Objective/problem
Hollow profile constructions are increasingly used in modern steel construction because of their geometrically (plain) shapes. Therefore, hollow profiles are preferred elements in challenging architectural constructions. The use of hollow profiles in frameworks leads to more cost-effective constructions, and therefore to competitive constructions to other building materials.
The cost effectiveness of a hollow profile construction mainly depends on the load bearing capacity of the joints at the bars’ junctures, which transfer the resulting loads to the adjacent bars. The hollow profiles usually are not stiffened in the load application range/area.
Therefore it is determinant for the joint-bearing capacity, the bearing capacity of the connection weld seams, as well as the resistance and stability of building parts, especially the joints’ geometry, which significantly determines the local, elastic-plastic bearing capacity