拱塔斜拉桥设计与施工

Design and Construction of Arch-pylon Cable-stayed Bridge

摘要:

韩城市太史大街西延伸桥梁建设工程以高架形式连接韩城新城区和象山森林公园，主桥采用拱塔斜拉桥，跨径布置108 m+128 m，索塔采用竖直拱形塔，主梁采用双边箱钢主梁。为保证异形结构的焊接质量，索塔采用“卧式拼装，整体竖直提升转体”的总体施工方案，并创新性地提出了“塔内设支架，边拖行边竖转”的转体方法，可为类似工程提供有益的参考。

Abstract:

The Hancheng City Taishi Avenue West Extension Bridge Construction Project is to connect the Hancheng New District and Xiangshan Forest Park in an elevated form. The main bridge is an arch-pylon cable-stayed bridge. Its span layout is 108 m + 128 m. The cable pylon is a vertical arch pylon. And the girder is a double-side box steel girder. In order to ensure the welding quality of the special-shaped structure, the overall construction scheme of "horizontal assembly, integrated vertical lifting rotation" is adopted for the cable pylon, and the rotating method of "bracket in pylon and vertical rotation while dragging" is creatively proposed, which can provide a useful reference for similar projects.