宜兴某学校屋顶操场楼盖振动舒适度分析  

Analysis of Floor Vibration Comfort of a School Roof Playground in Yixing

作　　者：任渊 黎小猴 王炜涛 Ren Yuan;Li Xiaohou;Wang Weitao(Jiangsu Bosen Architectural Design Co.,Ltd.,Wuxi,214000,China)

机构地区：[1]江苏博森建筑设计有限公司,无锡214000

出　　处：《建设科技》2020年第7期76-81,共6页Construction Science and Technology

摘　　要：宜兴某学校屋顶操场楼盖为钢筋混凝土—大跨度型钢混凝土楼盖,局部跨度较大,易产生振动舒适度问题。建立了楼盖结构有限元模型,进行模态分析,得到了楼盖竖向振动自振频率和模态;考虑行走、跑步、广播体操动力荷载,进行时程分析,得到了楼盖竖向振动加速度响应和峰值加速度;选定评价标准,对楼盖振动舒适度进行了评价。分析结果表明,此楼盖结构能满足振动舒适度要求。The floor of the school roof playground in Yixing is RC and long-span SRC floor.Some part of the floor has a long span what easily causes comfort problems of floor vibration.This paper builds the finite element model of the floor structure,conducts modal analysis and obtains the frequency and mode of vertical vibration of the floor.This paper considers dynamic loads such as walking,running,and gymnastics,conducts time history analysis,obtains the acceleration response and peak acceleration of vertical vibration of the floor.This paper also selects evaluation criteria and evaluates the floor vibration comfort.The results show that the floor structure meets the requirements of human comfort of floor vibration.

关 键 词：舒适度 楼盖振动 动力荷载 时程分析 

分 类 号：TU311.3[建筑科学—结构工程]