切角高层建筑表面风荷载特性的有限元分析
摘要
建筑表面的风荷载特性是十分必要的。本文基于有限元软件对切角高层建筑表面的气动力时程变化及风压分布进行
分析,结果表明:切角高层建筑升力系数变化较为平缓,阻力系数变化剧烈,两个系数最大值均出现在1s左右,分
别为1.12和1.46。建筑迎风面为正压力,风压变化最剧烈,侧立面和背风面为负压力,极值之差不超过0.12。风压分
布沿计算域中轴具有明显的对称性,风压最大值为-1.13,位于左立面背风侧上,背风面风压系数最小。
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