Method of Construction Control for Long-Span Prestressed Concrete Curved Continuous Rigid Frame Bridge

This paper introduces the characteristics,principles and methods of construction control of long-span prestressed concrete continuous rigid frame.Based on constructed stages the FEM simulation model is established.Through the theoretical calculations with finite element method and the monitoring observation of the deformation and the stress of the main beam,technical data are provided for the construction safety and for the reasonable state of the erected bridge with curved prestressed concrete beams,which may be used as reference for the construction of other large span cantilever cast continuous bridges.