Behaviour and design of fixed-ended steel equal-leg angle section columns

Behzadi‐Sofiani, Behnam; Gardner, Leroy; Wadee, M. Ahmer; Dinis, Pedro Borges; Camotim, Dinar

doi:10.1016/j.jcsr.2021.106649

Cited by 33 publications

(7 citation statements)

References 30 publications

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“…This is contrary to the observations made in the previous studies [2], where the EC3 predicted buckling loads were conservative for fixed-ended equalleg angle section columns. It was shown in [4] that when bending about the minor axis is allowed, the buckling resistance of equal-leg angle section columns is reduced due to the shift of the effective centroid. However, this is not the case for angles cylindrically pinned about the major axis, since the shift of the effective centroid only occurs about the minor axis, owing to their symmetry about the major axis.…”

Section: Analysis and Discussion Of Resultsmentioning

confidence: 99%

“…Stainless steel equal-leg angle section columns with pinended support conditions have been studied in a number of previous investigations [4,[6][7][8][9][10][11][12][13][14], where they are focused on angle section columns pinned about the minor axis, the findings of which are described in [4]. To the best knowledge of the authors, there has been no experimental investigation reported on stainless steel equal-leg angle section members cylindrically pinned about the major axis, and subjected to compression or combined compression and bending.…”

Section: Review Of Previous Researchmentioning

confidence: 99%

“…Behzadi-Sofiani et al [2,3] recently developed new design equations for fixedended stainless steel angle section columns [2] and beams [3]. These new proposals were then used to establish a new approach for designing pin-ended stainless steel equal-leg angle section members subjected to compression and combined compression and minor-axis bending [4]. The aim of the current paper is to develop new design proposals for cylindrically-pinned stainless steel equal angle section members subjected to compression and combined compression and major-axis bending suitable for incorporation into EN 1993-1-4 [5].…”

Section: Introductionmentioning

confidence: 99%

“…New resistance functions for angle section members recently developed within the US [1] and European [2,3] design frameworks have led to substantial improvements in the consistency and accuracy of their loadcarrying capacity predictions. The behaviour and design of angles that are cylindrically pinned about the minor axis under combined loading was investigated recently by Behzadi-Sofiani et al [4]. Angles are often loaded eccentrically such that the point of action does not coincide with the cross-section centroid (see Figure 1).…”

Section: Introductionmentioning

confidence: 99%

“…Angle section members are used in a range of structures, such as towers and trusses alongside the bracing systems in buildings and bridges. Their structural behaviour continues to pose challenges, with current design provisions in international standards known to have significant limitations [1][2][3][4]. New resistance functions for angle section members recently developed within the US [1] and European [2,3] design frameworks have led to substantial improvements in the consistency and accuracy of their loadcarrying capacity predictions.…”

Section: Introductionmentioning

confidence: 99%

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Major‐axis buckling of pin‐ended stainless steel equal‐leg angle section members: FE modelling and design

Behzadi‐Sofiani,

Wadee,

Gardner

2023

ce papers

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The behaviour and design of cylindrically‐pinned stainless steel equal‐leg angle section members under compression and compression combined with strong‐axis bending are investigated herein. Numerical models are developed by means of shell finite element modelling formulated within ABAQUS and validated against experimental data. A numerical parametric study is then presented considering both hot‐rolled and cold‐formed stainless steel equal‐leg angle section columns alongside beam‐columns with a wide range of cross‐section and member geometries. Finally, new design proposals for pin‐ended stainless steel equal‐leg angle section members under compression and compression plus major‐axis bending are developed and verified against the results of physical experiments and numerical simulations. The proposed design rules are shown to offer substantially more accurate and consistent resistance predictions compared to existing codified design rules.

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Section: Analysis and Discussion Of Resultsmentioning

confidence: 99%

Section: Review Of Previous Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Major‐axis buckling of pin‐ended stainless steel equal‐leg angle section members: FE modelling and design

Behzadi‐Sofiani,

Wadee,

Gardner

2023

ce papers

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New Consistent Set of Design Equations for Equal‐leg Angle Sections and Members

et al. 2022

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Angles profiles have been used since the very beginning of the steel construction due to their easy production, transportation, and ability to be connected. However, they exhibit some specific features that clearly distinguish them from other types of common sections, as they are monosymmetric sections with very small constants in both torsion and warping, their bending capacity and radius of gyration around the weak axis are substantially lower compared to the strong axis ones, their legs are possibly susceptible to local buckling, their plastic resistances are significantly higher than their elastic ones and finally, due to the eccentric connection in one leg, they are also subjected to bending when used as single members. The above‐listed features confirm that existing common design rules for other mostly doubly symmetric type of sections cannot safely cover angle sections, what inevitably leads to the need for development of specific design provisions for angles. Therefore, extensive experimental, analytical, and numerical studies have been conducted to propose a complete and duly validated set of design rules covering all aspects of their design (classification, cross‐section and member resistance). The proposed rules will be included in the forthcoming version of EN1993‐3.

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