Buckling behavior of stiffened plates in concrete-filled steel tubular bridge towers
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Détails bibliographiques
| Auteur(s): |
Lipeng Sun
(Chang’an University, Xi’an, Shannxi, China)
Yongjian Liu (Chang’an University, Xi’an, Shannxi, China) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Publié dans: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 556-564 | ||||
| Nombre total de pages (du PDF): | 9 | ||||
| DOI: | 10.2749/nanjing.2022.0556 | ||||
| Abstrait: |
The steel panels on concrete-filled steel tubular bridge towers are large aspect ratio stiffened plates subject to unilateral restraint from concrete, whose local stability performance can be improved by setting multiple longitudinal stiffeners. In this paper, the elastic buckling coefficient of such a unilaterally restrained stiffened plate was derived using the Ritz method. Then, the critical relative stiffness of the stiffeners was proposed to identify the buckling mode of the plate. Further, the effective area method was proposed to evaluate the ultimate strength of the stiffened plates. The numerical simulation of the unilaterally restrained stiffened plates under axial compression was conducted using the verified finite element models. The results show that the buckling coefficient and effective area method proposed in this paper can evaluate the ultimate strength of unilaterally restrained stiffened plates under axial compression with high accuracy. |
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | Cette oeuvre ne peut être utilisée sans la permission de l'auteur ou détenteur des droits. |
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