基于MIDAS/CIVIL的拱桥上下部结构自振特性分析  

作　　者：汪玉容[1] 曾玉菲 

机构地区：[1]凯里学院,贵州凯里556011

出　　处：《黑龙江科技信息》2016年第32期257-258,共2页Heilongjiang Science and Technology Information

摘　　要：上承式空腹式拱桥具有经济合理、造型美观等优点,是我国山区使用很广的一种桥型。本文运用MIDAS/CIVIL有限元软件建立既有上承式空腹式拱桥上下部结构整体的空间动力模型,并对其自振特性进行了分析。通过计算自振频率及对振型的分析,表明既有上承式空腹式拱桥上下部整体的动力性能满足要求。On the spandrel arch bridge has the advantages of reasonable economy, beautiful appearance, is a bridge in the mountain- ous area of our country is widely used. In this paper, the MIDAS/CIVIL finite element software is used to establish the spatial dynamic model of the upper and lower structures of the upper and lower arch bridges, and the natural vibration characteristics are analyzed. By calculating the natural frequency and the vibration mode analysis, it shows that the dynamic performance of the upper and lower part of the existing arch bridge is satisfied.

关 键 词：拱桥 整体 有限元 自振特性 

分 类 号：TU392.02[建筑科学—结构工程]