北京大兴国际机场航站楼核心区工程双金属屋面风洞试验研究

Wind Tunnel Test of Bimetallic Roof in the Core Area of Beijing Daxing International Airport Terminal Building

以北京大兴国际机场航站楼核心区工程屋面为研究对象,通过风洞试验测定局部最不利位置风荷载及受力情况,测量均匀流和紊流下局部模型表面压力分布;测量装饰板典型测点变形、典型连接件和次檩条内力;对屋盖进行均匀流下的破坏试验,得出风揭破坏临界风速。

Taking the roof of the core area of Beijing Daxing International Airport Terminal Building as the research object, wind tunnel tests were carried out to determine the local wind load and stress at the most disadvantageous position. The pressure distribution on the surface of the local model under uniform and turbulent flow was measures. The deformation of typical measuring points of decorative panels, the internal forces of typical connectors and purlins were measured.The critical wind speed of wind-exposed damage is obtained through the failure test of roof under uniform flow.