Experimental investigation on the flexural behavior of steel cold-formed I-beam with strengthened hollow tubular flanges

Flexural Capacity Formulae of Steel Cold-Formed I-Beam with Strengthened Hollow Tubular Flanges. (Dept. C)

“…Material and geometric nonlinearities have been taken into account in the FE models. Nineteen FE model results were verified with those obtained experimentally [1]. The verified FE model was used to establish the parametric study taking into account the rectangularity aspect ratio of the hollow tubular flanges and the compressive strength of the strengthening material.…”

“…Shear studs and strengthening materials were modeled using linear elastic isotropic materials. The density and compressive strength of the strengthening materials which obtained experimentally were defined in Abou-Rayan et al [1]. All properties of materials used in this study are summarized and presented in Table 1.…”

“…The results of FE-models were compared with those obtained from the nineteen specimens' experimental results, Abou-Rayan et al [1]. Failure modes, ultimate loads, and mid-span deflections at the ultimate load are the main results recorded and analyzed.…”

“…To investigate the flexural behavior of steel cold-formed Ibeam with strengthened hollow tubular flanges, nineteen experimental specimens were prepared and tested by Abou-Rayan et al [1]. After considering many factors as lightweight, low cost, and high strength, six different materials were used as a filler for the tubular flanges of the studied section to increase its buckling resistance, (Sawdust with cement mortar-Particleboard Wood-Sawdust with epoxy-Sawdust with polyester -lightweight concrete -polymermortar).…”

“…To predict equations calculated the section capacity of the strengthened hollow tubular flanges, a wide range of numerical investigation is required. Therefore, this research is concerned with the development of 3-D FE models, and verification of these models have been demonstrated with reference to the experiments of Abou-Rayan et al [1]. The developed models were used to extend the parametric study.…”