Study the effect of intermediate and closer stiffener on the behaviour of the cold - formed steel lipped channel section under axial compression



Cold-Formed steel built-up columns are commonly used as compression member in the industrial roof and long span bridge structures to carry larger load. To improve the strength and stiffness of the cold-formed section, the built-up column with additional stiffeners and lacings are used. This paper reports the results of experimental tests conducted on built-up cold-formed columns, composed with the combination of intermediate and closer stiffeners with pin-ended condition under axial compression. Totally twelve columns with or without intermediate and closer stiffeners were tested to failure. The experimental results aim to quantify the effect of cross-section, intermediate and closer stiffener on the overall performance, including strength, strain and failure modes for the built-up column. The Finite element model was developed by ANSYS software and the model is validated with the experimental results. The built-up column strength predicated by recommended design equations of American Iron and Steel Institute (AISI) exhibited good agreement with the ultimate load of built-up columns obtained both by experimental and numerical. Based on this study a recommendation is proposed to DSM for the CFS built -up columns with intermediate and closer stiffeners.


Intermediate stiffener, closer stiffener, built – up columns, cold – formed steel, experimental study, ANSYS, AISI

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- AISI S100-16(American Iron and Steel Institute). North American Specification for the Design of Cold-Formed Steel Structural Members, Washington, DC: Iron and Steel Institute, 2016.

- Anbarasu, M, Behaviour of cold-formed steel built-up battened columns composed of four lipped angles: Tests and numerical validation. Adv. Struct. Eng. 23(1) (2020) 51 – 64. doi:10.1177/1369433219865696

- Anbarasu, M., Kanagarasu, K., & Sukumar, S, Investigation on the behaviour and strength of cold-formed steel web stiffened built-up battened columns. Mat. and Struct. 48(12) (2015) 4029 – 4038.doi: 10.1617/s11527-014-0463-8.

- Aruna, G., Sukumar, S., & Karthika, V, Study on cold-formed built-up square sections with intermediate flange and web stiffeners. Asian J. of Civil Engg. 16(7) (2015) 919 - 931.

- Aruna, G., Kartika, V., & Sukumar, S, Study on the behaviour of built-up closed steel columns with intermediate stiffener. Int. J. of App. Engg. Res. 10(38) (2015), 28199 – 28204.

- Beulah Gnana Ananthi, G., Vishuvardhan, S., & Samuel Knight, G.M, Experimental, theoretical and numerical study on thin walled steel single and compound channel sections in axial compression. Indian J. of Engg. & Mat. Sci. 22(5) (2015), 570-580.

- Cristiane Cruxen Daemon d´Oliveira Bastos, & Eduardo de Miranda Batista, Experimental analysis of built-up cold-formed steel lipped channel stub column. REM – Int. Engg. Journal. 72(4) (2019), 571-579.

- Ehab Ellobody, & Ben Young, Structural performance of cold-formed high strength stainless steel columns. J. of Const. Steel Res. 61(12) (2005), 1693-1649.doi:10.1016/j.jcsr.2005.05.001

- Jun Yea, Seyed Mohammad Mojtabaei, & Iman Hajirasouliha, Local-flexural interactive buckling of standard and optimised cold-formed steel columns. J. of Const. Steel Res. 144(5) (2018), 106-118.doi: 10.1016/j.jcsr.2018.01.012

- Liao, F., Wu, H., Wang, R., & Zhou, T, Compression test and analysis of multi-limbs built-up cold-formed steel stub columns. J. of Const. Steel Res. 128(1) (2017), 405-415.doi: 10.1016/j.jcsr.2016.09.005.

- Liping Wang, & Ben Young, Behaviour of cold-formed steel built-up sections with intermediate stiffeners under bending. II: Parametric study and design. J. of Struct. Engg. 142(3) (2016), 04015151-1. doi:10.1061/(ASCE)ST.1943-541X.0001427

- Manikandan, P., & Arun, N, Behaviour of partially closed stiffened cold-formed steel compression member. Arab. J. of Sci. and Engg, 41(10) (1992), 1786-1803.doi: 10.1007/sl3369-015-2015-0.

- Manikandan, P., & Thulasi, M. (2019). Investigation on cold-formed steel lipped channel built-up I beam with intermediate web stiffener. Int. J. of Adv. Struct. Engg.11(1) (2019), 97 – 107. doi:10.1007/s40091-019-0220-x

- Matsubara, G. Y., Batista, E. M., & Salles, G. C, Lipped channel cold-formed steel columns under local-distortional buckling mode interaction. Thin-Walled Struct. 137(4), 251-270.doi: 10.1016/J.TWS.2018.12.041

- Mohamed Ghannam, Axial Load Capacity of Cold-formed Steel Built-up Stub Columns. Int. J. of Steel Struct. 17(4) (2017), 1273-1283.doi: 10.1007/s13296-017-1202-0.

- Mohamed Saadi , Djarir Yahiaoui , Noureddine Lahbari & Bouzid Tayeb, Seismic Fragility Curves for Performance of Semi-rigid Connections of Steel Frames. Civil Engg. J. 7(7) (2021), 1112-1124.doi: 10.28991/cej-2021-03091714

- Nguyen, H.T., & Kim, S.E, Buckling of composite columns of lipped-channel and hat sections with web stiffener. Thin Walled Struct. 47(11) (2009), 1149–1160. doi: 10.1016/j.tws.2009.04.011

- Sampson, A.P., Weli, V.E., Nwagbara, M.O., Eludoyin, O.S., Sensations of Air Temperature Variability and Mitigation Strategies in Urban Environments. J. of Human, Earth, and Future, 2(2) (2021), 100–113.

- Tayyab Naqash. Pushover Response of Multi Degree of Freedom Steel Frames. Civil Engg. J. 6(Special Issue- Emerging Materials in Civil Engineering), (2020) 86–97. doi: 10.28991/cej-2020-SP(EMCE)-08

- Tina, C.H.T., Krishanu, R., & Hieng H.L. Effect of screw spacing on behaviour of axially loaded back-to-back cold-formed steel built-up channel sections. Adv. in Struct. Engg. 21(9) (2017), 1–14.doi: 10.1177/1369433217719986

- Wang, C.G., Zhang, Z. N., & Zhao, D. Q, Experimental and numerical study on perforated channel columns with complex edge stiffeners and web stiffeners. Adv. in Struct. Engg. 22(10) (2019), 2205-2221. doi: 10.1260/1369-4332.18.8.1303.

- Wang, C.G., Zhang, Z. N., & Zhao, D. Q, Compression tests an numerical analysis of web stiffened channels with complex edge stiffeners. J. of Const. Steel Res. 116(8) (2016), 29–39.doi: 10.1016/j.jcsr.2015.08.013

- Whittle, J., & Ramseyer, C, Buckling capacities of axially loaded cold-formed, built-up C-channels. Thin-Walled Struct. 47(2) (2009), 190–201.doi: 10.1016/j.tws.2008.05.014.

- Yao, Z.Y., & Rasmussen, K.J.R. Perforated cold - formed steel members in compression. I: parametric studies. J. of Struct. Engg. 143(5) (2017), 1–15.doi: 10.1061/(ASCE)ST.1943-541X.0001635.

- Young, B., & Kwon. Gregory J. Hancock. Test of cold-formed channels with local and distortional buckling. J. of Struct. Engg. 118(7) (1992), 1786-1803. doi:10.1061/(ASCE)0733-9445(1992)118:7(1786).

- Zhang, J. H., & Young, B. Numerical investigation and design of cold-formed steel built-up open section columns with longitudinal stiffeners. Thin-Walled Struct. 89(4) (2015), 178-191.doi:10.1016/j.tws.2014.12.011


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