【摘要】 针对桥梁结构的安全监测和评估问题,研究了 3种结构损伤动力学检测方法,分析了柔度差方法和曲率模态法应用于损伤检测的局限性。提出柔度曲率的概念,只需结构前 2或 3阶振型和频率数据即可准确识别出结构损伤位置,并用有限元仿真实验结果验证了该方法的可行性和正确性。更多还原

【Abstract】 In this paper,three damage detection methods for damaged structures were investigated to improve safety monitoring and evaluation of beam bridges.The flexibility curvature was proposed that only requires the mode and frequency data of the first 2 or 3 modes.The feasibility and validity of this method were verified through finite element results.更多还原