This paper is the first in a series of articles dealing with the study and analysis of
imperfections in thin-walled, cold-formed steel sections with modified cross-sectional …

In recent years, cold formed steel sections are used more and more as primary framing
components and as a secondary structural system. They are used as purlins and side rails …

In order to increase a stiffness of cold-formed steel (CFS) elements it is practised to built-up
the cross-section. In the analysed case, a main element is strengthened by adding extra …

Imperfections are modeled using actual values measured in situ. The method proposed in
the paper is based on the concept of developing the imperfections in series of eigenmodes …

Experimental and theoretical studies are carried out to investigate the behavior and strength
of cold-formed single lipped sigma columns. The local, distortional and overall geometric …

Recently, using of cold formed steel sections in constructions have shown rapid growth due
to their lightness, high strength and stiffness, fast and easy erection. Generally, Cold-formed …

Cold-formed steels are the thin steel of smooth surface having a thickness of 0.3–6 mm. The
cold-formed steel (CFS) construction is rapidly increasing day by day. These cold-formed …

In the paper numerical analysis of thin-walled purlins restrained by sheeting is carried out.
Stability phenomenon is analysed for different purlins' lengths and for two types of cross …

Cold-formed thin-walled Z-purlins and cladding systems are widely used in steel industrial
type buildings. In my research work I analysed the various components of cold-formed roof …

The paper describes the experimental investigation of the stabilization of the cold formed
thin-walled C-section purlins by sandwich panels. The aim of the paper is the qualitative …