Shear resistance behaviors of a newly puzzle shape of crestbond rib shear connector: An experimental study

  • Chu, Thi Hai Vinh ;
  • Bui, Duc Vinh ;
  • Le, Van Phuoc Nhan ;
  • Kim, In-Tae ;
  • Ahn, Jin-Hee ;
  • Dao, Duy Kien
  • Received : 2016.02.23
  • Accepted : 2016.07.30
  • Published : 2016.08.10


A newly puzzle shape of crestbond rib shear connector is a type of ductile perfobond rib shear connector. This shear connector has some advantages, including relatively easy rebar installation and cutting, as well as the higher shear resistance strength. Thus, this study proposed a newly puzzle shape of crestbond rib with a "${\mho}$" shape, and its shear resistance behaviors and shear strengths were examined using push-out tests. Five main parameters were considered in the push-out specimens to evaluate the effects of shear resistance parameters such as the dimensions of the crestbond rib, transverse rebars in the crestbond dowel, concrete strength, rebar strength, and dowel action on the shear strength. The shear loading test results were used to compare the changes in the shear behaviors, failure modes, and shear strengths. It was found that the concrete strength and number of transverse rebars in the crestbond rib were significantly related to its shear resistance. After the initial bearing resistance behavior of the concrete dowel, a relative slip occurred in all the specimens. However, its rigid behavior to shear loading decreased the ductility of the shear connection. The cross-sectional area of the crestbond rib was also shown to have a minor effect on the shear resistance of the crestbond rib shear connector. The failure mechanism of the crestbond rib shear connector was complex, and included compression, shear, and tension. As a failure mode, a crack was initiated in the middle of the concrete slab in a vertical direction, and propagated with increasing shear load. Then, horizontal cracks occurred and propagated to the front and rear faces of the specimens. Based on the results of this study, a design shear strength equation was proposed and compared with previously suggested equations.


crestbond rib;composite dowel;push-out test;shear connector;shear resistance;puzzle shape;equation of crestbond


  1. Chromiak, P. and Studnicka, J. (2006), "Load Capacity of Perforated Shear Connector", Int. J. Eng. Inform. Sci., 1(3), 23-30.
  2. European Committee for Standardization (Hrsg.) (2004), Eurocode 4: Design of composite steel and concrete structures, European Committee for Standardization.
  3. Jayas, B.S. and Hosain, M.U. (1989), "Behaviour of headed studs in composite beams: full-size tests", Can. J. Civil Eng., 16(5), 712-724.
  4. Ahn, J.H., Lee, C.G. and Won, J.H. (2010), "Shear resistance of the perfobond rib shear connector depending on concrete strength and rib arrangement", J. Construct. Steel Res., 66(10), 1295-1307.
  5. Bui, D.V. (2010), "Behaviour of Steel-Concrete Composite beams made of Ultra high performance concrete", Der Wirtschaftswissenschaftlichen Fakultater Universitat Leipzig, Leipzig, 9th October 2010.
  6. Kim, S.H., Lee, C.G., Davaadorj, A., Yoon, J.H. and Won, J.H. (2010), "Experimental evaluation of joints consisting of parallel perfobond ribs in steel-PSC hybrid beams", Int. J. Steel Struct., 10(4), 373-384.
  7. Kim, S.H., Ahn J.H., Choi, K.T. and Jung, C.Y. (2011), "Experimental evaluation of the shear resistance of corrugated perfobond rib shear connections", Adv. Struct. Eng., 14(2), 249-263.
  8. Kim, S.H., Choi, K.T., Park, S.J., Park, S.M. and Jung, C.Y. (2013), "Experiment shear resistance evaluation of Y-type perfobond rib shear connector", J. Construct. Steel Res., 82, 1-18.
  9. Kim, S.H., Choi, J., Park, S.J., Ahn, J.H. and Jung, C.Y. (2014a), "Behavior of composite girder with Y-type perfobond rib shear connector", J. Construct. Steel Res., 103, 275-289.
  10. Kim, S.H., Heo, W.H., Woo, K.S., Jung, C.Y. and Park, S.J. (2014b), "End bearing resistance of Y-type perfobond rib according to rib width-height ratio", J. Construct. Steel Res., 103, 101-116.
  11. Kim, S.H., Park, S.J., Heo, W.H. and Jung, C.Y. (2015), "Shear resistance characteristic and ductility of Ytype perfobond rib shear connector", Steel Compos. Struct., Int. J., 18(2), 497-517.
  12. Kraus, D. and Wurzer, O. (1997), "Nonlinear finite-element analysis of concrete dowels", Comput. Struct., 64(5-6), 1271-1279.
  13. Leonhardt, F., Andra, W., Andra, H.P. and Harre, W. (1987), "Vorteilhaftes Verbundmittel fur Stahlvebund-Tragwerke mit hoher Dauerfestigkeit", Beton und Stahlbetonbau, 82(12), 325-331.
  14. Lorenc, W., Kubica, E. and KoŻuch, M. (2010), "Testing procedures in evaluation of resistance of innovative shear connection with composite dowels", Archives Civil Mech. Eng., 10(3), 51-63.
  15. Maleki, S. and Bagheri, S. (2008), "Behavior of channel shear connectors, Part I: Experimental study", J. Construct. Steel Res., 64(12), 1333-1340.
  16. Maleki, S. and Mahoutian, M. (2009), "Experimental and analytical study on channel shearconnectors in fiber-reinforced concrete", J. Construct. Steel Res., 65(8-9), 1787-1793
  17. Medberry, S. and Shahrooz, B. (2002), "Perfobond shear connector for composite construction", AISC Eng. J., 39(1), 1048-1056.
  18. Mohammad, M.A., Ayad, S.A. and Bilavari, K. (2011), "Performance evaluation of shear stud connectors in composite beams with steel plate and RCC slab", Int. J. Earth Sci. Eng., 4(6), 586-591.
  19. Oguejiofor, E.C. and Hosain, M.U. (1994), "A parametric study of perfobond rib shear connectors", Can. J. Civil Eng., 21(4), 614-625.
  20. Oguejiofor, E.C. and Hosain, M.U. (1997), "Numerical analysis of push-out specimens with perforbond rib connectors", Comput. Struct., 62(4), 617-624.
  21. PreCo-Beam (2006), Prefabricated enduring composite beams based on innovative shear transmission, Final Report; Research Fund for Coal and Steel, Contract No. RFSR-CT-2006-00030. 01/07/2006-30/06/2009.
  22. Preco+ (2011), Prefabricated Enduring Composite Beams based on innovative Shear Transmission; RFCS RFS2-CT-2011-00026, Research Fund for Coal and Steel (RFCS) of the European Community, EU,
  23. Shariati, M., Ramli, N.H., Arabnejad, M.M. Sulong, K.H. and Mahoutian, M. (2011), "Shear resistance of channel shear connectors in plain, reinforced and lightweight concrete", Sci. Res. Essays, 6(4), 977-983.
  24. Shariati, M., Ramli Sulong, N.H., Suhatril, M., Shariati, A., Arabnejad Khanouki, M.M. and Sinaei, H. (2012), "Behaviour of C-shaped angle shear connectors under monotonic and fully reversed cyclic loading: An experimental study", Mater. Des., 41, 67-73.
  25. Shariati, M., Ramli Sulong, N.H., Shariati, A. and Khanouki, M.A. (2016a), "Behavior of V-shaped angle shear connectors: experimental and parametric study", Mater. Struct., 49(9), 3909-3926.
  26. Shariati, M., Ramli Sulong, N.H., Shariati, A. and Kueh, A.B.H. (2016b), "Comparative performance of channel and angle shear connectors in high strength concrete composites: An experimental study", Construct. Build. Mater., 120, 382-392
  27. Shim, C.S., Lee, P.G., Kim, D.W. and Chung, C.H. (2011), "Effects of group arrangement on the ultimate strength of stud shear connection", Compos. Construct. Steel Concrete, 6, 92-101.
  28. Suhaib, Y.K.A.D. and Liu, C.Y.Q. (2007), "Finite element simulation and parametric studies of perfobond rib connector", Am. J. Appl. Sci., 4(3), 122-127.
  29. Tue, N., Vinh, B.D. and Kuechler, M. (2008), "Perfobond rib shear connector made of UHPC", Proceedings of the 11th East Asia-Pacific Conference on Structural Engineering & Construction (EASEC-11), Taipei, Taiwan, November.
  30. Valente, I. and Cruz, P.J.S. (2004), "Experimental analysis of Perfobond shear connection between steel and lightweight concrete", J. Construct. Steel Res., 60(3-5), 465-479.
  31. Verissimo, G.S., Valente, M.I.B., Paes, J.L.R., Cruz, P.J.S. and Fakury, R.H. (2006), "Design and experimental analysis of a new shear connector for steel and concrete composite structures", Proceedings of the 3rd International Conference on Bridge Maintenance, Safety and Management, Porto, Portugal, July, pp. 68-72.
  32. Vianna, J.d.C., Costa-Neves, L.F., Vellasco, P.C.G.d.S. and de Andrade, S.A.L. (2008), "Structural behaviour of T-Perfobond shear connectors in composite girders: An experimental approach", Eng. Struct., 30(9), 2381-2391.
  33. Vianna, J.d.C., Costa-Neves, L.F., Vellasco, P.C.G.d.S. and de Andrade, S.A.L. (2009), "Experimental assessment of Perfobond and T-Perfobond shear connectors' structural response", J. Construct. Steel Res., 65(2), 408-421.
  34. Xue, D., Liu, Y., Yu, Z. and He, J. (2012), "Static behavior of multi-stud shear connectors for steel-concrete composite bridge", J. Construct. Steel Res., 74, 1-7.

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Supported by : National Research Foundation of Korea (NRF)