【作者】 赵铁军；

【导师】 梁冰； 赵永刚；

【作者基本信息】 辽宁工程技术大学 ， 建筑与土木工程， 2004， 硕士

【摘要】 自上世纪50年代以来，世界铁路产业一直处于大发展，随后高速铁路的出现对传统铁路的设计、施工和养护维修提出了新的挑战，在许多方面深化和改变了传统的设计观念或思想。尤其是路桥过渡段的存在有两方面的问题，一是受到列车荷载影响较大的范围内（基床以上部分）线路结构抵抗变形能力差异，即轨道综合模量（刚度）平顺过渡的问题；二是人工结构的刚性桥台与土工结构的柔性路基间工后沉降差引起轨面弯折的限值问题。这两个方面的问题都会对高速列车的运行产生影响。国内外对路桥过渡段进行技术处理的基本原则是一致的，处理方案也大同小异。但有关过渡段的结构设计及技术条件（标准）与车辆性能、线路标准、设计速度等的关系 却很难从一般的资料和交流中了解到。本文力求以车辆、线路系统力学为基础，进行高速铁路路桥过渡段轨道动力学性能的理论分析，研究各种不平顺因素对列车运行的影响规律，建立了高速列车与路桥过渡段相互作用力学分析模型，开发数值仿真软件，对不同轨下基础轨道连接中具有典型意义的路桥过渡段的动力学性能，就各种不同工况条件，进行了大量的计算机仿真计算、综合分析和性能评价。更多还原

【Abstract】 Railway industry of world keep developing science 1950’s,then high speed railway challenge the design, construction and maintaining of traditional railway, many traditional design concepts have been changed. Transition of railway and bridge has two main problems. one is that different lines have different ability of resisting distortion in area of trial load, which was known that problem of smooth transition of stiffness, the other is that differential settlement between artificial structure and earth structure cause bending of railway.The two problems have effect on train moving. The principle of processing transition of railway and bridge is same in world, but it is difficult to find relationship between design standard of transition , vehicle performance, line standard, design speed and so on form documentation and data reports.Based on mechanics, the paper analyzed dynamic performance of transition of high speed railway, studied various rough elements which is effective to train moving, built mathematical model of interaction of train and transition of high speed railway and developed numerical simulation software. In various different work conditions, we did great quantity of numerical simulation, comprehensive analysis and performance analysis.更多还原