Assessment of the Interaction Conditions of I‐shaped Cross‐Sections

In this research, the interaction conditions for double-symmetric I-sections without fillets are analysed. Interaction necessary determination of plastic load-bearing capacity, which is preferred over elastic capacity economic reasons. literature, standards and current research projects, different My, Mz Mω available. However, analyses their accuracy missing. This intends to determine deviations each condition using numerical approaches. The verified on basis extensive parameter studies. study shows that solutions available in EN 1993-1-1 prEN lead uneconomical results. Furthermore, application according 1993-6 certain limits have be considered avoid a non-conservative design. paper, new extended exponent method presented. simple, economical conservative solution.