Structural Engineering and Mechanics

  • 제4권2호
  • /
  • Pages.177-190
  • /
  • 1996
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A numerical model for externally prestressed beams

  • Pisani, M.A. (Department of Structural Engineering, Politecnico di Milano)
  • 발행 : 1996.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

A method to numerically evaluate the behaviour of single span beams, prestressed with external tendons and symmetrically loaded is presented. This algorithm, based on the Finite Difference Method, includes second order effects and large displacements in an attempt to more fully understand the behaviour of the beam up to collapse. The numerical technique discussed is particularly appropriate for the analysis of R.C. and P.C. beams rehabilitated or strengthened by means of external prestressing but it is reliable for the analysis of new beams as well.

키워드

참고문헌

  1. Amerio, L. (1974), Analisi matematica, Tamburini Editore, Milan.
  2. Collaz, L. (1966), The numerical treatment of differential equations, Springer-Verlag, Berling.
  3. Corradi, L. (1992), Meccanica delle strutture, Mc Graw-Hill, Milan.
  4. Cugiani, M. (1977), Metodi dellanalisi numerica, UTET, Turin.
  5. CEN (1994), "Eurocode 2: Design of concrete structures-Part 1-5: General rules-Structures with unbonded and external prestressing tendons." ENV 1992-1-5.
  6. Gongchen Du and Xuekang Tao (1985), "Ultimate stress of unbonded tendons in partially prestressed concrete beams", PCI Journal, Nov-Dec, 72-90.
  7. Klaiber, F.W. and Dunker, K.E. (1990), "Strengthening of existing bridges (simple and continuous span) by post-tensioning", ACI SP120. 207-227.
  8. Mattock, A.H., Yamazaki, J. and Kattula, B.T. (1971), "Comparative study of prestressed concrete beams, with and without bond", ACI Journal, Feb., 116-125.
  9. Mirabella Roberti, G. (1986), "Analisi sperimentale e teorica del comportamento di elementi strutturali a sezione mista acciaio-calcestruzzo soggetti a carichi ciclici, PhD Thesis, Politecnico di Milano, Milan.
  10. Mola, F. and Pisani, M.A. (1993), "Creep analysis of P.C. bridge beams repaired with external tendons", Studi e Ricerche, Scuola di Specializzazione C.A., Politecnico di Milano, 14. Milan. 199-218.
  11. Naaman, A.E. (1990), "A new methodology for the analysis of beams prestressed with external or unbonded tendons", ACI SP120, 339-354.
  12. Naaman, A.E. and Alkhairi, F.M. (1991), "Stress at ultimate in unbonded post-tensioning tendons: part 1-evaluation of the state-of-the-art", ACI Structural Journal, 88(5), Sept.-Oct., 641-651.
  13. Naaman, A.E. and Alkhairi, F.M. (1991), "Stress at ultimate in unbonded post-tensioning tendons: part 2-proposed methodology", ACI Structural Journal, 88(6), Nov.-Dec., 683-692.
  14. Osborne, A.E.N. and Preston, H.K. (1990), "Post-tensioned repair and field testing of a prestressed concrete box beam bridge", ACI SP120, 229-256.
  15. Priestley, M.J.N. (1989), "Research into the repair and retrofit of concrete bridges in USA.", LIndustria Italiana del Cemento, 6(89), Allegato a,5-15.
  16. Rotter, J.M. (1985), "Rapid exact inelastic biaxial bending analysis", Journal of ASCE Structural Division, 111(12), 2659-2674. https://doi.org/10.1061/(ASCE)0733-9445(1985)111:12(2659)
  17. Timoshenko, S.P. and Gere, J.M. (1985), Theory of elastic stability, McGraw-Hill, New York.
  18. Virlogeux, M. (1983), "La precontrainte exterieure", Annales de lIstitut technique du Batiment et des Travaux Puliques, $N^{/circ}$ 420, serie: beton 219, December, 115-191.

피인용 문헌

  1. Theoretical and experimental study on flexural behavior of prestressed steel plate girders vol.142, 2018, https://doi.org/10.1016/j.jcsr.2017.12.007
  2. Strengthening by Means of External Prestressing vol.4, pp.2, 1999, https://doi.org/10.1061/(ASCE)1084-0702(1999)4:2(131)
  3. Numerical Analysis of Continuous Beams Prestressed with External Tendons vol.14, pp.2, 2009, https://doi.org/10.1061/(ASCE)1084-0702(2009)14:2(93)
  4. Numerical investigation on beams prestressed with FRP vol.9, pp.4, 2000, https://doi.org/10.12989/sem.2000.9.4.349
  5. Beams prestressed with unbonded tendons at ultimate vol.23, pp.6, 1996, https://doi.org/10.1139/l96-931
  6. Geometrical Nonlinearity and Length of External Tendons vol.10, pp.3, 2005, https://doi.org/10.1061/(ASCE)1084-0702(2005)10:3(302)
  7. Stress at Ultimate in Unbonded Post Tensioning Tendons for Simply Supported Beams: A State-of-the-Art Review vol.9, pp.3, 2006, https://doi.org/10.1260/136943306777641922
  8. Long-term behaviour of beams prestressed with aramid fibre cables vol.22, pp.12, 2000, https://doi.org/10.1016/S0141-0296(99)00107-8
  9. Behaviour of continuous prestressed concrete beams with external tendons vol.55, pp.6, 2015, https://doi.org/10.12989/sem.2015.55.6.1099
  10. A numerical survey on the behaviour of beams pre-stressed with FRP cables vol.12, pp.4, 1998, https://doi.org/10.1016/S0950-0618(97)00081-0
  11. Vibration analysis of prestressed concrete bridge subjected to moving vehicles vol.4, pp.4, 1996, https://doi.org/10.12989/imm.2011.4.4.273
  12. Numerical and Analytical Behavior of Beams Prestressed with Unbonded Internal or External Steel Tendons: A State-of-the-Art Review vol.44, pp.10, 1996, https://doi.org/10.1007/s13369-019-03934-3