摘要
采用Midas/Civil有限元软件建立干沟桥平面有限元模型,运用无应力状态法对拱桥的吊杆张拉顺序、张拉次数及张拉时机进行了对比分析计算,得到了较为合理的2轮张拉的吊杆张拉方案,并成功运用到施工控制过程中。
Based on the design of Gangou Bridge, this paper developed the finite element model using the commercial software MIDAS/CIVIL2006. The Stree-free Status Method is applied to the whole bridge to analyze rational cable force, tension sequence and tension time of suspenders. By analysis and comparison, A two stage tension plan is proposed which has been proved to be suitable for this type arch bridge. And this plan has been applied successfully in the construction control process.
出处
《交通科技》
2013年第3期5-8,共4页
Transportation Science & Technology
关键词
单肋拱桥
有限元
吊杆张拉
无应力状态法
single-rib arch bridge
finite element
suspender tension
stree-free status method
