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:
  • Journal of the Structural Division
  • Volume: 102
  • Issue Number: ST7
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Aerodynamics; Box girders; Bridge design; Bridges; Cable stayed bridges; Concrete bridges; Field studies; Long span bridges; Stiffness; Structural design; Suspension bridges; Velocity; Vortices; Wind; Wind tunnels
• Old TRIS Terms: Field observation; Wind velocity
• Subject Areas: Bridges and other structures; Highways;

Filing Info

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