ANALYSIS AND TESTS OF SUSPENSION BRIDGE VIBRATIONS
A theoretical analysis has been made of the vertical, torsional and lateral modes of linear, free vibration of suspension bridges, and an equivalent finite element formulation has been developed taking into account the elasticity of the cables and deformations of the towers. An energy analysis clarifies the distribution of strain energy in the various parts of the bridge. The number of natural frequencies and mode shapes determined suffice for accurate, practical vibration analyses. The reliability of the analysis was tested by computing modes and natural frequencies of a real bridge and comparing them with the measured natural frequencies and modes of vertical, torsional, and lateral vibrations.
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Supplemental Notes:
- Secondth Annual ASCE Engineering Mechanics Division Special Conference--Advances in Civil Engineering through Engineering Mechanics, North Carolina State University, Raleigh, North Carolina, May 23-25, 1977.
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Corporate Authors:
American Society of Civil Engineers
345 East 47th Street
New York, NY United States 10017-2398 -
Authors:
- Abdel-Ghaffar, A M
- Housner, G W
- Conference:
- Publication Date: 1977
Media Info
- Pagination: p. 502-505
Subject/Index Terms
- TRT Terms: Alternatives analysis; Bridge design; Bridges; Cables; Coils (Electromagnetism); Deformation; Finite element method; Strain (Mechanics); Structural analysis; Structural design; Structural engineering; Suspension bridges; Testing; Towers; Vibration
- Old TRIS Terms: Strains
- Subject Areas: Bridges and other structures; Highways;
Filing Info
- Accession Number: 00168031
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: Proceeding
- Files: TRIS
- Created Date: Mar 29 1978 12:00AM