Residual Clamping Force for Corroded Tension-Control Bolts
Publication: Journal of Structural Engineering
Volume 147, Issue 3
Abstract
This study investigated the residual clamping force for corroded tension-control bolts and the effect of each part on force reduction. A finite-element analysis revealed that bolt head section loss, and in particular bolt head diameter reduction, does not reduce the clamping force as much as a decrease in nut width. The root sum square value of the reductions, which is converted into nut width reduction, is proposed as an indicator for estimating the residual clamping force for corroded tension-control bolts. To verify the validity of the proposed method, the residual clamping force of corroded bolts cut from actual steel bridges was measured. The experimental results showed that the accuracy of the proposed method was .
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request. (The items are listed in the notation section.)
Acknowledgments
This work was performed with financial support from JSPS KAKENHI Grant Nos. 18K13822 and 18H01525.
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Published In
Journal of Structural Engineering
Volume 147 • Issue 3 • March 2021
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Mar 3, 2020
Accepted: Oct 7, 2020
Published online: Dec 17, 2020
Published in print: Mar 1, 2021
Discussion open until: May 17, 2021
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