Structures Congress 2019
Design of Experimental Apparatus for Real-Time Wind-Tunnel Hybrid Simulation of Bridge Decks and Buildings
Publication: Structures Congress 2019: Blast, Impact Loading, and Research and Education
ABSTRACT
Due to the challenges in numerical simulation of wind-structure interaction, the dynamic response of long-span bridges or high-rise buildings subjected to wind loads has been primarily evaluated through wind tunnel tests. The wind-tunnel tests, especially aeroelastic tests, require calibration of springs, masses, and the damping properties of an experimental specimen which takes considerable time and efforts. In hybrid simulation, where a numerical model and a physical specimen are tightly integrated, a component that is difficult to be represented with a numerical model is represented experimentally, while the rest of the structural system is represented numerically. In this paper, designs of two configurations of experimental apparatus for real-time wind-tunnel hybrid simulation are presented: one for section model tests of bridge decks and another one for high-rise buildings. The experimental apparatus for section model tests, which consists of four linear motors, is for aeroelastic tests of section model of a long-span bridge. The experimental apparatus for buildings consists of two linear motors to test aeroelastic response of scaled high-rise building model. The rational on the selection of the design configurations is discussed which is followed by configuration of the experimental setup and a potential strategy for running real-time hybrid simulation.
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ACKNOWLEDGEMENT
The research project is funded by Natural Sciences and Engineering Research Council of Canada (NSERC). The equipment for the section model test apparatus is funded by Research Tools and Instruments Grant of NSERC. The building test apparatus is funded through ENGAGE Grant of NSERC in collaboration with Gradient Wind Engineering. The second and fourth authors are also supported by the National Research Foundation of Korea (NRF) funded via the Korean Government (MSIP) [Grant no. 2017R1A2B4008973].
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Published In
Structures Congress 2019: Blast, Impact Loading, and Research and Education
Pages: 235 - 245
Editor: James Gregory Soules, McDermott International
ISBN (Online): 978-0-7844-8224-7
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: Apr 22, 2019
Published in print: Apr 22, 2019
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