Advances in concrete construction

  • 제12권1호
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  • Pages.13-23
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  • 2021
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  • 2287-5301(pISSN)
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  • 2287-531X(eISSN)
테크노프레스 (Techno-Press)
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Experimental investigation of a prefabricated timber-concrete composite floor structure: Notched-slab approach

  • Yilmaz, Semih (Department of Architecture, Karadeniz Technical University) ;
  • Demir, Serhat (Department of Civil Engineering, Karadeniz Technical University) ;
  • Vural, Nilhan (Department of Architecture, Karadeniz Technical University)
  • 투고 : 2021.02.02
  • 심사 : 2021.05.20
  • 발행 : 2021.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study presents the experimental performance of a high ductility and energy dissipation capacity connector named notched-slab fastener, which is developed for timber-concrete composite floor structures. Notched-slab fastener is unique because the notch was left in the concrete slab instead of a timber beam for the first time. In this way, cross-section loss in the timber beam is prevented. This is one of the most important benefits of the proposed connector. Experimental performance of the purposed connector was investigated with two test methods: push-out test and bending test. For comparison purposes, a notched fastener was also produced and tested as reference sample. Test results showed that notched-slab fastener has stable load carrying behavior under push-out loading with high-energy dissipation and no sudden strength degradation. In addition, notched slab design provided moment arm to the fastener and the damage is concentrated in the connector instead of concrete.

키워드

참고문헌

  1. Ahmadi, B.H. and Saka, M.P. (1993), "Behavior of composite timber-concrete floors", J. Struct. Eng., 119(11), 3111-3130. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:11(3111).
  2. Ceccotti, A. (2002), "Composite concrete-timber structures", Prog. Struct. Eng. Mater., 4(3), 264-275. https://doi.org/10.1002/pse.126.
  3. Clouston, P., Bathon, L.A. and Schreyer, A. (2005), "Shear and bending performance of a novel wood-concrete composite system", J. Struct. Eng., 131(9), 1404-1412. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:9(1404).
  4. Dankova, J., Mec P. and Safrata, J. (2019), "Experimental investigation and performance of timber-concrete composite floor structure with non-metallic connection system", Eng. Struct., 193, 207-218. https://doi.org/10.1016/j.engstruct.2019.05.004.
  5. Deam, B.L., Fragiacomo, M. and Buchanan, A.H. (2008), "Connections for composite concrete slab and LVL flooring systems", Mater. Struct., 41(3), 495-507. https://doi.org/10.1617/s11527-007-9261-x.
  6. Di Nino, S., Gregori, A. and Fragiacomo, M. (2020), "Experimental and numerical investigations on timber-concrete connections with inclined screws", Eng. Struct., 209, 109993. https://doi.org/10.1016/j.engstruct.2019.109993.
  7. Dias, A.M.P.G. (2005), "Mechanical behaviour of timber-concrete joints", Ph.D. Dissertation, Delft University of Technology, Delft.
  8. Dias, A.M.P.G., Kuhlmann, U., Kudla, K., Monch, S. and Dias, A. M.A (2018), "Performance of dowel-type fasteners and notches for hybrid timber structures", Eng. Struct., 171, 40-46. https://doi.org/10.1016/j.engstruct.2018.05.057.
  9. Dias, A.M.P.G., Skinner, J., Crews, K. and Tannert, T. (2016), "Timber-concrete-composites increasing the use of timber in construction", Eur. J. Wood Wood Prod., 74(3), 443-451. https://doi.org/10.1007/s00107-015-0975-0.
  10. Djoubissie, D.D., Messan, A., Fournely, E. and Bouchair, A. (2018), "Experimental study of the mechanical behavior of timber-concrete shear connections with threaded reinforcing bars", Eng. Struct., 172, 997-1010. https://doi.org/10.1016/j.engstruct.2018.06.084.
  11. EN 12512 (2002), Timber Structures, Test Methods, Cyclic Testing of Joints Made with Mechanical Fasteners, European Committee for Standardization, Brussels, Belgium.
  12. EN 1995-1-1 (2004), Design of Timber Structures-Part 1-1: General-Common Rules and Rules for Buildings, European Committee for Standardization, Brussels, Belgium.
  13. EN 26891 (1991), Timber Structures-Joints made with Mechanical Fasteners-General Principles for the Determination of Strength and Deformation Characteristics, European Committee for Standardization, Brussels, Belgium.
  14. EN 338 (2016), Structural Timber, Strength Classes, European Committee for Standardization, Brussels, Belgium.
  15. Fontana, M. and Frangi, A. (2000), "Fire behaviour of timberconcrete composite slabs", Fire Saf. Sci., 6, 891-902. https://doi.org/10.3801/IAFSS.FSS.6-891.
  16. Gelfi, P. and Giuriani, E. (1999), "Behavior of stud connectors in wood-concrete composite beams", Proceedings of the 1" REEM Symposium on Timber Engineering, Dresden, Germany, September.
  17. Lukaszewska, E. (2009), "Development of prefabricated timberconcrete composite floors", Ph.D. Dissertation, Lulea University of Technology, Lulea.
  18. Martin-Gutierrez, E., Estevez-Cimadevila, J., Otero-Chans, D. and Suarez-Riestra, F. (2020), "Discontinuous π-form steel shear connectors in timber-concrete composites. An experimental approach", Eng. Struct., 216, 110719. https://doi.org/10.1016/j.engstruct.2020.110719.
  19. Martins, C., Dias, A.M.P.G., Costa, R. and Santos, P. (2016), "Environmentally friendly high performance timber-concrete panel", Constr. Build. Mater., 102, 1060-1069. https://doi.org/10.1016/j.conbuildmat.2015.07.194.
  20. Molina, J.C., Calil, C.J., De Oliveira, D.R. and Gomes, N.B. (2019), "Analytical, experimental and numerical study of timber-concrete composite beams for bridges", Comput. Concrete, 24(2), 103-115. https://doi.org/10.12989/cac.2019.24.2.103.
  21. Natterer, J., Hamm, J. and Favre, P. (1996), "Composite woodconcrete floors for multi-story buildings", Proceedings of the International Wood Engineering Conference, New Orleans, Louisiana, USA, October.
  22. Otero-Chans, D., Estevez-Cimadevila, J., Suarez-Riestra, F. and Martin-Gutierrez, E. (2018), "Experimental analysis of glued-in steel plates used as shear connectors in timber-concretecomposites", Eng. Struct., 170, 1-10. https://doi.org/10.1016/j.engstruct.2018.05.062.
  23. Sebastian, W.M., Piazza, M., Harvey, T. and Webster, T. (2018), "Forward and reverse shear transfer in beech LVL-concrete composites with singly inclined coach screw connectors", Eng. Struct., 175, 231-244. https://doi.org/10.1016/j.engstruct.2018.06.070.
  24. Shi, B., Zhu, W., Yang, H., Liu, W., Tao, H. and Ling, Z. (2020), "Experimental and theoretical investigation of prefabricated timber-concrete composite beams with and without prestress", Eng. Struct., 204, 109901. https://doi.org/10.1016/j.engstruct.2019.109901.
  25. Steinberg, E., Selle, R. and Faust, T. (2003), "Connectors for timber-lightweight concrete composite structures", J. Struct. Eng., 129(11), 1538-1545. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:11(1538).
  26. Van der Linden, M.L.R. (1999), "Timber-concrete composite floor systems", Ph.D. Dissertation, Delft University of Technology, Delft.
  27. Xie, L., He, G., Wang, X.A., Gustafsson, P.J., Crocetti, R., Chen, L. and Xie, W. (2017), "Shear capacity of stud-groove connector in glulam-concrete composite structure", BioResour., 12(3), 4690-4706. https://doi.org/10.1016/j.engstruct.2019.109901.
  28. Yeoh, D., Fragiacomo, M., Aldi, P., Mazzilli, M. and Kuhlmann, U. (2008), "Performance of notched coach screw connection for timber-concrete composite floor system", NZ Timber Des. J., 17(1), 4-10.
  29. Yeoh, D.E.C. (2010), "Behaviour and design of timber-concrete composite floor system", Ph.D. Dissertation, University of Canterbury, Christchurch.
  30. Yilmaz, S. (2020), "Building system for rural tourism facilities in eastern black sea region: artificial notched wood-concrete composite system", Ph.D. Dissertation, Karadeniz Technical University, Trabzon.