某主跨220m混凝土自锚式悬索桥设计  

Design Summary of One Self-anchored Suspension Bridge with 220m Main Span

作　　者：刘海忠 何春林 

机构地区：[1]武汉市公路勘察设计院,武汉430015

出　　处：《交通科技》2013年第5期28-31,共4页Transportation Science & Technology

摘　　要：介绍了吉林雾凇大桥设计基本情况,讨论了混凝土主梁收缩、徐变效应的不利影响,提出采用主缆锚点预偏及锚固区的合理设计措施,使自锚式悬索桥混凝土梁因收缩、徐变后主梁的内力与线形达到设计要求,使得主缆内力均匀地传递到全桥,保证了主缆的安全。The Jilin Wusong Bridge is a concrete self-anchored suspension bridge with main span of 220 meters and total deck width of 32 m. The rise-span ratio of main cable is 1/5.5, the stiffened girder has a concrete tri-cellular section, and the main cable is anchored dispersedly on concrete girder. To solve the problem of main girder deflection, the pre-setting measure for main cable anchorage is taken to avoid the adverse impact due to concrete shrinkage and creep effect, and the anchorage zone design of main cable is introduced herein.

关 键 词：自锚式悬索桥 设计 收缩徐变 锚固区 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]