建筑结构学报2011，Vol.32Issue(11)：177-182,6.
大跨度楼面人群荷载作用响应分析
Analysis of vibration responses of long-span floor under crowd loads
张家华 1高承勇 1秦卫红 2惠卓 2林俊军2
作者信息
- 1. 上海现代建筑设计（集团）有限公司,上海200041
- 2. 东南大学混凝土与预应力混凝土教育部重点实验室,江苏南京210096
- 折叠
摘要
Abstract
This paper studied the vibration response of the long-span floor under crowd loads by selecting the model of a steel-concrete composite floor slab as the research objective.With the help of the FEM software ANSYS,the human-induced vibration responses were calculated and compared,considering different cases of load arrangement,damping ratio,floor boundary conditions,length-width ratio of floor and so on.And the characteristics of the human-induced vibration responses of long-span floor were researched.The results indicate that the unfavorable live load distribution is that the crowd is on the middle plate of the floor.The less the aspect ratio of floor slab is,the less the peak response value is.The response of the floor slab under moving crowd load is bigger than that under stationary stepping load.The stronger the boundary of the floor slab is restrained,the less the vibration response of floor is.The damping ratio is favorable for reducing the vibration response of structure and so on.关键词
大跨度楼板/人群荷载/有限元分析/振动响应Key words
long-span floor/crowd load/FEA/vibration response分类
建筑与水利引用本文复制引用
张家华,高承勇,秦卫红,惠卓,林俊军..大跨度楼面人群荷载作用响应分析[J].建筑结构学报,2011,32(11):177-182,6.
