曲率模态在桥梁状态监测中的应用

BRIDGE DIAGNOSIS USING CURVATURE MODE SHAPES

本文分析了曲率模态用于桥梁状态监测的可行性 ,并进行了有限元验证。结果表明 ,曲率模态对故障较为敏感 ,能够反映桥梁的局部状态变化 ,可以用来检测损伤位置及损伤程度 ,且高阶的曲率模态对故障的敏感性要优于低阶的曲率模态。

Curvature Mode Shapes (CMS) is used in the bridge diagnosis system,and a finit element model is established to verify its efficiency.Conclusion is made that CMS is very sensitive to the damage of structure and can be used as an indicator in the diagnosis system.