Numerical Calculation of Stress Conditions of Anchorage Zone in Composite Pylon of Shanghai Changjiang River Bridge

With reference to the practical construction of Shanghai Changjiang River Bridge,the 3-dimensional finite element model is used to simulate in details each component part of the pylon of cable-stayed bridge,in which the interaction between the steel anchor housing and concrete of the pylon is considered.The stress of plates for the steel anchor housing and stress of the concrete are calculated,and the transmission and distribution relations of stay cable forces in the anchorage zone of the pylon are analyzed as well.