On Wind-Induced Response Analysis of a Inclined Circular Cylinder Using Quasi-Steady Aerodynamic Forces

DOI
  • Kimura Kichiro
    Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
  • Ishii Takahiro
    Department of Civil Engineering, Graduate School of Science and Technology, Tokyo University of Science
  • Sato Kosuke
    Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
  • Yanagihara Tetsuya
    Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
  • Ohdo Katsutoshi
    National Institute of Occupational Safety and Health, Japan

Bibliographic Information

Other Title
  • 準定常空気力を用いた斜円柱の空力振動の解析について

Abstract

Dry Inclined Cable Galloping may occur with long stay cables of cable stayed bridges, and similar response may occur with general circular cross section members. In order to clarify its characteristics, a series of wind tunnel tests was conducted with an inclined circular cylinder model of small aspect ratio. Reproducibility was generally good, and response was observed around 9m/s (Re=1.6×105), it decreased at a little higher wind speed, and large amplitude response was observed at higher wind speed. Aerodynamic coefficients were measured with respect to the tests, and response analysis using quasi-steady aerodynamic forces was discussed. As a result, it was shown that the wind-induced response may possibly be caused by unsteady aerodynamic forces at nondimensional wind speed larger than 100.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390282680600296832
  • NII Article ID
    130006983826
  • DOI
    10.14887/jaweam.2017.0_177
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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