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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Structural Optimization of Concrete Slab Frame Bridges Considering Investment Cost
Author(s)
Majid Solat Yavari1,2, Costin Pacoste1,2 and Raid Karoumi1
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DOI:10.17265/1934-7359/2016.09.002
Affiliation(s)
1. Division of Structural Engineering and Bridges, Royal Institute of Technology (KTH), Stockholm 100 44, Sweden
2. ELU Konsult AB, Stockholm 102 51, Sweden
ABSTRACT
The present study investigates computer-automated design and structural
optimization of concrete slab frame bridges considering investment cost based on a complete
3D model. Thus, a computer code with several modules has been developed to
produce parametric models of slab frame bridges. Design loads and load
combinations are based on the Eurocode design standard and the Swedish design standard for bridges. The necessary reinforcement
diagrams to satisfy the ultimate and serviceability limit states, including
fatigue checks for the whole bridge, are calculated according to the
aforementioned standards. Optimization techniques based on the genetic
algorithm and the pattern search method are applied. A case study is presented
to highlight the efficiency of the applied optimization algorithms. This
methodology has been applied in the design process for the time-effective,
material-efficient, and optimal design of concrete slab frame bridges.
KEYWORDS
Slab frame bridge, structural design, structural optimization, genetic algorithm, pattern search method.
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