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.
出处
《铁道建筑技术》
2001年第4期4-7,共4页
Railway Construction Technology
关键词
钢管混凝土拱桥
混凝土灌筑
斜拉加索
应力
挠度
steel pipe-encased concrete arch bridge, concreting, inclined tensioned cable, stress, deflection
