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首页> 外文会议>Structural Engineers Association of California and Structural Engineers Association of New Mexico Convention 2012 >Seismic Considerations and Evaluation Approach for 'Isolated' Rooftop PV Arrays
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Seismic Considerations and Evaluation Approach for 'Isolated' Rooftop PV Arrays

机译：“隔离”屋顶光伏阵列的地震考虑和评估方法

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摘要

Recently, some photovoltaic (PV) equipment manufacturers have developed and implemented non-anchored or "isolated" PV array support on relatively flat rooftops on large commercial and institutional buildings. This technique saves significant time and expense over conventional PV array installation methods, and has the potential to decrease the risk of roof membrane failure. However, concerns regarding possible seismically-induced horizontal movement and wind uplift of PV arrays surround the introduction of this new technique, which currently is required to be considered as an "alternative means of compliance" for rooftop PV array implementation. The isolated approach explicitly relies upon friction between a PV array and its supporting roof membrane, which in principle is similar to the use of friction in a seismic isolation system. This paper describes the key seismic considerations related to this innovative method of PV installation on flat or near-flat building rooftops, and presents a rational approach for the evaluation of PV array seismic sliding displacements and determination of corresponding gaps for seismic movement.
机译：最近，一些光伏（PV）设备制造商已经在大型商业和公共建筑的相对平坦的屋顶上开发并实施了非锚定或“隔离”光伏阵列支撑。与传统的光伏阵列安装方法相比，该技术节省了大量时间和费用，并具有降低屋顶膜失效风险的潜力。但是，有关可能引起地震的PV阵列水平移动和风向抬升的担忧围绕着这项新技术的引入，当前需要将其视为屋顶PV阵列实施的“替代性顺应手段”。隔离方法明确地依赖于PV阵列与其支撑屋顶膜之间的摩擦，这在原理上类似于在地震隔离系统中使用摩擦。本文介绍了与这种在平坦或近于平坦的建筑物屋顶上安装光伏电池的创新方法相关的主要地震注意事项，并提出了一种合理的方法来评估光伏阵列的地震滑动位移并确定相应的地震运动间隙。

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