超长环形连续钢箱梁天桥结构设计要点

Structural design points for long ring steel box girder bridge

介绍了超长环形连续钢箱梁天桥人群荷载的计算及荷载组合方法,对钢箱梁截面尺寸的确定及温度作用与频率控制作了探讨,通过一些措施的实施,从而解决了对频率控制的不利影响。

The paper introduces calculation of crowd load and method of load combination on the long ring steel box girder bridge, it also discusses about confirmation size of cross section, temperature effect and frequency control of steel box girder bridge. It solves adverse effects on frequency control through adopting some measures.