Tube trusses are lattice structures formed by connecting round bars. Since tube trusses are used for the roof structure of buildings, they can be regarded as a structural form of roof trusses. The tube truss structure is economical in materials, light in weight, and easy to form various shapes for different purposes. The tube truss structure has been used in many steel structure buildings and is also a very common steel structure roof truss structure. Let’s take a look at the characteristics of the tube truss structure and what kind of steel structure building it is suitable for.
Characteristics of tube trusses
The tube truss structure is stable, firm, strong in bearing pressure, and economical in materials. Most importantly, it has a beautiful shape and is suitable for building roof trusses with unique shapes.
The tube truss is actually developed on the basis of the grid structure and has more advantages than the grid structure. Compared with the grid structure, the tube truss structure saves the lower chord longitudinal rods and the ball nodes of the grid, which can meet the requirements of various different building forms. When the same building is built into a round arch or any curved shape, the tube truss uses less steel than the grid frame, and the cost of the tube truss is lower under the same effect.
The tube truss has good overall performance, large structural span, high torsional stiffness, visually simpler and more atmospheric, rich in shape, more beautiful and smooth effect. It is often used in the roof structure of terminal buildings, large gymnasiums, exhibition centers, high-speed rail and subway platforms, large shopping malls, large industrial plants, etc.
Compared with traditional steel trusses, the cross-section distribution of the tube truss is more uniform, with better compressive and bending bearing capacity, and the appearance is more beautiful and the decorative effect is stronger. Whether it is an arch, a curve, or a streamlined shape, it can be easily realized, giving people a more comfortable visual experience.
The advantages of the tube truss roof structure are indeed obvious, but it does not mean that the tube truss structure is suitable for all steel structure buildings. The tube truss structure occupies a large space, which is not applicable to steel structure buildings with smaller areas and single-story buildings.
The design and installation of the tube truss structure are relatively complex, and it occupies a large space, which is not applicable to ordinary small steel structure buildings. However, for some large public buildings with certain requirements for shape, the tube truss structure is a very ideal choice.
Therefore, when designing and building steel structure buildings, the tube truss structure can be considered for many large public building facilities. Because of its beautiful shape (can be built into a flat plate, arch, or any curve), easy to make and install, good structural stability, high roof rigidity, and good economic effect. For ordinary steel structure buildings with large space requirements, ordinary frame structures can be selected.
