基于柔度曲率差变化率的悬索桥损伤识别分析

Analysis of Damage Identification of Suspension Bridges Based on Variation Rate of Flexibility Curvature Difference

为研究柔度曲率差变化率指标(FCDR)的损伤识别方法在悬索桥上的可行性,采用有限元软件建立悬索桥模型,通过有限元软件对悬索桥不同损伤程度的吊杆以及加劲梁进行模拟分析.结果表明:柔度曲率差变化率的损伤识别方法能够精确定位结构损伤位置以及定性损伤程度.

In order to study the feasibility of damage identification method based on FCDR,the suspension bridge model was established with finite element software.The finite element software is used to simulate and analyze the suspender and stiffening beam of suspension bridge with different damage degrees.The results show that the damage identification method based on the change rate of flexibility curvature difference can accurately locate the damage location and determine the damage degree.