Steel and Composite Structures

  • 제10권4호
  • /
  • Pages.361-371
  • /
  • 2010
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effect of FRP composites on buckling capacity of anchored steel tanks

  • Al-Kashif, M.A. (Department of Engineering, Cairo University) ;
  • Ramadan, H. (Department of Engineering, Cairo University) ;
  • Rashed, A. (Steel Structures and Bridges, Structural Engineering Department, Cairo University) ;
  • Haroun, M.A. (Dean of Engineering American University)
  • 투고 : 2009.11.26
  • 심사 : 2010.08.18
  • 발행 : 2010.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Enhancement in the seismic buckling capacity of steel tanks caused by the addition of fiber reinforced polymers (FRP) retrofit layers attached to the outer walls of the steel tank is investigated. Three-dimensional non-linear finite element modeling is utilized to perform such analysis considering non linear material properties and non-linear large deformation large strain analysis. FRP composites which possess high stiffness and high failure strength are used to reduce the steel hoop stress and consequently improve the tank capacity. A number of tanks with varying dimensions and shell thicknesses are examined using FRP composites added in symmetric layers attached to the outer surface of the steel shell. The FRP shows its effectiveness in carrying part of the hoop stresses along with the steel before steel yielding. Following steel yielding, the FRP restrains the outward bulging of the tank and continues to resist higher hoop stresses. The percentage improvement in the ultimate base moment capacity of the tank due to the addition of more FRP layers is shown to be as high as 60% for some tanks. The percentage of increase in the tank moment capacity is shown to be dependent on the ratio of the shell thickness to the tank radius (t/R). Finally a new methodology has been explained to calculate the location of Elephant foot buckling and consequently the best location of FRP application.

키워드

참고문헌

  1. American Petroleum Institute-API 650 (2003), "Welded steel tanks for oil storage", Washington D.C.
  2. American Water Works Association-AWWA (2005), "Welded steel tanks for water storage", AWWA-D100, Denver, Colorado.
  3. Haroun, M.A. (1980), "Dynamic analysis of liquid storage tanks", EarthqUake Engineering Research Laboratory, California Institute of Technology, Pasadena, California.
  4. Haroun, M.A. and Al-Kashif, M.A. (2005), "Methodology for design of earthquake resistant steel liquid storage tanks", Proceeding of the Fifth International Conference on Earthquake Resistant Engineering Structures, ERES, Skiathos, Greece, May.
  5. Haroun, M.A. and Housner, G.W. (1981), "Seismic design of liquid storage tanks", J. Tech. Councils-ASCE, 107, 191-207.
  6. Haroun, M.A. and Housner, G.W. (1982), "Complications in free vibration analysis of tanks", J. Eng. Mech-ASCE, 108, 801-818.
  7. Haroun, M.A. and Tayel, M.A. (1985), "Response of tanks to vertical seismic excitations", J. Earthq. Eng. Struct. Dynam., 13(5), 583-595. https://doi.org/10.1002/eqe.4290130503
  8. Haroun, M.A. and Bhatia, H. (1999), "Enhancement of the seismic buckling capacity of liquid-filled shells", ASME Publication PVP, 394, 185-191.
  9. Housner, G.W. (1963), "The dynamic behaviour of water tanks", Bull. Seismol. Soc. Am., 53(1), 381-387.
  10. Kashif, M.A., Ramadan, H.M, Rashed, A.A. and M.A. Haroun (2009). "Seismic buckling analysis of steel anchored tanks", Twelfth International Civil-Comp Conference, Madrid September, 179-192.
  11. Leon, G.S. and Kausel, E.A.M. (1996), "Seismic analysis of fluid storage tanks", J. Struct. Eng-ASCE, 112(1), 1-18.
  12. Lund, L.V. (1995), "Lifeline utilities lessons, northridge earthquake", Proceedings of the Fourth U.S. Conference on Lifeline Earthquake Engineering-ASCE, New York.
  13. Malhorta, P.K., Wenk, T. and Wieland, M. (2000), "Simple procedure for seismic analysis of liquid-storage tanks", Struct. Eng., 10(3), 197-201. https://doi.org/10.2749/101686600780481509
  14. MARC-Users guide (1996), MARC Analysis Corporation, Palo Alto, California, U.S.A.
  15. NASA Design and Manufacturing Guidelines for Aerospace Composites (2000), Guideline No. GD-ED-2205.
  16. Jaiswal, O.R., Durgesh C.R. and Sudhir K.J. (2007), "Review of seismic codes on liquid-containing tanks", Earthq. Spectra., 32(1), 239-260.
  17. Malhorta, P.K., Wenk, T. and Wieland, M. (2000), "Simple procedure for seismic analysis of liquid-storage tanks", Struct. Eng., 10(3), 197-201. https://doi.org/10.2749/101686600780481509
  18. Xiao, Y. (2004), "Application of FRP composites in concrete columns", Adv. Struct. Eng., 7(4), 335-341. https://doi.org/10.1260/1369433041653552
  19. Xiao, Y. and Choi, K.K. (2005), "Confined concrete-filled tubular columns", J. Struct. Eng-ASCE, 131(3), 488-497. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:3(488)
  20. Teng, J.G. and Hu, Y.M. (2004), "Suppression of local buckling in steel tubes by FRP jacketing", Proceeding of the second International Conference on FRP composites in civil engineering, Adelaide, Australia, December.
  21. Teng, J.G. and Rotter, J.M. (2004), Buckling of thin metal shells, Spon Press, UK, 42-87.

피인용 문헌

  1. Numerical evaluation on shell buckling of empty thin-walled steel tanks under wind load according to current American and European design codes vol.95, 2015, https://doi.org/10.1016/j.tws.2015.07.007
  2. Experimental and Numerical Investigation of Elephant Foot Buckling and Retrofitting of Cylindrical Shells by FRP vol.20, pp.4, 2016, https://doi.org/10.1061/(ASCE)CC.1943-5614.0000640
  3. Strengthening effects of spiral stairway on the buckling behavior of metal tanks under wind and vacuum pressures vol.106, 2016, https://doi.org/10.1016/j.tws.2016.05.023