Buckling behavior of stiffened plates in concrete-filled steel tubular bridge towers
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Bibliografische Angaben
| Autor(en): |
Lipeng Sun
(Chang’an University, Xi’an, Shannxi, China)
Yongjian Liu (Chang’an University, Xi’an, Shannxi, China) |
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| Medium: | Tagungsbeitrag | ||||
| Sprache(n): | Englisch | ||||
| Tagung: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Veröffentlicht in: | IABSE Congress Nanjing 2022 | ||||
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| Seite(n): | 556-564 | ||||
| Anzahl der Seiten (im PDF): | 9 | ||||
| DOI: | 10.2749/nanjing.2022.0556 | ||||
| Abstrakt: |
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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| Stichwörter: |
wirksame Breite Verstärkungsblech örtliches Beulen finites Element
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| Lizenz: | Die Urheberrechte (Copyright) für dieses Werk sind rechtlich geschützt. Es darf nicht ohne die Zustimmung des Autors/der Autorin oder Rechteinhabers/-in weiter benutzt werden. |
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