摘要
为研究公路和轨道交通荷载共同作用下隧道的动态响应,本文引入微观交通流模型中的元胞自动机模型来模拟公路车流荷载,利用多体动力学模型来模拟轨道车辆荷载,以上海某公铁两用隧道为例建立隧道-土体系统的三维动力有限元模型,对公路和轨道交通载荷单独作用及共同作用时的隧道动力响应进行分析,获得了公铁两用隧道的动力响应规律,为其设计提供参考。
In order to study the dynamic response of a tunnel under traffic flow loads and train loads, a cellular automation model was introduced to simulate road traffic flow loads, and a multi-body dynamic model was used to simulate train loads. Taking a combined rail-eum-road tunnel in Shanghai as an example, a three dimensional dynamic FE model of a tunnel-soil system was established and the dynamic response properties of the tunnel were obtained under different loads, they provided a reference for design of a combined rail-cum-road tunnel.
出处
《振动与冲击》
EI
CSCD
北大核心
2012年第21期46-49,72,共5页
Journal of Vibration and Shock
基金
国家自然科学基金(11072150
61073088)
机械系统与振动国家重点实验室课题(MSVMS201107)
