Investigation of cold-formed steel structural members with perforations of different arrangements subjected to compression loading

Kulatunga, Muditha; Macdonald, Martin

doi:10.1016/j.tws.2013.02.014

Cited by 55 publications

(27 citation statements)

References 12 publications

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“…Material tests and imperfection measurements for the tested specimens were also performed. The effects of perforation positions on the load capacity of column members of lipped channel cross-section were investigated by Kulatunga and Macdonald [14] using both experimental and finite element numerical methods. The influence of perforations of various shapes on the buckling behaviour of CFS columns of lipped channel cross-section was examined by Kulatunga et al [15] using finite element analysis method.…”

Section: Introductionmentioning

confidence: 99%

Distortional buckling of perforated cold-formed steel channel-section beams with circular holes in web

Yuan

2017

International Journal of Mechanical Sciences

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This paper presents the numerical and analytical investigations on the distortional buckling of perforated cold-formed steel channel-section beams with circular holes in web. The numerical investigation involves the use of finite element methods. In the analytical analysis the distortional buckling model recommended in EN1993-1-3 is employed. The influence of the web holes on the distortional buckling behaviour and corresponding critical stress and moment of perforated cold-formed steel channel-section beams are discussed. Finally, a simple analytical formulation is proposed for evaluating the effect of hole size on the reduction of critical stress and critical moment of the channel-section beams with circular holes in web.

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Section: Introductionmentioning

confidence: 99%

Distortional buckling of perforated cold-formed steel channel-section beams with circular holes in web

Yuan

2017

International Journal of Mechanical Sciences

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“…On the basis of current reports [6,7], there were nine input neurons representation of nine different perforated sections parameters and one output neuron, that is, ultimate load, all listed in Table 4.…”

Section: E Relational Mapping Of Predictive Model Datamentioning

confidence: 99%

“…However, unlike traditional civil buildings or commercial facilities, the main load-bearing members in storage racks such as columns usually comprise regular arrays of perforations in length direction, which enable beams to be hung by connectors at adjustable heights along with the bracings to constitute the huge threedimensional framework ( Figure 1). e ultimate load capacity of rack column can vary with perforation size, shape, position, and orientation [6,7]. e stability behavior is one of the most prime importance for decision-making of thinwalled steel racks design.…”

Section: Introductionmentioning

confidence: 99%

Data‐Driven Decision‐Making in the Design Optimization of Thin‐Walled Steel Perforated Sections: A Case Study

Lyu

Song

et al. 2018

Advances in Civil Engineering

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The rack columns have so distinctive characteristics in their design, which have regular perforations to facilitate installation of the rack system that it is more difficult to be analyzed with traditional cold-formed steel structures design theory or standards. The emergence of industrial “big-data” has created better innovative thinking for those working in various fields including science, engineering, and business. The main contribution of this paper lies in that, with engineering data from finite element simulation and physical test, a novel data-driven model (DDM) using artificial neural network technology is proposed for optimization design of thin-walled steel specific perforated members. The data-driven model based on machine learning is able to provide a more effective help for decision-making of innovative design in steel members. The results of the case study indicate that compared with the traditional finite element simulation and physical test, the DDM for the solving the hard problem of complicated steel perforated column design seems to be very promising.

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“…Simplified methods for approximating local, distortional and global elastic critical buckling loads of PCFS columns and beams were developed by Moen and Schafer [2]. Kulatunga and Macdonald [13] conducted a finite element analysis using ANSYS for PCFS columns, and the corresponding accuracy of the results was verified by using experimental and theoretical results. It is showed that the perforations can influence the ultimate load of PCFS columns under compression.…”

Section: Introductionmentioning

confidence: 99%

An analytical solution of distortional buckling resistance of cold-formed steel channel-section beams with web openings

Kim

Yuan

et al. 2019

Thin-Walled Structures

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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.

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Investigation of cold-formed steel structural members with perforations of different arrangements subjected to compression loading

Cited by 55 publications

References 12 publications

Distortional buckling of perforated cold-formed steel channel-section beams with circular holes in web

Distortional buckling of perforated cold-formed steel channel-section beams with circular holes in web

Data‐Driven Decision‐Making in the Design Optimization of Thin‐Walled Steel Perforated Sections: A Case Study

An analytical solution of distortional buckling resistance of cold-formed steel channel-section beams with web openings

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