Ultimate Resistance of Stiffened Curved Plates with Trapezoidal Stiffeners under Uniaxial Compression
Publication: Journal of Bridge Engineering
Volume 28, Issue 11
Abstract
The stability of stiffened plates has always been an important research issue in bridge engineering. The application of stiffened curved plates (SCPs) in the field of bridge engineering is gradually increasing, but the corresponding research needs to be more comprehensive. Guidelines have yet to be established in bridge design codes for the stability design of SCPs. To study the failure mode and ultimate resistance of SCPs with trapezoidal longitudinal stiffeners under uniaxial compression, six test specimens with a scale ratio of 1:2 were designed in this work, and static loading tests were conducted on three kinds of SCPs with different curvatures. The influence of curvature on the ultimate resistance and failure mode of SCPs was analyzed, and a calculation method for the ultimate resistance of SCPs was discussed. Results showed that the SCPs with trapezoidal longitudinal stiffeners have sufficient overall and local stability. The failure of the SCPs occurred locally in the subpanels between stiffeners, and the ultimate resistance of specimens with different bending radii was insignificantly different. The ultimate compressive resistance calculated following the effective section of the main plate was close to the test results. When the subpanels are locally buckled, the stiffened flat plate calculation method can be used to analyze the ultimate resistance of SCPs, and the calculated results deviate conservatively.
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Data Availability Statement
All data, models, or codes supporting this study's findings are available from the corresponding author upon reasonable request.
Acknowledgments
The research reported here has been conducted as part of the research projects granted by the National Key Research and Development Program of China (2022YFB3706703) and the National Natural Science Foundation of China (NSFC 52078424).
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Published In
Journal of Bridge Engineering
Volume 28 • Issue 11 • November 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Sep 12, 2022
Accepted: Jul 10, 2023
Published online: Aug 17, 2023
Published in print: Nov 1, 2023
Discussion open until: Jan 17, 2024
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