Theoretical and experimental research on web crippling of cold-formed flexural steel members

Bakker, M.C.M.; Stark, J.W.B.

doi:10.1016/0263-8231(94)90006-x

Cited by 31 publications

(25 citation statements)

References 4 publications

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“…Consequently, current standards [5,7] provide various empiric design equations for a given load case and particular cross-section geometry which were derived from regression analysis of existing test on different cold-formed carbon steel sections. Despite accurate plastic mechanism models based on yield line theory were derived for cold-formed carbon steel hat sections [9,10], their application is rather tedious for hand calculation purposes. Relevant research regarding these adjustments is summarized in Table 1 for cold-formed carbon steel.…”

Section: Introductionmentioning

confidence: 99%

Strength curves for web crippling design of cold-formed stainless steel hat sections

Bock

Real

2014

Thin-Walled Structures

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a b s t r a c tThe web crippling design guides are based on empirical adjustments of available test data. These equations differ from the basic concept underpinning most of the other instabilities, the so-called strength curves. This investigation presents a new design approach for web crippling design of stainless steel hat sections based on strength curves controlled by slenderness-based functions χ(λ). The effects of web crippling on such cross-sections were studied numerically and the obtained results were used to derive the design expressions. Comparisons with tests and FE data, and with design guides show that the proposed design approach provides more accurate web crippling resistance.

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Section: Introductionmentioning

confidence: 99%

Strength curves for web crippling design of cold-formed stainless steel hat sections

Bock

Real

2014

Thin-Walled Structures

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“…For short-span three-point bending tests, Bakker observed the rolling and yield-arc post failure modes [6]. Here, post-failure modes are defined as the observed yield line patterns after plastic initiation.…”

Section: Rolling and Yield-arc Post-failure Modesmentioning

confidence: 99%

“…Bakker [6] studied hat-section behaviour and discovered the rolling and yield-arc postfailure modes, which are equal to the two yield line patterns mentioned. These post-failure modes and their characteristics will be briefly presented.…”

Section: Introductionmentioning

confidence: 96%

Cross-section crushing behaviour of hat-sections (Part I: Numerical modelling)

Hofmeyer

2005

Thin-Walled Structures

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“…Relevant research includes the studies performed by Baehre (1975), Hetrakul and Yu (1978), Wing (1981), Packer (1984), Santaputra et al (1989), Studnicka (1990), Bhakta et al (1992), Prabhakaran (1993), Cain et al (1995), and Gerges (1997). In parallel with these studies on carbon steel, research was also conducted by Tsai (1987), Bakker and Stark (1994), Hancock (1992, 1995), Hofmeyer et al (2001) and Young and Hancock (2001) where analytical models for various types of cross-sections are proposed.…”

Section: Introductionmentioning

confidence: 99%

Statistical evaluation of a new resistance model for cold-formed stainless steel cross-sections subjected to web crippling

Bock

Real

2015

Int J Steel Struct

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This paper presents a statistical evaluation according to Annex D of EN 1990(2002 of a new resistance function for web crippling design of cold-formed stainless steel crosssections. This resistance function was derived in Bock et al. (2013) through the use of carefully validated numerical models with the aim to propose a design expression for stainless steel sections, which are currently designed following the provisions for coldformed carbon steel sections given in EN 1993EN -1-3 (2006. Although it was shown that the proposed design equation is appropriate for application to various stainless steels, the statistical uncertainties in material properties that the different types of stainless steels exhibit require an assessment of various partial safety factors. The statistical assessment showed that the proposed resistance function by Bock et al. (2013) requires adjustment to satisfy the safety level set out in EN 1993-1-4 (2006); A recalibration is performed herein. The web crippling design provisions given in EN 1993EN -1-3 (2006 and SEI/ASCE 8-02 (2002) American standard for application to stainless steel are also statistically evaluated herein. Comparison with test and numerical data showed that the predictions of the recalibrated resistance function are better suited and consistent than existing design provisions.

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Theoretical and experimental research on web crippling of cold-formed flexural steel members

Cited by 31 publications

References 4 publications

Strength curves for web crippling design of cold-formed stainless steel hat sections

Strength curves for web crippling design of cold-formed stainless steel hat sections

Cross-section crushing behaviour of hat-sections (Part I: Numerical modelling)

Statistical evaluation of a new resistance model for cold-formed stainless steel cross-sections subjected to web crippling

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