变截面钢箱梁曲线形底板单元制造工艺

摘要

The main span of Chongqi bridge is variable cross-section steel girder,in which the bottom plate is second-degree parabola figure. In this paper,the fabrication techniques of curvilineal bottom plate,which were proved very accurate and convenient, were studied in the fabrication of steel box girder of Chongqi bridge, the reserach could be taken as reference for other similar projects.%崇启大桥主桥钢箱粱为二次抛物线变截面高度钢筋梁，其底板单元纵向为曲线形。文章介绍了该曲线形底板单元制作过程中的线形控制技术，经实践证明该方法可靠实用，可为同类型桥梁制造提供参考。