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Stress Analysis of Space Frame Structure

2020-11-12

 

Force analysis is an indispensable part of the design of the space frame structure.

In-plane cage frame systems (in scissor roof systems) the carrier construction is formed in the same plane. The scissors manufactured in this way are distributed in two dimensions on the same plane in the roofs. Planar roof scissor constructions made in a similar manner are arranged parallel to each other on the roof and are connected to each other in a perpendicular direction. For these reasons, load distributions are carried out in perpendicular planes. Because of this, the steel elements are exposed to large loads as they can be transferred to a restricted geometry, which results in structural designs made with very heavy sections, especially in large openings.

space frame roof

Furthermore, the reactions occurring between the plane shear roof and the carrier structure cannot be distributed in a very stable manner, which makes the carrier infrastructure more costly.

However, space cage systems provide the best load distribution by connecting the lower horizontal and upper horizontal rods, which form itself from the first support to the diagonal rods in 3D. The sudden and large loads that can occur in this vault are divided into small pieces and transferred to the knot elements by the rod elements of circular diameter with minimum diameter. In addition, since moments are zero in point node elements, the node elements do not transmit dome effect and moment. All elements are assumed to be subjected only to axial pressure and tensile forces.

 

SAFS devote to the development of space frame for several years, professional manufacture of space frame for diverse projects such as aircraft hangar, bulk storage, warehouse and skylight roof, etc.

For more information please contact us: safs139@safseelstructure.com