【摘要】 采用数值模拟方法并结合风洞模型试验数据,对一平屋面和一斜屋面的体育场主看台悬挑屋盖的表面风压进行了计算和分析,对屋盖上下表面的风压分布规律进行了总结和归纳。在此基础上,提出了两种屋面情况的屋盖风荷载简化分布图线和计算方法,并与国外相关规范建议的公式作了比较。该简化计算方法可直接供同类结构的抗风设计参考和应用。更多还原

【Abstract】 Wind pressures on a flat and s slope cantilevered roof of stadium grandstands have been predicted using numerical siumlation and wind tunnel test.The distribution trends of wind pressures on the upper and lower surface of the roofs are determined and summarized.Simplified wind-load distribution curves and their determination approach for such cantilevered roof structures are proposed.The distribution curves are compared with those recommended by relevant foreign design codes.The proposed wind-load determination approach is directly applicable to practical wind resistant design of the same type of cantilevered roof structures.更多还原