项目名称： 综合交通枢纽诱发环境振动激励、传播和形成机制研究

项目编号： No.51478184

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 建筑环境与结构工程学科

项目作者： 雷晓燕

作者单位： 华东交通大学

项目金额： 85万元

中文摘要： 综合交通枢纽是集高铁、普铁、轨道交通、公共交通等多种运输方式为一体的新型大型基础设施。随着我国城市化进程的快速推进，综合交通枢纽进入了一个快速发展期。但由此而引起的环境振动问题也日益突出。本课题拟采用理论分析、数值计算和现场测试相结合的方法，建立全局混合交通工具-枢纽结构-大地-周边建筑群，和局部列车-轨道-隧道-枢纽结构及公共汽车-道路-枢纽结构耦合模型，探索基于子结构法、有限元并行算法，及有限元与边界元耦合法求解大型结构动力响应的有效数值方法，研究中低频范围（200Hz以内）综合交通枢纽诱发环境振动激励、传播和形成机制，分析综合交通枢纽关键结构局部振动特性、频谱响应、共振机理及影响因素，研究综合交通枢纽环境振动与各种交通工具的相关性。在此基础上提出综合交通枢纽诱发环境振动预测方法。研究成果对于新建综合交通枢纽结构设计和振动预测，对于既有综合交通枢纽振动控制，具有重要的指导作用。

中文关键词： 综合交通枢纽；环境振动；振动预测；振动控制；轨道交通

英文摘要： Comprehensive transport junction is a large scale and a new type of infrastructure which is composed of various kinds of transportation means such as high speed railway, conversional railway, urban mass transit and public transportation. With the rapid promotion of national urbanization, construction of the comprehensive transport junction is entered into a period of fast development. However, problem of environmental vibration induced by the comprehensive transport junction has been increasingly standing out. By means of theoretical analysis, numerical computation and site test, a model for analysis of the whole coupling system composed with diversified transport vehicles, junction structure, ground and neighboring buildings, a model for analysis of the local coupling system composed with train, tunnel and junction structure, and a model for analysis of the local coupling system composed with buses, road and junction structure, are developed. Effective numerical algorithm is investigated for solving dynamic responses of the large structure based on the sub-structure method, the finite element parallel scheme, and the coupling technique of the finite elements with the boundary elements. Environmental vibration stimulation, transmission and generation mechanism induced by the comprehensive transport junction are studied in the medium and low frequency domain (less than 200Hz). Local vibration characteristics, frequency responses, resonance mechanism and influencing factors in the key structure of the comprehensive transport junction are analyzed. Relationship between the environmental vibration of the comprehensive transport junction and the various kinds of transportation means are investigated. Based on above researches, method for prediction of the environmental vibration induced by the comprehensive transport junction will be presented. The research result will presents an important guidance to structure design and vibration prediction of the new comprehensive transport junction under construction, and to vibration control of the existing comprehensive transport junction.

英文关键词： comprehensive transport junction;environmental vibration;vibration prediction;vibration control;mass transit