Design of web-tapered steel beams against lateral-torsional buckling through a stiffness reduction method

Kucukler, Merih; Gardner, Leroy

doi:10.1016/j.engstruct.2019.04.008

Cited by 33 publications

(28 citation statements)

References 30 publications

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“…Finite element models of both hot-rolled and cold-formed stainless steel plates were created. The four-noded reduced integration general purpose shell finite element S4R [16], which has been successfully adopted for similar previous applications [20][21][22][23][24], was used to create all the finite element models. The element size was taken as 20 mm by 20 mm (i.e.…”

Section: Development Of Finite Element Modelsmentioning

confidence: 99%

Local buckling of stainless steel plates in fire

Xing

Kucukler

Gardner

2020

Thin-Walled Structures

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Section: Development Of Finite Element Modelsmentioning

confidence: 99%

Local buckling of stainless steel plates in fire

Xing

Kucukler

Gardner

2020

Thin-Walled Structures

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“…The finite element analysis software Abaqus [21] was employed in this study to perform the numerical simulations of the structural response of stainless steel I-section beam-columns at elevated temperatures. The four-noded reduced integration general purpose shell finite element S4R, which has been successfully used for similar previous applications [22][23][24], was employed to create all the finite element models. Shell elements were used in favour of beam elements to ensure that both local and global instability effects could be explicitly captured in the models.…”

Section: Development Of Finite Element Modelsmentioning

confidence: 99%

Stability of Stainless Steel I-Section Beam-Columns at Elevated Temperatures

Kucukler

Xing

Gardner

2020

Int. J. Str. Stab. Dyn.

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With the growing use of stainless steel in the construction and offshore industries, there is an increasing interest and need to study the performance of stainless structures at elevated temperatures. The behavior and design of stainless steel I-section beam-columns in fire is investigated in this paper, addressing a scarcity of previous research on this topic. Finite element (FE) models of stainless steel beam-columns, able to replicate their response at elevated temperatures, are created and validated; the validated models are then used to perform parametric studies to generate extensive benchmark structural performance data. The design rules set out in the European structural steel fire design standard EN 1993-1-2 are assessed and shown to provide rather inaccurate and often unsafe ultimate strength predictions for stainless steel I-section beam-columns in fire. New fire design rules for stainless steel beam-columns are put forward. It is shown that the new proposals are able to offer improved accuracy and design efficiency relative to the EN 1993-1-2 beam-column design rules. The reliability of the proposed design rules is also verified on the basis of the fire design reliability criteria set out by Kruppa [Eurocodes–Fire parts: Proposal for a methodology to check the accuracy of assessment methods, CEN TC 250, Horizontal Group Fire, Document no: 99/130 (1999)], thereby demonstrating the suitability of the proposed design rules for inclusion in the upcoming revised version of EN 1993-1-2.

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“…Denoted as S4R in the Abaqus element library, a four-noded, reduced integration shell element able to account for transverse shear deformations and membrane stresses was utilised to create the finite element models in this study. This element type has previously been used to replicate the structural response of steel elements in similar applications [38][39][40][41][42]. In the finite element models, two planes of symmetry at mid-span and for half of the cross-section were exploited to improve the computational efficiency by using the quarter models of CHS members as shown in Fig.…”

Section: Element Type and Modelling Assumptionsmentioning

confidence: 99%