摘要
运用组合梁单元法分析哑铃型钢管混凝土拱桥,可以很方便地获得上下弦钢管及缀板的内力,运用该法并结合按龄期调整的有效模量法,编制了有限元计算程序,采用逐步计算徐变的方法分析了徐变对某哑铃型钢管混凝土拱桥的影响,认为应考虑徐变对预拱度设置和混凝土内力重分布的影响。
It is conveninent to get the internal force of the upper steel tube, down steel tube and batten plate of CFST arch bridge with dumbbell section using combined beam element method. Based on the method and age-adjusted effective modulus method （AEMM）, this paper compiles finite element program and analyses the effect of creep on CFST arch bridge. The effect of creep on camber setting and internal force redistribution of concerte should be considered.
出处
《现代交通技术》
2008年第5期41-43,共3页
Modern Transportation Technology
关键词
拱桥
徐变
钢管混凝土
影响
arch bridge
creep
concrete-filled steel tube
effect
