...键词］大跨度机库；风荷载规范；风洞试验；风荷载体型系数；内部压力系数 [gap=994]Keywords:long-span hangar; wind load code; wind tunnel test; wind load shape factor; internal coefficient ..
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This paper presents a brief introduction to the method, basis and some explanations for determining basic wind pressures of Building Load Code, as well as the feature of wind climate in China.
本文主要介绍正在审批中的国家标准《建筑荷载规范》中基本风压确定的方法、依据及解释，同时介绍我国风气侯的特点。
In China, the high rise structures load code is used for the large span spatial structures, only the first frequency is taken account for the wind vibration analysis, which is not reasonable.
我国现在仍是采用高耸或高层结构的荷载规范，只取结构的第一阶频率计算风振系数，按此方法进行大跨空间网格结构的风振分析是很不合理的。
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