INTERPRETING AEROELASTIC MODELS OF CABLE-STAYED BRIDGES

Wind-tunnel models of long-span bridges have been exploited in various forms since the late 1930s, and the state of the art has progressed in a parallel fashion. With the rapid increase in the number of new cable-stayed designs worldwide, new occasions to review the aeroelastic theory and practice of bridge wind-tunnel modeling have arisen. In particular, the new cable-stayed bridges have distinct vibration modal forms that are a direct reflection of the design philosophy behind this type of structure. The new modal forms present new challenges to modeling and its interpretation. In this context, the present paper offers a critical examination of the mechanisms involved in the wind-tunnel modeling of bridges. The method employed is based on flutter derivatives obtained experimentally from deck section models.

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  • Accession Number: 00472566
  • Record Type: Publication
  • Report/Paper Numbers: Paper No. 21408
  • Files: TRIS
  • Created Date: Aug 31 1987 12:00AM