TY - JOUR
T1 - An analytical solution of distortional buckling resistance of cold-formed steel channel-section beams with web openings
AU - Kim, Boksun
AU - Yu, N
AU - Yuan, Wei bin
AU - Li, Long yuan
AU - Yu, F
PY - 2019/2
Y1 - 2019/2
N2 - Circular holes can be commonly found in the web of cold-formed steel beams to accommodate services such as electric wires and pipelines. The presence of holes will reduce the critical buckling stress of the beams. Hancock proposed solution for determining the distortional critical stress of channel section beams, but limited to the sections without holes. This paper presents an analytical study on the distortional buckling of cold-formed steel channel-section beams with circular holes in the web. Hancock's solution has been modified to derive a simple formulation for approximating the elastic critical stress and moment of distortional buckling of the channel-section beams with circular holes in the web, which are compared with those from the finite element buckling analysis using ANSYS. Finally, the influence of multiple holes on the distortional buckling behaviour and corresponding elastic buckling stress of beams in bending is discussed.
AB - Circular holes can be commonly found in the web of cold-formed steel beams to accommodate services such as electric wires and pipelines. The presence of holes will reduce the critical buckling stress of the beams. Hancock proposed solution for determining the distortional critical stress of channel section beams, but limited to the sections without holes. This paper presents an analytical study on the distortional buckling of cold-formed steel channel-section beams with circular holes in the web. Hancock's solution has been modified to derive a simple formulation for approximating the elastic critical stress and moment of distortional buckling of the channel-section beams with circular holes in the web, which are compared with those from the finite element buckling analysis using ANSYS. Finally, the influence of multiple holes on the distortional buckling behaviour and corresponding elastic buckling stress of beams in bending is discussed.
UR - https://pearl.plymouth.ac.uk/context/secam-research/article/1202/viewcontent/An_20analytical_20solution_20of_20distortional_20buckling_20resistance_20of_20cold_form_20steel_20channel_sesction_20beams_20with_20web_20openings_20by_20Yu_20et_20al.pdf
U2 - 10.1016/j.tws.2018.11.012
DO - 10.1016/j.tws.2018.11.012
M3 - Article
SN - 0263-8231
VL - 0
JO - Thin-Walled Structures
JF - Thin-Walled Structures
IS - 0
ER -