Taking the calculation of the hanging basket structure of a certain bridge as the research object, this paper introduces the theory of and calculating methods for the structural three-dimensional simulation analysis based on ANSYS finite element theory.

On the basis of the primary concepts of thermal conduction and thermal physical property of concrete material, the causes resulting in temperature stress of the concrete structures are analyzed, a compute model for the temperature stress of concrete structures is set up by using the finite element theory, the principles to check of the structure are also given up.

Firstly,the analytical models of seismic response are derived on the isolated and non-isolated structures respectively,then the seismic time history responses of these two models are calculated by means of finite element method.

Firstly,theanalytical models of seismic response are derived on the isolated and non-isolated structuresrespectively,then the seismic time history responses of these two models are calculated bymeans of finite element method.

Misses formula and FEM of shell theory, the stability of the pipe of this kind is analysed, the result is applied for repairing the conveyance conduit of Wangjiachang irrigation canal.