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依据某超高层建筑,着重介绍了风洞试验的方法,描述了在考虑有、无环境建筑影响下,该高层建筑一些典型的表面风压特性以及一些测点风压随风向角的变化规律。结果表明:迎风面中上部风压系数较大,接近1.0;底部部分风压系数达到1.0;侧风面和背风面风压系数大多为负值,特别是靠近角落处由于涡旋脱落,其值可达到-2。环境建筑对该高层建筑表面风压的影响较大,特别在建筑中下部。为其进行结构设计提出一些参考。
According to a super high-rise building, the method of wind tunnel test is emphatically introduced. Some typical surface wind pressure characteristics of the high-rise building and some wind pressure variations with wind direction are described . The results show that the wind pressure coefficient at the middle and upper windward is large, close to 1.0, the wind pressure coefficient at the bottom reaches 1.0, and the wind pressure coefficients at the crosswind and leeward are mostly negative, especially near the corner due to vortex shedding Can reach -2. The impact of environmental buildings on the wind pressure on the high-rise buildings, especially in the lower part of the building. For its structural design put forward some reference.