FLUTTER STABILITY OF VERY LONG SUSPENSION BRIDGES
As longer suspension bridges are being built and planned around the world, many feasibility problems arise. Experiences with the preliminary studies on the Gibraltar Bridge are presented. Flutter is considered to be the main feasibility problem for a very-long-span bridge, and it is analyzed in this paper for span lengths ranging from 1,600 to 6,000 m. As conventional deck designs present unacceptably low critical velocities, several alternative suspension schemes are analyzed to determine their qualities to prevent flutter instability. These systems use a variable number of main cables (from one to four) and hangers arranged in such a way as to produce the highest stiffening effects on the static system. Flutter is analyzed by means of a multimodal finite-element-based method, and critical conditions are defined by observation of the U-f diagrams.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
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Corporate Authors:
American Society of Civil Engineers
345 East 47th Street
New York, NY United States 10017-2398 -
Authors:
- ASTIZ, M A
- Publication Date: 1998-8
Language
- English
Media Info
- Features: Figures; References;
- Pagination: p. 132-139
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Serial:
- Journal of Bridge Engineering
- Volume: 3
- Issue Number: 3
- Publisher: American Society of Civil Engineers
- ISSN: 1084-0702
- Serial URL: http://ojps.aip.org/beo
Subject/Index Terms
- TRT Terms: Bridge decks; Flutter; Flutter (Aeronautics); Instability; Long span bridges; Suspension bridges
- Geographic Terms: Gibraltar
- Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00751500
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 29 1998 12:00AM