公铁同层桥梁防眩设施及防眩效果研究  

Research on Effectiveness of Anti-Glare Facilities for Road-Rail Same-Story Bridges

作　　者：张迅[1,2] 徐艺涵 孔德睿 陈柯儿 李小珍[1,2] 王德志[3] 崔苗苗[3] ZHANG Xun;XU Yihan;KONG Derui;CHEN Keer;LI Xiaozhen;WANG Dezhi;CUI Miaomiao(School of Civil Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China;National Key Laboratory of Bridge Intelligent and Green Construction,Southwest Jiaotong University,Chengdu Sichuan 611756,China;China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan Hubei 430063,China)

机构地区：[1]西南交通大学土木工程学院,四川成都610031 [2]西南交通大学桥梁智能与绿色建造全国重点实验室,四川成都611756 [3]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《中国铁道科学》2024年第4期48-56,共9页China Railway Science

基　　金：国家自然科学基金资助项目(51978580,51778534);中国国家铁路集团有限公司科技研究开发计划课题(N2023G040)。

摘　　要：以某公铁同层桥梁为背景,以道路失能眩光造成的阈值增量为评价指标,基于DIALux光学仿真分析软件,结合现场试验进行公铁同层桥梁防眩设施研究,并从屏障结构和列车光源2个层面开展影响屏障防眩效果的参数分析。结果表明:屏障高度和遮光角需大于某一阈值才能满足防眩要求,本案例为3.0 m和12°;当屏障开孔率较大或者光源灯柱角度和光通量较大时,需要进一步校核眩光指标,以免其漏光严重;灯柱角度和屏障材料基本不影响眩光水平;影响眩光水平的主要因素为屏障高度、遮光角和列车灯光通量。Taking a road-rail same-story bridge as the background,this paper carries out the optical simulation analysis based on DIALux by making the threshold increment of road disability glare as the glare evaluation index,then the anti-glare research on the anti-glare facilities is operated combined with field tests.Furthermore,parameter analysis is done to research the influence factors of anti-glare effect through barrier’s structural design and train front light.Results show that the barrier height and shielding angle need to be greater than a certain threshold in order to meet the anti-glare requirements,in this case,they are 3.0 m and 12°.When the aperture ratio of the barrier increases or the beam angle and luminous flux of the luminaire are larger,the glare indicator needs to be further calibrated to avoid serious light leakage.The beam angle of the luminaire and the type of barrier material have essentially no effect on the level of glare.Main factors influencing glare level are barrier height、shielding angle and train front light’s luminous flux.

关 键 词：公铁同层桥梁 防眩屏障 道路失能眩光阈值增量 光通量 防眩效果 DIALux仿真 

分 类 号：U448.121[建筑科学—桥梁与隧道工程]