Damage Identification of Stay Cables Based on a Small Amount of Deflection Monitoring Data

For the problem of cable damage identification in cable-stayed bridges, we have presented a method for identifying based on deflection monitoring data from small number measurement points. We first describe to reduce analyzed distributional characteristics difference before and after bridges with optimized The derivative is transformed by wavelet transform identify location damaged cable. Then, Kriging proxy model exponential differences established. objective function constructed residual formed measured difference. With particle swarm optimization algorithm, parameters surrogate are modified minimize function, cables then identified. It shown that can be identified points error. degree accurately determined using model.