摘要
为研究下承式悬链线钢管混凝土拱桥动力特性,基于运城市某省道上一座27m+60m+27m下承式悬链线钢管混凝土拱桥,对该桥采用Midas/Civil 2012有限元软件进行建模,计算桥梁在成桥状态工况下结构的自振频率及振型特征,同时对影响该种桥型结构动力特性的结构参数进行对比分析。
To study the dynamic characteristics of through catenary concrete-filled steel tube arch bridge,based on a(27+60+27)m through catenary concrete-filled steel tube arch bridge on a provincial road in Yuncheng City,the Midas/Civil 2012 finite element software was used to model the bridge,and the natural frequency and mode characteristics of the bridge under completed condition were calculated,and the structural parameters affecting the dynamic characteristics of the bridge type were also analyzed.
作者
杨军朝
关伟
王毅斌
YANG Jun-chao;GUAN Wei;WANG Yi-bin(Xi,an Highway Research Institute,Shaanxi Xi,an 710065 China;Shanxi Transportation Research Institute,Shanxi Taiyuan 030006 China;Scegc Mechanized Construction Group Company Ltd.,Shaanxi Xi,an 710032 China)
关键词
钢管混凝土拱桥
动力特性
自振频率
振型
矢跨比
concrete filled steel tubular arch bridge
dynamic characteristics
natural frequency
mode of vibration
rise span ratio
