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.
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 inspec- tion.
出处
《广州航海高等专科学校学报》
2012年第1期34-35,共2页
Journal of Guangzhou Maritime College
关键词
连续刚构桥
动力特性
模态分析
continuous rigid frame bridges
dynamic behavior
modal analysis
