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侯愛波1 周錫元2
(1 中國電子工程設計院綜合設計所 北京 100840; 2 中國建筑科學研究院 北京 100013)[摘要] 針對高層建筑群的風壓、風荷載的分布問題,應用數值風洞方法模擬廈門市高層建筑密集區(qū)的風場,并根據數值模擬結果分析高層建筑群靜力風效應的一些基本特點。分析結果表明:風場上游的高層建筑對下游的建筑有一定的遮掩效應;當建筑物之間間距較小時,容易產生狹縫效應;在建筑群的外圍,迎風面平均風壓力較大。同時根據上述分析結果,提出了一些具體的設計建議。
[關鍵詞] 高層建筑群;數值風洞;風荷載;風場Simulation of wind Field of High-rise Building Cluster in Xiamen Used the Numerical Architectural Wind Tunnel
Hou Aibol, Zhou Xiyuan2
(1 Composite Design Division, China Electronics Engineering Design Institute, Beijing 100840, China; 2 Department of Aseismic Engineering, CABR, Beijing 100013, China)Abstract: Aimed to the distribution of the wind pressure of the high-rise building cluster, the numerical architectural wind tunnel method was used to simulate the wind field of the high-rise building cluster in Xiamen. On the basis of the results, some basic characteristics of the mean wind effect of the high-rise building cluster are concluded. The results of the numerical simulation showed that the high-rise building at the upriver of the wind field has some shielding effect to the high-rise building at the downriver of the wind field, the narrow slot effect will generate when the space between the buildings is too small, and the mean wind pressure at the windward side of the building at the outer of the building cluster is more bigger. The design advices are concluded.
Keywords: high-rise building cluster; numerical architectural wind tunnel; wind load; wind field