建筑结构学报2018，Vol.39Issue(4)：8-17,10.DOI:10.14006/j.jzjgxb.2018.04.002
阻尼耗能抗风装置对低矮双坡屋面风压影响研究
Research on influence of wind-resistant damping devices on wind pressures of low-rise buildings with gable roof
摘要
Abstract
This paper proposed a method using wind-resistant energy dissipation damper to reduce the wind-induced damages to low-rise buildings with gable roof.In order to study the influence of the wind-resistant energy dissipation devices on the wind pressures applied to the roof,wind tunnel experiments were carried out for the buildings with three types of roofs,namely,roof without energy dissipation devices,vertical-parapets with energy dissipation devices,and vertical-parapets without energy dissipation devices.The experimental results show that the wind-resistant energy dissipation devices can greatly reduce the worst negative pressure over the whole roof.The absolute value of mean negative wind pressure coefficients for the most vulnerable area of the windward roofs,such as that near the ridge and close to the conjunction between the roof and gable,can be decreased by 50 percent.The wind-resistant energy dissipation devices can also affect the wind pressures of the leeward roof area,in which the absolute value of mean negative wind pressure coefficients can be decreased by 15 percent.Finally,the wind pressures of low-rise buildings with gable roof in the wind field were numerically simulated using finite element software.The results show that the distribution of wind pressure on the roof is consistent with the results of wind tunnel experiments.关键词
低矮房屋/耗能装置/风洞试验/数值模拟/平均风压Key words
low-rise building/energy dissipation device/wind tunnel test/numerical simulation/mean wind pressure分类
建筑与水利引用本文复制引用
霍林生,王银坤,何锴,李钢,李宏男..阻尼耗能抗风装置对低矮双坡屋面风压影响研究[J].建筑结构学报,2018,39(4):8-17,10.基金项目
“十二五”国家科技支撑计划项目(2014BAL05B03),国家自然科学基金创新群体项目(51421064),中央高校基本科研业务费专项资金项目(DUT16TD03). （2014BAL05B03）
