RECENT AERODYNAMIC STUDIES OF LONG-SPAN BRIDGES

Wind forces have taken on increased significance and can be a major problem in the design of cable-supported bridge systems. The determination of the response of long-span bridge structures due to wind action is obtained by field observations and wind tunnel testing of models, or both. Current cable-stay bridge designs are subject to the same fundamental wind excitation as the classical suspension bridge; however, the inherent increase in stiffness of the cable-stay box-girder does place it in a different realm of response. Preliminary data are presented relating angle of attack and wind velocity obtained at the Newport, R.I., Suspension Bridge over Naragansett Bay during Hurricane Doria; field obssrvations of the vortex excitation of the pylons of the Sitka Harbor Cable-Stayed Bridge; and wind tunnel tests of the Luling, La., Cable-Stayed Bridge. Results of the wind tunnel tests of the Pasco-Kennewick concrete Cable-Stayed Bridge are also presented. /Author/

  • Supplemental Notes:
    • Presented at the ASCE National Structural Engineering Convention and Exposition, New Orleans, October 14-18, 1975.
  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Gade, R H
    • Bosch, H R
    • Podolny Jr, W
  • Publication Date: 1976-7

Media Info

  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 17 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00139585
  • Record Type: Publication
  • Report/Paper Numbers: ASCE #12233
  • Files: TRIS
  • Created Date: Oct 6 1976 12:00AM