Structural Engineering and Mechanics

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Numerical investigation on beams prestressed with FRP

  • Pisani, Marco A. (Department of Structural Engineering, Politecnico di Milano)
  • Published : 2000.04.25
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Abstract

This paper aims to make a contribution to understanding which methods apply for structural analysis of beams prestressed with FRP cables. A parametric non-linear numerical analysis of simply supported beams has been performed. In this analysis the shape of the cross-section, the strength of concrete, the material adopted for the cables (steel, GFRP, CFRP), the prestressing system (bonded or unbonded prestressing) and the degree of prestressing were changed to collect a broad range of data which, the author contends, should cover the most frequent types of common practice. The output data themselves and their comparison allow us to suggest some rules that could be adopted when dealing with beams prestressed with these innovatory materials that have an elastic-brittle behaviour.

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References

  1. ACI (1995), "Building code requirements for structural concrete", ACI Standard 318M-95, American ConcreteInstitute, Farmington Hills, Mi, U.S.A.
  2. Agarwal, B.D. and Broutman, L.J. (1994), Analysis and Performance of Fiber Composites, Wiley Interscience.
  3. ASM International Handbook Committee (1987), "Engineered materials handbook - Composites", ASM International,Metals Park, Ohio, U.S.A.
  4. Billet, D.F.; Appleton, J.H. (1954), "Flexural strength of prestressed concrete beams", American ConcreteInstitute Journal, 25(10), 837-854.
  5. Building Research Institute (1995), Guidelines for Structural Design of FRP Reinforced Concrete BuildingStructures, Japanese Ministry of Construction.
  6. Canadian Standards Association (1995), S806-96: Design and Construction of Building Components with FibreReinforced Plastics, Draft 1.
  7. CEB-FIP (1991), "CEB-FIP Model Code 1990", CEB Bulletin d'Information $N^{\circ}$ 203-204-205, Lausanne,Switzerland.
  8. CEB-FIP (1995), "High performance concrete: Recommended extensions to the Model Code 90", CEB Bulletind'Information $N^{\circ}$228, Lausanne, Switzerland.
  9. CEN (1991), "Eurocode n.2: Design of concrete structures - Part 1: General rules and rules for buildings", ENV1992-1-1, European Committee for Stardandization, Commission of the European Communities, Brusselles,Belgium.
  10. CEN (1994), "Eurocode n.2: Design of concrete structures - Part 1-5: General rules - Structures with unbondedand external prestressing tendons", ENV 1992-1-5, European Committee for Stardandization, Commission ofthe European Communities, Brusselles, Belgium.
  11. Chakrabarti, P.R., Whang, T.P., Brown, W., Arsad, K.M. and Amezeua, E. (1994), "Unbonded post-tensioningtendons and partially prestressed beams", American Concrete Institute Structural Journal, 91(5), 616-625.
  12. Cooke, N., Park, R. and Young, P. (1981), "Flexural strength of prestressed concrete members with unbondedtendons", Prestressed Concrete Institute Journal, 26(6), 52-80.
  13. Du, G. and Tao, X. (1985), "Ultimate stress of unbonded tendons in partially prestressed concrete beams",Prestressed Concrete Institute Journal, 30(6), 72-90.
  14. Erki, M.A. and Rizkalla, S.H. (1993), "FRP reinforcement for concrete structures", Concrete International,American Concrete Institute, 15(6), 48-53.
  15. Glaser, R.E., Moore, R.L. and Chiao, T.T. (1983), "Life estimation of an S-glass/epoxy composite under sustained tensile loading", Composite Technology Review, 5.
  16. Harajli, M.H. (1993). "Strengthening of concrete beams by external prestressing", Prestressed Concrete InstituteJournal, 38(6), 76-88.
  17. Jerrett, C.V., Ahmad, S. and Scotti, G. (1996), "Behaviour of prestressed concrete beams strengthened byexternal FRP post-tensioned tendons", Proceedings of the ACMBS Conference 1996 (Advanced CompositeMaterials in Bridges and Structures), Ed., Mamdouh El Badry, Montreal, Quebec, Canada.
  18. Kaci, S. (1995), "Experimental study of mechanical behaviour of composite cables for prestress", ASCE Journalof Engineering Mechanics, 121(6), 709-716. https://doi.org/10.1061/(ASCE)0733-9399(1995)121:6(709)
  19. Machida, A. Editor (1993), "State-of-the-art report on continuous fiber reinforcing materials", Japan Society ofCivil Engineering, Tokyo, Japan.
  20. Malvar, L.J. (1994), "Unidirectional, core-shell hybrids for concrete reinforcement - A preliminary study", NavalFacilities Engineering Service Center, Port Hueneme (CA, USA), TR-2011-SHR.
  21. Mattok, A.H., Yamazaki, J. and Kattula, B.T. (1971), "Comparative study of prestressed concrete beams with andwithout bond", American Concrete Institute Journal, 68, 116-125.
  22. Naaman, A.E. (1990), "A new methodology fot the analysis of beams prestressed with external or unbondedtendons", American Concrete Institute SP-120, 339-354.
  23. Nanni, A. Editor (1993), Fiber-Reinforced-Plastic (FRP) Reinforcement for Concrete Structures: Properties andApplications, Elsevier.
  24. Niitani, K., Tezuka, M. and Tamura, T. (1997), "Flexural behaviour of prestressed concrete beams using AFRPpre-tensioning tendons", Proceedings of the Third International Symposium on Non-Metallic (FRP)Reinforcement for Concrete Structures (FRPRCS-3),Sapporo, Japan, 2, 663-670.
  25. Pisani, M.A. (1996), "A numerical model for externally prestressed beams", Structural Engineering andMechanics, 4(2), 177-190. https://doi.org/10.12989/sem.1996.4.2.177
  26. Pisani, M.A. and Nicoli, E. (1996), "Beams prestressed with unbonded tendons at ultimate", Canadian Journalof Civil Engineering, 23(6), 1220-1230. https://doi.org/10.1139/l96-931
  27. Pisani, M.A. (1998), "Pre-stressing and Eurocode E.C.2", Engineering Structures, Elsevier, 20(8), 706-711. https://doi.org/10.1016/S0141-0296(97)00101-6
  28. Sen, R., Issa, M., Sun, Z. and Shahawy, M. (1994), "Static response of fiberglass pretensioned beams", ASCEJournal of Structural Engineering, 120(1), 252-268. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:1(252)
  29. Taerwe, L., Lambotte, H. and Miesseler, H.J. (1992), "Loading tests of concrete beams prestressed with glassfibre tendons", Prestressed Concrete Institute Journal, 37(4), 84-97.
  30. Taerwe, L. and Mattys, S. (1997), "Comparison of concrete slabs pretensioned with composite bars and steelwires", Magnel Laboratory of Concrete Research, Ghent University, Ghent, Belgium.
  31. Virlogeaux, M. (1983), "La précontrainte extérieure", Annales de l'Istitut Technique du Batiment et des TravauxPublics, Serie: Beton 219, $N^{\circ}$420, 115-191.
  32. Yonekura, A., Tazawa, E. and Zhou, P. (1997), "Flexural characteristics of prestressed concrete beams using FRPpipes or FRP rods", Proceedings of the Third International Symposium on Non-Metallic (FRP) Reinforcementfor Concrete Structures (FRPRCS-3), Sapporo, Japan, 2, 751-758.

Cited by

  1. Closure to “Strengthening by Means of External Prestressing” by M. A. Pisani vol.6, pp.2, 2001, https://doi.org/10.1061/(ASCE)1084-0702(2001)6:2(155.2)
  2. Strengthening by Means of External Prestressing vol.6, pp.2, 2001, https://doi.org/10.1061/(ASCE)1084-0702(2001)6:2(155)