CAJ | 학술논문

通过对台风“天兔”登陆时厦门沿海某高层建筑的风场及建筑物迎风墙面风压的现场实测数据进行分析，研究了高层建筑风场和其迎风墙面风压的状况及它们的相关性。对台风登陆前后的风场和风压数据进行的分析表明：城市上空强风“天兔”的湍流度不是很大，且随着风速的增加变化比较平稳；迎风墙面各测点的风压系数呈现出中间大、两头小的特征，但差别不是很大。在不同平均风时距和不同来流风向角条件下，对迎风墙面风场和风压的相关性进行了分析。结果表明：当基本时距取为3s 时风场同风压的相关性较高，当来流风向垂直于结构迎风墙面时，风场同风压场的相关性比较大。
통과대태풍“천토”등륙시하문연해모고층건축적풍장급건축물영풍장면풍압적현장실측수거진행분석，연구료고층건축풍장화기영풍장면풍압적상황급타문적상관성。대태풍등륙전후적풍장화풍압수거진행적분석표명：성시상공강풍“천토”적단류도불시흔대，차수착풍속적증가변화비교평은；영풍장면각측점적풍압계수정현출중간대、량두소적특정，단차별불시흔대。재불동평균풍시거화불동래류풍향각조건하，대영풍장면풍장화풍압적상관성진행료분석。결과표명：당기본시거취위3s 시풍장동풍압적상관성교고，당래류풍향수직우결구영풍장면시，풍장동풍압장적상관성비교대。
Based on the field measurement and wind pressure measurement on the surface of a super-tall building on the coast of the Xiamen city during the passage of typhoon Usagi in Sep-tember 2013,the wind field was measured by a propeller anemometer placed at the roof of the test building,and the wind pressure was measured by 18 pressure sensors stuck on the glass wall on the refuge floor at the height of about 70m.This paper presents selected measurement data (such as the mean wind direction,mean wind speed,turbulence intensity,mean pressure,and soon).Through in-depth analysis it is shown that the 10min wind direction and wind speed are relatively stable,the filed turbulence intensity of typhoon Usagi is normal,and with the increase of wind velocity the turbulence intersity varies steadily.The wind pressure coefficient shows the following characteristics:the wind pressure coefficient of each measuring point on the windward side shows a relatively large value in the middlepoint and smaller values from the middle to each end point,but the gap is not great.Meanwhile,the correlation between the measured wind field (the mean and RMS wind velocity,the turbulence intensity)and wind pressure (mean and RMS wind pressure)on the windward side is analyzed from two aspects.One is to investigate the corre-lation in 8 selected different time intervals:1s,2s,3s,10s,30s,1min,3min,10min,and the results of the research clearly reveal that:when the average time interval is taken as 3s,there is a relatively high correlation between the measured wind field and wind pressure.The other one is to evaluate the correlation under different wind directions:30.8°,33.2°,36.7°,39.4°,42.1°, 45.3°,47.6°,49.5°,and as the wind direction is roughly perpendicular to the windward wall (when the wind direction is 39.4°),the correlation between the wind field and the wind pressure is relatively large.