粉房湾长江大桥正交异性桥面板单元制作及变形控制

Unit Making and Deformation Control of Orthotropic Bridge Deck for Powder Room Bay Yangtze River Bridge

结合重庆粉房湾长江大桥钢结构工程实例,针对本工程特点与难点,详细介绍了桥面板的制作要点以及变形控制,包括钢板校正、U形肋拼装、焊接变形控制,板块摆放及约束,焊接顺序和方向,焊接校正方法及操作步骤。通过对正交异性桥面板单元制作及变形控制技术的研究,并应用于粉房湾长江大桥钢结构工程中,取得了良好的效果。

Combined with steel structure engineering of Powder Room Bay Yangtze River Bridge in Chongqing,based on the engineering characteristics and difficulties,the authors introduce main points of making for bridge deck, including plate correction, U-rib assembling, welding deformation control, plate displaying and constraining, welding sequence and direction, the method of welding correction, operation steps. Through study on unit making and deformation control of orthotropic bridge deck, and application in steel structure engineering of Powder Room Bay Yangtze River Bridge, good effect is obtained.