ON THE FLUTTER INSTABILITY OF A SUSPENSION BRIDGE USING THE FINITE ELEMENT METHOD

The study of aeroelastic instability is fundamental for the feasibility of a large span suspension bridge. The determination of the flutter wind velocity is generally determined by a two-degrees-of-freedom model. In this paper an analytical model is developed to predict the flutter behavior of a suspension bridge, with a multi-degrees-of-freedom system. A finite element technique is employed. The numerical difficulties related to the solution of the problem are discussed. A suitable method is developed to increase the numerical stability of the solution. As an example, the results of the method are applied to the Messina crossing project.

• Supplemental Notes:
  • Prepared for meeting held September 26-30, 1977.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • DIANA, G
  • Falco, M
  • Gasparetto, M
• Publication Date: 1977-9

Media Info

• Features: References;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Aerodynamic force; Aerodynamics; Bridges; Chemical processes; Deformation; Dynamic loads; Finite element method; Flutter; Flutter (Aeronautics); Forecasting; Mathematical methods; Mathematical models; Stability (Mechanics); Stability analysis; Structural analysis; Suspension bridges; Velocity; Wind
• Uncontrolled Terms: Dynamic response
• Old TRIS Terms: Aerobic processes; Wind effects; Wind velocity
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00173561
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: ASME 77-DET-150
• Files: TRIS
• Created Date: Jun 28 1978 12:00AM