In order to obtain the rational roof structure of the gymnasium in Olympic center of Yingkou,by utilizing the universal finite element software ANSYS and the self-developed assistant interface programs,systematical structure analyses between the double-layer latticed shell and the suspend-reticular shell were carried out on three schemes of the roof structure.

In order to demonstrate the practicability of construction excogitation,further to ensure the security of the design and construction,this paper analysed the stress conditions of large span reticulated shell-string structure through simulating the process of construction,monitoring the whole construction process and the complete status of the large span reticulated shell-string structure us.