Wind tunnel tests for a solar parking shed with a mono-sloped roof with inclination angle of 10°,20° and 30° were conducted with a reduced scale rigid model. The effect laws of inclination angle,parking cars and not parking cars on roof overall shape coefficient,mean wind pressure coefficient,peak wind pressure coefficient and roof’s local block shape coefficient were studied,and these parameters were compared with those in current national codes. The results showed that the upper half roof suffers wind suction action,and the lower half roof suffers wind pressure action; the test values of the most unfavorable overall wing loads are 20% less than those in current national codes; the roof overall mean wind load and each block’s wind load increase with increase in inclination angle,the most unfavorable wind suction occurs at upper eave corner block,and the most unfavorable wind pressure occurs at lower eave corner block; parking cars can increase wind suction on upper half roof by 10%,and decrease wind pressure on lower half roof by 70%.
Key words
Wind tunnel test /
Solar car parking roof /
Mono-sloped roof /
overall shape coefficients /
Block shape coefficients /
Design wind load
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References
[1] Radu A, Axinte E, Theohari C. Steady wind pressures on solar collectors on flat-roofed buildings[J]. Journal of Wind Engineering & Industrial Aerodynamics, 1986, 23:249-258.
[2] Cao J, Yoshida A, Saha P K, et al. Wind loading characteristics of solar arrays mounted on flat roofs[J].Journal of Wind Engineering & Industrial Aerodynamics, 2013, 123(4):214-225.
[3] 李寿科, 李寿英, 陈政清. 太阳电池板风荷载试验研究[J]. 太阳能学报, 2015, 36(8):1884-1889.( Li Shouke,Li Shouying,Chen Zhengqing.Experimental investigation of wind loading of solar panels[J].Acta Energiae Solaris Sinica, 2015, 36(8):1884-1889.(in Chinese))
[4] Kopp G A, Farquhar S, Morrison M J. Aerodynamic mechanisms for wind loads on tilted, roof-mounted, solar arrays[J]. Journal of Wind Engineering & Industrial Aerodynamics, 2012, 111(12):40-52.
[5] 宫博, 李正农, 王莺歌,等. 太阳能定日镜结构风载体型系数风洞试验研究[J]. 湖南大学学报(自科版), 2008, 35(9):6-9..( .Wind tunnel test study on the wind Load shape coefficient of heliostat [J]. Journal of Hunan University(Natural Sciences) 2008,35(9):6-9.(in Chinese))
[6] 马文勇, 孙高健, 刘小兵,等. 太阳能光伏板风荷载分布模型试验研究[J]. 振动与冲击, 2017, 36(7):8-13.(Ma Wenyong,Sun Gaojian etal. Tests for wind load distribution model of solar panels[J].Journal of Vibration and Shock. 2017, 36(7):8-13. (in Chinese))
[7] 中华人民共和国建设部. 建筑结构荷载规范50009-2012[M]. 北京: 建筑结构出版社, 2012:36-50.( Ministry of Construction of Peoples's Republic of China. Load Code for the Design of Building Structures,GB50009-2012.Beijing:China Architecture &Building Press,2012 (in Chinese))
[8] Gumley S J. A parametric study of extreme pressures for the static design of canopy structures[J]. Journal of Wind Engineering & Industrial Aerodynamics, 1984, 16(16):43-56.
[9] Uematsu Y, Stathopoulos T, Iizumi E. Wind loads on free-standing canopy roofs: Part 1 local wind pressures[J]. Journal of Wind Engineering & Industrial Aerodynamics, 2008, 96(6–7):1015-1028.
[10] Uematsu Y, Stathopoulos T, Iizumi E. Wind loads on free-standing canopy roofs: Part 2 overall wind forces[J]. Journal of Wind Engineering & Industrial Aerodynamics, 2008, 96(6):1029-1042.
[11] 杨金焕. 固定式光伏方阵最佳倾角的分析[J]. 太阳能学报, 1993(4):344-347.(Yang Jinghuan.Analysis of optimum tilted angle for fixed photovoltaic arrays[J].Acta Energiae Solaris Sinica, 1993(4):344-347(in Chinese)
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