Numerical Study of Buckling Behaviour of Cold-formed C-channel Steel Purlin with Perforation

Ling, Jin Ying; Kong, Shin Lin; De’nan, Fatimah

doi:10.1016/j.proeng.2015.11.140

Cited by 11 publications

(7 citation statements)

References 10 publications

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“…Different approaches of determining the critical elastic local and distortional buckling moments including the influence of holes for the built-up open and closed sections were compared and discussed. The influence of web opening on the lateral-torsional buckling behaviour of CFS channel-section purlins was also examined by Ling et al [18] using finite element method. More recently, extensive research has been carried out on the load bearing capacity of rack uprights subjected to combined axial and bending loads using different analysis methods, including design codes [19], experimental [20] and finite element numerical [21][22][23] methods.…”

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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“…The type of failure mode, which will govern the maximum strength of the member, depends on the shape and dimensions of the cross section, the eccentricity of applied load [5]. We solve this part of equation by virtual work method according to: 1-In determining the resistance of a cross section, the effective width of a compression element should be based on compressive stress σ com,Ed in the element when the cross section resistance is reached; 2-The cross sections are used in design: gross cross section and effective cross section of which the function of loading (compression, major axis bending).…”

Section: A: Torsional Bucklingmentioning

confidence: 99%

Numerical Investigation of Deflection Prediction of Cold Formed C- Section Roof Purlins

2019

International Journal of Advances in Structural and Geotechnica

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This paper aims to develop equations to ease the calculation of the deformation of C-shaped purlins loaded with live, dead and wind loads. A theoretical research model is created to simulate the behavior of part of a roof steel structure. The model is loaded after connecting its parts with connections similar to that in a steel roof, and the results are extracted using the finite element method (FEM). These results are then used in statistical equations to develop new equations that calculate the values of deformation for the C-shaped sections; the values of vertical, horizontal and rotational displacement are calculated [1], and the results are compared to those in reality. One equation is developed to calculate the value of the horizontal displacement with a total number of specimens of 1055, all of different dimensions, with a degree of confidence of 92%. The specimens are then increased to 2016 specimens with different dimensions, and 3 detailed equations are developed each for a different type of displacement; horizontal, vertical and rotational, with a degree of confidence of 95%. A detailed explanation is provided for how to calculate the deformation in the purlins and how to obtain its value statistically for each different type of displacement, with high accuracy, enabling it to be used in the stage of preliminary design.

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“…Cold-formed steel (CFS) members with web holes have been used widely in the recent past due to their lightweight structure, cost-effective advantages over the entire construction cycle, structural efficiency, practicality, etc. They are often employed as columns [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], beams [3,4,[17][18][19][20][21][22][23][24][25][26][27][28][29][30][31], and the load-bearing structures of sheathed panel shear walls, light frame strap-braced walls, partition walls, curtain/facade walls, floor joists, etc. Mainly, the C-, Z-, and Σ-sections and their varieties are used.…”

Section: Introductionmentioning

confidence: 99%

“…This issue has been addressed by adding stiffeners along the section [9,16,32] and hole edges [4,[13][14][15]22,28,[33][34][35][36]. Since the behaviour of CFS elements is dictated by instability effects rather than the yield of the material, the size and location of web holes along the element can prove to be an important factor [6,8,14,17,18,21,[23][24][25]28,30,[37][38][39][40][41][42][43][44][45][46]. Previous research was mainly focused on short-and medium-length elements, s they are prone to distortional and local bucking.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Web Holes on the Behaviour of Cold-Formed Steel Members: A Review

et al. 2022

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The use of cold-formed steel (CFS) members in structural engineering has been on the increase recently due to a wide range of benefits. The placement of electrical and/or plumbing installations within the floor or wall thickness requires that members are being manufactured with holes along the web, inevitably affecting their resistance. This article aims at providing a useful and comprehensive overview of the existing literature regarding CFS members with web holes. Experimental and numerical research on CFS members with web holes subjected to pure compression, bending, web crippling and shear is outlined and discussed. Although research on these types of members date back to the early 1970s, the greatest progress in the research field of CFS members with web holes was achieved during the past 15 years; hence, mostly the research conducted during this period was addressed. Additionally, design proposals are summarised for each of the aforementioned stress states. A brief description of the main concepts of design presented in four principal design codes, as well as numerical solution methods for predicting global, local, and distortional buckling modes, is also presented, aiming to collect the accessible up-to-date knowledge of CFS members with holes and identify areas that were modestly covered by previous research.

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Numerical Study of Buckling Behaviour of Cold-formed C-channel Steel Purlin with Perforation

Cited by 11 publications

References 10 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

Numerical Investigation of Deflection Prediction of Cold Formed C- Section Roof Purlins

The Influence of Web Holes on the Behaviour of Cold-Formed Steel Members: A Review

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