Balázs Kövesdi

Experimental Studies on Deep Trapezoidal Sheeting with Perforated Webs

AbstractIn this paper, the behavior of deep trapezoidal sheeting with perforated webs is studied. The analyzed panel has longitudinal stiffeners both in the webs and flanges, which improves the load-bearing capacity but makes the behavior more complicated. The considered panel is produced with and without web perforations. When web perforation is applied, it is located in the middle part of the web. The primary aim of web perforation is to enhance noise resistance, but it also has an influence on the static behavior. Because reliable design rules for web-perforated trapezoidal sheeting panels are not available, an experimental program is undertaken: panels with and without web perforations are tested in parallel. The test setup and specimens are designed to provide information on all the behavior modes. On the basis of the test results, it is possible to define the degrading effect of web perforation on the rigidity, bending, and shear resistances and on the resistance to direct transverse forces close to...

On the Stiffening the Shear Panels of Beam-to-Column Joints

In case of steel beam-to-column joints the bending resistance is significantly influenced by the shear strength of the web panel. The compression side resistance of the joint is limited by the web panel in shear component and in case of special geometries it can give a relatively strong limitation for the bending resistance of the whole joint. In typical frames the increase of the web thickness at the corner area is not an optimal solution from the fabrication point of view, this is why other reinforcement methods, such as application of stiffeners can result in more economical solutions. This paper has a focus on the effectiveness of the different shear panel reinforcement methods by the application of stiffeners.