Stainless Steel Beam-Columns Behaviour

Abstract

There are several methods for considering the interaction between compression and bending for slender steel members. This is covered by the interaction formula and the general method, currently. For stainless steel, the structural design standards have been developed largely in-line and refer to carbon steel design guidelines. The current stainless steel interaction formula of axial force and bending moment given in EN 1993-1-4 was derived on limited results available. On the other hand, the general method may be used without any change for stainless steel according to the Eurocode despite the non-linear stress-strain behaviour, which obviously could lead to some drawbacks. Hence, the main objective of this paper is to compare the analysis results with existing Eurocode design formulas, the general method and some formula taken from experimental and parametric studies, showing their possible applicability, weaknesses and the need of further development. The conclusions are not applicable for stainless steel only, but they may be used for other non-linear materials such as aluminium alloys to some extent.

Nonlinear Behaviour, Design and Analysis of Steel Structures: Recent Findings and New Trends for the Next Generation of European Design Standards

“…The results of this study highlight some limits of the verification formulas recommended by EN1993:1-1 [4]. Jandera et al [5] investigated interaction of axial force and bending moment formula for stainless steel profiles. By means of comprehensive parametric finite element analyses, those authors compared the efficiency of EN 1993-1-4 [6] with the recent state of the art, highlighting the limits of the code.…”

SHS and RHS stainless steel slender beam-columns

“…So, the minor axis deflection is prevented. Current codified design procedure provided by EN 1993EN -1-4 (2006 and other approaches developed by several researchers are summarized and evaluated in Jandera et al (2017). Generally, the results show some deviation.…”

Stainless Steel SHS and RHS Beam‐column Design Proposal

“…There were several studies carried out recently and focused on the development of safe and accurate stainless steel beam-column design procedure. However, evaluation made by Jandera et al [3] shown that none of them is general and accurate enough. Later, a new proposal was developed by Zhao et al [4].…”

“…by Afshan and Gardner [6]. Most importantly, a new formula for the interaction factor kCSM calculation was derived, see Equation (3).…”