摘要
为了评价隧道遮光棚投影光斑的眩光舒适性,文章利用评价照明场所眩光程度的统一眩光值(UGR),通过分析遮光棚投影光斑的眩光影响,建立了隧道遮光棚眩光舒适度的定量评价方法,计算了等间距遮光棚投影光斑的统一眩光值,分析了不同光斑宽度、亮度与统一眩光值的关系。研究结果表明:在洞口遮光段的明亮环境下,遮光棚投影光斑明区域的亮度和宽度越小,UGR值越小,舒适度越好;遮光棚投影光斑明区域的亮度和宽度越大,UGR值越大,舒适度越差;亮度和宽度比值达到一定时,UGR值大于22,不舒适眩光较大,影响驾驶员的行车舒适性。最后提出了隧道遮光棚的设计建议。
In order to evaluate the discomfort glare of the light spot which is caused by the tunnel sunshade,the glare influence of the projected sunshade light spot is analyzed,a quantitative method for evaluating the glare com⁃fort of tunnel sunshades is established,the UGR of the projected light spot of sunshades with equal grilling distance is calculated,the relationship among light spot width,luminance and UGR are analyzed using UGR which is to evalu⁃ate the glare degree in lighting places.The results show that at the tunnel access zone,the smaller the luminance,the width of the bright area of the sunshade light spot and the UGR,the better the comfort,and vice versa;if the lu⁃minance and the width are more than a certain value and UGR is larger than 22,the discomfort glare is large and it affects the driving comfort.Finally a proposal for the design of sunshades is proposed.
作者
徐宇
郑晅
李雪
刘浩学
XU Yu;ZHENG Xuan;LI Xue;LIU Haoxue(School of Automobile,Chang′an University,Xi′an 710064;School of Electronic Control,Chang′an University,Xi′an 710064)
出处
《现代隧道技术》
EI
CSCD
北大核心
2020年第1期120-124,共5页
Modern Tunnelling Technology
基金
国家自然科学基金项目(51578074)
中央高校基本科研资助项目(300102328404)
陕西省交通运输厅交通科研项目(16-19K)
