Shear buckling resistance of non-uniform thickness bridge girder webs
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Bibliografische Angaben
| Autor(en): |
Mikael Möller
Peter Collin |
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| Medium: | Tagungsbeitrag | ||||
| Sprache(n): | Englisch | ||||
| Tagung: | IABSE Symposium: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas, Venice, Italy, 22-24 September 2010 | ||||
| Veröffentlicht in: | IABSE Symposium Venice 2010 | ||||
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| Seite(n): | 402-403 | ||||
| Anzahl der Seiten (im PDF): | 7 | ||||
| Jahr: | 2010 | ||||
| DOI: | 10.2749/222137810796025078 | ||||
| Abstrakt: |
In very large steel bridge girders, the web often must be composed of more than one plate strip. As an alternative to longitudinal stiffeners of a slender web of uniform thickness, the bottom web plate strip my be designed as a vertical extension of the bottom flange – thicker than the upper web strip. A thicker bottom web strip enhances both the shear buckling resistance of the web and the bending moment resistance of the cross-section. The magnitude of these beneficial effects are adressed in this article. Moreover, the effect on the shear-bending resistance interaction is investigated. Non- linear finite element simulation is conducted and comparison to the predictions of the EC 3 is made. |
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