TY - JOUR
T1 - Flexural behaviour of cold-formed steel square and rectangular hollow sections with moderate heat-treatment
AU - Pannuzzo, Paola
AU - Chan, Tak Ming
N1 - Funding Information:
The authors sincerely acknowledge the support received from the Chinese National Engineering Research Centre for Steel Construction (Hong Kong Branch) at The Hong Kong Polytechnic University.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/10
Y1 - 2022/10
N2 - 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.
AB - 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.
KW - Bending tests
KW - Cold-forming with heat-treatment
KW - Cross-section classification
KW - Finite element modelling
KW - Structural hollow section
UR - http://www.scopus.com/inward/record.url?scp=85136140248&partnerID=8YFLogxK
U2 - 10.1016/j.jcsr.2022.107454
DO - 10.1016/j.jcsr.2022.107454
M3 - Journal article
AN - SCOPUS:85136140248
SN - 0143-974X
VL - 197
JO - Journal of Constructional Steel Research
JF - Journal of Constructional Steel Research
M1 - 107454
ER -