摘要
【目的】为研究双坡光伏支架结构的风荷载特性。【方法】通过刚性模型风洞测压试验研究来流风向角、支架倾角和板间间距对双坡光伏板表面风压分布和体型系数的影响规律,并与中美日三国荷载规范取值进行对比,给出体型系数取值建议。【结果】结果表明:在15°风向角情况下,局部体型系数极值出现板端迎风角部区域;0°为双坡光伏板整体体型系数的最不利风向,光伏板的风荷载随着倾角的增加而增大;倾角越大,板间间距对光伏板风荷载的影响越显著,迎风面板对间距的敏感程度明显大于背风面板;支架倾角大于15°时,背风光伏板体型系数高于我国《建筑结构荷载规范》类双坡光伏板的规范值。
【Purposes】 This research has been carried out to investigate the wind load characteristics of dual-slope solar panels.【Methods】 Wind tunnel tests with rigid models were conducted to investigate the effects of wind direction,inclination angle,and panel spacing on the surface wind pressure distributions and shape coefficients of dual-slope solar panels.The experimental results were compared with recommended values specified in three national standards including China,America,and Japan,and the shape coefficients were then suggested.【Findings】 The results show that the extreme value of local shape coefficient occurs at the corner of windward edge of the solar panel at the wind direction of 15°.The most unfavorable wind direction for the overall shape coefficient of dual-slope solar panels is 0°,and the wind loads on the panel increase as the inclination angle increases.For solar panels with large inclination angles,the spacing has a significant influence on the wind loads acting on the structures,and the windward panel is more sensitive to spacing than the leeward panel.When the inclination angle is greater than 15°,the overall shape coefficient of the leeward panel is higher than the specification value for the structure with similar shape as the dual-slope solar panel,as given in the “Load code for the design of building structures” of China.
作者
汪新金
王顺波
邱冶
WANG Xinjin;WANG Shunbo;QIU Ye(Power China Huadong Engineering Corporation Limited,Hangzhou 311122,China;College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China)
出处
《太原理工大学学报》
CAS
北大核心
2024年第5期905-911,共7页
Journal of Taiyuan University of Technology
基金
国家自然科学基金资助项目(51808194)。
关键词
双坡光伏板
风洞试验
风荷载
体型系数
dual-slope solar panel
wind tunnel test
wind load
shape coefficient
