Statistical calibration of safety factors for flexural stiffness of composite columns

DOI QR코드

DOI QR Code

Aslani, Farhad;Lloyd, Ryan;Uy, Brian;Kang, Won-Hee;Hicks, Stephen

  • 투고 : 2015.06.26
  • 심사 : 2015.09.09
  • 발행 : 2016.01.20

초록

Composite column design is strongly influenced by the computation of the critical buckling load, which is very sensitive to the effective flexural stiffness (EI) of the column. Because of this, the behaviour of a composite column under lateral loading and its response to deflection is largely determined by the EI of the member. Thus, prediction models used for composite member design should accurately mirror this behaviour. However, EI varies due to several design parameters, and the implementation of high-strength materials, which are not considered by the current composite design codes of practice. The reliability of the design methods from six codes of practice (i.e., AS 5100, AS/NZS 2327, Eurocode 4, AISC 2010, ACI 318, and AIJ) for composite columns is studied in this paper. Also, the reliability of these codes of practice against a serviceability limit state criterion are estimated based on the combined use of the test-based statistical procedure proposed by Johnson and Huang (1997) and Monte Carlo simulations. The composite columns database includes 100 tests of circular concrete-filled tubes, rectangular concrete-filled tubes, and concrete-encased steel composite columns. A summary of the reliability analysis procedure and the evaluated reliability indices are provided. The reasons for the reliability analysis results are discussed to provide useful insight and supporting information for a possible revision of available codes of practice.

키워드

composite columns;flexural stiffness;reliability analysis

참고문헌

  1. American Concrete Institute (ACI) (1999), Building code requirements for structural concrete (ACI 318-99) and commentary (318R-99), ACI 318-99; Farmington Hills, MI, USA.
  2. American Concrete Institute (ACI) (2002), Building code requirements for structural concrete (ACI 318-02) and commentary (318R-02), ACI 318-02; Farmington Hills, MI, USA.
  3. American Concrete Institute (ACI) (2010), Building code requirements for structural concrete and commentary, ACI 318-10; Farmington Hills, MI, USA.
  4. American Institute of Steel Construction (AISC) (1993), Load and resistance factor design specification for structural steel buildings, Chicago, IL, USA.
  5. American Institute of Steel Construction (AISC) (1999), Load and resistance factor design specifications for structural steel buildings, Chicago, IL, USA.
  6. American Institute of Steel Construction (ANSI/AISC 360-10) (2010), Specification for Structural Steel Buildings, An American National Standard.
  7. Architectural Institute of Japan (AIJ) (1987), Structural calculations of steel reinforced concrete structures, Tokyo, Japan.
  8. Architectural Institute of Japan (AIJ) (1997), "Recommendations for design and construction of concrete filled steel tubular structures", Japan. [In Japanese]
  9. Aslani, F. (2013). "Effects of specimen size and shape on compressive and tensile strengths of self-compacting concrete with or without fibers", Magaz. Concrete Res., 65(15), 914-929. https://doi.org/10.1680/macr.13.00016
  10. Aslani, F., Uy, B., Tao, Z. and Mashiri, F. (2015a), "Behaviour and design of composite columns incorporating compact high-strength steel plates", J. Construct. Steel Res., 107, 94-110. https://doi.org/10.1016/j.jcsr.2015.01.005
  11. Aslani, F., Uy, B., Tao, Z., Mashiri, F. (2015b). "Predicting the axial load capacity of high-strength concrete filled steel tubular columns", Steel Compos. Struct., Int. J., 19(4), 967-993. https://doi.org/10.12989/scs.2015.19.4.967
  12. Bridge, R.Q. (2011), "Design of Composite Columns - Steel, Concrete, or Composite Approach?", Proceedings of the 6th International Conference on Composite Construction in Steel and Concrete, Tabernash, CO, USA, July.
  13. British Standard Institute (1979), BS5400, Part 5; Concrete and composite bridges.
  14. Chitawadagi, M.V. and Narasimhan, M.C. (2009), "Strength deformation behaviour of circular concrete filled steel tubes subjected to pure bending", J. Construct. Steel Res., 65(8-9), 1836-1845. https://doi.org/10.1016/j.jcsr.2009.04.006
  15. Denavit, M.D., Hajjar, J.F. and Leon, R.T. (2012), "Stability analysis and design of steel-concrete composite columns", Proceedings of the Annual Stability Conference, Structural Stability Research Council, Grapevine, TX, USA, April.
  16. Elchalakani, M., Zhao, X.-L. and Grzebieta, R.H. (2001), "Concrete-filled circular steel tubes subjected to pure bending", J. Construct. Steel Res., 57(11), 1141-1168. https://doi.org/10.1016/S0143-974X(01)00035-9
  17. Elghazouli, A.Y. and Treadway, J. (2008), "Inelastic behaviour of composite members under combined bending and axial loading", J. Construct. Steel Res., 64(9), 1008-1019. https://doi.org/10.1016/j.jcsr.2007.12.016
  18. Ellobody, G. and Young, B. (2010), "Numerical simulation of concrete encased steel composite columns", J. Construct. Steel Res., 67(2), 211-222.
  19. Eurocode 4 (1994), European Committee for Standardization (CEN), Design of composite steel and concrete structures, Brussels, Belgium.
  20. Eurocode 4 (2004), Design of composite steel and concrete structures, Part 1.1, General and rules for Building, BS EN 1994-1-1; British Standards Institution, London, UK.
  21. Gho, W.-M. and Liu, D. (2004), "Flexural behaviour of high strength rectangular concrete filled steel hollow sections", J. Construct. Steel Res., 60(11), 1681-1696. https://doi.org/10.1016/j.jcsr.2004.03.007
  22. Gulvanesian, H. and Holicky, M. (2005), "Annex C - Calibration procedure", Leonardo DaVinci Pilot Project CZ/02/B/F/PP-134007; Handbook 2-Reliability Backgrounds.
  23. Han, L.-H. (2003), "Flexural behaviour of concrete-filled steel tubes", J. Construct. Steel Res., 60(2), 313-337.
  24. Han, L.-H., Lu, H., Yao, G.-H. and Liao, F.-Y. (2005), "Further study of the flexural behaviour of concrete-filled steel tubes", J. Construct. Steel Res., 62(6), 554-565.
  25. Hernandez-Figueirido, D., Romero, M.L., Bonet, J.L. and Montalva, J.M. (2012), "Influence of slenderness on high-strength rectangular concrete-filled tubular columns with axial load and nonconstant bending moment", J. Structuct. Eng., ASCE, 138(12), 1436-1445. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000590
  26. International Organization for Standardization (1998), ISO 2394: 1998 General principals on reliability for structures, Geneva, Switzerland.
  27. Johnson, R.P. and Huang, D. (1994), "Calibration of safety factors for composite steel and concrete beams in bending", Proc. ICE Struct Build, 104(2), 193-203. https://doi.org/10.1680/istbu.1994.26328
  28. Johnson, R.P. and Huang D. (1997), "Statistical calibration of safety factors for encased composite columns", Composite Construction in Steel and Concrete III, ASCE, New York, NY, USA, pp. 380-391.
  29. Kang, W.H., Uy, B., Tao, Z. and Hicks, S. (2015), "Design strength of concrete-filled steel columns", Adv. Steel Construct., 11(2), 165-184.
  30. Lundberg, J.E. and Galambos, T.V. (1996), "Load and resistance factor design of composite columns", Struct. Safe., 18(2-3), 169-177. https://doi.org/10.1016/0167-4730(96)00009-4
  31. Mirza, S.A. and Lacroix, E.A. (2004), "Comparative strength analyses of concrete-encased steel composite columns", J. Struct. Eng., ASCE, 130(12), 1941-1953. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:12(1941)
  32. Mirza, S.A. and Skrabek, B.W. (1991), "Reliability of short composite beam-column strength interaction", J. Struct. Eng., ASCE, 117(8), 2320-2339. https://doi.org/10.1061/(ASCE)0733-9445(1991)117:8(2320)
  33. O'Shea, M.D. and Bridge, R.Q. (2000), "Design of circular thin-walled concrete filled steel tubes", J. Struct. Eng., ASCE, 126(11), 1295-1303. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:11(1295)
  34. Prion, H.G.L. and Boehme, J. (1994), "Beam column behaviour of steel tubes filled with high strength concrete", Can. J. Civil Eng., 21(2), 207-218. https://doi.org/10.1139/l94-024
  35. Ricles, J.M. and Paboojian, S.D. (1994), "Seismic performance of steel-encased composite columns", J. Struct. Eng., ASCE, 120(8), 2474-2494. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:8(2474)
  36. Roeder, C.W., Lehman, D.E. and Bishop, E. (2010), "Strength and stiffness of circular concrete-filled tubes", J. Struct. Eng., ASCE, 541(12) 1545-1553.
  37. Standards Australia (2004), AS 5100.6-2004 Bridge Design, Part 6: Steel and composite construction, Sydney, Australia.
  38. Standards Association of Australia (Draft 2015), AS/NZS 2327-2015, "Composite Structures", Sydney, Australia. [In preparation]
  39. Standards Australia International Ltd. (2005), AS 5104: 2005, "General principles on reliability for structures", New South Wales, Australia.
  40. Tao, Z., Uy, B., Han, L.H. and He, S.H. (2008), "Design of concrete-filled steel tubular members according to the Australian Standard AS 5100 model and calibration", Aust. J. Struct. Eng., 8(3), 197-214. https://doi.org/10.1080/13287982.2008.11464998
  41. Tikka, T.K. and Mirza, S.A. (2006a), "Nonlinear equation for flexural stiffness of slender composite columns in major axis bending", J. Struct. Eng., ASCE, 132(3), 387-399. https://doi.org/10.1061/(ASCE)0733-9445(2006)132:3(387)
  42. Tikka, T.K. and Mirza, S.A. (2006b), "Nonlinear EI equation for slender composite columns bending about the minor axis", J. Struct. Eng., ASCE, 132(10), 1590-1602. https://doi.org/10.1061/(ASCE)0733-9445(2006)132:10(1590)
  43. Tokgoz, S. and Dundar, C. (2008), "Experimental tests on biaxially loaded concrete-encased composite columns", Steel Compos. Struct., Int. J., 8(5), 423-438. https://doi.org/10.12989/scs.2008.8.5.423
  44. Varma, A.H., Ricles, J.M., Sause, R. and Lu, L.-W. (2002), "Experimental behaviour of high strength square concrete-filled steel tube beam-columns", J. Struct. Eng., ASCE, 128(3), 309-318. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:3(309)
  45. Virdi, K.S. and Dowling, P.J. (1973), "The ultimate strength of composite columns in biaxial bending", Proceedings of the Institution of Civil Engineers, March, Part 2, pp. 251-272.
  46. Wheeler, A.T. and Bridge, R.Q. (2000), "Thin-walled steel tubes filled with high strength concrete in bending", Proceedings of Composite Construction in Steel and Concrete IV, Banff, AL, Canada, May-June, pp. 584-595.
  47. Wheeler, A. and Bridge, R.Q. (2006), "The behaviour of circular concrete-filled thin-walled steel tubes in flexure", Proceedings of the 5th International Conference on Composite Construction in Steel and Concrete, Kruger National Park, Berg-en-Dal, Mpumalanga, South Africa, July, pp. 412-423.
  48. Yi, S.-T., Yang, E.-I. and Choi, J.-Ch. (2006), "Effect of specimen sizes, specimen shapes, and placement directions on compressive strength of concrete", Nucl. Eng. Des., 236(2), 115-127. https://doi.org/10.1016/j.nucengdes.2005.08.004
  49. Zeghiche, J. and Chaoui, K. (2005), "An experimental behaviour of concrete-filled steel tubular columns", J. Constr. Steel Res., 61(1), 53-66. https://doi.org/10.1016/j.jcsr.2004.06.006