To assure alignment smoothness and inner pressure suiting the requests of the design,when upper structure placing in closure section ,we use rigid bracing beam to connect two neighbouring cantilever end.
风陵渡公路黄河大桥采用悬壁浇筑法施工的连续箱梁，上部结构在合拢段浇筑时，为保证合拢段的线形顺适和内力分布满足设计要求，采用刚性支撑梁将两相邻悬臂端连接。