摘要
城市公路交通系统在城市基础设施中发挥着极其重要的作用,其一旦遭到破坏,城市正常交通秩序将会受到严重影响。因此,城市公路交通系统必须具备良好的抗震可靠度。采用震害指数和通行概率作为抗震可靠度指标,对其进行评价。首先,对被选择的城市主要道路的震害指数进行计算;然后,对城市公路交通系统的通行概率进行计算;最后,将计算结果作为整个城市交通系统抗震可靠度分析的依据,并将其与城市地理信息系统结合,直观地从城市地形图中划分出城市公路交通系统的薄弱环节。
Urban highway traffic system plays a very important role in urban infrastructure, once it is destroyed, normal traffic order of city will be seriously affected. Therefore, urban highway traffic system must have perfect seismic reliability. This paper adopts earthquake damage index an as seismic reliability indices to evaluate it. First, the paper calculates the earthquake d passing probability damage index of the selected main urban roads; second, the paper calculates the passing probability of urban highway traffic system; and finally the paper takes the calculated results as the basis of analysis for seismic reliability of the whole urban traffic system, and combines them with urban geographic information system to mark out the weak links in urban highway traffic system from urban topographical map visually.
出处
《公路交通技术》
2016年第1期118-121,共4页
Technology of Highway and Transport
基金
四川省高校重点实验室开放基金项目(2014QYJ06
2014QZY06)
四川省教育厅资助项目(15SB0122
16ZB0246)
关键词
公路交通系统
通行概率
抗震可靠性
地理信息系统
highway traffic system
passing probability
seismic reliability
geographic information system
