摘要
在介绍高墩大跨预应力混凝土曲线连续刚构桥结构特点的基础上,分析主梁自重、预应力、混凝土徐变以及平曲线等对结构应力和变形的影响。结合某工程实例,建立有限元模型计算分析高墩曲线刚构桥的受力和位移规律,研究此类桥梁在施工阶段和成桥阶段的空间结构行为,为高墩大跨曲线刚构的设计与施工提供参考。
Based on introducing the structural characteristics of curved prestressed concrete rigid frame bridge with long-span and high piers,analysis the effect on stress and displacement which are caused by beam deadweight, prestress, shrinkage and creep of the concrete, and horizontal curve. Combining with an engineering project, build a finite element model to analysis the regularity of stress and displacement ,then the structural spatial behaviors of this type bridge were investigated. The study may provide some suggestions for design and construction of curved frame bridge to a certain extent.
出处
《四川建筑科学研究》
北大核心
2010年第1期15-17,共3页
Sichuan Building Science
关键词
预应力混凝土
高墩
大跨
曲线连续刚构
弯扭作用
prestressed concrete
high pier
long-span
curved continuous rigid frame bridge
torsional action
