摘要
飞燕式钢管混凝土系杆拱桥造型复杂,加工制作难度大。根据拱桥的结构特点,制定相应的制作工艺和工装设计,运用计算机三维结构放样,通过数控切割下料,管节卷圆,拱肋管节接长,拱肋节段组装,拱肋大节段预拼等工序完成钢管拱制造。
Flying Swallow Type CFST Tied Arch Bridge is difficult in machining and fabrication, due to the complicated shape. Make fabrication process and jig design according to the structural features, and develop the lofting by means of three-dimensional method. The steel tube arch will be fabricated through procedures including NC cutting, bending of pipe joint, extension of arch-rib pipe joint, assembly of arch-rib sections, and preassembly of large arch-rib sections.
出处
《江苏建筑》
2010年第4期69-70,101,共3页
Jiangsu Construction
关键词
钢管拱桥
结构放样
管节卷圆
拱肋管节接长
拱肋节段组装
拱肋大节段预拼
steel tube arch bridge
structure lofting
bending of pipe joint
extension of arch-rib pipe joint
assembly of arch-rib sections
preassembly of large arch-rib sections