Structures Congress 2019
Wind Analysis of Long-Span Bridges Using Computational Fluid Dynamics
Publication: Structures Congress 2019: Bridges, Nonbuilding and Special Structures, and Nonstructural Components
ABSTRACT
Wind loading is one of the critical parameters for the design of long-span bridges due to their inherent low stiffness and damping. The analysis of the dynamic behavior of long-span cable-stayed and suspension bridges under wind excitation is usually performed using wind tunnel testing. In the last two decades, computational fluid dynamics (CFD) has been gaining attention towards its general use in bridge design. From the late 1990s, the number of references in literature of numerical simulations of aerodynamic and aeroelastic problems in bridges has increased, and the accuracy in the simulations has enhanced due to improvements in modeling formulation, computer power, and software. The objective of this research is to utilize a commercial CFD software, ANSYS CFX, to study the response of two long-span bridges, namely a bluff-body and an aerodynamic shaped section, due to wind-induced instabilities, in particular, flutter. The first bridge is the bluff-body double-deck Bay Bridge in San Francisco and the second is the aerodynamic twin-deck Stonecutters Bridge in Hong Kong. Results are compared against wind tunnel test results.
Get full access to this article
View all available purchase options and get full access to this chapter.
ACKNOWLEDGEMENT
The authors would like to thank team members, in particular Maryam Asghari Mooneghi, for sharing their reports and insights to help complete these studies.
REFERENCES
ASCE. (2010). “Minimum Design Loads for Buildings and Other Structures.” ASCE/SEI Standard 7-10.
Brusiani, F., De Miranda, S., Patruno, L., Ubertini, F., & Vaona, P. (2013). On the evaluation of bridge deck flutter derivatives using RANS turbulence models. Journal of Wind Engineering and Industrial Aerodynamics, 119, 39-47.
Chowdhury, A. G., & Sarkar, P. P. (2003). A new technique for identification of eighteen flutter derivatives using a three-degree-of-freedom section model. Engineering Structures, 25(14), 1763-1772.
de Miranda, S., Patruno, L., Ubertini, F., & Vairo, G. (2014). On the identification of flutter derivatives of bridge decks via RANS turbulence models: Benchmarking on rectangular prisms. Engineering Structures, 76, 359-370.
Den Hartog, J.P., 1956. Mechanical Vibrations. 4th ed. McGraw-Hill, New York
Diana, G., Resta, F., Zasso, A., Belloli, M., & Rocchi, D. (2004). “Forced motion and free motion aeroelastic tests on a new concept dynamometric section model of the Messina suspension bridge.” Journal of wind engineering and industrial aerodynamics, 92(6), 441-462.
Gu, M., Zhang, R., & Xiang, H. (2000). Identification of flutter derivatives of bridge decks. Journal of Wind Engineering and Industrial Aerodynamics, 84(2), 151-162.
Iwamoto, M., & Fujino, Y. (1995). Identification of flutter derivatives of bridge deck from free vibration data. Journal of Wind Engineering and Industrial Aerodynamics, 54, 55-63.
Šarkić, A., Fisch, R., Höffer, R., & Bletzinger, K. U. (2012). Bridge flutter derivatives based on computed, validated pressure fields. Journal of Wind Engineering and Industrial Aerodynamics, 104, 141-151.
Selvam, R. P., Govindaswamy, S., & Bosch, H. (2001). Aeroelastic analysis of bridge girder section using computer modeling (No. MBTC FR-1095,). University of Arkansas, Mack-Blackwell National Rural Transportation Study Center.
Simiu, E., & Scanlan, R. H. (1996). Wind effects on structures: fundamentals and applications to design.
Wikipedia (last access 24 October 2018): https://en.wikipedia.org/wiki/Aeroelasticity
Wilcox, D. C. (1988). Multiscale model for turbulent flows. AIAA journal, 26(11), 1311-1320.
Information & Authors
Information
Published In
Structures Congress 2019: Bridges, Nonbuilding and Special Structures, and Nonstructural Components
Pages: 210 - 220
Editor: James Gregory Soules, McDermott International
ISBN (Online): 978-0-7844-8223-0
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: Apr 22, 2019
Published in print: Apr 22, 2019
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.