番禺大桥主跨斜拉桥设计

DESIGN OF THE CABLE-STAYED BRIDGE AS THEMAIN SPAN OF THE PANYU BRIDGE

介绍一座已经竣工通车的超宽大跨径斜拉桥的设计概况，包括工程概述、总体设计、结构设计及计算和施工控制等内容该桥采用１４３．８ｍ高钻石型ＲＣ主塔，３７．７ｍ超宽ＰＲＣ边主梁，其宽度列国内同类型桥第一位，列世界同类型桥第二位．列世界２３０ｍ跨径以上同类型桥第一位．超宽边主梁的采用不仅方便了施工，而且取得了良好的经济效益，主梁每平方米建筑厚度为同类型桥梁最低在边主梁上配空间索增加了抗扭能力，提高了抗风性能，为国内首创．

This paper presents a general description of a super-wide and long-span cable-stayedbridge specifically an introduction to the project, its gEneral design, structural design,computational work as well as construction control. The main tower of the bridge is of diamondtype and has a height of 143. 8 m. Super-wide edge girders with a width of 37. 3 m have beenadopted for the bridge. The width ranks first among the bridges of the same type in China andsecond in the world. The width also ranks first among the bridges of the same type with a spanover 230 m in the world. The super-wide edge girders make construction easier and goodeconomic benefit obtainable. The architectural thickness per square meter of the main girders isthe minimum among the bridges of the same type. Spacial cables are provided along the edgegirders for the first time in China. This raises the anti-torsion and anti-wind ability of the bridge.