補修溶接を施した既設クレーンランウエイガーダーの超音波衝撃処理による疲労寿命向上

DOI

書誌事項

タイトル別名
  • FATIGUE IMPROVEMENT METHOD FOR WELD REPAIRED CRANE RUNWAY GIRDER BY ULTRASONIC IMPACT TREAMENT

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説明

A fatigue improvement method using ultrasonic impact treatment, which improves both toe profile and residual stress condition, was examined. This method is applied to in-plane-gusset detail and out-of-plane gusset detail of existing crane runway girders. Comparison with conventional grinding method was conducted by small joint specimen fatigue tests, and UIT gave much better result. Also, its applicability to mild steel and influence from repair weld is examined through girder fatigue tests. Significant fatigue improvement was obtained for 400MPa class mild steel. Also, the effect is not reduced by repair weld. This result has encouraged the proper application of UIT for existing CRGs.

収録刊行物

  • 鋼構造論文集

    鋼構造論文集 14 (55), 47-58, 2007

    一般社団法人 日本鋼構造協会

キーワード

詳細情報 詳細情報について

  • CRID
    1390282680290755712
  • NII論文ID
    130004301357
  • DOI
    10.11273/jssc1994.14.55_47
  • ISSN
    18840329
    18809928
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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