Structural Engineering and Mechanics

  • 제63권3호
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  • Pages.385-400
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  • 2017
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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Experimental study on partially-reinforced steel RHS compression members

  • Pinarbasi, Seval (Department of Civil Engineering, Kocaeli University, Umuttepe Campus)
  • 투고 : 2016.08.30
  • 심사 : 2017.03.09
  • 발행 : 2017.08.10
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents an experimental study on the behavior of axially-loaded steel RHS (rectangular hollow section) compression members that are partially reinforced along their lengths with welded steel plates. 28 slender column tests were carried out to investigate the effects of the slenderness ratio of the unreinforced member and the ratio of the reinforced length of the member to its entire length. In addition to the slender column tests, 14 stub-column tests were conducted to determine the basic mechanical properties of the test specimens under uniform compression. Test results show that both the compressive strength and stiffness of an RHS member can be increased significantly compared to its unreinforced counterpart even when only the central quarter of the member is reinforced. Based on the limited test data, it can be concluded that partial reinforcement is, in general, more effective in members with larger slenderness ratios. A simple design expression is also proposed to predict the compressive strength of RHS columns partially reinforced along their length with welded steel plates by modifying the provisions of AISC 360-10 to account for the partial reinforcement.

키워드

과제정보

연구 과제 주관 기관 : Kocaeli University

참고문헌

  1. AISC360-10 (2010), Specification for Structural Steel Buildings, American Institute of Steel Construction; Chicago, Illinois.
  2. Bhowmick, A.K. and Grondin, G.Y. (2016), "Limit state design of steel columns reinforced with welded steel plates", Eng. Struct., 114, 48-60. https://doi.org/10.1016/j.engstruct.2016.01.032
  3. Brown, JH. (1988), "Reinforcing loaded steel compression members", Eng. J. AISC, Fourth Quarter, 161-168.
  4. Cuhadaroglu Pinarbasi, S., Akpinar, E., Okay, F., Meydanli Atalay, H. and Ozden, S. (2012), "Analytical, numerical and experimental studies on stability of three-segment compression members with pinned ends", Advances in Computational Stability Analysis, Ed. Coskun S B, Intech, 91-114.
  5. Fan, H.G., Chen Z.P., Feng W.Z., Zhou, F., Shen, X.L. and Cao, G.W. (2015), "Buckling of axial compressed cylindrical shells with stepwise variable thickness", Struct. Eng. Mech., 54(1), 87-103. https://doi.org/10.12989/sem.2015.54.1.087
  6. Galambos, T.V. (1998), Guide to Stability Design Criteria for Metal Structures, 5th Edition, John Wiley and Sons, New York, USA.
  7. Kus, J. (2015), "Lateral-torsional buckling steel beams with simultaneously tapered flanges and web", Steel Compos. Struct., 19(4), 897-916. https://doi.org/10.12989/scs.2015.19.4.897
  8. Liu, S.W., Bai, R. and Chan, S.L. (2016), "Second-order analysis of non-prismatic steel members by tapered beam-column elements", Struct., 6, 108-118. https://doi.org/10.1016/j.istruc.2016.02.006
  9. Marques, L., Da Silva, L.S. and Rebelo, C. (2014), "Rayleigh-Ritz procedure for determination of the critical load of tapered columns", Steel Compos. Struct., 16(1), 45-58. https://doi.org/10.12989/scs.2014.16.1.045
  10. Nagaraja Rao, R.N. and Tall, L. (1962), "Columns reinforced under load", Fritz Laboratory Report No. 286.1; Lehigh University Institute of Research, Lehigh University.
  11. Park, J.S. (2004), "Lateral buckling formula of stepped beams with length-to-height ratio factor", Struct. Eng. Mech., 18(6), 745-757. https://doi.org/10.12989/sem.2004.18.6.745
  12. Park, J.S. and Park, Y.S. (2013), "Inelastic lateral-torsional buckling strengths of stepped I-beams subjected to general loading condition", Struct. Eng. Mech., 48(2), 275-289. https://doi.org/10.12989/sem.2013.48.2.275
  13. Pinarbasi, S., Okay, F., Akpinar, E. and Erdogan, H. (2013), "Stability analysis of two-segment stepped columns with different end conditions and internal axial loads", Math. Probl. Eng., 2013, Article ID 858906.
  14. Rajasekaran, S. and Wilson, A.J. (2013), "Buckling and vibration of rectangular plates of variable thickness with different end conditions by finite difference technique", Struct. Eng. Mech., 46(2), 269-294. https://doi.org/10.12989/sem.2013.46.2.269
  15. Ren, Q.X., Han, L.H., Hou, C. and Hua, Y.X. (2017), "Experimental behavior of tapered CFST columns under combined compression and bending", J. Constr. Steel Res., 128, 39-52. https://doi.org/10.1016/j.jcsr.2016.08.005
  16. Saka, M.P. (1997), "Optimum design of steel frames with tapered members", Comput. Struct., 63(4), 797-811. https://doi.org/10.1016/S0045-7949(96)00074-0
  17. Shaat, A. and Fam, A.Z. (2009), "Slender steel columns strengthened using high modulus CFRP plates for buckling control", J. Compos. Constr., ASCE, 13(1), 2-12. https://doi.org/10.1061/(ASCE)1090-0268(2009)13:1(2)
  18. Singh, K.V. and Li, G. (2009), "Buckling of functionally graded and elastically restrained non-uniform columns", Compos. Part B-Eng., 40, 393-403. https://doi.org/10.1016/j.compositesb.2009.03.001
  19. Surla, A.S., Kang, S.Y. and Park, J.S. (2015), "Inelastic buckling assessment of monosymmetric I-beams having stepped and noncompact flange sections", J. Constr. Steel Res, 114(325-337), 146-148. https://doi.org/10.1016/j.jcsr.2015.04.015
  20. Tall, L. (1989), "The reinforcement of steel columns", Eng. J. AISC, First Quarter, 33-37.
  21. Tide, R.H.R. (1990), "Reinforcing steel members and the effects of welding", Eng. J. AISC, Fourth Quarter, 129-131.
  22. Timoshenko, S.P. and Gere, J.M. (1961), Theory of Elastic Stability, 2nd edition, McGraw-Hill, New York, USA.
  23. Wu, Z. and Grondin, G.Y. (2002), "Behaviour of steel columns reinforced with welded steel plates", Structural Engineering Report 250; Department of Civil and Enviromental Engineering, University of Alberta.
  24. Zhang, X., Zhang, H. and Wen, Z. (2015), "Axial crushing of tapered circular tubes with graded thickness", Int. J. Mech. Sci., 92, 12-23. https://doi.org/10.1016/j.ijmecsci.2014.11.022