厦门市高层建筑群风场的数值风洞模拟分析

针对高层建筑群的风压、风荷载的分布问题,应用数值风洞方法模拟厦门市高层建筑密集区的风场,并根据数值模拟结果分析高层建筑群静力风效应的一些基本特点。分析结果表明:风场上游的高层建筑对下游的建筑有一定的遮掩效应;当建筑物之间间距较小时,容易产生狭缝效应;在建筑群的外围,迎风面平均风压力较大。同时根据上述分析结果,提出了一些具体的设计建议。

Simulation of Wind Field of High-rise Building Cluster in Xiamen Used the Numerical Architectural Wind Tunnel

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.