- 摘 要
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(1 上海建筑设计研究院有限公司, 上海 200041; 2 上海建筑空间结构工程技术研究中心,上海 200041)
[摘要]上海天文馆局部存在40m长大悬挑区域,易产生人致振动问题。通过对结构在步行激励荷载作用下的计算,采用TMD阻尼器对大悬挑区域进行振动控制,有效地降低了人致振动加速度峰值,减振效率约为59%。对存在大悬挑结构形式的空间结构的人致振动问题研究具有一定参考意义。
[关键词]上海天文馆; 大悬挑; 人致振动; 调谐质量阻尼器
中图分类号:TU318, TU393-3 文献标识码:A文章编号:1002-848X(2018)03-0042-03
Analysis for human-induced vibration reduction with TMD in Shanghai Planetarium
Li Yaming1,2, Jia Shuizhong1,2, Zhu Hua1,2, Li Ruixiong1,2
(1 Shanghai Institute of Architectural Design and Research Co., Ltd., Shanghai 200041, China; 2 Shanghai Engineering Research Center of Spatial Structures, Shanghai 200041, China)
Abstract:In Shanghai Planetarium, there is a 40m-long cantilever area which easily causes human-induced vibration problem. By the analysis and calculation for the structure under the influence of pedestrian excitation, tuned mass dampers (TMDs) were used in the area to reduce the vibration. The peak of the human-induced vibration acceleration was effectively reduced by about 59%. The result could be a reference for the study on human-induced vibration control of spatial structures with long cantilever area.
Keywords:Shanghai Planetarium; long cantilever; human-induced vibration; tuned mass damper
* 上海市科学技术委员会课题《上海天文馆工程建设关键技术研究与应用》(15dz1207900)。
作者简介:李亚明,本科,教授级高级工程师,Email:liym@siadr.com.cn。