Experimental investigation for the behaviour of battened beam-columns composed of four equal slender angles

Aghoury, M.A. El; Salem, A.; Hanna, M.T.; Amoush, E.A.

doi:10.1016/j.tws.2010.03.007

Cited by 31 publications

(17 citation statements)

References 5 publications

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“…Results of the numerical finite element model have been verified by comparing them with the experimental results in [2,3]. Some of these comparisons are listed in Table 1, for columns loaded uni-axially as well as bi-axially.…”

Section: Model Descriptionmentioning

confidence: 98%

“…El Aghoury et al carried out [2] experimental investigation for the behavior of battened beam-columns composed of four equal slender angles; where test specimens were loaded vertically by testing machine with 250 kN capacity. The four equal angles comprising the specimen were assembled by bolted battened plates at equal intervals (L z ) from center-to-center of the batten plates throughout the specimen length.…”

Section: Previous Experimental Investigationmentioning

confidence: 99%

“…Imperfections are classified into geometric and material imperfections (residual stresses). Author [2,3] measured the geometric imperfections of 20 specimens. The notation of geometrical imperfections includes all the shape variations in structural members with reference to their ideal geometry.…”

Section: Effect Of Imperfectionsmentioning

confidence: 99%

“…Nevertheless, postbuckling strength of thin walled sections is often considered in the design to provide economic design either by using the effective width approach or direct strength method [1]. M. A. El Aghoury et al, [2,3], investigated experimentally the behavior of axially loaded battened columns composed of four cold formed angles. Moreover, M. A. El Aghoury et al, [4], developed a three dimensional nonlinear finite element model using thin shell element to investigate theoretically the flexural behavior and resistance of battened beams composed of four equal cold formed angles subjected to uniform bending moment.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Strength of cold formed battened columns subjected to eccentric axial compressive force

Aghoury

Salem

Hanna

et al. 2015

Journal of Constructional Steel Research

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Section: Model Descriptionmentioning

confidence: 98%

Section: Previous Experimental Investigationmentioning

confidence: 99%

Section: Effect Of Imperfectionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Strength of cold formed battened columns subjected to eccentric axial compressive force

Aghoury

Salem

Hanna

et al. 2015

Journal of Constructional Steel Research

Self Cite

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“…A combination of an equivalent slenderness ratio and limitations to the slenderness ratio of the main members between batten plates (interconnectors) are provided. El Aghoury et al [3] studied the effect of the interaction between the leg outstands width-thickness ratio, the angle overall slenderness ratio, and the overall member slenderness ratio on the ultimate capacity of battened columns composed of four equal slender angles. Georgieva et al [5] studies on built-up CFS members showed, however, that along with buckling, fastener flexibility also affects the member stability and strength, especially when bolts are used to interconnect the profiles and clearances are provided to ensure ease of assembly.…”

Section: Literature Reviewmentioning

confidence: 99%

An Investigation of the Compressive Strength of Cold-Formed Steel Built up Channel Sections

Ananthi

Palani

Iyer

2014

Advances in Structural Engineering

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Cold-formed steel members have been used extensively in low and midrise residential building construction. The usage of cold-formed steels as primary structural members has been increased due to its high load to weight ratio. Coldformed steel built-up sections are commonly used as compression elements to carry larger loads and over longer spans when a single individual section is insufficient. However, not much research has been done on built-up sections. This paper aims to investigate the compressive capacity of pin-ended cold-formed steel built-up lipped channel sections using finite element analysis (FEA). In the study, cold-formed steel built-up lipped channel consists of two identical C-channel sections oriented back to back with spacing between them and having a ratio of I xx = I yy which are connected by battens at top and at bottom throughout its lengths at regular intervals according to code based provisions. A non-linear finite element model is developed and verified against theoretical results. The thickness of the members is thin and hence they are susceptible to buckling, shell elements S4R are used in FE modeling. The theoretical analysis is based on effective width method and direct strength method and the results are generally conservative for cold-formed steel built-up channel sections.

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Structural behaviour of built‐up battened cold‐formed steel columns

Craveiro,

Rahnavard,

Santiago

et al. 2023

ce papers

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Built‐up cold‐formed steel (CFS) columns are extensively used when single cold‐formed steel elements are not able to fulfill the established requirements in terms of load‐bearing capacity. For hot‐rolled steel laced and battened columns, the EN 1993‐1‐1 presents specific design provisions. However, no specific design guidelines are provided for CFS laced and battened columns. The investigation on this type of built‐up elements is scarce, requiring extensive research to assess if the hot‐rolled design methodologies are also suitable for cold‐formed steel elements. In this investigation, experimental and numerical results are presented for CFS battened columns comprising C and Σ channels. Assessing the composite action between the individual shapes connected by the batten plates was one of the objectives of this investigation. The predominant buckling modes were analyzed considering the influence of batten plate spacing and the number of fasteners per plate. Based on the obtained experimental results finite element models were developed to further assess the influence of key governing parameters. The observed axial strengths are compared with design strengths determined according to the Eurocode assessing the suitability of the design methodologies.

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Experimental investigation for the behaviour of battened beam-columns composed of four equal slender angles

Cited by 31 publications

References 5 publications

Strength of cold formed battened columns subjected to eccentric axial compressive force

Strength of cold formed battened columns subjected to eccentric axial compressive force

An Investigation of the Compressive Strength of Cold-Formed Steel Built up Channel Sections

Structural behaviour of built‐up battened cold‐formed steel columns

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