The Efficiency Of I-Beam Steel Section With Perforated-Corrugated Web Profile

Hasan, Hazwani (2017) The Efficiency Of I-Beam Steel Section With Perforated-Corrugated Web Profile. Masters thesis, Universiti Sains Malaysia.

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Abstract

This study investigates the structural efficiency of the triangular web profile (TriWP) steel section with perforation. Two stages were included which comprised of 359 models that were analysed. In Stage 1, the structural efficiency of the TriWP with perforation with the dimension of 200 mm × 100 mm × 6 mm × 4 mm and span length of 900 mm is determined from the ratio of load carrying capacity to selfweight. It is calculated under the condition of different perforation sizes i.e. 0.4D, 0.5D and 0.6D; five different perforation shapes which are circular, square, hexagonal, diamond and octagonal and three different layouts of perforations (Layout 1, Layout 2 and Layout 3). By using these combinations, the analysis of the model subjected to loading causing bending, lateral torsional buckling, torsion and shear are analysed. In this stage, the most efficient perforation shape, size and layout is selected based on the highest value of structural efficiency. TriWP with the perforation size of 0.4D, diamond perforation shape arranged in Layout 3 is found to shows the highest structural efficiency value compared to other models. The values are 158.63, 799.0, 132.17 and 204.75 for bending, lateral torsional buckling, torsion and shear loading conditions, respectively. In Stage 2, different web thickness, flange thickness and span length are used on the selected model in Stage 1 to observe the performance and its behaviour under four loading condition i.e. bending, lateral torsional buckling, torsion and shear. It is found that when the web and flange thickness are increased under the same span length with constant flange width and web depth, the value of deflection and torsional rotation of model decreased under bending and torsional loading conditions, respectively. Nevertheless, these values (deflection and torsional rotation) are found to increase when the span length increased. Moreover, the value of shear buckling capacity of model is increased under shear loading condition and the value of moment buckling resistance is also found to increase under loading causing lateral torsional buckling. Nevertheless, the value of shear buckling capacity and moment buckling resistance are found to decrease when the span length increased.

Item Type: Thesis (Masters)
Subjects: T Technology
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Kampus Kejuruteraan (Engineering Campus) > Pusat Pengajian Kejuruteraan Awam (School of Civil Engineering) > Thesis
Depositing User: Mr Mohamed Yunus Mat Yusof
Date Deposited: 05 Nov 2019 08:10
Last Modified: 19 Nov 2020 08:03
URI: http://eprints.usm.my/id/eprint/45757

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