(1中國建筑設計研究院有限公司， 北京 100044；2 中國建筑科學研究院有限公司，北京 100013；3 中建三局第一建設工程有限責任公司，武漢 430040) 

［摘要］雄安站屋蓋體型獨特，屬于風荷載敏感結構，抗風設計非常重要。為明確風荷載取值，對雄安站進行了剛性模型風洞試驗。在風洞試驗的基礎上，著重分析了屋蓋懸挑部分風荷載的分布情況。結果表明，屋蓋懸挑上表面在劇烈流動分離的影響下風荷載體型系數可達到-2.3；雨棚局部鏤空區域對風荷載的影響較小?；陲L洞試驗得到的風壓時程，對屋蓋結構進行了風致響應計算，并給出高架候車廳屋蓋及雨棚各結構單元不利風向角。最后，采用有限元軟件Fluent對過站列車風進行數值模擬分析，得到列車風風壓的空間分布形態。列車過站時，結構上的列車風壓力峰值隨車體與結構距離增大迅速衰減，在列車以350km/h速度運行通過時，高架候車層可滿足舒適性要求。 

［關鍵詞］雄安站；大跨屋蓋結構；風荷載體型系數;風洞試驗；風振分析；列車風 

中圖分類號：TU312，U292 文獻標識碼：A文章編號：1002-848X(2021)24-0013-08

Study on wind tunnel test and wind-induced response of long-span structure for Xiong’an Railway Station 

ZHANG  Yu1,  HE  Lianhua2,  FU  Longbiao2,  FAN  Zhong1,  ZHU  Dan1,  LIU  Tao1,  LI  Baowei3,  ZHOU  Pengfei3 

(1 China Architecture Design & Research Group, Beijing 100044， China；2 China Academy of Building Research, Beijing 100013，China；3 China Construction Third Bureau First Engineering Co., Ltd., Wuhan 430040， China) 

Abstract: The roof of Xiong’an railway station has a unique shape, which is a wind load sensitive structure, so that the wind resistance design is very important. In order to clarify the value of the wind load, the rigid model wind tunnel test was carried out. Based on the wind tunnel test, the wind load distribution of the cantilevered part of the roof was analyzed emphatically. The results show that the wind load shape coefficient of the cantilever upper surface of the roof can reach -2.3 under the influence of violent flow separation. The local hollowed out area of the canopy has little influence on the wind load. Based on the wind pressure time-history obtained from the wind tunnel test, the wind-induced response of the roof structure was calculated, and the adverse wind attack angle of each structural unit of the roof and canopy were given. Furthermore, Fluent software was used to simulate the train induced wind when passing through the station, and the spatial distribution of the train induced wind pressure was obtained. When the train passes the station, the peak value of wind pressure on the structure decreases rapidly with the increase of the distance between the train and the structure. When the train runs through at the speed of 350km/h, the overhead layer can meet the comfort requirements. 

Keywords: Xiong’an Railway Station； large-span roof structure； wind load shape coefficient； wind tunnel test； wind-induced vibration analysis； train induced wind

作者簡介：張宇，碩士，工程師，Email:zhangy130@cadg.cn。