面向健康诊断的悬索桥试验模型设计

介绍了以健康监测与诊断研究为目的的悬索桥结构模型试验设计。根据悬索桥的结构特点,建立了考虑横向联结系的三维有限元模型;然后采用ANSYS有限元分析程序对模型的动力特性进行了预分析,获得了模型的自振频率和振型,进一步验证模型试验的可行性,为进行更深层次的试验研究奠定了基础。

Design of Trial Model for Suspension Bridge, Geared to the Need of Health Diagnosis of Bridge

The paper introduces the design of suspension bridge trial model for health monitoring and diagnosis.In terms of structural characteristics of suspension bridge,the three-dimentional finite model for lateral bracing system is established.Then the finite element program ANSYS is adopted to make a preanalysis of model dynamic property,reaping the natural frequency of vibration for model and the vibration type,further verificating the feasibility of model trial,which lay a foundation for deep study of bridge's health.