Finite element analysis of contact stresses and deformation of north anchor foundation of Runyang suspension bridge

Considering the interaction of anchor foundation and soil, the three-dimension nonlinear finite element model was founded based on ADINA software, for the concreting construction and running process of north anchor foundation of Runyang suspension bridge. By the numerical simulation from the construction to running process, the change law of the contact stresses and deformation of gravitational rock-socketed anchor foundation is investigated. It is shown that though the contact stresses of different parts of the anchor foundation take on different characters during different stages of the construction process, both the deformation and the contact stresses of north anchor foundation from the concreting process to running process satisfy the request of design as a whole.