Vol. 15, No. 3, pp. 259-266 (2019)
A REVIEW OF CLASS 4 SLENDER SECTION PROPERTIES CALCULATION FOR
THIN-WALLED STEEL SECTIONS ACCORDING TO EC3
Chi-King Lee 1, * and Sing-Ping Chiew 2
1 School of Engineering and Information Technology, University of New South Wales Canberra, Australia
2 Singapore Institute of Technology, Dover Campus, Singapore
* (Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 02 October 2018; Revised: 26 February 2019; Accepted: 03 June 2019
DOI:10.18057/IJASC.2019.15.3.6
 View Article |
Export Citation: Plain Text | RIS | Endnote |
ABSTRACT
A review is given to the procedure suggested by the Eurocode 3 for the section properties calculations of thin-walled Class 4 slender steel sections consists of plate elements. Focus will be given to the effective width approach described in the Eurocode 3. The essential steps for the effective width calculation for single plate element subjected to different direct stress distribution are first given. It is then followed by a study that compares the two different procedures, namely the full iteration procedure and the simplified procedure adopted by Eurocode 3 for Class 4 slender section properties calculation. Calculation examples are then given to demonstrate the calculation steps for both the full and the simplified approaches. Results of the calculation examples indicate that while the simplified procedure eliminates the tedious iteration steps and is much more convenient for manual calculation, the full iteration method in general will lead to less conservative effective area and section modulus and thus could result in more economical design in practice.
KEYWORDS
Class 4 Slender Sections, Thin-walled steel sections, Effective width method, Effective area and modulus
REFERENCES
[1] British Standard Institution, Eurocode 3: Design of Steel Structures: Part 1-1 General rules and rules for buildings, BS EN 1993-1-1, BSI London, 2005.
[2] British Standard Institution, Eurocode 3: Design of Steel Structures: Part 1-5 Plated Structural elements, BS EN 1993-1-5, BSI London, 2006.
[3] Gardner L. and Nethercot D.A., “Designer’s guide to Eurocode 3: Design of steel buildings EN 1993-1-1, -1-3 and -1-8”, Second edition, ICE publishing, 2011.
[4] Beg D., Kuhlmann, U., Davaine L. and Braun, B., “Design of plated Structures Eurocode 3: Design of steel structures: Part 1-5- Design of plated structures”, ECCS and Ernst & Sohn, 2010.
[5] Timoshenko S.P and Gere J.M., Theory of Elastic Stability, McGraw Hill Book Company, International Edition, 1963.
[6] Lee C.K. and Chiew S.P., “An efficient modified flanges only method for plate girder bending resistance calculation”, Journal of Constructional Steel Research, 89, 98-106, 2013.
[7] Gardner L. and Chan T.M., “Cross-section classification of elliptical hollow sections”, Steel and Composite Structures, 7(3), 185-200, 2007.
[8] Prachar M., Hricak J., Jandera M., Wald F., Zhao B., “Experiments of Class 4 Open section beams at elevated temperature”, Thin-Walled Structures, 98, 2-18, 2016.