Trial Design of a New Type of Large-Span Double-Limb Prestressed Concrete Box Girder Bridge with Corrugated Steel Webs
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Détails bibliographiques
| Auteur(s): |
Shangguan Bing
(Tongji University, Shanghai, China)
Qingtian Su (Tongji University, Shanghai, China) Tianyu Li (Fuzhou University, Fuzhou, China) Hao Zhang (Fuzhou University, Fuzhou, 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): | 165-172 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| DOI: | 10.2749/nanjing.2022.0165 | ||||
| Abstrait: |
Owing to the buckling problem of corrugated steel webs, up to now the span of prestressed concrete box girder bridges with corrugated steel webs has not exceeded 200m . Based on the analysis of buckling strength of corrugated steel webs, a new type of large span prestressed concrete box girder bridge with double-limb corrugated steel webs is proposed in this paper. It reduces the free height of the corrugated steel webs by filling core concrete between the double-limbed corrugated steel webs, and increases buckling strength of the webs. Additionally, the optimization technique of strong top plate and thin bottom plate is applied to reduce the self-weight of constant load without reducing the cross-sectional stiffness. The result of the trial design shows that this bridge type is applicable and economical, which can achieve a breakthrough in the span of prestressed concrete box girder bridges with corrugated steel webs. |
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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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