Advanced SearchSearch Tips
Numerical analysis of channel connectors under fire and a comparison of performance with different types of shear connectors subjected to fire
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Numerical analysis of channel connectors under fire and a comparison of performance with different types of shear connectors subjected to fire
Shahabi, S.E.M.; Ramli Sulong, N.H.; Shariati, M.; Mohammadhassani, M.; Shah, S.N.R.;
The behavior of shear connectors plays a significant role in maintaining the required strength of a composite beam in normal and hazardous conditions. Various types of shear connectors are available and being utilized in the construction industry according to their use. Channel connectors are a suitable replacement for conventional shear connectors. These connectors have been tested under different types of loading at ambient temperature; however, the behavior of these connectors at elevated temperatures has not been studied. This investigation proposes a numerical analysis approach to estimate the behavior of channel connectors under fire and compare it with the numerical analysis performed in headed stud and Perfobond shear connectors subjected to fire. This paper first reviews the mechanism of various types of shear connectors and then proposes a non-linear thermo-mechanical finite element (FE) model of channel shear connectors embedded in high-strength concrete (HSC) subjected to fire. Initially, an accurate nonlinear FE model of the specimens tested at ambient temperature was developed to investigate the strength of the channel-type connectors embedded in an HSC slab. The outcomes were verified with the experimental study performed on the testing of channel connectors at ambient temperature by Shariati et al. (2012). The FE model at ambient temperature was extended to identify the behavior of channel connectors subjected to fire. A comparative study is performed to evaluate the performance of channel connectors against headed stud and Perfobond shear connectors. The channel connectors were found to be a more economical and easy-to-apply alternative to conventional shear connectors.
composite structures;finite element modeling;channel connectors;elevated temperatures;load-slip relationship;
 Cited by
Crashworthiness of G4(2W) guardrail system: a finite element parametric study, International Journal of Crashworthiness, 2017, 22, 2, 169  crossref(new windwow)
Numerical studies on shear resistance of headed stud connectors in different concretes under Arctic low temperature, Materials & Design, 2016, 112, 184  crossref(new windwow)
Cooke, G., Lawson, R. and Newman, G. (1988), "Fire resistance of composite deck slabs", Struct. Eng., 66, 253-261.

Ellobody, E. and Young, B. (2006), "Performance of shear connection in composite beams with profiled steel sheeting", J. Construct. Steel Res., 62(7), 682-694. crossref(new window)

Eurocode, E. (1994), Eurocode 4: Design of composite steel and concrete structures-Part 1-2: General rules-Structural fire design, British Standards Institution, BS EN: 1-2.

Fahrni Hani, M. and Tamara, T. (2012), "Finite element analysis of composite steel-concrete beams subjected to fire", Nahrain University College of Engineering Journal (NUCEJ), 15(1), 1-11.

Huang, Z., Burgess, I.W. and Plank, R.J. (1999), "The influence of shear connectors on the behaviour of composite steel-framed buildings in fire", J. Construct. Steel Res., 51(3), 219-237. crossref(new window)

Lam, D. and El-Lobody, E. (2005), "Behavior of headed stud shear connectors in composite beam", J. Struct. Eng., 131, 96. crossref(new window)

Lamont, S., Usmani, A. and Gillie, M. (2004), "Behaviour of a small composite steel frame structure in a "long-cool" and a "short-hot" fire", Fire Safe. J., 39(5), 327-357. crossref(new window)

Lu, W., Ma, Z., Makelainen, P. and Outinen, J. (2012), "Behaviour of shear connectors in cold-formed steel sheeting at ambient and elevated temperatures", Thin-Wall. Struct., 61, 229-238. crossref(new window)

Majdi, Y., Hsu, C.-T.T. and Zarei, M. (2014), "Finite element analysis of new composite floors having coldformed steel and concrete slab", Eng. Struct., 77, 65-83. crossref(new window)

Maleki, S. and Bagheri, S. (2008), "Behavior of channel shear connectors, Part I: Experimental study", J. Construct. Steel Res., 64(12), 1333-1340. crossref(new window)

Meaud, C., Jurkiewiez, B. and Ferrier, E. (2014), "Steel-concrete bonding connection: An experimental study and non-linear finite element analysis", Int. J. Adhes. Adhes., 54, 131-142. crossref(new window)

Mirza, O. and Uy, B. (2009), "Behaviour of headed stud shear connectors for composite steel-concrete beams at elevated temperatures", J. Construct. Steel Res., 65(3), 662-674. crossref(new window)

Nguyen, H. and Kim, S. (2009), "Finite element modeling of push-out tests for large stud shear connectors", J. Construct. Steel Res., 65(10-11), 1909-1920. crossref(new window)

Pashan, A. (2006), "Behaviour of channel shear connectors: Push-out tests", M.S. Thesis; Department of Civil Engineering, University of Saskatchewan, Canada.

Patrick, M. (2000), "Experimental investigation and design of longitudinal shear reinforcement in composite edge beams", Progress Struct. Eng. Mater., 2(2), 196-217. crossref(new window)

Quevedo, R.L. and Silva, V.P. (2013), "Thermal analysis of push-out tests at elevated temperatures", Fire Safe. J., 55, 1-14. crossref(new window)

Ranzi, G. and Bradford, M.A. (2007), "Composite beams with both longitudinal and transverse partial interaction subjected to elevated temperatures", Eng. Struct., 29(10), 2737-2750. crossref(new window)

Rodrigues, J.P.C. and Laim, L. (2011), "Behaviour of perfobond shear connectors at high temperatures", Eng. Struct., 33(10), 2744-2753. crossref(new window)

Sanad, A., Rotter, J., Usmani, A. and O'Connor, M. (2000), "Composite beams in large buildings under fire-numerical modelling and structural behaviour", Fire Safe. J., 35(3), 165-188. crossref(new window)

Shariati, M., Ramli Sulong, N.H. and Arabnejad Khanouki, M.M. (2010), "Experimental and analytical study on channel shear connectors in light weight aggregate concrete", Proceedings of the 4th International Conference on Steel & Composite Structures, Sydney, Australia, July.

Shariati, M., Ramli Sulong, N.H., Arabnejad Khanouki, M.M. and Mahoutian, M. (2011), "Shear resistance of channel shear connectors in plain, reinforced and lightweight concrete", Sci. Res. Essays, 6(4), 977-983.

Shariati, M., Ramli Sulong, N.H. and Arabnejad Khanouki, M.M. (2012), "Experimental assessment of channel shear connectors under monotonic and fully reversed cyclic loading in high strength concrete", Mater. Des., 34, 325-331. crossref(new window)

Standard, B. (1994), "Structural use of steelwork in building", BS5950 Part 4: Code of practice for design of composite slabs with profiled steel sheeting.

Tests, I.F.R. (1975), "Elements of Building Construction, ISO-834", International Organization for Standardization, Geneva, Switzerland.

Wang, A.J. (2011), "Numerical investigation into headed shear connectors under fire", J. Struct. Eng., 138(1), 118-122.

Zhao, B. and Kruppa, J. (1995), "Fire resistance of composite slabs with profiled steel sheet and of composite steel concrete beams (Part 2, Composite beams)", Final Report; ECSC - agreement No. 7210 SA 509, CTICM, Luxembourg.