DOI QR코드

DOI QR Code

Evaluation of static response in stress-ribbon concrete pedestrian bridges

  • Stavridis, Leonidas T. (Structural Engineering, National Technical University of Athens)
  • 투고 : 2009.01.15
  • 심사 : 2009.10.06
  • 발행 : 2010.01.30

초록

An analytical method is proposed for the evaluation of the static response of a prestresse-dribbon concrete pedestrian bridge, which may also be applied for the roofing of large areas. On the basis of an established analogy with a suspension bridge system, a procedure is presented for the prestresse-dribbon direct analysis, leading to the introduction of two dimensionless parameters as governing factors of the design, namely the thinness and the prestressing steel ratio. The exposed procedure, applied by a simple computer program, allows a quick evaluation of the response and permits the investigation of the influence of the aforementioned parameters on it, by means of comprehensive diagrams. The presented diagrams may be directly used for the preliminary design of a pedestrian bridge of this type, for the whole practical range of span lengths. A design example is also included, showing the applicability of the proposed procedure.

키워드

참고문헌

  1. Arco, D.C., Aparicio, A.C. and Mari, A.R. (2001), "Preliminary design of prestressed concrete stress ribbon bridge", J. Bridge Eng., 6(4), 234-242. https://doi.org/10.1061/(ASCE)1084-0702(2001)6:4(234)
  2. Mehlhorn, G. (2007), "Handbook – Bridges", Springer, Berlin, New York (in German).
  3. Redfield, C. and Strasky, J. (1991), "Sacramento river pedestrian bridge, USA", Struct. Eng. Int., 1(4), 19-21. https://doi.org/10.2749/101686691780617283
  4. Schlaich, J. and Engelsmann, S. (1996), "Stress ribbon concrete bridges", Struct. Eng. Int., 6(4), 271-274. https://doi.org/10.2749/101686696780496247
  5. Stavridis, L.T. (2008), "A simplified analysis of the behavior of suspension bridges under live load", Struct. Eng. Mech., 30(5), 559-576. https://doi.org/10.12989/sem.2008.30.5.559
  6. Timoshenko, S. (1956), Strength of Materials Part II, D. Van Nostrand Company Inc., New York.