Numerical investigation into high strength Q690 steel columns of welded H-sections under combined compression and bending

Ma, Tianyu; Li, Guoqiang; Chung, Kwok Fai

doi:10.1016/j.jcsr.2018.01.008

Cited by 28 publications

(11 citation statements)

References 22 publications

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“…The shell element S4R [32] has been extensively used in previous numerical modelling of welded I-section steel components [11,19,33,34], and was also employed herein for simulating the S690 high strength steel welded I-section stub columns. analysis [11,19,28,[35][36][37][38]. Four initial local imperfection amplitudes, including the measured value ω0, and 1/10, 1/30 and 1/100 of material thickness t, were employed to factor the imperfection patterns for the purpose of assessing the sensitivity of the FE models to imperfections and seeking the most suitable local geometric imperfection amplitudes to be utilised in the parametric studies.…”

Section: Development Of Finite Element Modelsmentioning

confidence: 99%

“…Rasmussen and Hancock [4] performed stub column tests on S690 welded Isections to investigate their local buckling responses and compression resistances, while the flexural buckling behaviour and strengths of S690 welded I-section long columns were experimentally and numerically studied in [5][6][7][8][9]. Ma et al [10,11] carried out a testing and numerical simulation programme to examine the global stability of S690 welded I-section beam-columns subject to combined compression and bending. The brief review generally indicated that although there have been extensive studies on the member stability of S690 high strength steel welded I-section long columns and beam-columns, investigations into the local buckling behaviour of S690 welded I-section stub columns remain scarce, with the only study reported by Rasmussen and Hancock [4] in the early 1990s, and, to date, membrane residual stresses in S690 welded I-sections have not been measured.…”

Section: Introductionmentioning

confidence: 99%

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Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns

Sun

Liang

Zhao

2019

Journal of Constructional Steel Research

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Section: Development Of Finite Element Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns

Sun

Liang

Zhao

2019

Journal of Constructional Steel Research

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“…Having been successfully and widely utilised in previous numerical modelling of high strength steel welded I-section members [3,28,29], the four-node shell element S4R [27] was also employed herein for simulating S690 high strength steel welded I-section beams. The element size was selected upon a mesh sensitivity study examining a range of element sizes from 0.5t to 3t; it was generally found that an element size equal to the material thickness t led to accurate incorporation of the membrane residual stresses into the FE models and also resulted in both precise numerical results and adequate computational efficiency, and was thus assigned to each beam FE model.…”

Section: Development Of Finite Element (Fe) Modelsmentioning

confidence: 99%

In-plane bending behaviour and capacities of S690 high strength steel welded I-section beams

Sun

Liang

et al. 2019

Journal of Constructional Steel Research

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The present paper describes an in-depth experimental and numerical investigation into the inplane flexural behaviour and bending moment resistances of S690 high strength steel welded I-section beams. The experimental investigation was conducted on six different welded Isections fabricated from the same batch of 5 mm thick S700MC high strength steel hot-rolled plated by means of gas metal arc welding, and involved initial local geometric imperfection measurements and twelve in-plane four-point bending tests, with six performed about the crosssection major principal axes and another six conducted about the cross-section minor principal axes. Following the experimental study, a numerical investigation was performed, where the developed finite element models were firstly validated against the test results and then used to perform parametric studies to generate further structural performance data over a broader range of cross-section sizes. The obtained experimental and numerical results were carefully analysed 2 and then adopted to evaluate the accuracy of the existing slenderness limits (for classifications of plate elements and cross-sections) and local buckling design rules for S690 high strength steel welded I-sections in bending, as set out in the European, Australian and American standards. The results of the evaluation revealed that the codified slenderness limits are generally safe when used for the classification of the constituent plate elements of the examined S690 high strength steel welded I-section beams, except for that given in the American specification for slender/non-slender outstand elements in compression. All of the three considered design standards were shown to yield accurate cross-section bending moment capacity predictions for compact (Class 1 and 2) S690 high strength steel welded I-section beams bent about both the principal axes and non-compact (Class 3) S690 high strength steel welded I-section beams bent about the major principal axes, but resulted in a rather high level of conservatism in predicting the cross-section bending moment capacities for non-compact (Class 3) S690 high strength steel welded I-sections in bending about the minor principal axes and slender (Class 4) S690 high strength steel welded I-sections subjected to both major-axis bending and minor-axis bending.

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“…Research into the design of HSS beam-columns, especially those made 3 of welded I-sections, remains, however, relatively scarce. The only experimental investigations on HSS welded I-section beam-columns can be found in Yang et al [31] and Ma et al [32,33],…”

Section: Introductionmentioning

confidence: 99%

Structural behaviour and continuous strength method design of high strength steel non-slender welded I-section beam–columns

Tse¹,

Wang²,

Yun³

2021

Thin-Walled Structures

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Numerical investigation into high strength Q690 steel columns of welded H-sections under combined compression and bending

Cited by 28 publications

References 22 publications

Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns

Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns

In-plane bending behaviour and capacities of S690 high strength steel welded I-section beams

Structural behaviour and continuous strength method design of high strength steel non-slender welded I-section beam–columns

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