大沙河文体中心大跨度悬挂羽毛球馆楼盖竖向振动舒适度分析及减振设计  

Vertical vibration comfort analysis and vibration reduction design of large-span suspended badminton hall floor in Dashahe Cultural and Sports Center

作　　者：汤凯峰 TANG Kaifeng(Zhubo Architectural&Engineering Design Co.,Ltd.,Shenzhen 518040,China)

机构地区：[1]筑博设计股份有限公司,深圳518040

出　　处：《建筑结构》2022年第3期51-56,123,共7页Building Structure

摘　　要：大跨度悬挂结构动力特性复杂,在悬挂楼盖上进行室内体育活动容易产生较大振动。大沙河文体中心在标高39.2m处设置了4榀跨度为58.8m的钢桁架以悬挂58.8m×88.8m的羽毛球馆楼盖;采用SAP2000软件对整体结构进行有限元时程分析得出,羽毛球馆楼盖在有节奏运动荷载激励下,楼盖竖向振动产生的有效最大加速度为0.911m/s^(2),大于《建筑楼盖结构振动舒适度技术标准》(JGJ/T 441—2019)规定的限值0.5m/s^(2);通过增加调频质量阻尼器(TMD)进行减振控制后,楼盖竖向振动产生的有效最大加速度为0.467m/s^(2),减振效果明显,能够满足规范对楼盖舒适度的要求。The dynamic characteristics of the large-span suspension structure are complex, and indoor sports activities on the suspended floor cover are easy to cause large vibration. The Dashahe Cultural and Sports Center set up 4 steel trusses with a span of 58.8 m at the elevation of 39.2 m to suspend the badminton hall with size of 58.8 m×88.8 m. The finite element time history analysis of the overall structure using SAP2000 software shows that the effective maximum acceleration generated by the vertical vibration of the badminton hall floor under the excitation of rhythmic motion load is 0.911 m/s^(2), which is greater than the limit of 0.5 m/s^(2)set in the Technical Standard for Vibration comfort of Building Floor Structures(JGJ/T 441—2019). The effective maximum acceleration generated by vertical vibration of the floor is 0.467 m/s^(2)after vibration reduction control by adding tuned mass damper(TMD), and the vibration reduction effect is obvious, which can meet the requirements of the code for the comfort of the floor.

关 键 词：大沙河文体中心 大跨度钢桁架 悬挂结构 有节奏运动 竖向振动 减振设计 调频质量阻尼器 

分 类 号：TU973[建筑科学—结构工程]