在国内外大跨径的预应力混凝土桥梁施工中,由于受到跨径大、墩身高、冲刷深、构件重以及不能影响通航等条件的限制,悬臂挂篮浇筑上部构造的方案,已被广泛应用。济南黄河公路大桥是我国目前最大跨径的预应力混凝土斜拉桥,主跨220米,桥宽 In the construction of large-span prestressed concrete bridges both at home and abroad, the scheme of pouring the superstructure by cantilever hanging basket has been widely applied due to the limitation of large span, pier height, scouring depth, weight of components and failure to affect navigation, . Jinan Yellow River Highway Bridge is China’s largest span of the prestressed concrete cable-stayed bridge, the main span of 220 meters, the bridge width