Steel and Composite Structures

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Mechanical behavior of prefabricated steel-concrete composite beams considering the clustering degree of studs

  • Gao, Yanmei (Department of Bridge Engineering, School of Civil Engineering, Chongqing Jiaotong University) ;
  • Fan, Liang (Department of Bridge Engineering, School of Civil Engineering, Chongqing Jiaotong University) ;
  • Yang, Weipeng (Mianzhu Municipal Bureau of Communication) ;
  • Shi, Lu (Xiangyang Municipal Engineering Design Institute Co. LTD) ;
  • Zhou, Dan (Zhejiang Highway Technicians College) ;
  • Wang, Ming (Department of Bridge Engineering, Southwest Jiaotong University)
  • Received : 2021.11.10
  • Accepted : 2022.11.01
  • Published : 2022.11.10
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Abstract

The mechanical behaviors of the prefabricated steel-concrete composite beams are usually affected by the strength and the number of shear studs. Furthermore, the discrete degree of the arrangement for shear stud clusters, being defined as the clustering degree of shear stud λ in this paper, is an important factor for the mechanical properties of composite beams, even if the shear connection degree is unchanged. This paper uses an experimental and calculation method to investigate the influence of λ on the mechanical behavior of the composite beam. Five specimens (with different λ but having the same shear connection degree) of prefabricated composite beams are designed to study the ultimate supporting capacity, deformation, slip and shearing stiffness of composite beams. Experimental results are compared with the conventional slip calculation method (based on the influence of λ) of prefabricated composite beams. The results showed that the stiffness in the elastoplastic stage is reduced when λ is greater than 0.333, while the supporting capacity of beams has little affected by the change in λ. The slip distribution along the beam length tends to be zig-zagged due to the clustering of studs, and the slip difference increases with the increase of λ.

Keywords

References

  1. AASHTO LRFD (2020), AASHTO LRFD Bridge Design Specifications, American Association of State Highway and Transportation Officials, Washington, DC, USA.
  2. Alireza, S.K. and Shokrieh, M.M. (2021), "A strain-rate-dependent analytical model for composite bolted joints", Steel Compos. Struct., 41(2), 279-292. http://dx.doi.org/10.12989/scs.2021.41.2.279.
  3. EN 1994-1-1:2004. (2004), Eurocode 4 - Design of Composite Steel Concrete Structures. Brussels: European Committee for Standardization (CEN).
  4. Fan, L., Li, H.Y. and Yang, G. (2018), "Strain-type cross-section misalignment testing device", China, ZL 201811627333. 1, Patent Office of China.
  5. Gluhovic, N., Markovic, Z., Spremic, M. and Pavlovic, M. (2020), "Mechanically fastened shear connectors in prefabricated concrete slabs-experimental analysis", Steel Compos. Struct., 36(4). https://doi.org/10.12989/scs.2020.36.4.369.
  6. Hallmark, R., White, H. and Collin, P. (2012), "Prefabricated bridge construction across Europe and America, Pract Period", Struct. Des. Constr., 17(3), 82-92. http://dx.doi.org/10.1061/(ASCE)SC.1943-5576.0000116.
  7. Hatami, A. (2014), Design of Shear Connectors for Precast Concrete Decks in Concrete Girder Bridges, Ph.D. Dissertation, University of Nebraska.
  8. Japan Society of Civil Engineers (2007), Standard Specifications for Concrete Structures
  9. Jiang, L.Z., Yu, Z.W. and Li, J. (2003), "Theoretical analysis of slip and deformation of steel-concrete composite beam under uniformly distributed loads", Eng. Mech., 20(2), 133-137. http://dx.doi.org/10.3969/j.issn.1000-4750.2003.02.025.
  10. Johnson, R.P. (2008), "Composite structures of steel and concrete: Beams, slabs, columns, and frames for buildings", Xfem Fracture Anal. Compos., 45(22), 5675-5687. http://dx.doi.org/10.1002/9780470774625.fmatter.
  11. Lam, D. (2007), "Capacities of headed stud shear connectors in composite steel beams with precast hollowcore slabs", J. Construct. Steel Res., 63(9), 1160-1174. https://doi.org/10.1016/j.jcsr.2006.11.012.
  12. Liang, J.F., Zhang, L.F., Yang, Y.H. and Wei, L. (2021), "Flexural behavior of partially prefabricated partially encased composite beams", Steel Compos. Struct., 38(6) https://doi.org/10.12989/scs.2021.38.6.705.
  13. Luo, K., Wang, D.H. and Zhang, Q. (2013), "Design of composite girders for non-navigable span bridge of Hong Kong-ZhuhaiMacau bridge in shallow water area", Bridge Construct., 43(3), 99-102.
  14. Noel, M., Wahab, N. and Soudki, K. (2016), "Experimental investigation of connection details for precast deck panels on concrete girders in composite deck construction", Eng. Struct., 106(JAN.1), 15-24. https://doi.org/10.1016/j.engstruct.2015.10.002.
  15. Shim, C.S., Chung, C.H., Kim, I.K. and Kim, Y.J. (2010), "Development and application of precast decks for composite bridges", Struct. Eng., http://dx.doi.org/10.2749/101686610791283623.
  16. Spremic, M., Pavlovic, M., Markovic, Z., Veljkovic, M. and Budjevac, D. (2018), "Fe validation of the equivalent diameter calculation model for grouped headed studs", Steel Compos. Struct., 26(3), 375-386. https://doi.org/10.12989/scs.2018.26.3.375.
  17. GB 50017-2017 (2017), Standard for Design of Steel Structures, Ministry of Housing and Urban-Rural Development of the People's Republic of China, Beijing, China.
  18. Tawadrous, R. and Morcous, G. (2019), "Design of shear pocket connection in full-depth precast concrete deck systems", Eng. Struct., 179, 367-386. https://doi.org/10.1016/j.engstruct.2018.11.003.
  19. Wang, H.P. (2021), "Interfacial interaction and deformation characteristics of composite beams with interfacial slip considered", China Civil Eng. J., 54(12), 12. https://doi.org/10.15951/j.tmgcxb.2021.12.009.
  20. Wang, Y.H., Yu, J., Liu, J.P. and Chen, Y.F. (2019), "Experimental study on assembled monolithic steel-concrete composite beam in positive moment", Eng. Struct., 180, 494-509. https://doi.org/10.1016/j.engstruct.2018.11.034.
  21. Wu, C.L., Kan, J.C., Wang, Q.H., Liu, J.M. and Li, Z.Q. (2021), "FEM analysis of the modular prefabricated steel-concrete composite beam-column internal joint under reciprocating action", Steel Compos. Struct., 41(1), http://dx.doi.org/10.12989/scs.2021.41.1.045.
  22. Zeng, X., Jiang, S.F. and Zhou, D. (2019), "Effect of shear connector layout on the behavior of steel-concrete composite beams with interface slip", Appl. Sci., 9(1), https://doi.org/10.3390/app9010207.