Earthquakes and Structures

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Seismic behavior of steel reinforced concrete special-shaped column-beam joints

  • Liu, Z.Q. (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Xue, J.Y. (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Zhao, H.T. (College of Civil Engineering, Xi'an University of Architecture and Technology)
  • Received : 2015.12.31
  • Accepted : 2016.10.05
  • Published : 2016.10.25
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Abstract

This paper focuses on the study of seismic behavior of steel reinforced concrete special-shaped column-beam joints. Six specimens, which are designed according to the principle of strong-member and weak-joint core, are tested under low cyclic reversed load. Key parameters include the steel form in column section and the ratio of column limb height to thickness. The failure mode, load-displacement curves, ductility, stiffness degradations, energy dissipation capacity and shear deformation of joint core of the test subassemblies are analyzed. The results indicate that SRC special-shaped column-beam joints have good seismic behavior. All specimens failed due to the shear failure of the joint core, and the failure degree between the two sides of joint core is similar for the exterior joint but different for the corner joint. Compared to the joints with channel steel truss, the joints with solid web steel skeleton illustrate better ductility and energy dissipation capacity, but the loading capacity and stiffness are roughly close. With the increasing of the ratio of column limb height to thickness, the joints illustrate higher loading capacity and stiffness, better energy dissipation capacity, but worse ductility.

Keywords

Acknowledgement

Supported by : Natural Science Foundation of China

References

  1. Balaji, K.V.G.D. and Murty, D.S.R. (2001). "Reliability analysis of RC T-shaped column sections", Indian Concrete J., 75(3), 223-227.
  2. Cao, W.L., Hu, G.Z., Cui, L.C., Zhou, M.J., Hao, C.S. and Qu, Y.H. (2002a). "Experimental and analysis of seismic behavior of the +, L, T-shaped columns with concealed columns", J. Build. Struct., 23(1), 16-20. (in Chinese)
  3. Chen, C.C., Suswanto, B. and Lin, Y.J. (2009). "Behavior and strength of steel reinforced concrete beam-column joints with single-side force inputs", J. Constr. Steel Res., 65(8), 1569-1581. https://doi.org/10.1016/j.jcsr.2009.04.003
  4. Chen, Z.P., Zhang, X.D., Su, Y.S. and Zhao, H.T. (2006). "A new type of concrete special-shaped columns-study of steel reinforced concrete special-shaped columns concept system", Sichuan Build. Sci., 32(2), 25-27. (in Chinese)
  5. Chou, C.C. and Uang, C.M. (2002b). "Cyclic performance of a type of steel beam to steel-encased reinforced concrete column moment connection", J. Constr. Steel Res., 58(5-8), 637-663. https://doi.org/10.1016/S0143-974X(01)00089-X
  6. Ciutina, A.L. and Dubina, D. (2008b). "Column web stiffening of steel beam-to-column joints subjected to seismic actions", J. Struct. Eng., ASCE, 134(3), 505-510. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:3(505)
  7. Dundar, C. and Sahin, B. (1993). "Arbitrarily shaped reinforced concrete members subjected to biaxial bending and axial load", Comput. Struct., 49(4), 643-662.
  8. Ellobody, E. and Yong, B. (2011b). "Numerical simulation of concrete encased steel composite columns", J. Constr. Steel Res., 67(2), 211-222. https://doi.org/10.1016/j.jcsr.2010.08.003
  9. Kim, C.S., Park, H.G. and Chung, K.S. (2012c), "Eccentric axial load testing for concrete-encased steel columns using 800MPa steel and 100MPa Concrete", J. Struct. Eng., 138(8), 1019-1031. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000533
  10. Nie, J.G., Qin, K. and Cai, C.S. (2008a), "Seismic behavior of connections composed of CFSSTCs and steel-concrete composite beams: finite element analysis", J. Constr. Steel Res., 64(6), 680-688. https://doi.org/10.1016/j.jcsr.2007.12.003
  11. Rong, X., Zhang, J.X. and Li, Y.Y. (2013), "Seismic behavior of specially shaped column joints with X-shaped reinforcement", Transactions of Tianjin University, 19(2), 110-117. https://doi.org/10.1007/s12209-013-1863-5
  12. Sinha, S.N. (1996), "Design of cross (+) section of column", Indian Concrete J., 70(3), 153-158.
  13. Tokgoz, S. and Dundar, C. (2012d), "Test of eccentrically loaded L-shaped section steel fibre high strength reinforced concrete and composite columns", Eng. Struct., 38, 134-141. https://doi.org/10.1016/j.engstruct.2012.01.009
  14. Tu, Y.Q., Shen, Y.F., Zeng, Y.G. and Ma, L.Y. (2014), "Hysteretic behavior of multi-cell T-shaped concrete-filled steel tubular columns", Thin-Wall. Struct., 85, 106-116. https://doi.org/10.1016/j.tws.2014.08.005
  15. Xiao, J.Z., Li, J. and Chen, J. (2011a), "Experimental study on the seismic response of braced reinforced concrete frame with irregular columns", Earthq. Eng. Eng. Vib., 10(4), 487-494. https://doi.org/10.1007/s11803-011-0083-z
  16. Xue, J.Y., Chen, Z.P., Zhao, H.T., Gao, L. and Liu, Z.Q. (2012b), "Shear mechanism and bearing capacity calculation on steel reinforced concrete special-shaped columns", Steel Compos. Struct., 13(5), 473-487. https://doi.org/10.12989/scs.2012.13.5.473
  17. Zhou, T., Chen, Z.H. and Liu, H.B. (2012a), "Seismic behavior of special shaped column composed of concrete filled steel tubes", J. Constr. Steel Res., 75, 131-141. https://doi.org/10.1016/j.jcsr.2012.03.015

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