【摘要】 对圆柱形建筑双幕墙进行了风洞试验,着重分析了不同分隔形式的圆弧双幕墙的风载特性.结果表明:圆弧双幕墙的内幕墙各部位的风荷载比较一致,且随着圆心角的减小,内幕墙所承受的风荷载增大;圆弧双幕墙的外幕墙各部位的风荷载分布则很不均匀,圆弧端部区域的风荷载比圆弧中间区域的大,且由于外幕墙端部测点的内外压随风向角变化不同步,存在相位差,导致了其净风压比单层幕墙的风荷载还大,这在双幕墙的抗风设计中应特别注意.更多还原

【Abstract】 Wind tunnel tests of a cylindrical building with double-skin facade were carried out,and the characteristics of the wind loads on the arc double-skin facade with different central angles were analyzed emphatically.Results showed that the wind loads on the internal skin facade are even and increase with the central angle decreasing;the wind loads acted on the end of the external skin facade are larger than that on the center of the external facade and much larger than the single-skin facade,so much attention should be paid to the end of the external skin facade in the design of the double skin facades.更多还原