Study on the curvature of the road bridge deck under live load action

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  • Yokoyama Hiroshi
    大日本コンサルタント　インフラ技術研究所
  • Kakuma Ko
    国立研究開発法人土木研究所　寒地土木研究所
  • Sato Koji
    国立研究開発法人土木研究所　寒地土木研究所
  • Masuya Hiroshi
    金沢大学　理工研究域環境デザイン学系

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Other Title
  • 活荷重作用時の道路橋床版の曲率に関する研究
  • カツカジュウ サヨウジ ノ ドウロキョウ ショウバン ノ キョクリツ ニ カンスル ケンキュウ

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Abstract

In order to realize a unified damage assessment that are not affected the deterioration type of decks, this study was carried out focusing on the change of the deck curvature. The change of curvature in the wheel load running test was evaluated by the calculation of curvature due to bending deformation. As the results, a suitable range for calculating the curvature, the variability of value by calculation methods and the appropriate calculation method interpolating deflection became clear. The applicability of the change in curvature in the past results of the wheel load running test by using the method shown in the present study was investigated. Finally, the enough possibility of setting a threshold in damage evaluation that focuses on curvature was shown.

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