西安市灞河元朔大桥总体设计

Overall Design of Bahe Yuanshuo Bridge in Xi'an

摘要:

西安市灞河元朔大桥为主跨300 m的空间自锚式悬索桥，桥梁全长632 m，跨径布置为50 m+116 m+ 300 m +116 m +50 m。加劲梁采用整体断面钢箱梁，梁宽56 m，中心梁高4.0 m，由中心向两侧按1.5%设置横坡。索塔采用空间异形钢索塔，总高123 m。2根空间主缆均由91股91根预制镀锌平行钢丝组成，吊索间距10 m。有关灞河元朔大桥的总体设计情况介绍，可以为同类工程提供参考。

Abstract:

The Bahe Yuanshuo Bridge in X'ian is a spatial self-anchored suspension bridge with the main span of 300 m. The total length of the bridge is 632 m, and the span layout is 50 m +116 m +300 m +116 m +50 m. The stiffening girder is an integrated-section steel box girder. The girder width is 56 m and the height at the center girder is 4.0 m. The transverse slope is set up from the center to both sides according to the ratio of 1.5%. The cable pylon is a spatial special-shaped steel pylon. Its total height is 123 m. The two main spatial cables are composed of 91 strands of 91 prefabricated galvanized parallel steel wires. The cable spacing is 10 m. The overall design of Bahe Yuanshuo Bridge is introduced in order to provide the reference for similar projects.