【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.更多还原

【Abstract】 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.更多还原