摘要
相较于既有的施工控制方法,选用倒拆-正装相结合的施工控制计算方法对一座跨径260 m的钢管混凝土拱桥进行施工控制计算分析,采用MIDAS/Civil有限元软件的未知荷载系数法进行优化计算,得到合理的成拱线形和扣索索力,并对其线形、应力和稳定性进行了计算分析。结果表明,该方法切实可行,简单实用且计算精度高。
Comparing with the initial construction control method,this paper calculated and analyzed construction control of a CFST arch bridge with 260 m span using a method which combines back removing method and forward erection method,so as to obtain the arching linear and cable force,calculated its linear,stress and stability using MIDAS / Civil finite element software unknown load factor method. The results showed that the method was practical and simple,and owned high calculation precision.
出处
《钢结构》
北大核心
2016年第11期99-101,113,共4页
Steel Construction
关键词
钢管混凝土拱桥
成拱线形
倒拆-正装计算方法
施工控制
CFST arch bridge
arching linear
back remove-forward erection calculation method
construction control
