新广州火车站风环境数值模拟研究与评估

Research on Numerical Simulation of Wind Environment and Pedestrian Comfort Evaluation for New Guangzhou Railway Station

建筑风环境问题涉及行人的安全与舒适,绿色建筑与节能等,作为新广州火车站风工程研究的专题之一,本文对新广州火车站的室外风环境问题进行数值模拟计算和分析。根据数值模拟计算得到16个方位风向角下的速度场分布,并结合当地气象统计资料,基于大概率发生事件的风环境品质评估标准,按照行人的坐、站立、行走等活动类别舒适性评判标准,对新广州火车站的站台和主出入口区域行人风环境品质进行了细致的定量评估,研究结果具有参考意义。

Wind environment around buildings is mainly concerned with the safety and comfort of pedestrians,green buildings and energy savings etc.The outdoor wind environment around New Guangzhou Railway Station is numerically researched and analyzed in this paper,which is one of a series of wind engineering researches for the New Guangzhou Railway Station.First,the mean wind velocity fields under 16 wind attacks are calculated;then combined with the local meteorological statistics data and the wind force criteria of large probability events,the qualities of the wind environment at the platforms and the main entrances are carefully evaluated according to the different actions of pedestrians,such as sitting,standing,walking etc.The numerical results would be a help to evaluating the wind environmental quality of this important building.