Ultimate Behaviour of Trapezoidal Steel Sheets in Bending

A systematic analysis of existing trapezoidal steel sheets commonly used in the market is performed in order to compare their carrying capacity at the light of their ultimate behaviour. The complete investigation has been developed both from theoretical and experimental points of view. In this paper, the description of the experimental techniques, the numerical simulation of the obtained results as well as the exploitation of these data in order to check the codified design rules are reported

The Influence of the Aspect Ratio on the Lateral Response of the Sheathed Cold Formed Steel Walls

The influence of the aspect ratio on the lateral response of cold formed steel walls is analyzed by three design methodologies. In particular the prediction provided by the AISI Lateral Design, that is at the moment the main document for the design of CFS buildings under horizontal loads, is compared with the results obtained by applying the principles of mechanics and with those provided by non-linear finite element models. This paper presents and discusses in terms of strength and stiffness the validity of the different design methodologies in case of non-conventional wall aspect ratios comparing the numerical results with available experimental data