摘要
为研究台风作用下我国沿海地区超高层建筑表面的风压特性,于2010年在台风"凡亚比"登陆前后对厦门沿海某超高层建筑的风场和建筑表面风压状况进行了同步监测,并开展了建筑模型风洞试验,获得了超高层建筑表面的实测瞬时风压、平均风压、平均风压系数和脉动风压系数的相关特性和分布规律。现场实测与风洞试验的对比研究表明:现场实测和风洞试验所揭示出的超高层建筑表面风压特性及其随风向角的变化规律基本一致;迎风面平均风压系数的现场实测值明显大于风洞试验结果,而背风面和侧风面平均风压系数的现场实测值与风洞试验结果相差较小。
Based on field measurements and wind tunnel test for wind pressure along the surface of a super-tall building on the coast of Xiamen city,this paper presented some important characteristics and distribution regularities of measured instantaneous wind pressure,mean wind pressure,mean wind pressure coefficients and fluctuating pressure coefficients on super-tall building during passage of typhoon Fanabi.The results clearly demonstrate that the mean wind pressure characteristics and its distribution regularities on super-tall building revealed by field measurements are roughly agree with the correponding results of wind tunnel test;the mean wind pressure coefficient results of field measurements is obvious larger than that of wind tunnel test on the windward side,nevertheless,the difference between the mean wind pressure coefficients of field measurements and that of wind tunnel test on other sides is relative small.
出处
《空气动力学学报》
CSCD
北大核心
2014年第2期264-271,共8页
Acta Aerodynamica Sinica
基金
国家自然科学基金重大研究计划项目(91215302)
国家自然科学基金项目(51008237
51178180)
浙江省自然科学基金项目(Y12E080051)
关键词
高层建筑
台风观测
风洞试验
风压特性
风压系数
tall building
typhoon observation
wind tunnel test
wind pressure characteristics
pressure coefficients
