高铁站房大跨楼盖结构随机人群荷载效应及其MTMD减振控制研究

项目名称： 高铁站房大跨楼盖结构随机人群荷载效应及其MTMD减振控制研究

项目编号： No.51278106

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 张志强

作者单位： 东南大学

项目金额： 80万元

中文摘要： 随着高速铁路和客运专线的快速发展，新型高速铁路站房具有更轻更柔、空间跨度大、阻尼比低和结构体系复杂等特点，使得大跨楼盖结构在人群活动下容易产生较大的动力响应，特别是候车厅的人体舒适度问题变得越来越引起人们的关注。本项目主要研究内容包括：1、进行随机人群活动荷载的现场监测和试验，通过对监测数据的统计和归纳，构造符合高速铁路站房特点的随机人群活动行为的荷载模型；2、建立"人-站房结构"系统一体化的分析模型和进行站房结构在随机人群荷载下的振动响应的高效分析方法，研究各种因素对结构最大加速度响应的影响规律；3、研制开发高效可调型悬吊式TMD；4、建立人-站房结构-MTMD减振体系的分析、优化和简化设计方法；5、通过结构振动响应的现场监测，验证分析方法的正确性。本项目的实施，为随机人群荷载作用下新型站房结构的振动分析和设计提供理论研究基础，并促进消能减振控制技术的进一步发展和推广应用。

中文关键词： 高铁站房；人体舒适度；随机人群荷载；MTMD；振动控制

英文摘要： With the rapid development of the high-speed railway and the passenger dedicated lines, the new high-speed railway station structures tend to be lighter and slenderer. With long spans, and lower damping ratios, the long-span floor systems are prone to large dynamic responses, In particular, the human comfort issue has been brought into attention. The project is composed of the following parts: 1. Conduct on-site monitoring and testing on crowd-induced stochastic loads on the floor systems. By statistical analysis of the collected data, model of crowd-induced stochastic loads will be generated based on the characteristics of the high-speed railway station structures. 2. Establish the integrated models of human-station structure systems, and conduct the dynamic analysis for the vibration response histories of the floor systems under human-induced loads. The effects of several factors on the peak acceleration responses will be investigated. 3. Develop effective adjustable suspended Tuned Mass Damper (TMD). 4. Establish the analyzing, optimizing, and simplified designing method of the human-station structure-TMD system. 5. Inspect and verify the analyzing method by on-site monitoring the vibration responses of the floor structures. The goal of this project is to provide the analysis and design theories and procedure

英文关键词： high-speed stations；human comfort；crowd-induced stochastic excitations；MTMD；vibration control