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 façade appurtenances has not been fully understood. In this study, a 1:300 scaled CAARC (Commonwealth Advisory Aeronautical Research Council) standard tall building was tested in wind tunnel to diagnose the effect of various façade appurtenances on wind pressure characteristics. It is shown that, the change of façade 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 façade 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 façade appurtenance on vertical coherence is less significant.

高层建筑通常被认为是风敏感结构。虽然已经对高层建筑的风荷载特性进行了广泛的研究，但外墙附属设备的影响尚未完全了解。在这项研究中，一个 1:300 比例的 CAARC（联邦咨询航空研究委员会）标准高层建筑在风洞诊断各种立面附属物对风压特性的影响。结果表明，立面附属物的变化可以显着影响迎风面和背风面的脉动风压，最大减少量达到21%。相比之下，立面附属物对平均风压的影响则不太明显。结果还表明，增加垂直条带可能会降低地表风压的水平相干性，水平相干系数的最大降低达到38%。相比之下，立面附属物对垂直连贯性的影响不太显着。