Shear behaviour and design of doubly symmetric hollow flange beam with web openings

Chandramohan, D.; Kanthasamy, Elilarasi; Gatheeshgar, Perampalam; Poologanathan, Keerthan; Fareed, Ishqy; Suntharalingam, Thadshajini; Thirunavukkarasu, Kajaharan

doi:10.1016/j.jcsr.2021.106836

Cited by 14 publications

(7 citation statements)

References 24 publications

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“…The collected data set comprised web hole ratios ranging from 0.15 to 0.8. The results with web hole ratios greater than 0.8 were excluded from the database because such high ratios can cause the formation of hinges at the top and bottom flange, leading to a Vierendeel mechanism [8,10]. EN 1993-1-3 [13] states that it is possible to approximate the design shear resistance of a CFS member (𝑉 𝑏,𝑅𝑑 ) using the following equation.…”

Section: Data Collectionmentioning

confidence: 99%

“…Two design approaches pertaining to the depth of the hole and the area of the hole have been proposed for CFS lipped channel beams with non-circular web holes [9]. Chandramohan et al [10] conducted numerical analysis to investigate the shear behaviour of doubly symmetric rectangular hollow flange beams (RHFB) with circular web holes. This study proposed new shear reduction factor equations based on the direct strength method.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Eurocode 3 Shear Design Provisions for Cold‐Formed Steel Beams with Web Holes

Gatheeshgar,

Bock,

Chandrasiri

et al. 2023

ce papers

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Cold‐formed steel beams are often provided with web holes to accommodate service conduits. These web holes result in reduced structural strength. Accurate estimation of the structural strength, including shear strength, is crucial during the design phase. There are a lot of studies available in the literature investigating the shear strength reduction in cold‐formed steel beams due to web holes. However, the experiments and parametric finite element results were not assessed against Eurocode 3 shear design provisions. Therefore, the shear design of cold‐formed steel beams with web holes is investigated herein. Existing experimental and parametric finite element analysis data on cold‐formed steel beams with circular web holes were collected from the literature. The accuracy of the current Eurocode 3 shear design provisions was then assessed using the collected data. The comparisons showed that the current Eurocode 3 shear design provisions were not suitable to estimate the shear strength of cold‐formed steel beams with web holes. Finally, Eurocode 3 shear design provisions are extended to capture the effect of web holes and verified against the available shear tests and finite element results. It was found that the new extended shear design proposal offers improved accuracy and consistency in shear strength predictions.

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Section: Data Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Eurocode 3 Shear Design Provisions for Cold‐Formed Steel Beams with Web Holes

Gatheeshgar,

Bock,

Chandrasiri

et al. 2023

ce papers

Self Cite

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show abstract

“…On that account, bilinear model was preferred to state the stress-strain behaviour of CFS in the numerical modelling. Considering the recent past research studies [22][23][24], which investigated the behaviour of CFS sections, an elastic-perfectly plastic material was chosen with nominal yield strength to model SupaCee section. Material properties such as Web, 5 mm x 5 mm mesh size…”

Section: Materials Propertiesmentioning

confidence: 99%

“…Table 4 illustrates parametric plan of intended FEA. [24]. In addition, Pham and Hancock [15] investigated the shear behaviour of SupaCee sections.…”

Section: Validation Of Finite Element Modelmentioning

confidence: 99%

Shear performance of SupaCee sections with openings: Numerical studies

Thirunavukkarasu

Kanthasamy

Poologanathan

et al. 2022

Journal of Constructional Steel Research

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“…Более значительные отходы неизбежны при изготовлении перфобалок из гнутых швеллеров с одинарной симметрией сечения (monosymmetric) и таких же двутавров с двойной симметрией сечения (doubly symmetric) (рис. 2) 2 [11] для легких стальных тонкостенных конструкций (ЛСТК), где основным конструкционным материалом служат гнутые профили и профилированные листы из оцинкованного листового проката разных толщин не более 4 мм [12]. Экспериментальные исследования опытных образцов гнутых профилей с одинарной симметрией сечения (monosymmetric), включая швеллерных и С-образных термопрофилей, а также их сравнение с конечно-элементным (цифровым) моделированием (рис.…”

Section: Introductionunclassified

Optimization of channels and I-shaped bended closed profiles with perforated walls

Marutyan

2022

Struct. Mech. of Eng. Const. and Build

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The article presents a continuation of the optimization of channel and I-shaped bended closed profiles (BCP) with tubular flanges and perforated walls made of rolled sheet products of both equal and different thicknesses. Such profiles are designed for light steel thin-walled structures (LSWS), which are distinguished by improved technical and economic indicators and mass demand in industrial and civil construction, which confirms the relevance of their further development. The purpose of the study is to show that the characteristics of LSWS can be further improved by shaping profiles, combining straight and round outlines of closed and open contours in a composite section, including their perforation. Through experimental design studies, solving optimization problems and variant design of the BCP, their design sections with a maximum margin of bending strength with a minimum mass have been refined. The originality of technical solutions is confirmed by patent examination. The channel BCP has extreme weight and strength with a relative height of cutouts in the wall of 1/1.87 and a ratio of width and height dimensions of 1/4.32. When the thickness of the shelves is 2 times the wall thickness, the strength and mass of the I-shaped BCP are extreme at a relative height of cutouts of 1/1.23 and a ratio of dimensions of 1/4.17, and when the thickness of the shelves is 0.6 of the wall thickness, the strength and mass of the BCP are extreme with a cutout height of 1/1.73 and a size ratio of 1/5.22. If the thicknesses of the shelves and the wall are equal, then the strength and mass of the BCP is extreme at a cutout height of 1/1.46 and a size ratio of 1/3.17.

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Shear behaviour and design of doubly symmetric hollow flange beam with web openings

Cited by 14 publications

References 24 publications

Assessment of Eurocode 3 Shear Design Provisions for Cold‐Formed Steel Beams with Web Holes

Assessment of Eurocode 3 Shear Design Provisions for Cold‐Formed Steel Beams with Web Holes

Shear performance of SupaCee sections with openings: Numerical studies

Optimization of channels and I-shaped bended closed profiles with perforated walls

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