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Seismic performance of the thin-walled square CFST columns with lining steel tubes

  • Wang, Xuanding (School of Civil Engineering, Chongqing University) ;
  • Liu, Jiepeng (School of Civil Engineering, Chongqing University) ;
  • Wang, Xian-Tie (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Cheng, Guozhong (School of Civil Engineering, Chongqing University) ;
  • Ding, Yan (School of Civil Engineering, Xi'an University of Architecture & Technology)
  • Received : 2020.09.15
  • Accepted : 2022.08.03
  • Published : 2022.08.10

Abstract

This paper proposes an innovative thin-walled square concrete filled steel tubular (CFST) column with an octagonal/circular lining steel tube, in which the outer steel tube and the inner liner are fabricated independently of each other and connected by slot-weld or self-tapping screw connections. Twelve thin-walled square CFST columns were tested under quasi-static loading, considering the parameters of liner type, connection type between the square tube and liner, yield strength of steel tube, and the axial load ratio. The seismic performance of the thin-walled square CFST columns is effectively improved by the octagonal and circular liners, and all the liner-stiffened specimens showed an excellent ductile behavior with the ultimate draft ratios being much larger than 1/50 and the ductility coefficients being generally higher than 4.0. The energy dissipation abilities of the specimens with circular liners and self-tapping screw connections were superior to those with octagonal liner and slot-weld connections. Based on the test results, both the finite element (FE) and simplified theoretical models were established, considering the post-buckling strength of the thin-walled square steel tube and the confinement effect of the liners, and the proposed models well predicted the hysteretic behavior of the liner-stiffened specimens.

Keywords

Acknowledgement

The project is funded by the National Natural Science Foundation of China (Project No. 51908086 and 51678474), and the Natural Science Foundation of Chongqing, China (Project No. cstc2019jcyj-bshX0091).

References

  1. AISC 360 (2016), Specification for Structural Steel Buildings, AISC, Chicago, IL, USA.
  2. Aslani, F., Uy, B., Tao, Z. and Mashiri, F. (2015), "Predicting the axial load capacity of high-strength concrete filled steel tubular columns", Steel Comp. Struct., 19(4), 967-993. https://doi.org/10.12989/scs.2015.19.4.967.
  3. Attard, M.M. and Setunge, S. (1996), "Stress-strain relationship of confined and unconfined concrete", Mater. J., 93(5), 432-442.
  4. BS EN 1994-1-1 (1994), Eurocode 4: Design of Composite Steel and Concrete Structures. Part 1.1: General Rules and Rules for Building, London.
  5. CEB-FIP (1993), CEB-FIP Model Code 1990 CEB Bulletin d'Information, Thomas Telford, London.
  6. Collins M.P. Mitchell D. (1991), Prestressed Concrete Structures. Englewood Cliffs, NJ: Prentice Hall.
  7. Ding, F.X., Li, Z., Cheng, S. and Yu, Z.W. (2016), "Composite action of octagonal concrete-filled steel tubular stub columns under axial loading", Thin Wall Struct., 107, 453-461. https://doi.org/10.1016/j.tws.2016.07.012.
  8. Dong, H., Li, Y., Cao, W., Qiao, Q. and Li, R. (2018), "Uniaxial compression performance of rectangular CFST columns with different internal construction characteristics", Eng. Struct., 176, 763-775. https://doi.org/10.1016/j.engstruct.2018.09.051.
  9. GB/T 228-2002 (2002), Metallic Materials-Tensile Testing-Part 1: Method of Test at Room Temperature, Chinese Standard, Beijing, China.
  10. GB 50010 (2010), Code for Design of Concrete Structures, Chinese Standard, Beijing, China.
  11. GB 50936 (2014), Technical Code for Concrete Filled Steel Tubular Structures. Chinese Standard, Beijing, China.
  12. Ge, H. and Usami, T. (1992), "Strength of concrete-filled thinwalled steel box columns: experiment", J. Struct. Eng. ASCE, 118(11), 3036-3054. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:11(3036).
  13. Goto, Y., Mizuno, K. and Prosenjit Kumar, G. (2012), "Nonlinear finite element analysis for cyclic behavior of thin-walled stiffened rectangular steel columns with in-filled concrete", J. Struct. Eng., ASCE, 138(5), 571-584. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000504.
  14. Han, L.H., Li, W. and Bjorhovde, R. (2014), "Developments and advanced applications of concrete-filled steel tubular (CFST) structures: Members", J. Constr. Steel Res., 100, 211-228. https://doi.org/10.1016/j.jcsr.2014.04.016.
  15. Huang, C.S., Yeh, Y.K., Liu, G.Y., Hu, H.T., Tsai, K.C., Weng, Y.T., Wang, S.H. and Wu, M.H. (2002), "Axial load behavior of stiffened concrete-filled steel columns", J. Struct. Eng., ASCE, 128(9), 1222-1230. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1222).
  16. Kanishchev, R. and Kvocak, V. (2019), "Local buckling of rectangular steel tubes filled with concrete", Steel Comp. Struct., 31(2), 201-216. http://dx.doi.org/10.12989/scs.2019.31.2.201.
  17. Lachemi, M., Hossain, K.M.A. and Lambros, V.B. (2006), "Selfconsolidating concrete filled steel tube columns-Design equations for confinement and axial strength", Struct. Eng. Mech., 22(5), 541-562. https://doi.org/10.12989/sem.2006.22.5.541
  18. Lai, Z. and Varma, A.H. (2018), "High-strength rectangular CFT members: Database, modeling, and design of short columns", J. Struct. Eng., ASCE, 144(5), 04018036. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002026
  19. Lee, H.J., Park, H.G. and Choi, I.R. (2019), "Compression loading test for concrete-filled tubular columns with high-strength steel slender section", J. Constr. Steel Res., 159, 507-520. https://doi.org/10.1016/j.jcsr.2019.04.040.
  20. Liang, Q.Q. and Uy, B. (2000), "Theoretical study on the postlocal buckling of steel plates in concrete-filled box columns", Comput. Struct., 75(5), 479-490. https://doi.org/10.1016/S0045-7949(99)00104-2.
  21. Liang, W., Dong, J. and Wang, Q. (2018), "Axial compressive behavior of concrete-filled steel tube columns with stiffeners", Steel Comp. Struct., 29(2), 151-159. https://doi.org/10.12989/scs.2018.29.2.151.
  22. Liu, J., Li, X., Zang, X., Chen, Y.F. and Wang, X. (2018), "Hysteretic behavior and modified design of square TSRC columns with shear studs", Thin Wall Struct., 129, 265-277. https://doi.org/10.1016/j.tws.2018.04.007.
  23. Mander, J.B., Priestley, M.J. and Park, R. (1988), "Theoretical stress-strain model for confined concrete", J. Struct. Eng., ASCE, 114(8), 1804-1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804).
  24. Mou, B., Bai, Y. and Patel, V. (2020), "Post-local buckling failure of slender and over-design circular CFT columns with highstrength materials", Eng. Struct., 210, 110197. https://doi.org/10.1016/j.engstruct.2020.110197.
  25. O'Shea, M.D. and Bridge, R.Q. (2000), "Design of circular thinwalled concrete filled steel tubes", J. Struct. Eng., ASCE, 126(11), 1295-1303. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:11(1295).
  26. Park, R. (1988), "Ductility evaluation from laboratory and analytical testing"; In Proceedings of the 9th World Conference on Earthquake Engineering, Tokyo-Kyoto, Japan, 8, 605-616.
  27. Petrus, C., Hamid, H.A., Ibrahim, A. and Parke, G. (2010), "Experimental behaviour of concrete filled thin walled steel tubes with tab stiffeners", J. Constr. Steel Res., 66(7), 915-922. https://doi.org/10.1016/j.jcsr.2010.02.006.
  28. Qu, X., Chen, Z. and Sun, G. (2015), "Axial behaviour of rectangular concrete-filled cold-formed steel tubular columns with different loading methods", Steel Comp. Struct., 18(1), 71-90. http://dx.doi.org/10.12989/scs.2015.18.1.071.
  29. Richart, F.E., Brandtzaeg, A. and Brown, R.L. (1928), A Study of the Failure of Concrete under Combined Compressive Stresses, Ph.D. Dissertation, University of Illinois at Urbana Champaign, College of Engineering, Engineering Experiment Station.
  30. Sui, W., Cheng, H. and Wang, Z. (2018), "Bearing capacity of an eccentric tubular concrete-filled steel bridge pier", Steel Comp. Struct., 27(3), 285-295. https://doi.org/10.12989/scs.2018.27.3.285.
  31. Tao, Z., Han, L.H. and Wang, D.Y. (2008), "Strength and ductility of stiffened thin-walled hollow steel structural stub columns filled with concrete", Thin Wall Struct., 46(10), 1113-1128. https://doi.org/10.1016/j.tws.2008.01.007.
  32. Uy, B. (2000), "Strength of concrete filled steel box columns incorporating local buckling", J. Struct. Eng, ASCE, 126(3), 341-352. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:3(341).
  33. Wang, X. (2017), Study on the Behavior and Strength of TRC and TSRC Columns, Ph.D. Dissertation, Harbin Institute of Technology, Harbin. [in Chinese].
  34. Wang, Y.T., Cai, J., and Long, Y.L. (2017), "Hysteretic behavior of square CFT columns with binding bars", J. Constr. Steel Res., 131, 162-175. ttps://doi.org/10.1016/j.jcsr.2017.01.001.
  35. Wu, B., Zhao, X.Y. and Zhang, J.S. (2012), "Cyclic behavior of thin-walled square steel tubular columns filled with demolished concrete lumps and fresh concrete", J. Constr. Steel Res., 77, 69-81. ttps://doi.org/10.1016/j.jcsr.2012.05.003.
  36. Xiamuxi, A. and Hasegawa, A. (2011), "Compression test of RCFT columns with thin-walled steel tube and high strength concrete", Steel Comp. Struct, 11(5), 391-402. https://doi.org/10.12989/scs.2011.11.5.391
  37. Xiong, M.X., Liew, J.Y.R., Wang, Y.B., Xiong, D.X. and Lai, B. L. (2020), "Effects of coarse aggregates on physical and mechanical properties of C170/185 ultra-high strength concrete and compressive behaviour of CFST columns", Constr. Build. Mater., 240, 117967. https://doi.org/10.1016/j.conbuildmat.2019.117967.
  38. Yang, Y., Wang, Y. and Fu, F. (2014), "Effect of reinforcement stiffeners on square concrete-filled steel tubular columns subjected to axial compressive load", Thin Wall Struct., 82, 132-144. https://doi.org/10.1016/j.tws.2014.04.009.
  39. Zhang, Y., Xu, C. and Lu, X. (2007), "Experimental study of hysteretic behaviour for concrete-filled square thin-walled steel tubular columns", J. Constr. Steel Res., 63(3), 317-325. https://doi.org/10.1016/j.jcsr.2006.04.014.
  40. Zhou, X., Liu, J., Wang, X, Liu, P., Chung, K.F. and Wei, W. (2021), "Structural performance and compression resistances of thin-walled square CFST columns with steel lining tubes", J. Struct. Eng., ASCE, 147(7), 04021105. https://doi.org/10.1061/(ASCE)ST.1943-541X.0003069.
  41. Zhou, Z., Gan, D. and Zhou, X. (2019), "Improved composite effect of square concrete-filled steel tubes with diagonal binding ribs", J. Struct. Eng., ASCE, 145(10), 04019112. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002400.
  42. Zhu, J.Y. and Chan, T.M. (2018), "Experimental investigation on octagonal concrete filled steel stub columns under uniaxial compression", J. Constr. Steel Res., 147, 457-467. https://doi.org/10.1016/j.jcsr.2018.04.030.