ABSTRACT
The tower of a cable-stayed bridge adopts the steel-concrete composite structure, which gives full play to the advantages of steel and concrete. In order to study the elastic-plastic bearing capacity of the steel-concrete composite bridge tower, ABAQUS was used to establish the finite simulation models of the tower section considering material nonlinearity. The elastic-plastic bearing capacity of the tower column was calculated and analyzed. Meanwhile, the influence of structural parameters such as the thickness of steel panels, the diameter of vertical bar, and the concrete strength on the bearing capacity of the tower column was discussed. The results show that the concrete and the steel are subjected to the joint force in the elastic stage. The structural design of the composite tower column has sufficient reservation on loading capacity, which can meet the requirements of the bearing capacity in the elastic stage. The optimization suggestions can improve the technical economy and construction efficiency
