In recent years,steel pipe space truss is widely used in the design of roof system of medium-span exhibition hall,grand hall,factory building and other public buildings,because of its ascendant structure property and beautiful building appearance.

In this article, author introduces installation methods of spatial steel pipe truss of hyperbolic dome steel structure roof of Ji nan International Airport.

Used a method of convert rectangle section substituted anomaly section and fold members substituted curvemembers for the space steel trusses structures are analyzed in this paper, and the design requirements are satisfied with the project measurement.

In order to study the aseismatic behavior of the joints of space steel truss and RC.

In the structure of spatial steel truss paved with concrete floor,the floor and upper chords are connected by connectors to provide constraints to the truss in the plane and out of plane direction.

To guarantee the safety,function and beauty of the display screens,calculation and optimization of many supporting structure projects are conducted and spatial steel truss is adopted.