Shear behaviour of perforated cold-formed steel section
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Date
2017-06
Authors
Lee, Kenth Zheng
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Abstract
This dissertation presents a numerical study on the shear behaviour of steel framing
system using perforated section. The unstable cost of steel causing cost to construct
housing become unstable thus resulting in other choices of materials for construction.
Perforated steel section has lower volume of steel, which cause the weight to decrease
and cheaper in construction. However, perforation in steel will decrease shear resistance
of steel framing system. The objective of this study is to investigate the shear behaviour
of perforated steel section comparing to unperforated section in steel framing system.
Perforated steel sections have lower volume of steel material as a result of perforated
area. Critical shear loading from common steel framing system is obtained using Staad
Pro software according to Eurocode Standard. The shear loading then transferred to
model in LUSAS to perform finite element analysis. The results obtained were compared
to the steel section without perforation. Eigenvalue analysis was performed and the
results were compared by using eigenvalue as structure capacity. Optimal steel section
for shear behaviour was determined from the results. The perforated sections were
compared with unperforated section for shear capacity and percentage of volume
reduction. Perforation steel section with 8 diamond openings was selected with
percentage of shear buckling capacity difference from unperforated section about 33.02%
and 48.18% with circle openings.