Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Interfacial shear resistance of angle shear connectors welded to concrete filled U-shaped CFS beam

  • Oh, Hyoung Seok (Department of Architecture and Architectural Engineering, Seoul National University) ;
  • Shin, Hyeongyeop (Department of Architecture and Architectural Engineering, Seoul National University) ;
  • Ju, Youngkyu (Department of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Kang, Thomas H.K. (Department of Architecture and Architectural Engineering, Seoul National University)
  • Received : 2022.01.10
  • Accepted : 2022.04.14
  • Published : 2022.05.10
⟨ Previous Next ⟩

Abstract

For multi-story structural systems, Korean steel industry has fostered development of a steel-concrete composite beam. Configuration of the composite beam is characterized by steel angle shear connectors welded to a U-shaped cold formed-steel beam. Effects of shear connector orientation and spacing were studied to evaluate current application of the angle shear connector design equation in AC495. For the study, interfacial shear resistance behavior was investigated by conducting 24 push-out tests and attuned using unreinforced push-out specimens. Interfacial shear to horizontal slip response was reported along with corresponding failure patterns. Pure shear connector strength was also evaluated by excluding concrete shear contribution, which was estimated in relation to steel beam-slab interface separation or interfacial crack width.

Keywords

Acknowledgement

The research described in this paper was financially supported by the POSCO and the National Research Foundation of Korea (NRF) (No. 2021R1A5A1032433). The testing was done at the POSCO laboratory, and the assistance of Dr. Jin-Won Kim of POSCO and Mr. Hee-Hoon Kim of DRB is greatly appreciated. During the process of the research, the second and fourth authors primarily contributed to the publications of AC495 and ICC-ES (ESR-4134, U-shaped steel-contribute composite beam (BESTOBEAM system)). The views expressed are those of the authors, and do not necessarily represent those of the sponsor.

References

  1. AASHTO (2017), AASHTO LRFD Bridge Design Specification, American Association of State Highway and Transportation Officials, Washington DC, U.S.A.
  2. ACI Committee 318 (2019), Building Code Requirements for Structural Concrete (ACI 318-19), American Concrete Institute, Farmington Hills, MI, U.S.A.
  3. Ahn, H.J., Jung, I.Y., Kim, Y.J. and Hwang, J.S. (2015), "Shear resistance of BESTOBEAM shear connector according to the length", J. Korean Soc. Steel Construct., 27(5), 483-491. https://doi.org/10.7781/kjoss.2015.27.5.483.
  4. AISC (2016), Specification for Structural Steel Buildings (ANSI/AISC 360-16), American Institute of Steel Construction, Chicago, IL, USA.
  5. Baek, J.W., Yang, H.K., Park, H.G., Eom, T.S. and Hwang, H.J. (2020), "Experimental study on the hybrid shear connection using headed studs and steel plates", Steel Compos. Struct., 37(6), 649-662. https://doi.org/10.12989/scs.2020.37.6.649.
  6. Baran, E. and Topkaya, C. (2012), "An experimental study on channel type shear connectors", J. Construct. Steel Res., 74(12), 108-117. https://doi.org/10.1016/j.jcsr.2012.02.015.
  7. Biggs, K.A., Ramseyer, C., Ree, S. and Kang, T.H.K. (2015), "Experimental testing of cold-formed built-up members in pure compression", Steel Compos. Struct., 18(6), 1331-1351, https://doi.org/10.12989/scs.2015.18.6.1331.
  8. CEN (2004), Eurocode 4: Design of Composite Steel and Concrete Structures - Part 1-1: General Rules and Rules for Buildings, European Committee for Standardization, Brussels, Belgium.
  9. Ciutina, A.L. and Stratan, A. (2011), "Cyclic performance of shear connectors", Proceedings of Composite Construction in Steel and Concrete VI, 52-64. https://doi.org/10.1061/41142(396)5.
  10. CSA (2001), CAN/CSA-S16-01, Limit States Design of Steel Structures, Canadian Standard Association, Rexdale, Ontario, Canada.
  11. ICC-ES (2018), Acceptance Criteria for Cold-Formed Steel Structural Beams with Steel Angle Anchors Acting Compositely with Cast-in-Place Concrete Slabs (AC495), ICC Evaluation Service, Country Club Hills, IL, USA.
  12. Kang, T.H.K. and Wallace, J.W. (2008), "Seismic performance of reinforced concrete slab-column connections with thin plate stirrups", ACI Struct. J., 105(5), 617-625. https://doi.org/10.14359/19945.
  13. Kang, T.H.K., Kim, K., Kim, S., Jung, I.Y. and Kim, J.W. (2017), "Development of design equation for steel angle anchors welded to hat-shaped cold-formed steel section", The 2017 World Congress on Advances in Structural Engineering and Mechanics (ASEM17), Ilsan, Korea, August.
  14. Kang, T.H.K., Wallace, J.W. and Elwood, K.J. (2009), "Nonlinear modeling of flat-plate systems", J. Struct. Eng., 135(2), 147-158. https://doi.org/10.1061/(asce)0733-9445(2009)135:2(147).
  15. Khalilian, M. (2015), "Angle shear connectors capacity", Modares Civil Eng. J., 15(3), 51-62. http://mcej.modares.ac.ir/article-16-7717-en.html.
  16. Khorramian, K., Maleki, S., Shariati, M. and Ramli Sulong, N.H. (2015), "Behavior of tilted angle shear connectors", PLoS ONE, 10(12), e0144288. https://doi.org/10.1371/journal.pone.0144288.
  17. Kim, J.W., Lee, C.H. and Kang, T.H.K. (2014a), "Shearhead reinforcement for concrete slab to concrete-filled tube column connections", ACI Struct. J., 111(3), 629-638. https://doi.org/10.14359/51686623.
  18. Kim, Y.J., Bae, J.H., Ahn, T.S. and Jang, D.W. (2014b), "Push-out test on welded angle shear connectors used in composite beams", J. Korean Soc. Steel Construct., 26(3), 155-167. https://doi.org/10.7781/kjoss.2014.26.3.155.
  19. Lasheen, M.R.M. (2017), Effective Width of Steel-Lightweight Concrete Composite Girders, Ph.D. Dissertation, Ain Shams University, Cairo, Egypt.
  20. Lee, M.K., Shin, K.J., Lee, J.S. and Chae, I.S. (2019), "Push-out test on evaluation of shear strength using angle shear connectors", J. Korean Soc. Steel Construct., 31(6), 413-421. https://doi.org/10.7781/kjoss.2019.31.6.413.
  21. Maleki, S. and Mehrdad, M. (2009), "Experimental and analytical study on channel shear connectors in fiber-reinforced concrete", J. Construct. Steel Res. 65(8), 1787-1793. http://dx.doi.org/10.1016/j.jcsr.2009.04.008.
  22. Pashan, A. (2006), Behaviour of Cannel Sear Cnnectors: Push-Out Tests, Master. Thesis, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
  23. Probst, A.D., Kang, T.H.K., Ramseyer, C. and Kim, U. (2010), "Composite flexural behavior of full-scale concrete-filled tubes without axial loads", J. Struct. Eng., 136(11), 1401-1412. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000241.
  24. Rao, S.N. (1970), Composite Construction-Tests on Small Scale Shear Connectors, The Institute of Engineers, Australia, Civil Engineering Transactions, April.
  25. Saidi, T., Furuuchi, H. and Ueda, T. (2008), "The transferred shear force-relative displacement relationship of the shear connector in steel-concrete sandwich beam and its model", Doboku Gakkai Ronbunshuu E, 64(1), 122-141. https://doi.org/10.2208/jsceje.64.122.
  26. Shariati, A., Shariati, M., Sulong, N.H.R., Suhatril, M., Khanouki, M.M.A. and Mahoutian, M. (2014), "Experimental assessment of angle shear connectors under monotonic and fully reversed cyclic loading in high strength concrete", Construct. Build. Mater., 52(33), 276-283. https://doi.org/10.1016/j.conbuildmat.2013.11.036.
  27. Shariati, M., Tahmasbi, F., Mehrabi, P., Bahadori, A. and Toghroli, A. (2020), "Monotonic behavior of C and L shaped angle shear connectors within steel-concrete composite beams: an experimental investigation", Steel Compos. Struct., 35(2), 237-247. https://doi.org/10.12989/scs.2020.35.2.237.
  28. Slutter, R.G. and Driscoll Jr., G.C. (1962), Test Results and Design Recommendations for Composite Beams, Fritz Laboratory Report No. 279.10, Lehigh University, Bethlehem, PA, USA.
  29. Soty, R. (2011), Formulation of Shear Force-Relative Displacement Relationship of L-Shape Shear Connector in Steel-Concrete Composite Structures, Ph.D. Dissertation, Kochi University of Technology, Kochi, Japan.
  30. Vecchio, F.J. and Collins, M.P. (1986), "Modified compression-field theory for reinforced concrete elements subjected to shear", ACI J., 83(2), 219-231.
  31. Viest, I.M., Siess, C.P., Appleton, J.H. and Newmark, N.M. (1952), Full Scale Tests on Channel Shear Connectors in Composite T-Beams, Bulletin Series No. 405, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
  32. Yokota, H. and Kiyomia, O. (1987), Load Carrying Capacity of Shear Connectors Made of Shape Steel in Steel-Concrete Composite Members, Structures division subaqueous tunnels and pipelines laboratory PARI Technical Note 0595.