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Flexural behaviour of cold-formed steel square and rectangular hollow sections with moderate heat-treatment
Abstract This paper discusses the flexural behaviour of cold-formed square and rectangular hollow steel sections (SHSs and RHSs) with subsequent heat-treatment through experimental and numerical investigations. Firstly, an experimental programme comprising tensile coupon tests on flat and corner regions and three-point bending beam tests were conducted. A total of 12 specimens were tested under monotonic bending loads, covering a variety of section slenderness. Failure modes, moment-rotation curves and plastic hinge lengths have been evaluated highlighting the effect of the web-flange interaction on rotation capacity. Successively, experimental results were combined with numerical FE results to assess the corresponding moment and deformation capacities. Current cross-section classification limits given in Eurocode 3 and AISC 360–16 were assessed and new limits has been proposed.
Highlights Flexural behaviour of cold-formed hollow section with subsequent heat-treatment was investigated. Twelve beam specimens were tested in three-point simply-supported configuration. Validated FE models were adopted for parametric investigation. Relation between rotation capacity and cross-section slenderness was proposed. New cross-section limits were proposed highlighting the improved ductility.
Flexural behaviour of cold-formed steel square and rectangular hollow sections with moderate heat-treatment
Abstract This paper discusses the flexural behaviour of cold-formed square and rectangular hollow steel sections (SHSs and RHSs) with subsequent heat-treatment through experimental and numerical investigations. Firstly, an experimental programme comprising tensile coupon tests on flat and corner regions and three-point bending beam tests were conducted. A total of 12 specimens were tested under monotonic bending loads, covering a variety of section slenderness. Failure modes, moment-rotation curves and plastic hinge lengths have been evaluated highlighting the effect of the web-flange interaction on rotation capacity. Successively, experimental results were combined with numerical FE results to assess the corresponding moment and deformation capacities. Current cross-section classification limits given in Eurocode 3 and AISC 360–16 were assessed and new limits has been proposed.
Highlights Flexural behaviour of cold-formed hollow section with subsequent heat-treatment was investigated. Twelve beam specimens were tested in three-point simply-supported configuration. Validated FE models were adopted for parametric investigation. Relation between rotation capacity and cross-section slenderness was proposed. New cross-section limits were proposed highlighting the improved ductility.
Flexural behaviour of cold-formed steel square and rectangular hollow sections with moderate heat-treatment
Pannuzzo, Paola (author) / Chan, Tak-Ming (author)
2022-07-28
Article (Journal)
Electronic Resource
English
Flexural behaviour of hot-finished high strength steel square and rectangular hollow sections
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Flexural behaviour of hot-finished high strength steel square and rectangular hollow sections
| British Library Online Contents | 2016
Flexural behaviour of hot-finished high strength steel square and rectangular hollow sections
| Online Contents | 2016
Flexural behaviour of hot-finished high strength steel square and rectangular hollow sections
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