STUDY ON A DAMPER SYSTEM OF THE TOWER OF A LONG SUSPENSION BRIDGE UNDER CONSTRUCTION

It is well known that the tower of a long-suspension bridge under construction is susceptible to large vortex-induced vibrations. In the case of Oonaruto Bridge, it was necessary to consider the aeroelastic instability of that before construction too. The authors therefore designed a damper system consisting of a 330 m-span wire rope, weight and oil damper. The utility of this system was studied by theoretical analysis and a model test. As a result of this study, it was found that the test results correspond adequately with the analytical results. This system was adopted to the tower and the strong-wind response, was measured thereby confirming the effectiveness of this system. (Author)

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  • Corporate Authors:

    Mitsubishi Heavy Industries Limited

    5-1 Marunouchi, 2-chome, Chiyoda-Ku
    Tokyo 100,   Japan 
  • Authors:
    • TANAKA, A
    • Takasaki, K
    • Sasaki, N
    • Saito, T
    • Egusa, T
  • Publication Date: 1983

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Filing Info

  • Accession Number: 00382487
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 30 1984 12:00AM