Effects of grid curtains on the wind loads of a high-rise building

详细信息    查看全文

• 作者：Yong Quan ; Jun Kuang ; Ming Gu and Shuai Wang
• 关键词：grid curtain ; surface wind pressure ; aerodynamic force ; high-rise building
• 刊名：The Structural Design of Tall and Special Buildings
• 出版年：2016
• 出版时间：10 April 2016
• 年：2016
• 卷：25
• 期：5
• 页码：245-262
• 全文大小：3304K
• ISSN：1541-7808

文摘

The effects of grid curtains on the local and overall wind loads of a high-rise building are investigated in detail according to a series of wind pressure and wind force tests on rigid model in a wind tunnel. The effects of grid curtains on the mean and fluctuating wind pressures on windward and sideward walls when the wind direction is parallel to the geometrical axes are investigated, along with the effects of the most unfavorable wind pressures for all wind directions. Furthermore, the effects of grid curtains on the mean and fluctuating aerodynamic forces on the entire building are also analyzed for various wind directions, along with the effects of grid curtains on the aerodynamic force spectra when the wind direction is parallel to the geometric axes. The test results indicate that grid curtains affect the mean and fluctuating windward pressure slightly but greatly influence the large sideward negative pressures. Grid curtains increase the mean and fluctuating windward aerodynamic forces and reduce the fluctuating aerodynamic torsions. According to the aerodynamic force spectra, grid curtains can mainly affect the wind forces in the low-frequency range. Copyright