Comparison of cable safety factors of steel cable-stayed bridges and extradosed bridges

DOI

Bibliographic Information

Other Title
  • 鋼斜張橋とエクストラドーズド橋のケーブル安全率の比較

Abstract

At present safety factors are differently specified for steel cable-stayed bridges and extradosed bridges; 2.5 for steel cable-stayed bridges and 1.67 for extradosed bridges. Parametric studies were conducted for both bridge types with the same center span of 205m using cable safety factors as parameters. Both the ultimate and fatigue strengths of stays were evaluated for different cable safety factors. For steel cable-stayed bridges, the ultimate strength of stays are critical than the fatigue strength, and the safety factor of 2.5 is necessary to satisfy the required ultimate strength. For extradosed bridges, the ultimate strength of stays are also critical than the fatigue strength, and the safety factor of 2.1 to 2.8 is necessary depending on the load factors.

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Details 詳細情報について

  • CRID
    1390001205282924544
  • NII Article ID
    130004503552
  • DOI
    10.11532/structcivil.53a.957
  • ISSN
    1881820X
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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