What are the characteristics of node structure of pipe truss structure?

The tube truss structure can meet the requirements of different building forms by eliminating the ball nodes of longitudinal rods of chord and net frame, especially it has more advantages than net frame structure in constructing round arches and arbitrary curved shapes. It has the same stability in all directions and saves material consumption. Steel pipe truss structure is developed on the basis of net frame structure, which has its unique superiority and practicability compared with net frame structure, and the amount of structural steel is also more economical.

Compared with the traditional open section (H-beam and I-beam) steel joist, the cross-section material of pipe joist structure is more uniformly distributed around the center and axis, so that the cross-section has good compressive and bending and torsion bearing capacity and large stiffness at the same time, and no node plate is needed, so it is simple to construct. The most important thing is that pipe truss structure has beautiful appearance and is easy to be modeled with certain decorative effect. Tube truss structure has good overall performance, large torsional rigidity and beautiful appearance, and it is relatively easy to make, install, turn over and lift; steel tube roof frame made of cold-formed thin-walled steel has the advantages of light structure, good rigidity, saving steel and giving full play to the strength of the material, especially it is more economical to adopt it in the compression rod and support system controlled by the length and slenderness ratio. At present, the buildings using this structure are basically public **** building. The structure has a beautiful shape (can be built into a flat plate shape, round arch, any curve shape), easy to produce and install, good structural stability, roof rigidity, good economic results and so on.