Steel and Composite Structures

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Seismic behavior of steel reinforced concrete (SRC) joints with new-type section steel under cyclic loading

  • Wang, Qiuwei (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Shi, Qingxuan (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Tian, Hehe (College of Civil Engineering, Xi'an University of Architecture and Technology)
  • Received : 2014.12.03
  • Accepted : 2015.06.29
  • Published : 2015.12.25
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Abstract

No significant improvement has been observed on the seismic performance of the ordinary steel reinforced concrete (SRC) columns compared with the reinforced concrete (RC) columns mainly because I, H or core cross-shaped steel cannot provide sufficient confinement for core concrete. Two improved SRC columns by constructing with new-type section steel were put forward on this background: a cross-shaped steel whose flanges are in contact with concrete cover by extending the geometry of webs, and a rotated cross-shaped steel whose webs coincide with diagonal line of the column's section. The advantages of new-type SRC columns have been proved theoretically and experimentally, while construction measures and seismic behavior remain unclear when the new-type columns are joined onto SRC beams. Seismic behavior of SRC joints with new-type section steel were experimentally investigated by testing 5 specimens subjected to low reversed cyclic loading, mainly including the failure patterns, hysteretic loops, skeleton curves, energy dissipation capacity, strength and stiffness degradation and ductility. Effects of steel shape, load angel and construction measures on seismic behavior of joints were also analyzed. The test results indicate that the new-type joints display shear failure pattern under seismic loading, and steel and concrete of core region could bear larger load and tend to be stable although the specimens are close to failure. The hysteretic curves of new-type joints are plumper whose equivalent viscous damping coefficients and ductility factors are over 0.38 and 3.2 respectively, and this illustrates the energy dissipation capacity and deformation ability of new-type SRC joints are better than that of ordinary ones with shear failure. Bearing capacity and ductility of new-type joints are superior when the diagonal cross-shaped steel is contained and beams are orthogonal to columns, and the two construction measures proposed have little effect on the seismic behavior of joints.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. Chen, X.G., Mu, Z.G. and Zhang, J.B. (2009), "Experimental study on the seismic behavior of steel reinforced concrete columns", J. Univ. Sci. Technol., 31(12), 1516-1524. [In Chinese]
  2. Chen, C.H., Wang, C.K. and Sun, H.Z. (2014), "Experimental study on seismic behavior of full encased steel-concrete composite columns", J. Struct. Eng., 140(6), 1-10.
  3. Chen, Z.P., Xu, J.J., Chen, Y.L. and Xue, J.Y. (2015), "Seismic behavior of steel reinforced concrete (SRC) T-shaped column-beam planar and 3D hybrid joints under cyclic loads", Earthq. Struct., 8(3), 555-572. https://doi.org/10.12989/eas.2015.8.3.555
  4. Chou, C.C. and Uang, C.M. (2007), "Effects of continuity plate and transverse reinforcement on cyclic behavior of SRC moment connections", J. Struct. Eng., 133(1), 96-104. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:1(96)
  5. Chung, H.S., Yang, K.H. and Lee, Y.H. (2002), "Stress-strain curve of laterally confined concrete", Eng. Struct., 24(9), 1153-1163. https://doi.org/10.1016/S0141-0296(02)00049-4
  6. Design code (2001), Technical specification for steel reinforced concrete, JGJ138-2001, Beijing, China.
  7. Fan, J.S., Li, Q.W., Nie, J.G. and Zhou, H. (2014), "Experimental study on the seismic performance of 3D joints between concrete-filled square steel tubular columns and composite beams", J. Struct. Eng., 140(12), 1-13.
  8. Guo, Z.X., Lin, H. and Liu, Y. (2010), "Experimental study on seismic behavior of SRC columns with different stirrup configuration", J. Build. Struct., 31(4), 110-115. [In Chinese]
  9. Jiang, R. and Jia, J.Q. (2007), "Seismic ductility of very-high strength-concrete short columns subject to combined axial loading and cyclic lateral loading", J. Chongqing Univ. (English Edition), 6(3), 205-212.
  10. Joao, B.M. and Rodrigo, B.C. (2005), "Numerical analysis of composite steel-concrete column of arbitrary cross section", J. Struct. Eng., 131(11), 1721-1730. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:11(1721)
  11. Karimi, K., El-Dakhakhni, W. and Tait, M. (2012), "Behavior of slender steel-concrete composite columns wrapped with FRP jackets", J. Perform. Construct. Facil., 26(5), 590-599. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000280
  12. Kian, K., Wael, W. and Michael, J. (2012), "Behavior of slender steel-concrete composite columns wrapped with FRP jackets", J. Perf. Cons. Fac., 26(5), 590-599. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000280
  13. Kim, S.H., Jung, C.Y. and Ann, J.H. (2011), "Ultimate strength of composite structure with different degrees of shear connection", Steel Compos. Struct., Int. J., 11(5), 375-390. https://doi.org/10.12989/scs.2011.11.5.375
  14. Liu, Z.Q., Xue, J.Y., Peng, X.N. and Gao, L. (2015), "Cyclic test for beam-to-column abnormal joints in steel moment-resisting frames", Steel Compos. Struct., Int. J., 18(5), 1177-1195. https://doi.org/10.12989/scs.2015.18.5.1177
  15. Lu, X.L., Yin, X.W. and Jiang, H.J. (2014), "Experimental study on hysteretic properties of SRC columns with high steel ratio", Steel Compos. Struct., Int. J., 17(3), 287-303. https://doi.org/10.12989/scs.2014.17.3.287
  16. Ma, H.W., Jiang, W.S. and Cho, C.D. (2011), "Experimental study on two types of new beam-to-column connections", Steel Compos. Struct., Int. J., 11(4), 291-305. https://doi.org/10.12989/scs.2011.11.4.291
  17. Mander, J.B., Priestley, M.J.N. and Park, R. (1988), "Theoretical stress-strain model for confined concrete", J. Struct. Eng., 114(8), 1804-1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804)
  18. Minae, F. and Koichi, M. (2008), "Seismic performance of new type steel-concrete composite structures considering characteristic both SRC and CFT structures", Proceedings of 14th World Conference on Earthquake Engineering, Beijing, China, October.
  19. Morino, S. and Kawaguchi, J. (2005), "Research on and construction of the concrete-filled steel tube column system in Japan", Int. J. Steel Struct., 5(4), 277-298.
  20. Nishiyama, I., Fujimoto, T., Fukumoto, T. and Yoshioka, K. (2004), "Inelastic force-deformation response of joint shear panels in beam-column moment connections to concrete-filled tubes", J. Struct. Eng., 130(2), 244-252. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(244)
  21. Park, R. (1989), "Evaluation of ductility of structures and structural subassemblages from laboratory testing", Bull. New Zealand Soc. Earthq. Eng., 22(3), 155-166.
  22. Sav, V., Campian, C. and Senila, M. (2011), "Composite steel-concrete columns with high strength concrete versus normal strength concrete", Civil Eng. Arch., 54(1), 74-81.
  23. Shim, C.S., Chung, Y.S. and Han, J.H. (2008), "Cyclic response of concrete-encased composite columns with low steel ratio", Proceedings of the Institution of Civil Engineers-Struct. Build., 161(2), 77-89.
  24. Tanaka, Y., Kaneko, Y. and Yashiro, H. (2000), "Strengthing of reinforced concrete columns by central reinforcing steel element", Proceedings of 12th World Conference on Earthquake Engineering, Auckland, New Zealand, February.
  25. Wang, Q.W., Shi, Q.X., Jiang, W.S., Zhang, X.H., Hou, W. and Tian, Y. (2013), "Experimental study on seismic behavior of steel reinforced concrete columns with new-type cross sections", J. Build. Struct., 34(8), 18-24. [In Chinese]
  26. Wang, T.C., Zhang, X.H., Zhao, H.L. and Qi, J.W. (2010), "Experimental research on seismic behavior of exterior joints with specially shaped columns reinforced by fiber", Ind. Construct., 40(1), 46-50.
  27. Yasushi, N., Shigeyuki, T. and Nozomu, B. (2004), "Flexural behavior of steel reinforced concrete columns with T-shaped steel", Proceedings of 13th World Conference on Earthquake Engineering, Vancouver, B.C., Canada, August.
  28. Zhang, S.A., Zhao, Z.Z. and He, X.Q. (2012), "Flexural behavior of SRC columns under axial and bilateral loading", Appl. Mech. Mater., 166, 3383-3390.
  29. Zheng, S.S., Lou, H.J., Wang, X.F. and Li, Z.Q. (2012), "Study on displacement ductility coefficient of steel reinforced high-strength concrete column", Adv. Mater. Res, 368, 1097-1100.

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