【摘要】 自振频率是桥梁结构动力特性的模态参数,也是评价桥梁动力性能的重要依据.本文以某大跨度连续刚构为例,采用大型专业结构分析软件MIDAS建立该桥的有限元计算模型进行模态分析,得出相关模态参数,为桥梁检测等提供参考.更多还原

【Abstract】 Natural frequencies are modal parameters that reflect dynamic behavior of bridge structures and they are critical bases to evaluate the dynamic performance of bridges.This paper takes a large continuous rigid frame bridge as an example and a finite element computing model is set up for this bridge based on software MIDAS,which is to carry out modal analysis and get relevant modal parameters.The results can be used as reference in bridge inspection.更多还原