Traglast von Verbandsstäben aus Hohlprofilen mit quasi-zentrischem Knotenblechanschluss

Load bearing capacity of bracing members with almost centric joints

In building constructions for bracing members often hollow sections are used with slotted gusset plates at the ends. These plates are attached to unstiffened plates of the adjacent construction. In practice sometimes a nearly centred joint is designed, by arranging the slotted gusset plate with an eccentricity of half the plate thickness to the member axis, so that the member eccentricity is minimised.
In the paper the load carrying behaviour of such members under compression and tension is discussed based on numerical analyses with nonlinear FE models including imperfections. The results are also compared with simplified engineering models, based on the Eurocode.
The geometric parameters and boundary conditions are varied in such a way that practical cases are covered and that the typical load carrying behaviour can be seen. Based on these results an improved engineering model for the design is represented.