Opening ventilating holes on a supertall building is an effective way to reduce its wind‐induced structural response and enhance its wind‐resistant performance. However, its interference effect on the neighboring supertall buildings has seldom been studied yet. Taking two actual neighboring buildings, the Guangdong International Financial Center (IFC) and the Guangzhou Chow Tai Fook Finance Centre (CTF) as examples, this study carried out high‐frequency force balance wind tunnel tests to investigate the interference effect of the IFC's ventilating openings on the wind‐induced response of CTF. Results show that when CTF is located in the downstream area of IFC, the ventilating openings on IFC make the high‐energy frequency band of the power spectral density (PSD) of CTF's crosswind aerodynamic load offset obviously towards the lower frequency interval. Consequently, the wind‐induced response of CTF can be significantly magnified or minified depending on the reduced structural natural frequencies. Since the reduced natural frequency for the structural base bending moment computation is usually smaller than that for the acceleration response computation, ventilation openings on IFC can be advantageous to the crosswind base bending moment response relevant to structural safety design, and disadvantageous to the acceleration response relevant to occupant comfort assessment.

中文翻译：

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通风的高层建筑对其邻近的高层建筑的风干扰影响—案例研究

在超高层建筑上开通风孔是减少其风致结构响应并增强其抗风性能的有效方法。然而，很少研究其对相邻超高层建筑的干扰作用。以广东国际金融中心（IFC）和广州周大福金融中心（CTF）两个实际相邻的建筑物为例，本研究进行了高频力平衡风洞测试，以研究IFC通风口的干扰效果关于风对CTF的响应。结果表明，当CTF位于IFC的下游区域时，IFC上的通风孔构成了CTF'功率谱密度（PSD）的高能频带 侧风的空气动力负载明显偏向较低的频率区间。因此，根据减小的结构固有频率，可以显着放大或缩小CTF的风致响应。由于用于结构基础弯矩计算的减小的固有频率通常小于用于加速度响应计​​算的固有频率，因此IFC上的通风口可能有利于与结构安全设计相关的侧风基础弯矩响应，而不利于相关的加速度响应进行乘员舒适度评估。