Orienting to the specific characteristics of behaviors of externally prestressed concrete bridges under segmental construction, a joint model of the same displacement constraint is proposed by using freedoms coupling and mixed coordinate systems. Considering material nonlinearity, the second-order effect of external prestressing cables and the joints, both 8-node plane quadrilateral equal element and one-dimensional truss element are used for concrete and internal or external tendons. Then a finite element model is established and programmed, which is capable of performing the nonlinear all- s...
