Abstract: According to the age adjusted effective modulus method and the creep coefficient provided by the Rule ,a computing program is presented in this paper.Being aimed at the Yonghe bridge in the city of Nanning, a truss arch bridge with concrete filled steel tubules(CFST) and with a main span of 349m, a numerical calculation is carried out .The results shows that the creep effect can improve the internal force and deformation state of CFST arch bridge to some extent, the redistributed internal force is considerably large.

摘要： 采用《规范》[1] 提供的徐变系数 ,结合按龄期调整的有效模量法 ,编制了相应的计算程序 .针对主跨度为349m的南宁永和大桥变高度截面钢管砼桁式拱桥进行了数值计算 ,计算结果表明 ,砼的徐变能在一定程度改善钢管砼拱桥结构的受力状况 ,钢管砼拱桥的内力计算应考虑砼徐变的影响

关键词: 钢管砼, 拱桥, 徐变系数