Experimental Investigation on Slip-In Connection for Cold-Formed Steel Double Channel Sections

Abstract:

The application of cold-formed steel in light steel framing design can become a popular choice of Industrialized Building System, by moving huge amount of construction work to the factory and leaving the construction site cleaner and safer. However the joints behaviour for primary structures, particularly the partial strength semi-rigid beam-to-column connection has not been studied in depth. This paper presents the isolated joint test on slip-in connection using 6 mm hot-rolled steel gusset plate. Two cold-formed lipped channel sections were placed back-to-back to form beam and column members. Three specimens with the depth of beam ranging from 150 mm to 250 mm were tested. From the experimental results, it is observed that the ratio of moment resistance of joint to the moment resistance of the connected beam increases in the range of 0.46 to 0.70. The rotational capacities of the joints exceed 30 mRad. The rotational stiffness achieves 511 kNm/rad to 1671 kNm/rad. It is concluded that the proposed connections could be classified as partial strength connection.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 1038-1041
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.1038
• Online since: May 2011
• Authors: Tan Cher Siang, M.Md. Tahir, Poi Ngian Shek, Ahmad Beng Hong Kueh
• Keywords: Bolted Moment Connection, Cold-Formed Steel, Double Channel Section, Gusset Plate, Partial Strength, Semi-Rigid

References

[1] British Standards Institution. Eurocode 3: Design of steel structures- Part 1.8: Design of joints. London. BS EN 1993-1-8. (2005)

[2] Couchman, G.H. Design of Semi-Continuous Braced Frames. UK: The Steel Construction Institute. (1997)

[3] Chung, K.F. & Lawson, R.M. Structural performance of shear resisting connections between cold-formed steel sections using web cleats of cold-formed steel strip. Engineering Structures. 22. (2000), pp.1350-1366.

DOI: 10.1016/s0141-0296(99)00083-8

[4] Chung, K.F. & Lau, L. Experimental investigation on bolted moment connections among cold-formed steel members. Engineering Structures. 21. (1999), pp.898-911.

DOI: 10.1016/s0141-0296(98)00043-1

[5] Wong, M.F. & Chung, K.F. Structural behaviour of bolted moment connections in cold-formed steel beam-column sub-frames. Journal of Constructional Steel Research. 58. (2002), pp.253-274.

DOI: 10.1016/s0143-974x(01)00044-x

[6] Lim, J.B.P. & Nethercot, D.A. Ultimate strength of bolted moment-connections between cold-formed steel members. Thin-Walled Structures. 41. (2003), pp.1019-1039.

DOI: 10.1016/s0263-8231(03)00045-4

[7] Mahmood Md Tahir, Tan Cher Siang. Experimental Tests on Partial Strength Connection for Cold-formed Steel Double Lipped Channel Sections. Fifth International Conference on Thin-Walled Structures. Brisbane, Australia. (2008).

[8] Tan Cher Siang. Behaviour of Pin and Partial Strength Beam-to-column Connections with Double Channel Cold-formed Steel Sections. Thesis, Universiti Teknologi Malaysia. (2009).