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Compression Capacity Prediction of Cold-Formed Steel Sections

Ng, Natasya Jia Weyn (2008) Compression Capacity Prediction of Cold-Formed Steel Sections. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Cold-formed steel sections have important advantages such as flexible cross sectional profiles and high strength-to-weight ratio but constantly experience buckling problems. They are currently designed based on Effective Width philosophy in the BS, Euro, American and Australian codes. The Direct Strength Method is a new design philosophy utilizing the buckling loads obtained from a buckling analysis. This project aims to investigate the feasibility of using the Direct Strength method especially when employing the sections available in Malaysia industry. The local steel designers are not well exposed to this method and no study has been reported on its use in local industry. Activities of the project include data gathering, column buckling analysis using Cornell University Finite Strip Method (CUFSM) and comparison of ultimate strength based on test values and applications of Direct Strength method and Effective Width method. Compression testing on Bluescope Lysaght sections Cl5015, Cl5019, Zl5015 and Zl5019 of 500 mm and 1000 mm length were carried out and were analyzed. Comparison with test results shows good agreement with the theoretical values predicted using Direct Strength method. This method can be a good compression capacity predictor because it explicitly incorporates all buckling modes, does not require calculations of effective properties and gives reliable predictions.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Structures, materials and construction
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:19
Last Modified: 25 Jan 2017 09:44
URI: http://utpedia.utp.edu.my/id/eprint/7125

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