Characteristic of residual axial force for high-strength bolts with corrosion shape

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  • 実腐食減肉形状を有する摩擦接合用高力六角ボルトの残存軸力特性
  • ジツ フショク ゲンニク ケイジョウ オ ユウスル マサツ セツゴウヨウ コウリョク ロッカク ボルト ノ ザンソンジクリョク トクセイ

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In this study, a characteristic of residual axial force for corroded high-strength bolts was investigated. Corroded bolts cut from a steel bridge were used for the measurement of thickness reduction and residual axial force. The experimental results showed the residual axial force has a good correlation with the summation of thickness reduction. An FE analysis examined the effect of the corroded shape of bolts on the residual axial force. The analytical results revealed that the effect of corroded shapes on the residual axial force can be considered by the thickness reduction near the washer.

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