期刊
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
卷 168, 期 -, 页码 91-100出版社
ELSEVIER
DOI: 10.1016/j.jweia.2017.05.008
关键词
Double-skin facade; Aerodynamic modification; Tall building; Wind-induced response; Vortex shedding
To date the engineering community has seen double-skin facade systems as non-structural elements on buildings for the aesthetic desire, improving the indoor environment, reducing the energy use, and even improving acoustics in buildings. In this study, the effects of a double-skin facade system on the wind-induced responses of a tall building were investigated via a program of wind tunnel tests. Two types of wind tunnel tests, i.e. aeroelastic test and pressure test, were performed. It was found that a double-skin facade with/without vertical openings installed in front of the windward face of the building model results in very different effects on the wind-induced responses in alongwind and crosswind directions. In the alongwind direction, the facade with/without openings induces negligible effects on the wind-induced response. However, in the crosswind direction, the facade with opening(s) reduces the wind-induced response significantly, whereas the facade without any opening increases the response, compared to the bare tall building model. Therefore, in addition to achieve the purposes of the aesthetic desire, improving indoor environment and reducing energy use, the double-skin facade system with vertical opening(s) can also be used to effectively reduce crosswind responses without inducing larger alongwind responses.
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