Structures Congress 2020
Computational Techniques for Novel Design of Long-Span Bridges Considering Aeroelastic Phenomena
Publication: Structures Congress 2020
ABSTRACT
Optimization techniques have demonstrated their capability to obtain economic and sustainable designs while meeting the performance and safety requirements in a number of engineering disciplines. In the bridge engineering field, the increasing main span length of super-long span bridges makes the wind-resistant design a top priority. However, it has been traditionally conducted following heuristic rules based on experimental analyses. Alternatively, the last advances in CFD and metamodeling techniques enables the development of optimization frameworks. The right conception of the aerostructural optimization problem is crucial to achieve noticeable reductions in the required amount of material and comprehensive safe designs. This paper reports the last advances in the authors’ line of research that pursues the definition of a numerical methodology for the full aerostructural optimization of long-span bridges considering shape and size design variables. The capabilities of the method are presented, and the necessity of considering uncertainty in the process is discussed.
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ACKNOWLEDGEMENTS
This research has been funded by the Spanish Ministry of Economy and Competitiveness in the frame of the research project with reference BIA2016-76656-R, and the Galician regional government, including FEDER funding, with reference ED431C 2017/72. M. Cid Montoya is funded by the Galician regional government with reference ED481B 2018/053 and the Fulbright postdoctoral scholarship program. A. Kareem especially thanks NSF support under grant CMMI #1612843. Fei Ding is supported by a grant from the Center for Informatics and Computational Sciences.
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Structures Congress 2020
Pages: 767 - 782
Editor: James Gregory Soules, CB&I Storage Tank Solutions
ISBN (Online): 978-0-7844-8289-6
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© 2020 American Society of Civil Engineers.
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Published online: Apr 2, 2020
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