Discussion the construction technology of support cast-in-place variable cross-section continuous box beam

Combined with the construction of Xinwuyi canal Bridge in 312 national highway,the construction technology of variable cross-section continuous box beam was emphasis introduced,the matters need attention in construction were proposed.It pointed that the moving support cast-in-place technology not only reduce engineering construction fee,save cost,but also favorable to construction safety control,which obtained better economic and social efficiency.