The Efficiency Of I-Beam Steel Section With Perforated-Corrugated Web Profile
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...
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| Format: | Thesis |
| Language: | English |
| Published: |
2017
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| Subjects: | |
| Online Access: | http://eprints.usm.my/45757/1/The%20Efficiency%20Of%20I-Beam%20Steel%20Section%20With%20Perforated-Corrugated%20Web%20Profile.pdf |
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| Summary: | 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. |
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