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Time dependent service load behaviour of prestressed composite tee beams

  • Uy, Brian (Department of Civil and Mining Engineering, University of Wollongong)
  • 발행 : 1997.05.25

초록

This paper is concerned with the time dependent service load behaviour of prestressed composite tee beams. The effects of creep and shrinkage of the concrete slab are modelled using the age adjusted effective modulus method and a relaxation approach. The tendon strain is determined considering compatibility of deformations and equilibrium of forces between the tendon and the composite tee beam. A parametric study is undertaken to study the influence of various aspects on the stress, strain and deformations of the concrete slab, steel beam and prestressing tendon. The effect of loading type and tendon relaxation has also been considered for various types of prestressing tendon materials. Recommendations are then made in relation to adequate span to depth ratios for varying levels of prestressing force.

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참고문헌

  1. Albrecht, P.,Li, W. and Saadatmanesh, H. (1995), "Fatigue strength of prestressed composite steel-concrete beams", Journal of Structural Engineering, ASCE, 121, 1850-1856. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:12(1850)
  2. Bradford, M.A. (1991), "Deflections of composite steel-concrete beams subjected to creep and shrinkage", ACI Structural Journal, 88(5), 610-614.
  3. Bradford, M.A. (1994), "Buckling of post-tensioned composite beams", Structural Engineering and Mechanics, 2(1), 113-123. https://doi.org/10.12989/sem.1994.2.1.113
  4. Bradford, M.A. and Gilbert, R.I. (1989), "Non-linear behaviour of composite beams at service loads", The Structural Engineer, 67(14), 263-267.
  5. Bradford, M.A. and Gilbert, R.I. (1991a), "Time dependent behaviour of simply-supported steel-concrete composite beams", Magazine of Concrete Research, 43(157), 265-274. https://doi.org/10.1680/macr.1991.43.157.265
  6. Bradford, M.A. and Gilbert, R.I. (1991b), "Experiments on composite beams at service loads", Civil Engineering Transactions, Institutioin of Engineers Australia, 33(4), 285-291.
  7. Dezi, L., Ianni, C., and Tarantino, A.M. (1993), "Simplified creep analysis of composite beams with flexible connectors", Journal of Structural Engineering, ASCE, 119(5), 1484-1497. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:5(1484)
  8. Gilbert, R.I. (1988), "Time effects in concrete structures", Elsevier, Amsterdam.
  9. Gilbert, R.I. (1989), "Time-dependent analysis of composite steel-concrete sections", Journal of Structural Engineering, ASCE, 115(11), 2687-2705. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:11(2687)
  10. Gilbert, R.I. and Gowripalan, N. (1994), "Time dependent behaviour of prestressed beams using nonmetallic tendons", Proceedings of the Australasian Structural Engineering Conference, Sydney, 571-576.
  11. Hoadley, P.G. (1963), "Behaviour of prestressed composite steel beams", Journal of the Structural Division, ASCE, 89(1), 21-34.
  12. Johnson, R.P. (1995), Composite Structures of Steel and Concrete. Vol. 1 Beams, Slabs, Columns and Frames for Buildings. 2nd Edition, Blackwell Scientific.
  13. Lawther, R. and Gilbert, R.I. (1990), "A rate of creep analysis of composite steel-concrete cross-sections", The Structural Engineer, 68(11), 208-213.
  14. Lawther, R. and Gilbert, R.I. (1992), "Deflection analysis of composite structures using the rate of creep method", The Structural Engineer, 70(12), 220-223.
  15. Li, W., Albrecht, P. and Saadatmanesh, H. (1995), "Strengthening of composite steel-concrete bridges", Journal of Structural Engineering, ASCE, 121, 1842-1849. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:12(1842)
  16. Nakai, H., Kurita, A., Tomita, K. and Seno, Y. (1995), "Analysis for creep and shrinkage of steel-concrete composite girder bridges with external prestressing cables", Proceedings of the Fifth East Asian Structural Engineering and Construction Conference, Building for the 21st Century, 273-278.
  17. Reagan, R.S. and Krahl, N.W. (1967), "Behavior of prestressed composite beams", Journal of the Structural Division, ASCE, 93(6), 87-108.
  18. Saadatmanesh, H., Albrecht, P. and Ayyub, B.M. (1989a), "Experimental study of prestressed composite beams", Journal of Structural Engineering, ASCE, 115, 2348-2363. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:9(2348)
  19. Saadatmanesh, H.,Albrecht, P. and Ayyub, B.M. (1989b), "Analytical study of prestressed composite beams", Journal of Structural Engineering, ASCE, 115, 2364-2381. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:9(2364)
  20. Saadatmanesh, H., Albrecht, P. and Ayyub, B.M. (1992a), "Prestressed composite girders. I: Experimental study for negative moment", Journal of Structural Engineering, ASCE, 115, 2743-2762.
  21. Saadatmanesh, H., Albrecht, P. and Ayyub, B.M. (1992b), "Prestressed composite girders. I: Analytical study for negative moment", Journal of Structural Engineering, ASCE, 115, 2763-2783.
  22. Standard Association of Australia (1994), AS3600 Concrete Structures, Standard Association of Australia, Sydney, Australia.
  23. Szilard, R. (1959), "Design of prestressed composite steel structures", Journal of the Structural Division, ASCE, 85, 97-123.
  24. Troitsky, M.S., Zielinski, Z.A. and Nouraeyan, A. (1989), "Pre-tensioned and post-tensioned composite girders", Journal of Structural Engineering, ASCE, 115, 3142-3153. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:12(3142)
  25. Uy, B. and Bradford, M.A. (1993), "Cross-sectional deformation of prestressed composite tee-beams", Structural Engineering Review, 5(1), 63-70.
  26. Wright, H.D., Vitek, J.L. and Rakib, S.N. (1992), "Long-term creep and shrinkage in composite beams with partial connection", Structures and Buildings, Proceedings of the Institution of Civil Engineers, 94, 187-195. https://doi.org/10.1680/istbu.1992.18787

피인용 문헌

  1. Static Flexural Behaviour of Externally Post-Tensioned Steel-Concrete Composite Beams vol.7, pp.1, 2004, https://doi.org/10.1260/136943304322985729