AN INVESTIGATION OF AEROELASTIC INSTABILITY OF SUSPENSION BRIDGES

THE AEROELASTIC INSTABILITY OF SUSPENSION BRIDGES IS INVESTIGATED BY A METHOD SIMILAR TO THAT FOR AEROELASTIC PHENOMENON OF AN AIRCRAFT. USING THE UNSTEADY AIR FORCES OBTAINED FROM THE EXPERIMENTS, THE REDUCED VELOCITIES ARE CALCULATED BY THE FLUTTER EQUATIONS. COMPARISON OF THE CRITICAL FLUTTER SPEEDS CALCULATED FROM THE EQUATIONS WITH THE RESULTS OBTAINED BY FLUTTER MODEL TESTS HAS SHOWN REMARKABLY GOOD AGREEMENT. IT IS CONCLUDED THAT THE FLUTTER SPEED OF SUSPENSION BRIDGES CAN BE ESTIMATED FROM THE FLUTTER EQUATIONS WITH HIGH ACCURACY USING THE MEASURED UNSTEADY AIR FORCES. /RRL/A/

• Supplemental Notes:
  • Paper No 11, 12 PP, 16 FIG, 5 TAB, 9 REF
• Authors:
  • Ukeguchi, N
  • Sakata, H
  • Nishitani, H
• Publication Date: 1966-11

Media Info

• Serial:
  • Suspension Bridges Symposium /Portugal/

Subject/Index Terms

• TRT Terms: Aerodynamics; Equations; Instability; Stability analysis; Suspension bridges; Velocity; Vibration; Wind
• Uncontrolled Terms: Model tests
• Old TRIS Terms: Wind velocity
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208580
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Sep 18 1994 12:00AM