摘要
以介休市汾河大桥为背景,该桥是一座(65+120+65)m预应力混凝土连续刚构桥,采用TDV RMV8i有限元软件对该桥进行三维空间有限元建模,对其进行动力特性分析,采用"子空间迭代法"得出该刚构桥的结构自振频率及自振特性,同时对该桥结构自振特性的影响因素进行对比分析,该研究可供类似桥梁在结构设计时参考。
Taking a prestressed concrete continuous rigid frame bridge in Jiexiu as the background, using the finite element software TDV RMV8 i, this paper presented the three-dimensional space finite element modeling and analyzed the dynamic characteristics. Using ＂the subspace iteration method＂, it concluded the structural natural frequency and natural vibration characteristics of the rigid frame bridge. It also compared and analyzed the influence factors of the bridge structural natural vibration characteristics, which provided reference for the structural design of similar bridges.
作者
刘德
LIU De(Datong Southern Suburb Transportation Administration, Datong, Shanxi 037001, China)
出处
《山西交通科技》
2017年第2期20-23,共4页
Shanxi Science & Technology of Transportation
关键词
桥梁工程
连续刚构桥
结构自振特性
振型特征
bridge engineering
continuous rigid frame bridge
structural natural vibration characteristics
modal characteristics
