Techniques for Manufacturing of Steel Box Girders with Twisted Surface Space

According to the characteristics of continuous beam of a landscape pedestrian bridge,which has a link-type twisted surface spatial structure,this paper introduces the techniques for fabrication of steel box girders,by which the girders were made reversely and turned to reset on the pedestals for matching and the segments of girders were precisely controlled for their linearity.With the improvement of construction technology,the manufacturing techniques for steel box girders for this project made a breakthrough in the traditional preassembling techniques,which ensured the quality of the final product,improve the production efficiency and cut down the manufacturing cost.