Optimum Shapes and Sizes on Torsion Behaviour of I-Beam with Web Opening

De’nan, Fatimah; Hashim, Nor Salwani

doi:10.1051/matecconf/20164702009

Cited by 2 publications

(3 citation statements)

References 13 publications

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“…Many design guidelines for cold-formed steel members have been established (British Standard BS5950-5, 1998;EN1993-1-1, 2005. Substantial research about section with opening has been performed over many years.…”

Section: Introductionmentioning

confidence: 99%

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The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

Jin

De’nan

Choong

et al. 2023

WJE

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Purpose Cold-formed steel has been used extensively as secondary elements such as purlins and girts in building frames. Purlin is critical to the structure of the roof because it supports the weight of the roof deck and aids to make the entire roof structure more rigid. Furthermore, cold-formed steel purlin is a replacement for wood purlin because steel purlins are light weight and more economical. Hence, the purpose of this study to investigate the effect of opening due to torsion behaviour. Design/methodology/approach This analysis used cold-formed steel hat purlin with and without openings (WOs) under different opening shape, location and spacing by using finite element LUSAS software. Findings The finite element results showed that purlin with openings had higher angle of rotation than section WO, with a percentage difference of not more than 6%. When the opening was located at mid-span, the angle of rotation reduced. Angle of rotation increased when the opening spacing increased. Number of openings also affected the torsional behaviour of the purlin. Five opening shapes, which were circle, diamond, C-hexagon, square and elongated circle, were studied. Among all the shapes, purlin with diamond opening was more resistance to torsion. Originality/value The use of cold-formed steel section with web openings (rectangular or circular) is a practical solution when it is required to pass service ducts through the structural member. However, the presence of opening gives minor effect on the structural behaviour of cold-formed steel hat purlin.

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Section: Introductionmentioning

confidence: 99%

“…Besides that, it was concluded that the optimum opening size was 0.5 D compared with 0.6 and 0.7 D (De’nan and Hashim, 2016). Section with C-hexagon openings showed lower torsional angles when compared to hexagon, octagon, circular and square openings.…”

Section: Introductionmentioning

confidence: 99%

The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

Jin

De’nan

Choong

et al. 2023

WJE

View full text Add to dashboard Cite

show abstract

“…Previously, the optimize web sizes, layout and shapes of opening have been found by other researchers to know the stress distribution pattern in the surrounding of the web opening (De'nan and Hashim, 2016). Besides that, the web opening can also be applied for the cross-passing of utility system in the floors (Siddh and Pachpor, 2011).…”

Section: Introductionmentioning

confidence: 99%

Development of efficiency analysis for I-beam steel section with web opening via numerical method

́nan

Hashim

Singh

2022

WJE

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Purpose Due to the enormous increase in economic development, structural steel material gives an advantage for the construction of stadiums, factories, bridges and cities building design. The purpose of this study is to investigate the behaviour of bending, buckling and torsion for I-beam steel section with and without web opening using non-linear finite element analysis. Design/methodology/approach The control model was simulated via LUSAS software with the four main parameters which included opening size, layout, shape and orientation. The analysis used a constant beam span which is 3.5 m while the edge distance from the centre of the opening to the edge of the beam is kept constant at 250 mm at each end. Findings The analysis results show that the optimum opening size obtained is 0.65 D while optimum layout of opening is Layout 1 with nine web openings. Under bending behaviour, steel section with octagon shapes of web opening shows the highest yield load, yield moment and thus highest structural efficiency as compared to other shapes of openings. Besides, square shape of web opening has the highest structural efficiency under buckling behaviour. The lower buckling load and buckling moment contribute to the higher structural efficiency. Originality/value Further, the square web opening with counter clockwise has the highest structural efficiency under torsion behaviour.

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Optimum Shapes and Sizes on Torsion Behaviour of I-Beam with Web Opening

Cited by 2 publications

References 13 publications

The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

Development of efficiency analysis for I-beam steel section with web opening via numerical method

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