空心板桥梁的横坡和纵坡,是通过支座处坡度的设置来实现的,从设计方面讲,采取的方案有很多种,其中最关键的问题是准确的安装设置方法。在支座预埋钢板下焊接一块楔形钢板,预制时底模设置不受桥梁横坡、纵坡及梁板长度、角度的影响,可大大提高施工效率。但锲形钢板的加工难度较大,费用较高,增加了空心板的施工成本。 The cross-slope and longitudinal slope of the hollow-slab bridges are achieved through the setting of the slope at the support. There are many kinds of solutions adopted in the design. The most critical issue is the accurate installation and installation method. A wedge-shaped steel plate is welded under the embedded steel plate of the support. The bottom die set in the prefabrication is not affected by the length and angle of the bridge cross-slope, the longitudinal slope and the slab, thereby greatly improving the construction efficiency. However, the wedge-shaped steel plate processing more difficult, higher cost, an increase of hollow plate construction costs.