Analytical Studies of a Novel Bridge Column-Footing Pipe Pin Connection under Lateral Loading
Publication: Journal of Bridge Engineering
Volume 26, Issue 2
Abstract
Different types of connections have been used in practice to simulate a hinge behavior at the base of bridge columns. Previous earthquakes demonstrated that none of them could remain elastic and damage free during the seismic events, and thus did not satisfy the code requirements. To address this shortcoming, base pipe pin connections were developed. Cyclic loading studies of base pipe pins incorporated at the base of a scaled two-column bent model showed promising results. This paper presents the results of comprehensive analytical studies conducted on base pipe pins under lateral loading. An elaborate finite element model of the pins was developed using ABAQUS, and the accuracy of the modeling was evaluated based on the correlation with experimental results. The verified model was used to investigate the effect of different parameters on the seismic performance of the pins. Results of the parametric studies led to a series of detailing recommendation for optimized design of base pipe pins as capacity protected members.
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Acknowledgments
This article presents some of the results of the study funded by Caltrans under grant no. 65A0423. The authors are grateful for the support of Caltrans research program manager, Peter Lee. The assistance and advice from Drs. A. Zaghi, A. Vosooghi, M. Mehraein, and M. Tazarv during the course of analytical studies are greatly appreciated.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 26 • Issue 2 • February 2021
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Aug 20, 2019
Accepted: Sep 11, 2020
Published online: Dec 15, 2020
Published in print: Feb 1, 2021
Discussion open until: May 15, 2021
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