Steel and Composite Structures

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Analysis and design of demountable circular CFST column-base connections

  • Li, Dongxu (School of Civil Engineering, The University of Sydney) ;
  • Wang, Jia (School of Civil and Environmental Engineering, The University of New South Wales) ;
  • Uy, Brian (School of Civil Engineering, The University of Sydney) ;
  • Aslani, Farhad (School of Civil, Environmental and Mining Engineering, The University of Western Australia) ;
  • Patel, Vipul (School of Engineering and Mathematical Sciences, La Trobe University)
  • Received : 2017.12.25
  • Accepted : 2018.07.03
  • Published : 2018.09.10
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Abstract

In current engineering practice, circular concrete-filled steel tubular (CFST) columns have been used as effective structural components due to their significant structural and economic benefits. To apply these structural components into steel-concrete composite moment resisting frames, increasing number of research into the column-base connections of circular CFST columns have been found. However, most of the previous research focused on the strength, rigidity and seismic resisting performance of the circular CFST column-base connections. The present paper attempts to investigate the demountability of bolted circular CFST column-base connections using the finite element method. The developed finite element models take into account the effects of material and geometric nonlinearities; the accuracy of proposed models is validated through comparison against independent experimental results. The mechanical performance of CFST column-base connections with both permanent and demountable design details are compared with the developed finite element models. Parametric studies are further carried out to examine the effects of design parameters on the behaviour of demountable circular CFST column-base connections. Moreover, the initial stiffness and moment capacity of such demountable connections are compared with the existing codes of practice. The comparison results indicate that an improved prediction method of the initial stiffness for these connections should be developed.

Keywords

Acknowledgement

Supported by : Australian Research Council (ARC)

References

  1. ABAQUS (2012), ABAQUS standard user's manual, Version 6.12, Dassault Systemes Corp., Providence, RI, USA.
  2. ACI-318 (2008), Building code requirements for reinforced concrete; Detroit, MI, USA.
  3. Ali, A., Kim, D. and Cho, S.G. (2013), "Modelling of nonlinear cyclic load behaviour of I-shaped composite steel-concrete shear walls of nuclear power plants", Nucl. Eng. Technol., 45(1), 89-98. https://doi.org/10.5516/NET.09.2011.055
  4. Architectural Institute of Japan (AIJ) (1987), Structural calculations of steel reinforced concrete structures, Tokyo, Japan.
  5. Aslani, F., Uy, B., Tao, Z. and Mashiri, F. (2015), "Behaviour and design of composite columns incorporating compact highstrength steel plates", J. Constr. Steel Res., 107, 94-110. https://doi.org/10.1016/j.jcsr.2015.01.005
  6. Aslani, F., Uy, B., Kang, W.H. and Hicks, S.J. (2016), "Statistical calibration of safety factors for flexural stiffness of composite columns", Steel Compos. Struct., Int. J., 20(1), 127-145. https://doi.org/10.12989/scs.2016.20.1.127
  7. ATC-24 (1992), "Guidelines for cyclic seismic testing of components of steel structures for buildings; Report No. ATC-24", Applied Technology Council, Redwood City, CA, USA.
  8. Bruneau, M. and Marson, J. (2004), "Seismic design of concretefilled circular steel bridge piers", ASCE, J. Bridge Eng., 9(1), 24-34. https://doi.org/10.1061/(ASCE)1084-0702(2004)9:1(24)
  9. Ellobody, E., Young, B. and Lam, D. (2006), "Behaviour of normal and high strength concrete-filled compact steel tube circular stub columns", J. Constr. Steel Res., 62, 706-715. https://doi.org/10.1016/j.jcsr.2005.11.002
  10. Eurocode 3, Part 1-8 (2005), Design of steel structures - Design of joints, European Committee for Standardisation, Brussel, Belgium.
  11. Eurocode 4 (2004), Design of composite steel and concrete structures, part 1.1: General rules and rules for buildings. BS EN 1994-1-1: 2004: London, UK.
  12. Gorgolewski, M. (2006), "The implications of reuse and recycling for the design of steel buildings", Can. J. Civil Eng., 33(4), 489-496. https://doi.org/10.1139/l06-006
  13. Han, L.H. (2004), "Flexural behaviour of concrete-filled steel tubes", J. Constr. Steel Res., 60(2), 313-337. https://doi.org/10.1016/j.jcsr.2003.08.009
  14. Hitaka, T., Suita, K. and Kato, M. (2003), "CFST column base design and practice in Japan", Proceedings of the International Workshop on Steel and Concrete Composite Construction (IWSCCC-2003); Report No. NCREE-0.-0.26, National Centre for Research in Earthquake Engineering, Taipei, Taiwan.
  15. Hsu, H.L. and Lin, H.W. (2006), "Improving seismic performance of concrete-filled tube to base connections", J. Constr. Steel Res., 62, 1333-1340. https://doi.org/10.1016/j.jcsr.2006.02.002
  16. Jia, L.J. and Kuwamura, H. (2014), "Prediction of cyclic behaviours of mild steel at large plastic strain using coupon tests results", ASCE J. Struct. Eng., 140(2), 441-454.
  17. Kim, H.J., Hu, J.W. and Hwang, W.S. (2015), "Cyclic testing for structural detail improvement of CFT column-foundation connections", Sustainability, 7, 5260-5281. https://doi.org/10.3390/su7055260
  18. Lehman, D.E. and Roeder, C.W. (2012), "Foundation connections for circular concrete-filled tubes", J. Constr. Steel Res., 78, 212-225. https://doi.org/10.1016/j.jcsr.2012.07.001
  19. Li, D., Uy, B. Patel, V.I. and Aslani, F. (2016a), "Behaviour and design of demountable steel column-column connections", Steel Compos. Struct., Int. J., 22(2), 428-429.
  20. Li, D., Uy, B., Aslani, F. and Patel, V.I. (2016b), "Analysis and design of demountable steel column-baseplate connections", Steel Compos. Struct., Int. J., 22(4), 753-775. https://doi.org/10.12989/scs.2016.22.4.753
  21. Li, D., Uy, B., Patel, V.I. and Aslani, F. (2017a), "Analysis and design of demountable embedded steel column base connections", Steel Compos. Struct., Int. J., 23(3), 303-315. https://doi.org/10.12989/scs.2017.23.3.303
  22. Li, D., Uy, B., Aslani, F. and Patel, V. (2017b), "Behaviour and design of demountable CFST column-column connections under tension", J. Constr. Steel Res., 138, 761-773. https://doi.org/10.1016/j.jcsr.2017.08.027
  23. Li, D., Uy, B., Patel, V. and Aslani, F. (2018), "Behaviour and design of demountable CFST column-column connections subjected to compression", J. Constr. Steel Res., 141, 262-274. https://doi.org/10.1016/j.jcsr.2017.11.021
  24. Mirza, O. and Uy, B. (2010), "Behaviour of composite beamcolumn flush end-plate connections subjected to lowprobability, high-consequence loading", Eng. Struct., 33(2), 647-662. https://doi.org/10.1016/j.engstruct.2010.11.024
  25. Moon, J., Roeder, C.W., Lehman, D.E. and Lee, H.E. (2012), "Analytical modeling of bending of circular concrete-filled steel tubes", Eng. Struct., 42, 349-361. https://doi.org/10.1016/j.engstruct.2012.04.028
  26. Moynihan, M.C. and Allwood, J.M. (2014), "Viability and performance of demountable composite connectors", J. Constr. Steel Res., 99, 47-56. https://doi.org/10.1016/j.jcsr.2014.03.008
  27. Rehman, N., Lam, D., Dai, X. and Ashour, A.F. (2016), "Experimental study on demountable shear connectors in composite slabs with profiled decking", J. Constr. Steel Res., 122, 178-189. https://doi.org/10.1016/j.jcsr.2016.03.021
  28. Silvestre, E., Mendiguren, J., Galdos, L. and Argandona, E. (2015), "Comparison of the hardening behaviour of different steel families: from mild and stainless steel to advanced high strength steels", Int. J. Mech. Sci., 101-102, 10-20. https://doi.org/10.1016/j.ijmecsci.2015.07.013
  29. Stephens, M.T., Lehman, D.E. and Roeder, C.W. (2016), "Design of CFST column-to-foundation/cap beam connections for moderate and high seismic regions", Eng. Struct., 122, 323-337. https://doi.org/10.1016/j.engstruct.2016.05.023
  30. Tao, Z., Wang, Z.B. and Yu, Q. (2013), "Finite element modelling of concrete-filled steel stub columns under axial compression", J. Constr. Steel Res., 89, 121-131. https://doi.org/10.1016/j.jcsr.2013.07.001
  31. Thai, H.T. and Uy, B. (2015), "Finite element modelling of blind bolted composite joints", J. Constr. Steel Res., 112, 339-353. https://doi.org/10.1016/j.jcsr.2015.05.011
  32. Uy, B. (2001a), "Axial compressive strength of short steel and composite columns fabricated with high-strength steel plate", Steel Compos. Struct., Int. J., 1(2), 113-134.
  33. Uy, B. (2001b), "Strength of short concrete filled high-strength steel box columns", J. Constr. Steel Res., 57, 113-134. https://doi.org/10.1016/S0143-974X(00)00014-6
  34. Uy, B. (2014), "Innovative connections for the demountability and rehabilitation of steel", Space and Composite Structures, Prague, Czech Republic.
  35. Uy, B., Tao, Z. and Han, L.H. (2011), "Behaviour of short and slender concrete-filled stainless steel tubular columns", J. Constr. Steel Res., 67, 360-378. https://doi.org/10.1016/j.jcsr.2010.10.004
  36. Winters-Downey, E. (2010), "Reclaimed structural steel and LEED Credit MR-3 - Materials Reuse", Modern Steel Construction.
  37. Xiao, Y., Zhang, Z.X., Hu, J.H., Kunnath, S.K. and Guo, P.X. (2011), "Seismic behaviour of CFT column and steel pile footings", J. Bridge Eng., 16(5), 575-586. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000198
  38. Xiong, M.X., Xiong, D.X. and Liew, J.Y.R. (2017), "Flexural performance of concrete filled tubes with high tensile steel and ultra-high strength concrete", J. Constr. Steel Res., 132,191-202. https://doi.org/10.1016/j.jcsr.2017.01.017