中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2019, Vol. 38 ›› Issue (02): 126-132.DOI: 10.3969/j.issn.1674-0696.2019.02.18

• 交通运输工程 • 上一篇    下一篇

基于实测交通数据的城市桥梁怠速车辆拥堵荷载模型研究

李天华1,赵信2,张可佳1,田震欧2,白文英1   

  1. (1. 新疆城建试验检测有限公司,新疆 乌鲁木齐 830000; 2. 重庆交通大学 土木工程学院,重庆 400074)
  • 收稿日期:2017-11-02 修回日期:2017-12-19 出版日期:2019-02-22 发布日期:2019-02-22
  • 作者简介:李天华(1976—),女,新疆乌鲁木齐人,高级工程师,主要从事桥梁检测、损伤和加固方面的研究。E-mail: 921410572@qq.com。 通信作者:赵信(1992—),男,四川成都人,硕士研究生,主要从事桥梁振动方面的研究。E-mail: 1042603383@qq.com。

Load Model of Vehicles Idling Congestion on Urban Bridge Based on Measured Traffic Data

LI Tianhua1, ZHAO Xin2, ZHANG Kejia1, TIAN Zhenou2,BAI Wenying1   

  1. (1. Xinjiang Urban Construction Testing Co., Ltd.,Urumqi 830000, Xinjiang, P. R. China; 2. School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074,P. R. China)
  • Received:2017-11-02 Revised:2017-12-19 Online:2019-02-22 Published:2019-02-22

摘要: 为更准确地获取城市桥梁怠速车辆的荷载谱和拥堵荷载模型,提出了一种经济可行的车辆拥堵观测方法和拥堵荷载数据读取手段。采用此法在乌鲁 木齐市的某高架桥上采集获取的3个月实地车辆拥堵荷载数据库中,识别了80种具体车型并将其归类为3类车型即小汽车和中、大型客车。记录的车辆拥堵 荷载参数信息有车型(车长、车宽、轴距、轴重)、车-桥距、车间轴距,并对这些参数样本进行统计分析从而获得各参数的统计特征值,在此基础上建立 了乌市城市桥梁3种典型车辆荷载谱和7种典型的城市桥梁怠速车辆拥堵荷载模型,为今后研究怠速车辆拥堵对城市桥梁的作用效应奠定了基础。

关键词: 交通工程, 车辆拥堵, 实测交通数据, 荷载模型, 核密度估计

Abstract: An economical and feasible observation method and data reading means of traffic congestion were proposed for more accurate acquisition of load spectrum and load model of vehicles idling congestion on urban bridges. In 3-month field vehicle congestion load database collected from a viaduct in Urumqi,80 specific types of vehicles were identified and classified into three major types(cars, medium bus and large bus) by the proposed method. The recorded vehiclecongestion load parameters involved vehicle type (length, width, wheelbase and axle load), vehicle-bridge distances and vehicle wheelbase.The statistical eigenvalues of these parameters were obtained by statistical analysis of the above parameter samples.On this basis, 3 kinds of typical vehicle load spectra of urban bridges in Urumqi and 7 kinds of typical load models of vehicles idling congestion on urban bridges were established, which laid a foundation for future research on the effect of vehicles idling congestion on urban bridges.

Key words: traffic engineering, traffic congestion, measured traffic data, load model, kernel density estimation

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