弧形管桁架相贯线切割及跨外吊装施工方法

On construction methods for intersecting line cutting and external hoisting of arc pipe truss

论述了弧形管桁架相贯线切割及跨外吊装施工的工艺原理,对弧形桁架切割、弧度控制、拼装焊接作业、桁架拼装等技术进行了介绍,实施效果表明:通过该施工工艺,取得了良好的施工效果。

The paper indicates the craft principle for the arc pipe truss intersecting line cutting and external hoisting, introduces the techniques for the arc truss cutting, the are control, assembly welding, and truss assembly, and proves by the implementation effect that the construction craft can achieve better construction effect.