Behavior of Composite Box-Girder Bridges with Corrugated Steel Webs under Eccentric Loading
Publication: Journal of Bridge Engineering
Volume 28, Issue 12
Abstract
The incorporation of corrugated steel webs in composite box-girder bridges has greatly improved their structural performance. However, the low axial stiffness of the shear-deformable corrugated steel webs also affects the structural behavior under the commonly encountered eccentric loading. In this study, experiments were carried out to investigate the behavior of this type of bridge under eccentric loading. Based on the experimental study, the basic assumptions in existing torsion theories are examined. In addition, the proposed formula to estimate the torsion constant and amplification factor considering the additional sectional normal stress due to distortion and warping under eccentric loading in design codes is also checked. From the study, some design recommendations are provided.
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Data Availability Statement
All data, models, and codes generated or used during the study appear in the published paper.
Acknowledgments
The authors are grateful for the financial support of the National Natural Science Foundation of China (Project Nos. 51878391 and 51578323) and the Research Grants Council (RGC) of the Hong Kong Special Administrative Region, China (RGC Project no. HKU 710111E).
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Published In
Journal of Bridge Engineering
Volume 28 • Issue 12 • December 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Dec 17, 2022
Accepted: Aug 5, 2023
Published online: Sep 29, 2023
Published in print: Dec 1, 2023
Discussion open until: Feb 29, 2024
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