香溪长江特大钢桁拱桥扣挂法合龙控制研究  

Study on Closure Control of Xiangxi Changjiang Steel Truss Arch Bridge by Suspending and Connecting Method

作　　者：郑宏伟 董一鸣 ZHENG Hongwei;DONG Yiming(Zigui County Quxiang Traffic Construction Development Co.,Ltd.,Zigui 443600,China;Wuhan Anchang Heming Traffic Engineering Consulting Co.,Ltd.,Wuhan 430000,China)

机构地区：[1]秭归县屈乡交通建设开发有限公司,秭归443600 [2]武汉安畅合鸣交通工程咨询有限责任公司,武汉430000

出　　处：《交通科技》2019年第1期51-54,共4页Transportation Science & Technology

基　　金：湖北省住房与城乡建设厅项目(2016-347-6-12(B));湖北省交通运输厅项目(2016-600-4-4)资助

摘　　要：以某桥主跨531m钢桁拱桥主拱圈扣挂法合龙控制为研究对象,介绍该特大钢桁拱桥主拱圈合龙方案,分析影响无应力合龙目标的相关因素,建立拱肋架设有限元分析模型,进行无应力状态下的无应力索长求解和无应力构形确定,实现无应力合龙的目标。Based on the project of the closure control method of the main arch ring of bridge,which is a steel truss arch bridge with the main span of 531 m,the design of the closure scheme of the main arch ring is introduced.The related factors affecting the non-stress closure are analyzed.On the basis of the establishment of the finite element analysis model for the erection of the arch rib,the solution of non-stress cable length and determination of non-stress configuration under non-stress state is got,which achieves the goal of no stress closure.

关 键 词：刚桁拱桥 扣挂法 合龙控制 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]