Innovation and practice of continuous rigid-frame structure in construction of super-large span aqueduct
XU Jiang，XIANG Guoxing，LUO Daiming，CHENG Mingwei
（1.Guizhou Survey and Design Research Institute for Water Resources and Hydropower，Guiyang550002，Guizhou, China；
2.Research Center of Water Resources Development and Utilization in Karst District of Guizhou Province，Guiyang550002，Guizhou, China；
3.School of Water Resources and Hydropower，Wuhan University，Wuhan430070，Hubei, China）
Abstract：In order to adapt to the construction of super-large span aqueduct in the new era，it is innovatedly proposed to take the variable box and variable cross-section box girder of aqueduct as the main girder structure of the continuous rigid-frame structure according to the technical route of integration of bridge and aqueduct on the basis of the digestion and assimilation of the experience from the construction of continuous rigid-frame structural bridge. After full studies made on the structure pattern，the structural mechanical and deformation performance and the construction technologies，the continuous rigid-frame structure aqueducts are applied to the constructions of Caodipo，Xujiawan，Hetougou and Jiaojia aqueducts for the main channel of the Phase I of Qianzhong Water Control Project，which are closed in the beginning of 2015，for which the corresponding monitoring data show that the structural performances meet the design prospection concerned，moreover the relevant water-filling test is successfully made as well.
徐江，向国兴，罗代明，程明伟. 连续刚构结构在特大跨径渡槽建设中的创新与实践[J]. 水利水电技术, 2017, 48(1): 82-87.
XU Jiang，XIANG Guoxing，LUO Daiming，CHENG Mingwei. Innovation and practice of continuous rigid-frame structure in construction of super-large span aqueduct[J]. Water Resources and Hydropower Engineering, 2017, 48(1): 82-87.
