某大跨度室内运动场楼盖舒适度分析与设计

Comfort analysis and design of a large-span indoor playground floor

人们在楼盖上活动时,楼盖的振动会对人们的心理造成影响。当楼盖跨度较大,或有较大悬挑时,楼盖的竖向振动容易造成人员心理不舒适。国内相关规范普遍采用竖向自振频率与竖向振动最大加速度两个指标来评判结构的舒适度。采用Midas gen通用有限元结构软件,对南宁某大跨度室内运动场中舒适度两个指标进行分析计算,结果表明该结构满足舒适度要求。最后,分析了不同因素对舒适度的影响,得出了一些有益的结论。

When people move on the floor,the vibration of the floor will have an impact on people's psychology.When the floor span is large or there is a large overhang,the vertical vibration of the floor is easy to cause psychological discomfort.Relevant domestic codes generally use the two indexes of vertical natural vibration frequency and vertical vibration maximum acceleration to evaluate the comfort of the structure.In this paper,Midas gen general finite element structure software is used to calculate the two indexes of comfort in a long-span indoor playground in Nanning.The results show that the structure meets the requirements of comfort.Finally,the paper also analyzes the influence of different factors on comfort,and draws some beneficial conclusions.