Structures Congress 2020
Aerostructural Optimization of Long Span Bridges: Current Advances and Challenges
Publication: Structures Congress 2020
ABSTRACT
This paper describes the evolution of deck shape of long span bridges since the Tacoma Narrows collapse trying to avoid undesirable aerodynamic behavior under wind flow and the trend in the last decades to increase the length of the main span of suspension and cable stayed bridges. The necessity to use advanced technologies to help the engineer to obtain the best possible design is highlighted and the advantages of applying optimization methodologies is encouraged. It is explained that this approach requires to use only numerical tools and hence to eliminate experimental studies, as wind tunnel tests using reduced models of full bridge of a segment of the deck, and their substitution by computational fluid dynamics (CFD) simulations. After doing so, the current capabilities of this approach are presented and, finally, the problems that need to be solved to have a fully operational methodology able to be implemented in real structures are outlined.
Get full access to this article
View all available purchase options and get full access to this chapter.
ACKNOWLEDGEMENTS
This research has been funded by the Spanish Ministry of Economy and Competitiveness in the frame of the research project BIA2016-76656-R and the Galician regional government (including FEDER Funding) reference ED431C 2017/72. M. Cid Montoya has been funded by the Galician regional government (Xunta de Galicia) with reference ED481B 2018/053 and the Fulbright postdoctoral scholarship program
REFERENCES
Álvarez, A.J., Nieto, F., Kwok, K.C.S., Hernández, S. (2018) “Aerodynamic performance of twin-box decks: A parametric study on gap width effects based on validated 2D URANS simulations”, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 182, 202-221.
Arora, J. (2017). Introduction to Optimum Design.Academic Press. Fourth Edition.
Brown, W. C. (1975a). “Long span suspensión bridges: A british approach”, Annals of the New York Academie of Sciences, 352(1):1
Brown, W. C., Parsons, M. F. and Knox, H. S. G. (1975b). “Bosphorus bridge. Part 1: History of design. Part 2: Construction of superstructure”. Proceedings of the Institution of Civil Engineers, ASCE, Reston, VA, volume 58, 505–567.
Bruno, L. Salvetti, M.V., Ricciardelli, F. (2014), “Benchmark on the Aerodynamics of a Rectangular 5:1 Cylinder: An overview after the first four years of activity”, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 126, 87-106.
Cid Bengoa, C., Baldomir, A., Hernandez, S., Romera, L. (2018). “Multi-model reliability-based design optimization of structures considering the intact configuration and several partial collapses”, Structural and Multidisciplinary Optimization, Vol. 57, 977-974.
Cid Montoya, M., Nieto, F., Hernández, S., Kusano, I., Álvarez, A. J. and Jurado, J. Á. (2018a) “CFD-based aeroelastic characterization of streamlined bridge deck cross-sections subject to shape modifications using surrogate models.” Journal of Wind Engineering and Industrial Aerodynamics, 177:405-428.
Cid Montoya, M., Hernández, S., and Nieto, F. (2018b) “Shape optimization of streamlined decks of cable-stayed bridges considering aeroelastic and structural constraints.” Journal of Wind Engineering and Industrial Aerodynamics, 177:429-455.
Cid Montoya, M., Hernandez, S., Nieto, F., Kareem, A., Jurado, J.A. (2019a), “Aerostructural Shape and Size Optimization of a Long-span Cable-stayed Bridge Considering Service Loads, Static Wind Loads, Torsional Divergence, Flutter and Buffeting Constraints.” Proceedings of the 15th International Conference in Wind Engineering, Beijing, China.
Cid Montoya, M., Ding, F., Kareem, A., Hernández, S., Nieto, F., Baldomir, A. (2019b). “A reliability based tailoring of bridge deck shape for buffeting response.” The 15th International Conference on Wind Engineering, Beijing, China.
Forrester, A., Sobester, A. and Keane, A. (2008), Engineering design via surrogate modelling. John Wiley and Sons, Ltd.
Hernandez, S. and Fontan, A. N., (2002). Practical Applications of Design Optimization, WIT Press.
Jurado, J. A., Hernández, S., Nieto, N. and Mosquera, A. (2011) Bridge Aeroelasticity. Sensitivity Analysis and Optimal Design, WIT Press, Ashurst Lodge, Ashurst, Southampton, SO40 7AA, UK.
Kusano, I. Baldomir, A., Jurado, J. A. and Hernandez, S. (2018), “The importance of correlation among flutter derivatives for the reliability based optimum design of suspension bridges”. Engineering Structures, Vol. 173, 416-428
Nieto, F., Owen, J.S., Hargreaves, D.M., Hernández, S., (2015), “Bridge deck flutter derivatives: Efficient numerical evaluation exploiting their interdependence”, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 136, 138-150.
Nieto, F., Casteleiro, A., Cid Montoya, M., Hernandez, S., Kusano, I., Jurado, J.A., Fontan, A., Alvarez, A. J., Rapela, C. (2019) “Surrogate-based characterization of the aerodynamic response of twin-box decks considering changes in the box geometry and gap distance.” Proceedings of the 15th International Conference in Wind Engineering, Beijing, China.
Roberts, G (1968). “Severn bridge: Design and contract arrangements. (Includes appendices).” Proceedings of the Institution of Civil Engineers, ASCE, Reston, VA, volume 41, 1–48.
Scanlan, R. H. and Tomko, J.J (1971). “Airfoil and Bridge Deck Flutter Derivatives”, Journal of the Engineering Mechanics Division, ASCE, Reston, VA, Vol. 97, Issue 6, 1717-1737.
Scott, R. (2001. In the Wake of Tacoma: Suspension Bridges and the Quest for Aerodynamic Stability ASCE Press, ASCE, Reston, VA.
Vanderplaats, G. N. (2007),Multidiscipline Design Optimization. VRD, USA.
Vickery, B.J. and Basu, R. (1983). “Across-Wind Vibrations of Structures of Circular Cross-Section. Part I. Development of a mathematical model for two-dimensional conditions”, Journal of Wind Engineering, 49-73.
Information & Authors
Information
Published In
Structures Congress 2020
Pages: 742 - 756
Editor: James Gregory Soules, CB&I Storage Tank Solutions
ISBN (Online): 978-0-7844-8289-6
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Apr 2, 2020
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.