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Published: Građevinar 69 (2017) 5
Paper type: Subject review
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Optimization of compressed stiffened flanges in bridge box girder cross section

Anđelko Vlašić, Nijaz Mujkanović

Abstract

Due to bending, flanges of steel box girder cross sections act as compression plates and require stiffeners. Using stability evidence from EN 1993-1-5, a parametric study was performed for six different types of stiffeners. The obtained diagrams show design buckling resistance stress for various plate width and thickness values, and the type and number of stiffeners. Furthermore, an optimization process was performed to find the most suitable types and number of stiffeners, depending on the acting design compression force. Optimization parameters are the minimum steel area and minimum number of stiffeners.

Keywords
bridge, steel box, compression flange, buckling, stiffening, reduced stress method

HOW TO CITE THIS ARTICLE:

Vlašić, A., Mujkanović, N.: Optimization of compressed stiffened flanges in bridge box girder cross section, GRAĐEVINAR, 69 (2017) 5, pp. 367-378, doi: https://doi.org/10.14256/JCE.1916.2016

OR:

Vlašić, A., Mujkanović, N. (2017). Optimization of compressed stiffened flanges in bridge box girder cross section, GRAĐEVINAR, 69 (5), 367-378, doi: https://doi.org/10.14256/JCE.1916.2016

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Creative Commons License
This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
Autor VLASIC ANDjELKO WEB
Anđelko Vlašić
University in Zagreb
Faculty of Civil Engineering
Mujkanovic Nijaz
Nijaz Mujkanović
University of Zagreb,
Faculty of Civil Engineering