Research on the subdivision visualization algorithm of complex bridge structure

The capacity that computer can solve more complex post-processing problem is gradually increased. The demand for section internal force of 3D solid model on engineering is also gradually increased. In view of this, this paper mainly analyzed the following several aspects. Firstly, proposed subdivision algorithm of the key sections in finite element model. Three subdivision algorithms for subdividing the solid model are obtained after describing the realization ideas and the solutions to the various difficulties. Secondly, put forward the subdivision methods of large-scale solid elements. After investigating the three subdivision algorithms, the most effective subdivision algorithm is given to do the subdivision of the solid model. Lastly, proposed the stress interpolation methods of the nodes in the subdivided sections. The stress of the intersection points used to calculate the internal forces of sections can be obtained after linear interpolating the stress of the adjacent nodes. This paper indicates that it can deal with the key methods of the section internal force calculation after using the subdivision algorithm.