Wind and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Experimental analysis of aerodynamic stability of stress-ribbon footbridges

  • Pirner, Miros (Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic) ;
  • Fischer, Ondrej (Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic)
  • Published : 1999.06.25
⟨ Previous Next ⟩

Abstract

The dynamic properties of one-span or multi-span reinforced concrete footbridges of catenary form (see e.g., Fig. 1) include the very low fundamental natural frequency, usually near the step-frequency of pedestrians, and the low damping of bending vibrations. The paper summarized the results of model as well as full-scale measurements with particular reference to the influence of torsional rigidity of the stress-ribbon on the magnitude of aerodynamic response, the results of measurements on footbridges of catenary form being completed by results obtained on footbridges of some other types. Additionally the influence of the local broadening of the bridge deck on the bridge response was tested. Starting from these results the criterion has been derived for the decision, whether the flutter analysis is necessary for the design of the footbridge.

Keywords

References

  1. Kloppel, K., Thiele, F. (1962), "Modelversuche im Windkanal zur Bemessung von Brucken gegen Gefahr Wind-erregter Schwingungen", Der Stahlbau, Jg. 36, H. 12.
  2. Pimer, M. (1994), "Aeroelastic characteristics of a stressed pedestrian bridge spanning 252 m", Journal of Wind Engineering and Industrial Aerodynamics, 53, 301-314. https://doi.org/10.1016/0167-6105(94)90088-4
  3. Pirner, M., Fischer, O. (1997), "Wind induced vibrations of concrete stress-ribbon footbridges" , Proc. 2nd European and African Conf. on Wind Engineering, Genova, June, 1537-1544.
  4. Simiu, E., Scanlan, R.H. (1996). Wind Effects on Structures, John Wiley and Sons, Inc., N. York.
  5. Stamm, C. (1952). Bruckeneinsturze und ihre Lehren, Leemann, Zurich.
  6. Strasky, J., Pimer, M. (1986). Stress-Ribbon Footbridges (in Czech). Special issue of the estabilishment "Dopravni stavby (Constructions for Transport)" , Olomouc.

Cited by

  1. Load deformation characteristics of shallow suspension footbridge with reverse profiled pre-tensioned cables vol.21, pp.4, 2005, https://doi.org/10.12989/sem.2005.21.4.375
  2. Vibration characteristics of shallow suspension bridge with pre-tensioned cables vol.27, pp.8, 2005, https://doi.org/10.1016/j.engstruct.2005.03.005