论文部分内容阅读
在大气边界层风洞中开展了某高层建筑群刚性模型测压试验,对比分析了不同前方干扰条件下受扰建筑物表面风压分布特性。结果表明:1)建筑前方无施扰建筑时,斜向布置的施扰建筑物以及并联布置的施扰建筑物对受扰建筑立面的正压影响较大;2)前方施扰建筑较低时,下部平均正压减小明显,最大高达70%,而高处则存在正压局部放大效应;3)前方施扰建筑较高时,迎风面的干扰因子在高度上分布是比较平均的,并且受到的遮挡效应十分明显。所得结果可为此类建筑进行结构风荷载设计提供参考。
In the atmospheric boundary layer wind tunnel, the rigid model pressure test of a high-rise building complex was carried out and the wind pressure distribution characteristics of the disturbed buildings under different interferences were compared. The results show that: 1) When there is no building in front of the building, the obliquely arranged building and the disturbing buildings arranged in parallel are more influential on the positive pressure on the building facade; 2) The average positive pressure in the lower part decreases obviously, the maximum is as high as 70%, while the positive part has the positive amplification effect in the high part. 3) When the frontal disturbance building is high, the disturbance factor on the windward side is more evenly distributed in height, And by the block effect is obvious. The results can provide reference for structural wind load design of such buildings.