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) ›› 2011, Vol. 30 ›› Issue (6): 1375-1378.DOI: 10.3969/j.issn.1674-0696.2011.06.27

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基于Monte Carlo法的多车道公路桥梁车流模拟

程 高1 ,刘永健1 ,张俊光1 ,姚志刚2   

  1. 1.长安大学公路学院,陕西西安710064;2.长安大学经济与管理学院,陕西西安710064
  • 收稿日期:2011-04-13 修回日期:2011-07-12 出版日期:2011-12-15 发布日期:2015-01-22
  • 作者简介:程高(1988—),男,河南泌阳人,硕士研究生,主要从事钢桥与组合结构桥梁方面的研究。E-mail:chenggaocg@163.com。
  • 基金资助:
    高等学校博士学科点专项科研基金项目(20090205110002);江西省交通运输厅重点科技项目(2010C00003)

Traffic Flow Simulation of Multi-lane Highway Bridge Based on Monte Carlo Method

CHENG Gao1 ,LIU Yong-jian1 ,ZHANG Jun-guang1 ,YAO Zhi-gang2   

  1. 1.School of Highway,Chang’an University,Xi’an 710064,Shaanxi,China; 2.School of Economics& Management,Chang’an University,Xi’an 710064,Shaanxi,China)
  • Received:2011-04-13 Revised:2011-07-12 Online:2011-12-15 Published:2015-01-22

摘要: 在分析实测车辆数据的基础上,确定了模型车辆、车重、车头时距等交通特征的分布类型及参数。采用Monte Carlo法进行随机抽样,自编MATLAB程序,对自由车流进行模拟,得到车重、轴重在桥梁上的纵横向分布及其随时 间变化情况;讨论了车辆占用车道不均匀系数的3种不同情况,发现轴重在桥上均呈多峰分布,峰值相近,但出现频 率差异较大。

关键词: 公路桥梁, 车流模拟, Monte Carlo法, 不均匀系数

Abstract: Through analyzing vehicles’measurement data,the distribution and parameters of traffic characteristics such as mode1 vehicles.vehicle weight and time headway etc.are determined.Samples are stochastically selected by the Monte Carlo method.and the MATI.AB is also program med.Finally,the free trafic flow is simulated,by which the vertical and horizontal distribution of the vehicle weight and axle load on bridge,and their changing conditions with time are obtained.In addition.three situations of lane coefficients of uniform ity are alSO discussed.The resuh of discussion iS that the axle load iS of multi.peak distribution.which has close peak values but different frequency.

Key words: highway bridge, simulation of trafic flow, Monte Carlo method, coefficients of uniformity

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