Steel and Composite Structures

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Study on seismic performance of SRC special-shaped columns with different loading angles

  • Qu, Pengfei (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Liu, Zuqiang (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Xue, Jianyang (School of Civil Engineering, Xi'an University of Architecture and Technology)
  • Received : 2021.09.07
  • Accepted : 2022.09.19
  • Published : 2022.09.25
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Abstract

In order to study the influence of loading angles on seismic performance of steel reinforced concrete (SRC) special-shaped columns, cyclic loading tests and finite element analysis (FEA) were both carried out. Seven SRC special-shaped columns, including two L-shaped columns, three T-shaped columns and two cross-shaped columns, were tested, and the failure patterns of the columns with different loading angles were obtained. Based on the tests, the FEA models of SRC special-shaped columns with different loading angles were established. According to the simulation results, hysteretic curves and seismic performance indexes, including bearing capacity, ductility, stiffness and energy dissipation capacity, were analyzed in detail. The results showed that the failure patterns were different for the columns with the same section and different loading angles. With the increasing of loading angles, the hysteretic curves became fuller and the bearing capacity and initial stiffness appeared increasing tendency, but the energy dissipation capacity changed insignificantly. When the loading angle changed, the ductility got better with the larger area of steel at the failure side for the unsymmetrical section and near the neutral axis for the symmetrical section, respectively.

Keywords

Acknowledgement

The research was funded by National Natural Science Foundation of China PR (No. 52278212), Shaanxi Innovation Capacity Support Programs (No. 2019TD-029), Shaanxi Scientific Research Project (No. 2021JM-351) and Scientific Research Project of Youth Innovation Team Construction of Shaanxi Department of Education (No. 21JP062), which is gratefully acknowledged.

References

  1. Abo-Zai, L., Hassan, A. and Abdel-Hafez, L.M. (2019), "Reparing post-heated L-shaped RC columns with advanced thin concrete jacketing", Con. Build. Mat, 44(2), 212-218. https://doi.org/10.1016/j.conbuildmat.2019.06.101.
  2. Cao, W.L., Wang, G.Y., Ou, J.P., Wei, W.X. and Wu, J.Y. (1994), "Behaviors of R.C. "+" shape columns under cyclic loading", Earthq. Eng. Eng. Vib., 14(3), 60-67. https://doi.org/10.13197/j.eeev.1994.03.007
  3. Cao, W.L., Wang, G.Y., Wei, W.X. and Wu, J.Y. (1995), "Behaviors of T-shaped column under different directional cyclic loading", Earthq. Eng. Eng. Vib., 15(4), 76-84. https://doi.org/10.13197/j.eeev.1995.04.009.
  4. Cao, W.L., Wang, G.Y., Wu, J.Y. and Wei, W.X. (1995), "Behaviors of "L" shape columns under different directional cyclic loading", Earthq. Eng. Eng. Vib., 15(1), 67-72. https://doi.org/10.13197/j.eeev.1995.01.008.
  5. Chen, Z.P. and Liu, X. (2018), "Seismic behavior of steel reinforced concrete cross-shaped column under combined torsion", Steel Comp. Struct., 26(4), 407-420. https://doi.org/10.12989/scs.2018.26.4.407.
  6. Davoudi, S.A.M. and Naghipour, M. (2020), "Presentation of Critical Buckling Load Correction Factor of AISC Code on LShaped Composite Columns by Numerical and Experimental Analysis", Int. J. Steel Struct., 20(5), 1682-1702. https://doi.org/10.1007/s13296-020-00404-7.
  7. Germano, F., Tiberti, G. and Plizzari, G. (2016), "Experimental behavior of SFRC columns under uniaxial and biaxial cyclic loads", Compos. Part B-Eng., 85, 76-92. https://doi.org/10.1016/j.compositesb.2015.09.010.
  8. Ghafouri-Nejad, A., Alirezaei, M., Mirhosseini, S.M. and Zeighami, E. (2021), "Parametric study on seismic response of the knee braced frame with friction damper", Structures, 32, 2073-2087. https://doi.org/10.1016/j.istruc.2021.04.009.
  9. Kim, C.S., Park, H.G., Chung, K.S. and Choi, I.R. (2014), "Eccentric axial load capacity of high-strength steel-concrete composite columns of various sectional shapes", J. Struct. Eng., 140(4), 04013091. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000879.
  10. Kim, H.G., Kim, H.M. and Kim, S.D. (2012), "Axial behavior and strength of yLC composite columns", Adv. Struct. Eng., 15(12), 2113-2130. https://doi.org/10.1260/1369-4332.15.12.2113.
  11. Kita, A., Cacalagli, N., Masciotta, M.G., Lourenco, P.B. and Uberini, F. (2020), "Rapid post-earthquake damage localization and quantification in masonry structures through multidimensional non-linear seismic IDA", Eng. Struct., 219, 110841. https://doi.org/10.1016/j.engstruct.2020.110841.
  12. Nzabonimpa, J.D. and Hong, W.K. (2019), "Experimental investigation of hybrid mechanical joints for L-shaped columns replacing conventional grouted sleeve connections", Eng. Struct., 185, 243-277. https://doi.org/10.1016/j.engstruct.2019.01.123.
  13. Ou, Y.C. and Truong, A.N. (2018), "Cyclic shear and flexural behavior of L- and T-column", ACI Struct. J., 115(6), 1603-1613. https://doi.org/10.14359/51702412.
  14. Patton, M.L. and Singh, K.D. (2017), "Buckling of fixed-ended concrete-filled steel columns under axial compression", Int. J. Steel Struct., 17(3), 1059-1071. https://doi.org/10.1007/s13296-017-9016-7.
  15. Pham, T.P. and Li, B. (2015), "Seismic performance assessment of L-shaped reinforced concrete columns", ACI Struct. J., 112(6), 667-678. https://doi.org/10.1061/9780784412848.146.
  16. Quang, K.M., Dang V.B.P., Han, S.W., Shin, M. and Lee, K. (2016), "Behavior of high-performance fiber-reinforced cement composite columns subjected to horizontal biaxial and axial loads", Con. Build. Mat, 106, 89-101. https://doi.org/10.1016/j.conbuildmat.2015.12.087.
  17. Ramamurthy, L.N. and Khan, A.H. (1983), "L-shaped column design for biaxial eccentricity", J. Struct. Eng., 109(8), 1903- 1917. https://doi.org/10.1061/(asce)0733-9445(1983)109:8(1903).
  18. Scott, B.D., Park, R. and Priestley, M.J.N. (1982), "Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates", ACI J., 79(1), 13-27. https://doi.org/10.1016/0378-7788(82)90060-3.
  19. Tao, M.X., Fan, J.S. and Nie, J.G. (2013), "Seismic behavior of steel reinforced concrete column-steel truss beam hybrid joints", Eng. Struct., 56, 1557-1569. https://doi.org/10.1016/j.engstruct.2013.07.029.
  20. Tokgoz, S. and Dundar, C. (2012) "Test of eccentrically loaded Lshaped section steel fibre high strength reinforced concrete and composite columns", Eng. Struct., 38(5), 134-141. https://doi.org/10.1016/j.engstruct.2012.01.009.
  21. Tsao, W.H., Hsu, C.T.T. (1993), "A nonlinear computer analysis of biaxially loaded L-shaped slender reinforced concrete columns", Comput. Struct., 49(4), 579-588. https://doi.org/10.1016/0045-7949(93)90062-I.
  22. Wang, J., Liu, Z.Q., Xue, J.Y. and Hu, C.M. (2018), "Effects of loading history on seismic performance of SRC T-shaped column, Part I: Loading along web", Struct. Eng. Mech., 68(2), 193-201. https://doi.org/10.12989/sem.2018.68.2.193
  23. Wang, P., Shi, Q.X., Wang, F. and Wang Q.W. (2021), "Seismic behaviour of enlarge cross steel-reinforced concrete columns under various loading", Steel Comp. Struct., 40(1), 33-43. https://doi.org/10.12989/scs.2021.40.1.033.
  24. Xiao, J.Z., Li, J. and Chen, J. (2011), "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.
  25. Xue, J.Y., Chen, Z.P., Zhao, H.T., Gao, L. and Liu, Z.Q. (2012), "Shear mechanism and bearing capacity calculation on steel reinforced concrete special-shaped columns", Steel Comp. Struct., 13(5), 473-487. https://doi.org/10.12989/scs.2012.13.5.473.
  26. Zhang, J., Li, H.N. and Li, C. (2021), "Seismic response of largespan spatial structures under multi-support and multidimensional excitations including rotational components", Earthq. Eng. Eng. Vib., 20, 141-159. https://doi.org/10.1007/s11803-021-2011-1.
  27. Zhou, C.F., Xue, J.Y., Hu, Z.B. and Liu, Z.Q. (2016), "Coupled translational-torsional response for SRC frame with specialshaped columns under earthquake", J. Build. Eng., 31, 101440. https://doi.org/10.1016/j.jobe.2020.101440.
  28. Zoppo, M.D., Ludovico, M.D., Verderame, G.M. and Prota, A. (2017), "Experimental behavior of nonconforming RC columns with deformed bars under constant axial load and fixed biaxial bending", J. Struct. Eng., 143(11), 04017153. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001892.