建筑女儿墙对光伏板风载特性影响的风洞试验研究
引用文献：
张学森 李丹 吴香国 张洪福 刘婷婷. 建筑女儿墙对光伏板风载特性影响的风洞试验研究[J]. 建筑结构，2022，48（14）：115-123.
ZHANG Xuesen LI Dan WU Xiangguo ZHANG Hongfu LIU Tingting. Wind tunnel test study on influence of building parapet on wind load characteristics of photovoltaic panel[J]. Building Structure，2022,48（14）：115-123.
摘要：屋顶是光伏板结构的重要载体，屋顶形式以及屋顶附属结构形状等因素会影响屋顶光伏板表面风载特性，其中女儿墙靠近屋顶来流风流动分离起始区域，位置较为敏感，对板面风荷载的影响不容忽视。基于此，通过风洞试验研究了无女儿墙建筑屋顶、有600mm高女儿墙屋顶两种情况下的屋顶光伏板风载特性，给出了屋顶光伏板风压系数。研究结果表明，屋顶不设置女儿墙时，光伏阵列的迎风前缘角部位置和后排受风吸力；女儿墙对最不利风向角下光伏阵列的极值风吸力起到抑制作用，屋顶光伏板阵列的合成平均风压系数降低百分率达到72.5%。此外，将研究结果与相关规范进行了对比分析，表明在屋顶设置女儿墙情况下，规范高估了光伏板表面风压。
关键词：建筑屋顶；光伏板；风洞试验；女儿墙；风压系数
基金：哈尔滨科技创新人才引导资金项目(2011RFLXG014)；厦门市建设科技计划项目(XJK2020-1-9)。
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[6] STATHOPOULOS T,ZISIS I,XYPNITOU E.Local and overall wind pressure and force coefficients for solar panels[J].Journal of Wind Engineering and Industrial Aerodynamics,2014,125:195-206.
[7] KOPP G A.Wind loads on low-profile tilted,solar arrays placed on large,flat,low-rise building roofs[J].Journal of Structural Engineering,2014,140(2):04013057.
[8] BANKS D.The role of corner vortices in dictating peak wind loads on tilted flat solar panels mounted on large,flat roofs[J].Journal of Wind Engineering and Industrial Aerodynamics,2013,123:192-201.
[9] GINGER J,PAYNE M,STARK G,et al.Investigation on wind loads applied to solar panels mounted on roofs[R].Townsville:Cyclone Testing Station,2011.
[10] STENABAUGH S E,IIDA Y,KOPP G A,et al.Wind loads on photovoltaic arrays mounted parallel to sloped roofs on low-rise buildings[J].Journal of Wind Engineering and Industrial Aerodynamics,2015,139:16-26.
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[14] JUBAYER C M,HANGAN H.A numerical approach to the investigation of wind loading on an array of ground mounted solar photovoltaic (PV)panels[J].Journal of Wind Engineering and Industrial Aerodynamics,2016,153:60-70.
[15] 建筑结构荷载规范：GB 50009—2012[S].北京：中国建筑工业出版社，2012.
[16] 光伏发电站设计规范：GB 50797—2012[S].北京：中国计划出版社，2012.
Wind tunnel test study on influence of building parapet on wind load characteristics of photovoltaic panel
Abstract: The roof is an important carrier of the photovoltaic panel structure, the roof form and the shapes of the roof attached structures and other factors will affect the wind load characteristics of the roof photovoltaic panel surface, where the parapet is close to the starting area of the incoming wind flow separation from the roof, the location is more sensitive, the influence of the wind load on the panel surface should not be ignored. Based on this, the wind load characteristics of roof photovoltaic panels under two cases of building roof without parapet and with 600 mm high parapet through wind tunnel test were studied, and the wind pressure coefficient of roof photovoltaic panels were given. The research results show that when the roof is not installed with parapet, the windward leading edge corner position and the back row of photovoltaic array are subjected to wind suction. The parapet suppresses the extreme wind suction of the photovoltaic array under the most unfavorable wind angle, and percentage reduction of synthetic mean wind pressure coefficient of the roof photovoltaic panel array reaches 72.5%. In addition, the research results were compared and analyzed with the relevant codes. It is demonstrated that the present code overestimates the surface pressure of the photovoltaic panel with the installing of parapet.
Keywords: building roof; photovoltaic panel; wind tunnel test; parapet; wind pressure coefficient
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