山地城市交通系统震害预测模型及其应用

英文篇名：Predictive Model for Seismic Damage of Transportation System in Mountain Cities and Its Application
中文刊名：西南交通大学学报
英文刊名：Journal of Southwest Jiaotong University
作者：李英民 ; 王丽萍 ; 刘立平
英文作者：LI Yingmin1 ; 2 ; WANG Liping2 ; LIU Liping2(1.Key Lab of Chinese Education Ministry for Construction and New Technology of Mountain Cities ; Chongqing University ; Chongqing 400045 ; China ; 2.College of Civil Eng. ; Chongqing University ; Chongqing 400045 ; China)
中文关键词：交通系统 ; 震害预测模型 ; 通行概率 ; 连通可靠性
英文关键词：transportation system ; predictive model of seismic damage ; passing probability ; connectivity reliability
出版日期：2009-04-15
机构：重庆大学山地城镇建设与新技术教育部重点实验室;重庆大学土木工程学院;
年：2009
期：02
出版单位：西南交通大学学报

摘要

为了对山地城市交通系统震害进行合理预测,在改进现有震害预测模型的基础上,建立了山地城市交通系统震害预测模型.改进主要依据山地城市道路、地形、建筑物的特点,将路段视为路段单元、桥梁单元、边坡单元和隧道单元串联而成,并考虑了这4种单元之间的失效相关性,修正了路段单元中建筑物倒塌瓦砾量预测模型.用该模型对重庆市主城区交通系统进行了震害预测,给出了不同地震烈度下重庆市主城区路网的连通可靠性评价.
Based on the improvement of the existing predictive models,a predictive model for the seismic damage of transportation systems in mountain cities was established to reasonably predict the seismic damage.The improvement is mainly based on the characters of roads,landforms and buildings in mountain cities.In the improved model,road cell,bridge cell,side slope cell and tunnel cell are in series.Their failure correlation is considered,and the present model of predicting the debris distribution of collapsed buildings in the road cell is improved.The established model was applied to predict the seismic damage of the transportation system in the downtown of Chongqing City,and the relative evaluation of the connectivity reliability of the road networks in the downtown under different seismic intensities was given.

引文

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