Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Tests on composite slabs and evaluation of relevant Eurocode 4 provisions

  • Salonikios, Thomas N. (Institute of Engineering Seismology and Earthquake Engineering - EPPO) ;
  • Sextos, Anastasios G. (Civil Engineering Department, Aristotle University of Thessaloniki) ;
  • Kappos, Andreas J. (Civil Engineering Department, Aristotle University of Thessaloniki)
  • Received : 2011.07.27
  • Accepted : 2012.10.08
  • Published : 2012.12.25
⟨ Previous Next ⟩

Abstract

The paper addresses some key issues related to the design of composite slabs with cold-formed profiled steel sheets. An experimental programme is first presented, involving six composite slab specimens tested with a view to evaluating Eurocode 4 (EC4) provisions on testing of composite slabs. In four specimens, the EC4-prescribed 5000 load cycles were applied using different load ranges resulting from alternative interpretations of the reference load $W_t$. Although the rationale of the application of cyclic loading is to induce loss of chemical bond between the concrete plate and the steel sheet, no such loss was noted in the tests for either interpretation of the range of load cycles. Using the recorded response of the specimens the values of factors m and k (related to interface shear transfer in the composite slab) were determined for the specific steel sheet used in the tests, on the basis of three alternative interpretations of the related EC4 provisions. The test results confirmed the need for a more unambiguous description of the m-k test and its interpretation in a future edition of the Code, as well as for an increase in the load amplitude range to be used in the cyclic loading tests, to make sure that the intended loss of bond between the concrete slab and the steel sheet is actually reached. The study also included the development of a special-purpose software that facilitates design of composite slabs; a parametric investigation of the importance of m-k values in slab design is presented in the last part of the paper.

Keywords

References

  1. Calixto, J.M., Brendolan, G. and Pimenta, R. (2009), "Comparative study of longitudinal shear design criteria for composite slabs", Ibracon Structures and Materials Journal, 2(2), 124-141.
  2. CEN [Comite Europeen de Normalisation] (2004), Eurocode 4: Design of composite steel and concrete structures. Part 1-1: General rules and rules for buildings, EN 1994-1-1, Brussels.
  3. Jeong, Y.J., Kim, H.Y., Koo, H.B. and Park, S.K. (2007), "Longitudinal shear resistance of steel-concrete composite bridge deck", Proceedings of 8th Pacific Structural Steel Conference - Steel Structures in Natural Hazards, PSSC, New Zealand, March.
  4. Kim H.Y. and Jeong YJ. (2006), "Experimental investigation on behaviour of steel concrete composite bridge decks with perfobond ribs", J. Constr. Steel Res., 62(5), 463-471. https://doi.org/10.1016/j.jcsr.2005.08.010
  5. Lopes, E. and Simoes, R. (2008), "Experimental and analytical behaviour of composite slabs", Steel and Composite Structures, 8(5), 361-388. https://doi.org/10.12989/scs.2008.8.5.361
  6. Marimuthu, V., Seetharaman, S., Jayachandran, A.S., Chellappan, A., Bandyopadhyay, T. and Dutta, D. (2007), "Experimental studies on composite deck slabs to determine the shear-bond characteristic (m-k) values of the embossed profiled sheet", J. Constr. Steel Res., 63(6), 791-803. https://doi.org/10.1016/j.jcsr.2006.07.009
  7. Tsalkatidis, T. and Avdelas, A. (2010), "The unilateral contact problem in composite slabs: Experimental study and numerical treatment", J. Constr. Steel Res., 66(3), 480-486. https://doi.org/10.1016/j.jcsr.2009.10.012
  8. Tzaros, K.A., Mistakidis, E.S. and Perdikaris, C. (2010), "A numerical model based on nonconvex nonsmooth optimization for the simulation of bending tests on composite slabs with profiled steel sheeting", Eng. Struct., 32(3), 843-853. https://doi.org/10.1016/j.engstruct.2009.12.010

Cited by

  1. Experiments and failure analysis of SHCC and reinforced concrete composite slabs vol.56, 2015, https://doi.org/10.1016/j.engfailanal.2015.01.009
  2. Experimental investigation of longitudinal shear behavior for composite floor slab vol.23, pp.3, 2012, https://doi.org/10.12989/scs.2017.23.3.351
  3. An experimentally validated study for open rib profiles steel‐concrete composite slabs behavior in partial connection vol.3, pp.3, 2019, https://doi.org/10.1002/cepa.1055
  4. An innovative system to increase the longitudinal shear capacity of composite slabs vol.35, pp.4, 2012, https://doi.org/10.12989/scs.2020.35.4.509