Pressure equalization and wind loads on roof-mounted solar arrays

屋顶太阳能电池阵列的压力均衡和风荷载

• 批准号: 203367-2012
• 负责人: Kopp, Gregory
• 金额: $ 3.28万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=514112
• 关键词: Pressure; equalization; wind; loads; roof

There has been a substantial increase in the quantity of installed roof-mounted photovoltaic (PV) arrays in Canada in the last few years and an almost threefold increase globally in the past decade. Wind is often the governing design load, but currently there are no appropriate provisions in building codes for such loads and there is a great deal of uncertainty about how to handle them. Accurate knowledge of these loads is particularly important for the installation of PV arrays on existing roofs, where there is often limited structural capacity available to withstand the additional weight and ballast of the arrays. It is important to resolve these issues in order to have greater penetration of solar power generation into suburban and urban areas.

在过去的几年里，加拿大安装的屋顶光伏阵列数量大幅增加，在过去十年中全球增长了近三倍。风通常是控制设计荷载，但目前在建筑规范中没有针对此类荷载的适当规定，并且如何处理它们存在很大的不确定性。准确了解这些负载对于在现有屋顶上安装PV阵列特别重要，因为现有屋顶上通常存在有限的结构能力来承受阵列的额外重量和压载。为了让太阳能发电更大程度地渗透到郊区和城市地区，解决这些问题非常重要。