【摘要】 金属屋面作为一种重要的建筑维护结构，因其造型美观、轻质高强等独特优势已被广泛应用于各种大型公共场馆中。以厦门国际博览中心金属屋面工程为背景，基于风洞试验研究了大型金属屋面在风荷载作用下的抗风性能，采用的基本风压为百年一遇的0.95 kN/m~2，通过搭建风洞试验平台，模拟不同风速和风向下金属屋面的受力状态，测量和分析其受力特点、等效风荷载和风振系数等分布规律。对试验结果进行总结分析，得出了围护结构风荷载标准值，并对比了两种常见计算方法。通过ANSYS有限元软件建立会议中心金属屋面模型，并进行风振计算。通过分析位移时程、典型节点等效风荷载等，得出了可用于本工程设计的整体风荷载值。更多还原

【Abstract】 As an important building maintenance structure, metal roofing has been widely used in various large buildings because of its unique advantages such as beautiful shape, light weight and high strength. This paper studies the wind resistance performance of large metal roofing under wind load based on wind tunnel test. The basic wind pressure is 0.95 kN/m2, which is once in 100 years. By building a wind tunnel test platform, the stress state of metal roofing under different wind speed and wind direction is simulated. The distribution of force characteristics, equivalent wind load and wind vibration coefficient were measured and analyzed. The standard value of wind load of the envelope structure is obtained, and the two common calculation methods are compared. Additionally, the metal roofing model of the conference center is established by ANSYS, and the wind vibration calculation is carried out. By analyzing the displacement time history and the equivalent wind load of typical joints,the overall wind load which can be used in this project design is obtained.更多还原