2006-12-20