Assembling platform and integral lofting method for top and bottom plate units of special-shaped oversized steel bridge

The invention discloses an assembling platform and an integral lofting method for a special-shaped super-large steel bridge top and bottom plate unit, and belongs to the technical field of equipment, the assembling platform comprises a base, fulcrums are determined at equal intervals in the length and width directions of a horizontal plane above the base, supporting rods are arranged above the fulcrums, and arc tools are arranged on the supporting rods in the length direction; the arc tool has a gradient in the length direction, the gradient of the arc tool in the length direction is 2%, the arc tool has a gradient in the width direction, and the gradient of the arc tool in the width direction is 2%. By means of the method, plate unit lofting can be better attached to the field installation state, and the integrity and balance of a steel box girder stress system are guaranteed. 本发明公开了异型超大钢桥梁顶底板单元的组装平台及整体放样方法，属于设备技术领域，包括包括基座，基座上方在水平面的长度和宽度方向上等距确定一个支点，支点上方设有支撑杆，长度方向上的支撑杆上设有圆弧工装，圆弧工装在长度方向上设有坡度，圆弧工装在长度方向上的坡度为2％，圆