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中文摘要：
对中庭式高层建筑1：500的刚性模型进行了风洞试验。基于试验结果，对中庭内立面风压的特性进行了详细研究。结果表明，当立面不开洞时，顶部气流分离是中庭内立面风压形成的主要原因，中庭内立面风压分布较为均匀，水平相关性很高，竖直相关性也较高。立面开洞后，随着开洞率的增大，平均风压先减小后趋于稳定，脉动风压先减小后增大。针对中庭内立面风压的特点，对中庭内立面的抗风设计提出了建议公式，通过建议公式的预测结果和试验结果的对比，证明了该方法能用于类似工程设计。
英文摘要：
Wind tunnel tests of 1：500 rigid model of tall building with atrium were carried out. Based on the experimental results, characteristics of wind pressure on atrium inner facades and wind loads on tall building structures were investigated in detail. The results show that the formation of flow separation on the top of tall buildings with atrium plays a critical role in the generation of wind pressures on atrium inner facades without opening. Meanwhile, wind pressure coefficient distribution on the atrium facades is relatively uniform. Moreover, the horizontal and vertical correlation of pressure coefficient is high at most locations on atrium facades. With the increasing of the opening ratio, the mean wind pressure coefficients first decrease and then stabilize, and the fluctuating wind pressure coefficients first decrease and then increase, A design guideline for wind-resistant design of atrium facades was proposed, and the results predicted by the proposed guideline are in good agreement with those from the wind tunnel tests, indicating that the proposed guidelines can be used for similar engineering design.
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