Construction Technology of Simple-supported-to-continuous Box Girder Bridge of Prestressed Concrete Box Beam

At present on the construction process of simple-supported-to-continuous structure system,a certain bifurcation existed,there was short of united cognition on the moulding order of the back continuous end,the tension order of the back continuous stress as well as the cast way of the back continuous end.In this paper,through combining the practical project,the requirement of the design point,construction point and construction process control was advanced.This construction process was important for the promoting and developing ofthis kind ofstructure.