(筑博设计股份有限公司, 深圳 518040)

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 / s2,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 / s2;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 / s2,减振效果明显,能够满足规范对楼盖舒适度的要求.

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

中图分类号:TU973 文献标志码:A 文章编号:1002-848X(2022)03-0051-06

DOI:10. 19701 / j. jzjg. LS210002

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

TANG Kaifeng

( Zhubo Architectural & Engineering Design Co., Ltd., Shenzhen 518040, China)

Abstract:The dynamic characteristics of the large-span suspension structure are complex, and indoor sports activities onthe suspended floor cover are easy to cause large vibration. The Dashahe Cultural and Sports Center set up 4 steel trusseswith a span of 58. 8m at the elevation of 39. 2m to suspend the badminton hall with size of 58. 8m × 88. 8m. The finiteelement time history analysis of the overall structure using SAP2000 software shows that the effective maximum accelerationgenerated by the vertical vibration of the badminton hall floor under the excitation of rhythmic motion load is 0. 911m / s2,which is greater than the limit of 0. 5m / s2set 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. 467m / s2aftervibration reduction control by adding tuned mass damper ( TMD) , and the vibration reduction effect is obvious, which canmeet the requirements of the code for the comfort of the floor.

Keywords:Dashahe Cultural and Sports Center; large span steel truss; suspended structure; rhythmic motion; verticalvibration; vibration reduction design; TMD

第一作者:汤凯峰,学士,高级工程师,一级注册结构工程师,主要从事建筑结构设计,Email:492056478@ qq. com.

[引用本文] 汤凯峰. 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[ J]. 建筑结构,2022,52( 3):51-56,123. TANG Kaifeng. Vertical vibration comfort analysis and vibration reduction design of large-spansuspended badminton hall floor in Dashahe Cultural and Sports Center[J]. Building Structure,2022,52(3):51-56,123.