公伯峡黄河大桥混凝土灌筑阶段斜拉挂扣技术  

Using inclined tensioned cables to balance the steel pipe arch rib during concreting

作　　者：周光忠 刘建龙[1] 苏国明[1] 张德锋 

机构地区：[1]铁道建筑研究设计院交通工程研究所,北京102600 [2]中铁第十九工程局,辽宁辽阳111004

出　　处：《铁道建筑技术》2001年第4期4-7,共4页Railway Construction Technology

摘　　要：结合公伯峡黄河大桥钢管拱肋内混凝土灌筑 ,对灌筑过程中拱平面内挠度和应力进行了计算和分析。为减少挠度和应力 ,通过设定斜拉扣索及其相应拉力 ,即对拱顶施加平衡力 ,达到消除挠度和应力 。The deflection and stress of the arch rib during concreting were calculated and analyzed in construction of Gongboxia Yellow River Bridge. By applying proper balancing forces to the arch crown, the deflection and stress were eliminated and continuous concreting was achieved.

关 键 词：钢管混凝土拱桥 混凝土灌筑 斜拉加索 应力 挠度 

分 类 号：U448.22[建筑科学—桥梁与隧道工程]