A numerical study on shear buckling capacity of Z-section steel purlin with opening

De’nan, Fatimah; Choong, Kok Keong; Hashim, Nor Salwani; Ivan., Ng, Yu-ting,

doi:10.1063/1.5005664

Cited by 2 publications

(4 citation statements)

References 10 publications

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“…The result of shear capacity drop as the size of the opening gets larger is matched with the research of Basher et al (2009) which mentioned that the reduction of the ultimate shear strength is small and can be neglected when the opening size is small. The finding from De’nan et al (2017a, 2017b, 2017c, 2017d) also supports the result of this analysis. The reduction in shear strength exceeds 40% when the opening depth is half of the girder depth, irrespective of opening shape.…”

Section: Resultssupporting

confidence: 85%

“…There are different hinge positions formed for different perforation shapes which contribute to the failure of the beam section. The shear buckling modes for different opening shapes are similar and the shear buckling is significantly around the opening (De’nan et al , 2017a, 2017b, 2017c, 2017d).…”

Section: Introductionmentioning

confidence: 95%

“…The shear buckling capacity is divided by the self-weight of the model to obtain the efficiency of the section. The efficiency of an element is regarded as high if the ratio of its strength to its weight is high (De'nan et al, 2017a(De'nan et al, , 2017b(De'nan et al, , 2017c(De'nan et al, , 2017d.…”

Section: Introductionmentioning

confidence: 99%

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Structural parameters analysis for tapered steel section with perforation: effect of shear buckling behaviour

De’nan

Hashim

Sua

et al. 2021

WJE

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Purpose Due to economic development, tapered members are commonly applied in steel frames, namely, industrial halls, warehouses, exhibition centres, etc. In the design of cantilever steel beam structures in cities building design, tapering is introduced at the web profile to achieve utmost economy and suit the bending moment distributions. The cross-sectional shape of the beam is varied linearly to the moment gradient to achieve the target of higher efficiency with lower cost. Design/methodology/approach The shear deformation pattern and efficiency of the tapered steel section with perforation were investigated using finite element analysis. In addition, I-beam with web opening is studied numerically via LUSAS software for different parameters of tapering ratio, perforation shape and perforation size and perforation layout. Findings The highest contributing parameters for the highest shear buckling capacity and efficiency of the section were due to the small opening size and tapering ratio. Whilst the variation of perforation layout and spacing give a major effect on the shear strength and efficiency of the tapered steel section with perforation. Besides that, the highest efficiency model is found when the section is designed with 0.4 D diamond perforation in Layout 3 under a tapering ratio of 0.3. The critical shear buckling load and efficiency is reduced 14.39% and 13.91%, respectively, when perforations are added onto the tapered steel sections. Originality/value The tapered steel section with perforation has lower critical shear buckling load and efficiency compared to the tapered section without perforation but obtains a higher critical shear buckling load and efficiency compared to the uniform section without perforation.

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Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 95%

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Structural parameters analysis for tapered steel section with perforation: effect of shear buckling behaviour

De’nan

Hashim

Sua

et al. 2021

WJE

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“…From the results, it was figured out that, compared with other opening shapes, C-hexagon openings showed the least reduction in lateral torsional buckling capacity. Regarding of shear tests, De'nan et al [12] studied the behavior of Z-sections with holes under shear strength. It was found that diamond-shaped holes performed better under shear strength than circle-shaped holes.…”

Section: Introductionmentioning

confidence: 99%

The Performance of Cold-Formed Steel Members using Stiffened Perforations

Khater

El‐Boghdadi²,

Yossef³

2022

Journal of Engineering Research

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CFS sections are usually supplied with openings to adapt construction services. Nevertheless, the area lowering in the web influences their strengths. If stiffeners are provided near the web openings, the reduction in flexural capacity could be recovered. Therefore, this paper introduces a study on the CFS section with stiffened perforations. A finite element (FE) analysis was accomplished. The numerical model was verified versus experimental and numerical tests from prior research and then utilized in performing parametric studies. The influence of circular openings with various sizes and various stiffener lengths on the flexural capacity was examined in the nonlinear analysis. Depending on the findings of the study, it has been determined that the introduction of stiffened openings into the CFS members will result in the restoration of the original flexural capacity.

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A numerical study on shear buckling capacity of Z-section steel purlin with opening

Cited by 2 publications

References 10 publications

Structural parameters analysis for tapered steel section with perforation: effect of shear buckling behaviour

Structural parameters analysis for tapered steel section with perforation: effect of shear buckling behaviour

The Performance of Cold-Formed Steel Members using Stiffened Perforations

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