Optimization of cross-section dimensions of structural members made of cold-formed profiles using compromise search

The object of this study is a structural member made from C-shaped cold-formed profile, investigated to search for optimal cross-sectional dimensions. parametric optimization task stated as the problem find dimensions under axial compression conditions, taking into account its post-buckling behavior (local buckling web and flanges, well distortional cross-section) requirements. In case, material consumption mechanical characteristics steel, design lengths member, were considered constant predefined. criterion optimality was maximization load-carrying capacity overall compression. solved using method exhaustive while applying developed software. Additionally, fixed steel consumption, compromise solutions searched that do not depend on thickness profile member. resulting profiles with are characterized by higher (to 24.45 % 22.19 %) at same compared offered manufacturer. Analysis reported results it possible devise recommendations ratios geometric members operating could be used both stage selection cross-sections profiles, in development effective assortments