The mechanics performance and mechanism of the space truss is analyzed in this paper.

A numerical example for a spatial truss is provided to verify the practicability of the method.

In this paper, the study at home and abroad on the basis of the structure of the steel grid reliability analysis done some exploration, carried out mainly on the following aspects:1.

This paper is an update of this software design tool, and delineates the thought process behind the development of such production oriented grid frame CAD software.

At last, this paper suggests the direction of further research, such as dynamical feature and responsibility, into cooperative grids structure .