空间框架式客运车站振动舒适度分析  

Vibration serviceability analysis of space frame passenger station

作　　者：许暮迪 张辉[2] 花雨萌 谢伟平[2] XU Mudi;ZHANG Hui;HUA Yumeng;XIE Weiping(Service of Logistics Support,Wuhan University of Technology,Wuhan 430070,China;Service of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学后勤保障处,湖北武汉430070 [2]武汉理工大学土木工程与建筑学院,湖北武汉430070

出　　处：《铁道科学与工程学报》2020年第10期2635-2641,共7页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(51178365)。

摘　　要：新型空间框架式客运车站集人员候车、办公和汽车到、发站功能于一体,导致了较为严重的振动舒适度问题。以某空间框架式客运站为工程背景,基于现场实测数据,建立7自由度多刚体车辆模型以及结构有限元模型;研究结构的车致振动响应规律,并基于振动舒适度对此类建筑的设计及运营提出建议。研究结果表明:此类工程的建设应考虑振动舒适度问题,设计楼板频率应避开车致振动激励频率;振动沿水平向衰减较慢,沿竖向先迅速衰减后趋于稳定,建筑功能分区时应尽量将行车区域规划于建筑底层,并避免同层规划办公区域;随着车速增加,结构动力响应增大,车站运营时应控制车辆在建筑物内的车速。The new type of space frame passenger station integrates the functions of waiting,office and car arrival and departure stations,resulting in more serious vibration serviceability issues.In this paper,a space frame passenger station was used as the engineering background.Based on field measured data,a 7-degree-of-freedom multi-rigid-body vehicle model and a structural finite element model were established.The vehicle-induced vibration response of the structure was studied.Suggestions were made for the design and operation of the building.The research results show that:the construction of such projects should consider vibration serviceability,and the design floor frequency should avoid the vibration excitation frequency caused by driving;the vibration decays slowly in the horizontal direction,and decays rapidly in the vertical direction and then stabilizes.The driving area should be planned on the ground floor of the building as much as possible,and the planning of the office area on the same floor should be avoided;as the vehicle speed increases,the structural dynamic response increases,and the speed of vehicles in the buildings should be controlled during station operation.

关 键 词：振动舒适度 空间框架结构 车致振动 车板耦合 有限元模拟 

分 类 号：TU311.3[建筑科学—结构工程]