Experimental Study on Lateral -Torsional Buckling of Triangular Web Profile Steel Section

Abstract:

Triangular web profile (TriWP) is a structural steel section made of two flanges connected to a web plate of triangular profile. The ability of TriWP to resist lateral–torsional buckling (LTB) is one of the most important criteria considered in the design of this steel section. This study examined the LTB behavior of TriWP steel section and determined the buckling moment resistance (M_b,Rd) for TriWP. Beam specimens were analyzed using a four-point bending test. Four types of specimen sizes were used: 200 mm × 100 mm × 6.3 mm × 6 mm; 200 mm × 100 mm × 9 mm × 6.3 mm; 200 mm × 100 mm × 8 mm × 6 mm; and 200 mm × 100 mm × 6 mm × 5 mm sections. Testing results for all specimen sizes showed that the values for M_b,Rd of the TriWP steel sections were higher than those of the flat web section. The percentage difference of M_b,Rd from the experimental results for all specimen sizes ranged from 10.38% to 17.37%. The percentage difference of M_b,Rd of the experimental and design values based on manual calculation by using Eurocode 3 ranged from 9.13% to 43.8%.

• Periodical: Applied Mechanics and Materials (Volume 802)
• Pages: 178-183
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.802.178
• Online since: October 2015
• Authors: Hazwani Hasan, Fatimah De’nan*, Kok Keong Choong
• Keywords: Corrugated Web, I-Beam, L-Torsional Buckling, Non Uniform Steel Section, Torsional Behavior, Triangular Web Profile Steel Section

References

[1] Moon, J., Yi, J. -W., Choi, B. H., & Lee, H. -E., Lateral–torsional buckling of I-girder with corrugated webs under uniform bending, Thin-Walled Structures, 47(2009) 21–30.

DOI: 10.1016/j.tws.2008.04.005

[2] Denan, F., & Hashim, N. S., The Effect of Web Corrugation Angle on Bending Performance of Triangular Web Profile Steel Beam Section, International Journal of Energy Engineering, 2 (2012) 1–4.

DOI: 10.1109/icmt.2011.6002802

[3] De'nan, F., Hashim, N. S., Experimental Study On Bending Behaviour Of Triangular Web Profile Steel Beam Section, International Journal of Research in Engineering and Technology, 2 (2013) 384–390.

DOI: 10.15623/ijret.2013.0210058

[4] De'nan, F., Effect of Triangular Web Profile on the Shear Behaviour of Steel I-Beam, Iranica Journal of Energy & Environment, 4 (2013) 219–222.

[5] Denan, F., Osman, M. H., Saad, S., The study of lateral torsional buckling behavior of beam with trapezoid web steel section by experimental and finite element analysis, International Journal of Research and Reviews in Applied Science, 2 (2010).

[6] N. Subramaniam. Steel Structures Design and Practice. Oxford University Press (2010) pp.266-274.

[7] Sayed-Ahmed, E. Y. Lateral Torsion-flexure buckling of corrugated web steel girders. Proceeding of the Institution of Civil Engineers, Paper Structures and Buildings, 158 (2004), 53-69.

DOI: 10.1680/stbu.2005.158.1.53

[8] Sayed-ahmed, E. Y., Design aspects of steel I-girders with corrugated steel webs. Electronic Journal of Structural Engineering, 7 (2007).

DOI: 10.56748/ejse.772

[9] Sonck, D., & Belis, J., Lateral–torsional buckling resistance of cellular beams. Journal of Constructional Steel Research, 105 (2015), 119–128.

DOI: 10.1016/j.jcsr.2014.11.003

[10] EC3 European Committee for Standardization. EN 1993-1-1 Eurocode 3: Design of steel structures - Part 1. 1: General rules and rules for buildings (2005).

[11] S. Jamali, Lateral Torsional Buckling of Trapezoid Web Profile, MsC Thesis, Universiti Teknologi Malaysia (2002).

[12] Khalid, Y., Chan, C., Sahari, B., & Hamouda, a. M. Bending behaviour of corrugated web beams, Journal of Materials Processing Technology, 150 (2004) 242–254.

DOI: 10.1016/j.jmatprotec.2004.02.042