Abstract:The asymmetric cantilever pouring continuous girder bridge with first middle span and then side span closure has a complex stress because of its special pouring and closure modes. The finite element analysis software is used to analyze the influences on the closure error, closure temperature and closure weight on the stress and deformation of the bridge completion state. It is found that the closure error has a significant influence on the bridge completion linearity. The displacement can be increased by about one time under the ideal condition. The closure temperature will produce the bridge direction displacement for bridge support. The pre-deviator should be set in advance during construction. The closure weight for middle span can effectively decrease the imbalance bending moment of pier top and the construction safety can be ensured.
