(1 兰州理工大学土木工程学院， 兰州 730050；2 甘肃省建筑设计研究院， 兰州 730030)

［摘要］对于悬吊楼盖，其悬吊端竖向刚度较弱，人群荷载激励下易发生较大振动。以甘肃省体育馆13.500m标高悬吊楼盖为研究对象，在主体结构完工后，首先，测试了楼盖在环境脉动激励作用下的振动模态；其次，参照楼盖的振动模态实测了楼盖在不同激励下包括单人行走、多人行走、多人跳跃、多人跑步、自由运动等工况下的加速度反应；最后根据楼盖的建筑使用功能，以峰值加速度为指标评估该悬吊楼盖的振动舒适度。结果表明，悬吊楼盖在人行荷载作用下存在较为显著的振动响应和一定程度的振动舒适度问题，人致激励的类型和路线对楼盖的振动舒适度有显著的影响。 

［关键词］悬吊楼盖；振动模态；人群荷载激励；人致振动；峰值加速度；舒适度；动力测试 

中图分类号：TU311-3 文献标识码：A文章编号：1002-848X(2021)20-0103-07

Field test and research on human-induced vibration comfort of suspension floor of Gansu Gymnasium 

RUI  Jia1,2,  LIU  Kaifang1,  ZHANG  Jutao2,  DU  Yongfeng1,  ZHU  Qiankun1 

(1 School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050， China；2 Gansu Institute of Architectural Design & Research Institute, Lanzhou 730030， China) 

Abstract: For suspended floors, the vertical stiffness of the suspended ends is weak, and large vibrations are prone to occur under the excitation of crowd loads. Taking the suspended floor of the Gansu Gymnasium at 13.500m elevation as the research object, after the main structure was completed, the vibration modes of the floor under the action of environmental pulsation were tested firstly. Then, the acceleration response of the floor under different excitation conditions including single-person walking, multi-person walking, multi-person jumping, multi-person running, and free movement were measured with reference to the vibration modes of the floor. Finally, according to the applying functions in construction of the floor, the peak acceleration was used as an index to evaluate the vibration comfort of the suspended floor. The results show that the suspension floor has significant vibration response and a certain degree of vibration comfort under pedestrian loads. The type and route of human-induced excitation have a significant impact on the vibration comfort of the floor.  

Keywords:suspended floor； vibration mode； crowd load excitation； human-induced vibration； peak acceleration； comfort； dynamic test

作者简介:芮佳，博士，教授级高级工程师，一级注册结构工程师，Email:Richard800910@163.com；通信作者：刘开放，硕士，Email:1550820476@qq.com。