摘要
某桥为一座单箱双室变截面V型墩连续刚构桥,采用三向预应力体系,结构受力复杂,而设计时一般多采用平面计算方法,无法合理评定预应力筋的空间效应。采用有限单元法对其进行了三维实体有限元模拟计算,着重对三向预应力筋的空间效应进行了分析,对同类桥的设计提供了参考。
A bridge is a prestressed-concrete V pier continuous rigid frame bridge, whose section is single-box and two-compartment. The spatial stresses effect of the structure is complicated because of adoption prestressing force,The traditional elementary design theory can not analyze the spatial stresses effect. In this paper finite element method is used to simulate the spatial 3D structure, the spatial effect of the prestressing force is emphasized analysis, The research is useful for designing this type bridge.
出处
《科技通报》
2006年第5期699-703,共5页
Bulletin of Science and Technology
关键词
V型墩刚构桥
有限元法
预应力
V-shape piercontinuous rigid frame bridge
finite element method
prestressing force
