What question did this study set out to answer?

This research aims to evaluate the performance of high strength bolted joints using the nut rotation method.

February 22, 2026Japanese Journal of JSCE0 citations

A Study on F10tw High Strength Long Bolted Joint With Filler Plates Using Nut Rotation Method

KMKuniaki MINAMI HYHideki YOKOYAMA KKKentaro KIMURA

Key Points

This research aims to evaluate the performance of high strength bolted joints using the nut rotation method.
Conducted experiments on high strength bolted joints with varying bolt lengths and filler plates.
Performed axial force tests and relaxation tests to assess joint integrity.
Investigated the necessary nut rotation angles to maintain design axial forces.
Identified effective nut rotation angles that satisfy the design axial force even after relaxation.
Established performance metrics for slip resistance under different configurations of bolt length and filler plate presence.

Abstract

本論文は，無機ジンクリッチペイントを施した10Tクラスの高力ボルト摩擦接合継手におけるナット回転法を実工事への適用に向けて実施した実験的研究である．本研究では，ボルト長(5dを超える長尺を含めた4水準）およびフィラープレートの有無をパラメータとし，導入軸力試験およびリラクセーション試験を行い，ボルトねじ部が降伏域に入らないでリラクセーション後も設計ボルト軸力を満足できるナット回転角を検討した．さらに，検討したナット回転角により締付けたボルト継手試験体を用いてすべり耐力試験を実施し，長尺ボルトおよびフィラープレートの有無を踏まえた10Tクラス(M22)のナット回転法の適用に関して検討した．

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Cite This Study

MINAMI et al. (2026) studied this question.

synapsesocial.com/papers/699a9ceb482488d673cd2ab7 https://doi.org/10.2208/jscejj.25-00175

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February 22, 2026Japanese Journal of JSCE0 citations

A Study on F10tw High Strength Long Bolted Joint With Filler Plates Using Nut Rotation Method

View Full Paper

KMKuniaki MINAMI HYHideki YOKOYAMA KKKentaro KIMURA

Key Points

This research aims to evaluate the performance of high strength bolted joints using the nut rotation method.
Conducted experiments on high strength bolted joints with varying bolt lengths and filler plates.
Performed axial force tests and relaxation tests to assess joint integrity.
Investigated the necessary nut rotation angles to maintain design axial forces.
Identified effective nut rotation angles that satisfy the design axial force even after relaxation.
Established performance metrics for slip resistance under different configurations of bolt length and filler plate presence.

Abstract

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Cite This Study

MINAMI et al. (2026) studied this question.

synapsesocial.com/papers/699a9ceb482488d673cd2ab7 https://doi.org/10.2208/jscejj.25-00175

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