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http://dx.doi.org/10.7734/COSEIK.2018.31.6.309

Evaluating Wind Load and Wind-induced Response of a Twin Building using Proper Orthogonal Decomposition  

Kim, Bub-Ryur (Center for Structural Health Care Technology in Building, Yonsei Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.31, no.6, 2018 , pp. 309-314 More about this Journal
Abstract
The wind load and structural characteristics of a twin building are more complex than those of conventional high-rise buildings. The pressure load due to wind on a twin building was therefore measured via wind tunnel experiments to analyze such characteristics. The wind pressure pattern was then deduced from measured data using proper orthogonal decomposition. Channeling and vortex shedding were observed in the first and second modes, respectively. The along-wind loads on the two buildings featured a positive correlation and the cross-wind loads featured no correlation. Such a correlation affected the wind-induced displacement. The structural member connecting the two buildings had an insignificant effect on the positive correlation, but it notably reduced the wind-induced displacement with a negative correlation.
Keywords
tall building; twin building; wind load; proper orthogonal decomposition; wind-induced response; aerodynamic correlation;
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