Characterizing wind pressure on CAARC standard tall building with various fa?ade appurtenances: An experimental study

作者：Chen, F. B.; Liu, H. M.; Chen, W.^*; Shu, Z. R.^*; Li, Y.; Li, Q. S.; Han, Y.

来源：Journal of Building Engineering, 2022, 59: 105015.

DOI：10.1016/j.jobe.2022.105015

• CAARC standard Tall building
• Fa?ade appurtenance
• Surface wind pressure
• Wind tunnel test
• Coherence function

Tall buildings are usually considered as wind-sensitive structures. While extensive studies have been conducted concerning the wind load characteristics on tall buildings, the effect of facade appurtenances has not been fully understood. In this study, a 1:300 scaled CAARC (Common-wealth Advisory Aeronautical Research Council) standard tall building was tested in wind tunnel to diagnose the effect of various facade appurtenances on wind pressure characteristics. It is shown that, the change of facade appurtenances can significantly influence the fluctuating wind pressure on the windward and leeward surfaces, with the maximum reduction reaching 21%. By contrast, the effect of facade appurtenance on mean wind pressure is somewhat less pronounced. The results also indicated that adding vertical strips is likely to reduce the horizontal coherence of surface wind pressure, with the maximum reduction of horizontal coherence coefficient reaching 38%. Comparatively, the effect of facade appurtenance on vertical coherence is less significant.

• 单位
  长沙理工大学; 湖南科技大学