The space frame structure belongs to the hinged bar structure in the space structure system of the too span. Its overall performance of the structure is good, the spatial rigidity is large, the force is reasonable and uniform, the material is saved, the members are single, and the materials of each member can fully play its role. Easy to install. The space frame structure rods are arranged flexibly and are suitable for buildings of various shapes and roof structures with large spans and large column spacing. The space frame structure has the advantages of good overall rigidity, good overall performance, can withstand accidents, ideal seismic performance, and saving steel.
As a large-span roof structure, its characteristics are:
1) It can give full play to the material strength advantages of concrete under compression and steel under tension;
(2) The load-bearing and enclosure functions of the structure are combined into one;
(3) It is a combination of plate system, beam system and rod system. It is a cooperative space structure with high vertical and horizontal stiffness and good seismic performance;
(4) It is used in single-span structures to avoid negative bending moments.