Flexural behaviour of steel I-girder having corrugated webs and slender flanges
| Autor: | Qazi Inaam, Akhil Upadhyay |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Empirical equations
Materials science business.industry 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Structural engineering Flange 0201 civil engineering Buckling Flexural strength Girder 021105 building & construction Architecture Accordion effect Bending moment Safety Risk Reliability and Quality business Civil and Structural Engineering Parametric statistics |
| Zdroj: | Structures. 27:12-21 |
| ISSN: | 2352-0124 |
| DOI: | 10.1016/j.istruc.2020.05.021 |
| Popis: | Corrugated webs are often utilized in bridge engineering applications due to better shear resistance and improved aesthetics. The stress distribution due to flexure and shear of corrugated girders is different from that of the flat girders. Generally, due to the accordion effect, it is assumed that the web contribution is negligible to the bending moment resistance. Further, the use of slender flanges poses stability problems that require investigation. The current study evaluates the adverse effect of slender flange buckling on the moment of resistance of the corrugated web girders through the stability and strength analysis of the steel I-girders with corrugated webs. Extensive parametric studies on buckling co-efficient and moment capacities are carried out using a validated numerical model to develop a better understanding of the flexural capacities of slender (Class 4) cross-section corrugated girders. Also, various design models proposed over three decades from the literature are compared. Based on numerical results, an empirical equation is presented for the determination of the ultimate moment of resistance of slender flanges for corrugated girders. |
| Databáze: | OpenAIRE |
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