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Shear behaviour of perforated cold-formed steel section

Shear behaviour of perforated cold-formed steel section / Lee Kenth Zheng
Disertasi ini membentangkan kajian berangka pada kelakuan ricih sistem rangka keluli rumah mampu milik menggunakan keratan berlubang. Kos keluli yang tidak stabil mengakibatkan kos untuk membina rumah tidak stabil. Keratan keluli berlubang mempunyai berat yang lebih rendah daripada keluli yang biasa. Hal ini menyebabkan berat bahan pembinaan lebih ringan dan lebih murah. Walau bagaimanapun, lubang pada web keluli akan mengurangkan rintangan ricih sistem rangka keluli. Objektif kajian ini adalah untuk menentukan keupayaan ricih keratan berlubang dengan pembukaan web di bawah pembebanan ricih. Objektif kedua adalah untuk mengkaji kesan pembukaan lubang pada web kepada kapasiti ricih. Ketiga, pengurangan berat keratan berlubang dan akhir sekali untuk mencadangkan satu optimum keratan berlubang berdasarkan keputusan yang diperolehi daripada perisian LUSAS. Keratan keluli berlubang dijangka mempunyai pengurangan kos kerana bahannya telah dikurangkan oleh kawasan berlubang. Beban ricih kritikal daripada sistem rangka keluli biasa diperolehi dengan menggunakan perisian Staad Pro menurut Eurocode Standard. Keputusan yang diperolehi akan dibandingkan dengan keratan keluli berlubang. Analisis nilai eigen turut dilakukan dan keputusannya dibandingkan dengan keratan tanpa lubang. Keratan keluli optimum bagi kelakuan ricih telah ditentukan daripada keputusan dengan berbanding keratan tanpa lubang dengan kapasiti ricih dan peratusan pengurangan berat. Keratan keluli lubang dengan 8 bukaan berlian dipilih dengan peratusan kapasiti lengkokan ricih yang berbeza daripada bahagian tanpa lubang adalah 33.02% dan 48.18% dengan bukaan bulatan. _______________________________________________________________________________________________________ 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.
Contributor(s):
Lee Kenth Zheng - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875006826
Barcode : 00003106703
Language:
English
Subject Keywords:
steel framing system; perforated section; construction
First presented to the public:
6/1/2017
Original Publication Date:
3/23/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 109
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-03-23 15:11:49.784
Date Last Updated
2020-06-01 15:51:49.719
Submitter:
Mohd Jasnizam Mohd Salleh

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