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.

Media Info

  • Pagination: p. 502-505

Subject/Index Terms

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