玻璃幕墙眩光污染模拟分析

Simulation and Analysis of Glare Pollution from Glass Curtain Wall

玻璃幕墙是城市建筑中常见的装饰和围护结构,但在阳光照射下,会产生不舒适眩光甚至是强烈的失能眩光,因此,眩光污染是对城市道路交通安全的重要威胁之一。对眩光的监测主要是针对眩光亮度、方位和环境光亮度分布的监测。采用彩色CCD相机测量光环境亮度的分布,并结合计算机图像处理技术,对采集的图片进行亮度提取、处理计算,最后得出眩光评价值。通过实验室模拟玻璃幕墙眩光实验,对不同中性密度滤光片下的测量结果进行对比,从而选择恰当中性密度滤光片对实际建筑眩光测量,得出不同时间的眩光测量值。通过一系列的实验结论,将有助于眩光的污染防治和城市交通的安全防护。

Glass curtain wall is widely used as decoration and cladding of building structure in urban architecture. But, in the sun, it will easily cause disability glare, which is one of the most important threats to road traffic. Monitoring the glare is mainly aimed at the glare brightness, the distribution of glare source and environmental brightness. In this paper, through the measurement of brightness distribution of the light environment using a color CCD camera combined with computer image processing technology, the glare impact was evaluated using brightness extraction and computation on images. Through laboratory simulation of the glass curtain wall glare experiment, measurements under different neutral density filters were compared. To evaluate actual building glare, glare measurements at different times were obtained. The conclusion through a series of experiments will improve the of city traffic. glaring pollution control and safety protection