Ultimate capacity of I-sections under combined loading – Part 2: Parametric studies and CSM design

2018

Thin-Walled Structures

Section: Csm For Cross-section Designmentioning

confidence: 99%

Numerical modelling and design of hot-rolled and cold-formed steel continuous beams with tubular cross-sections

2018

Thin-Walled Structures

“…The continuous strength method (CSM) is a newly developed deformation-based approach for steel design that provides an alternative treatment to cross-section classification and enables the effective exploitation of strain hardening. The CSM was originally developed for stainless steel structural elements [11][12][13], which exhibit a high degree of strain hardening, and the same concept has since been applied to structural carbon steel [14][15][16][17][18][19] and aluminium alloy [20,21] design. More recent advancements and developments of the CSM include its extension to circular hollow sections [22,23], cross-sections under combined loading [16,24,25], slender cross-sections [21,25,26], cross-sections at elevated temperatures [27] and composite structures [28,29].…”

Section: Introductionmentioning

confidence: 99%

The continuous strength method for the design of cold-formed steel non-slender tubular cross-sections

2018

Engineering Structures

Cold-formed steels typically exhibit a rounded stress-strain response with gradual yielding merging into strain hardening. This form of stress-strain curve is at odds with the elastic, perfectly plastic material model that underpins many of the provisions set out in current structural steel design standards. In particular, the beneficial influence of strain hardening on cross-section capacity is neglected. The continuous strength method (CSM) is a deformationbased design method that enables material strain hardening properties to be exploited, thus resulting in more accurate and consistent capacity predictions. The aim of this study is to extend the CSM to the design of cold-formed steel non-slender tubular cross-sections subjected to compression, bending and combined loading, and to verify the proposals through comparisons with existing test data from the literature and finite element results generated herein. The finite element models were first developed and validated against test results on cold-formed steel cross-sections collected from the literature. An extensive parametric study was then conducted Yun, X. and Gardner, L. (2018) The continuous strength method for the design of cold-formed steel non-slender tubular cross-sections. Engineering Structures, 175, 549-564. 2 to generate additional data over a wider range of cross-section geometries, slendernesses and loading conditions. The numerical results together with the experimental results were then compared with capacity predictions, calculated according to the current design rules in

show abstract

“…The aims of the numerical study were to capture the physical behaviour observed in the experiments and to investigate the cross-sectional resistance of hot-rolled steel I-sections under combined loading. The FE models were firstly validated against the test results and subsequently used to perform parametric studies, described in the companion paper [25], to generate additional data over a wide range of cross-section slenderness and loading combinations.…”

Section: Finite Element Modellingmentioning

confidence: 99%

“…12(a)-(f). The influence of material strain hardening on the cross-sectional resistance is carefully explored in the companion paper[25].…”

mentioning

confidence: 99%

Ultimate capacity of I-sections under combined loading – Part 1: Experiments and FE model validation

Journal of Constructional Steel Research

Boissonnade

2018

Self Cite