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建筑女兒墻對光伏板風(fēng)載特性影響的風(fēng)洞試驗(yàn)研究
張學(xué)森1 , 李 丹2 , 吳香國3,4 , 張洪福5 , 劉婷婷5
摘 要

(1 中國廣核新能源控股有限公司, 北京 100070; 2 保定建業(yè)集團(tuán)有限公司, 保定 071000;3 福州大學(xué)土木工程學(xué)院, 福州 350108; 4 哈爾濱工業(yè)大學(xué)結(jié)構(gòu)工程災(zāi)變與控制教育部重點(diǎn)實(shí)驗(yàn)室, 哈爾濱 150090; 5 東北林業(yè)大學(xué)土木工程學(xué)院, 哈爾濱 150040)

摘要: 屋頂是光伏板結(jié)構(gòu)的重要載體,屋頂形式以及屋頂附屬結(jié)構(gòu)形狀等因素會影響屋頂光伏板表面風(fēng)載特性,其中女兒墻靠近屋頂來流風(fēng)流動分離起始區(qū)域,位置較為敏感,對板面風(fēng)荷載的影響不容忽視。 基于此,通過風(fēng)洞試驗(yàn)研究了無女兒墻建筑屋頂、有 600mm 高女兒墻屋頂兩種情況下的屋頂光伏板風(fēng)載特性,給出了屋頂光伏板風(fēng)壓系數(shù)。 研究結(jié)果表明,屋頂不設(shè)置女兒墻時,光伏陣列的迎風(fēng)前緣角部位置和后排受風(fēng)吸力;女兒墻對最不利風(fēng)向角下光伏陣列的極值風(fēng)吸力起到抑制作用,屋頂光伏板陣列的合成平均風(fēng)壓系數(shù)降低百分率達(dá)到 72?? 5%。 此外,將研究結(jié)果與相關(guān)規(guī)范進(jìn)行了對比分析,表明在屋頂設(shè)置女兒墻情況下,規(guī)范高估了光伏板表面風(fēng)壓。

關(guān)鍵詞: 建筑屋頂; 光伏板; 風(fēng)洞試驗(yàn); 女兒墻; 風(fēng)壓系數(shù)

中圖分類號:TU312 文獻(xiàn)標(biāo)志碼:A 文章編號:1002?848X(2022)14?0115?09

 

DOI:10?? 19701 / j?? jzjg?? YG220091

 

Wind tunnel test study on influence of building parapet on wind load characteristics of photovoltaic panel

ZHANG Xuesen1, LI Dan2, WU Xiangguo3,4, ZHANG Hongfu5, LIU Tingting5

(1 CGN New Holdings Co. , Ltd. , Beijing 100070, China; 2 Baoding Construction Industry Groups. , Ltd. , Baoding 071000, China;3 College of Civil Engineering, Fuzhou University, Fuzhou 350108, China; 4 Key Lab of Structures Dynamic Behavior andControl of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, China; 5 School of Civil Engineering,Northeast Forest University, Harbin 150040, China)

Abstract: The roof is an important carrier of the photovoltaic panel structure, the roof form and the shapes of the roofattached structures and other factors will affect the wind load characteristics of the roof photovoltaic panel surface, where theparapet is close to the starting area of the incoming wind flow separation from the roof, the location is more sensitive, theinfluence of the wind load on the panel surface should not be ignored. Based on this, the wind load characteristics of roofphotovoltaic panels under two cases of building roof without parapet and with 600mm high parapet through wind tunnel testwere studied, and the wind pressure coefficient of roof photovoltaic panels were given. The research results show that whenthe roof is not installed with parapet, the windward leading edge corner position and the back row of photovoltaic array aresubjected to wind suction. The parapet suppresses the extreme wind suction of the photovoltaic array under the mostunfavorable wind angle, and percentage reduction of synthetic mean wind pressure coefficient of the roof photovoltaic panelarray reaches 72?? 5%. In addition, the research results were compared and analyzed with the relevant codes. It isdemonstrated 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

∗哈爾濱科技創(chuàng)新人才引導(dǎo)資金項(xiàng)目(2011RFLXG014),廈門市建設(shè)科技計劃項(xiàng)目(XJK2020?1?9)。
第一作者:張學(xué)森,碩士,高級工程師,主要從事土木工程、結(jié)構(gòu)風(fēng)工程方面的研究,Email: zhangxuesen99@ 126. com。
通信作者:吳香國,博士,教授,主要從事新型結(jié)構(gòu)及新材料方面的研究, Email: wuxiangguo@ hit. edu. cn。
 
[引用本文] 張學(xué)森,李丹,吳香國,等. 建筑女兒墻對光伏板風(fēng)載特性影響的風(fēng)洞試驗(yàn)研究[J]. 建筑結(jié)構(gòu),2022,52(14):115?123. ZHANG Xuesen,LI Dan,WU Xiangguo,et al. Wind tunnel test study on influence of building parapeton wind load characteristics of photovoltaic panel[J]. Building Structure,2022,52(14):115?123.
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