公铁近距离并行布置眩光效应分析及防眩策略
CSTR:
作者:
作者单位:

1.同济大学 土木工程学院,上海 200092;2.同济大学 交通运输工程学院,上海 201804

作者简介:

陈艾荣(1963—),男,教授,博士生导师,工学博士,主要研究方向为桥梁结构设计理论。 E-mail:a.chen@tongji.edu.cn

通讯作者:

马如进(1978—),男,副研究员,博士生导师,工学博士,主要研究方向为桥梁结构设计理论。 E-mail:rjma@tongji.edu.cn

中图分类号:

U491.5+3;U447;U24

基金项目:

交通运输部公路工程行业标准制修订项目(JTG?202015)


Glare Effect Analysis and Glare-resistance Strategy of Parallelly Arranged Highway and Railway in Close Range
Author:
Affiliation:

1.College of Civil Engineering, Tongji University, Shanghai 200092, China;2.College of Transportation Engineering, Tongji University, Shanghai 201804, China

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • | |
  • 文章评论
    摘要:

    根据失能型眩光的环境光强对比度原理,提出了基于三维空间关系模型的失能眩光分析流程。以国内某斜拉桁架桥下层公路铁路同层布置为工程背景进行了案例分析。当公铁近距离布置不采取防眩措施时,铁路列车前照灯产生的眩光效应严重,远超相关规范的阈值要求。最后,提出了可装配、立体化的防眩策略,并根据案例给出具体的防眩方案。结果表明,防眩策略能有效减少铁路前照灯对公路侧司机的眩光影响。

    Abstract:

    According to the contrast principle of ambient light intensity for disability glare, a process of disability glare analysis based on three-dimensional spatial relationship model is proposed. Taking same-layer arranged highway and railway on the lower deck of a cable-stayed truss bridge as the engineering background, a case study is carried out. When no glare-resistance measures are taken for parallelly arranged highway and railway in close range, the glare effect produced by headlamps of railway train is serious, which is far beyond the threshold requirements of the relevant codes. Finally, an assemblable and three-dimensional glare-resistance strategy is proposed, and a detailed glare-resistance scheme is given in the case study. The results show that the glare-resistance strategy proposed can effectively reduce the glare effect of railway train headlamps to the drivers on highway.

    图1 失能眩光分析流程Fig.1 Flow chart of disablity glare analysis
    图2 某公铁同层桁架桥横断面布置(单位:mm)Fig.2 Cross section layout of truss bridge with same-layer arranged highway and railway (unit: mm)
    图3 基础光场模型Fig.3 Basic light field model
    图4 动态运行中失能眩光模拟Fig.4 Disability glare simulation in dynamic operation
    图5 模拟工况示意图Fig.5 Schematic diagram of simulation conditions
    图6 无防眩措施时Ti与铁路和汽车相对距离的关系Fig.6 Relationship between Ti and relative distance of railway and vehicles without glare-resistance measures
    图7 防眩措施Fig.7 Glare-resistance measures
    图8 最不利工况下有防眩措施时Ti与铁路列车前照灯布置位置的关系Fig.8 Relationship between Ti and the position of railway lamps under the most unfavorable condition with glare-resistance measures
    参考文献
    相似文献
    引证文献
引用本文

陈艾荣,曹哲,马如进,崔传杰,涂辉招.公铁近距离并行布置眩光效应分析及防眩策略[J].同济大学学报(自然科学版),2021,49(2):211~217

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2020-04-24
  • 在线发布日期: 2021-03-18
文章二维码