杨杰, 李爱群, 丁幼亮, et al. Technology and Application of Structural Health Condition Assessment for Sutong Bridge (1): Damage Identification of Stay Cable[J]. 2010, 30(3): 325-329.
杨杰, 李爱群, 丁幼亮, et al. Technology and Application of Structural Health Condition Assessment for Sutong Bridge (1): Damage Identification of Stay Cable[J]. 2010, 30(3): 325-329. DOI: 10.13409/j.cnki.jdpme.2010.03.005.
In this paper the damage identification method for stay cable of Sutong Bridge is established using the modified RBF neural networks.The ratio of two different frequencies of the main girder is a vibration character which varies only with the damage location.It is selected as damage analysis index to train the neural networks.And in order to control the over-fitting of RBF neural networks
a new modified algorithm is presented based on R2+ rule and Jackknife validation.The analysis results show that the presented method can effectively locate the cable damage of Sutong Bridge.