上海世博文化中心TMD减轻人致振动分析与实测研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (2) : 32-37,1.

论文

上海世博文化中心TMD减轻人致振动分析与实测研究

吕西林; 丁鲲; 施卫星; 翁大根

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Analysis and field test on the EXPO culture center using tmd to reduce human-induced vibration

LU Xi-lin; DING Kun; SHI Wei-xing; WENG Da-gen

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摘要

上海世博文化中心是2010上海世博会永久性场馆之一，其主体结构由沿环向的36榀悬臂长度不一的钢桁架和矩形钢管混凝土内框架组成。结构六层为悬挑钢结构楼盖，易引起人致振动问题。对采用调谐质量阻尼器(TMD)进行人致振动控制的上海世博文化中心进行了大量的计算分析和现场实测。结果表明结构各榀桁架的竖向共振频率处于2.5-3.0Hz之间；当人以2.0Hz的频率正常行走时，结构竖向振动较小，TMD基本无影响；而当人以结构竖向共振频率快速走动或奔跑时，TMD能有效减小结构的竖向振动响应，减振效率约为15%。这对长悬臂空间结构的舒适度问题和采用TMD进行人致振动控制问题的研究具有参考借鉴意义

Abstract

Expo culture center is one of the permanent buildings in Expo 2010 Shanghai. The main structure composes of 36 hoop cantilever steel trusses with different length and inner frames made of rectangle CFST members. The sixth storey steel structure cantilevered floor easily cause human-induced vibration problem. A large amount of analysis and field tests on the Expo culture center which tuned mass dampers were used to reduce human-induced vibration. The results show that the resonance frequencies of each structural axis are between 2.0Hz and 3.5Hz. The vertical vibration of structure is very small and TMD has no influence on reducing vibration when people walk normally in frequency 2.0Hz. When people rapidly walk or run in structural resonance frequency, TMD can reduce structural vertical vibration about 15% effectively. It can be reference for study on serviceability of space structure with long cantilever and human-induced vibration control by using TMD

导出引用

吕西林;丁鲲;施卫星;翁大根. 上海世博文化中心TMD减轻人致振动分析与实测研究[J]. 振动与冲击, 2012, 31(2): 32-37,1

LU Xi-lin;DING Kun;SHI Wei-xing;WENG Da-gen. Analysis and field test on the EXPO culture center using tmd to reduce human-induced vibration[J]. Journal of Vibration and Shock, 2012, 31(2): 32-37,1