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上音歌剧院地铁振动控制
居 炜, 吴宏磊, 周 游
摘 要

(同济大学建筑设计研究院 (集团) 有限公司, 上海 200092)

摘要: 上音歌剧院结构采用独特的阶梯状隔振层布置方式,通过位于三个不同标高处的 124 个钢弹簧隔振支座将核心功能区(包括观众厅、乐池和舞台)与地下室结构弹性连接,大幅降低结构的竖向频率,远离地铁振动的主要频率区段。 地铁振动控制中采用频域分析和时域分析两种方法,对工程隔振效果进行了评价与比较。 结果表明,隔振系统在地铁振动的主要频率区段具有 20dB 以上的减振效果,地铁过车时引起的铅垂向加速度峰值将减小90%以上。 上音歌剧院投入使用前,现场振动实测结果表明,在地铁通过时,北侧舞台最不利部位经隔振后的最大铅垂向振级仅为 48􀆰 8dB,实际振级减小约 20dB,验证了隔振系统的有效性,核心建筑功能得到了充分的保障。

关键词: 上音歌剧院; 地铁振动; 隔振系统; 钢弹簧隔振支座; 振级

中图分类号:TU318,U211. 3,X827 文献标志码:A 文章编号:1002⁃848X(2022)12⁃0086⁃09

 

DOI:10. 19701 / j. jzjg. LS210168

 

Metro vibration control for Shangyin Opera House

JU Wei, WU Honglei, ZHOU You

(Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China)

Abstract: A creative approach of terraced vibration isolation system was utilized in the structure of Shangyin opera house.The core functional part, including the auditorium, orchestra pit and stage, was connected elastically with the basementstructure by 124 steel spring isolation bearings in three different levels. The vertical frequency was greatly reduced and farless than the main frequency range of the metro vibration. For the metro vibration control, frequency domain analysis andtime domain analysis were conducted and the vibration control effect of the system was evaluated and compared. The resultsshow that the vibration isolation system has a vibration reduction of more than 20dB in the main frequency range of themetro vibration, and the peak vertical acceleration caused by metro train passing will be reduced by no less than 90%.Before the opening of the Shangyin Opera House, on⁃site vibration test results indicate that the maximum vertical vibrationlevel of the north stage under the worst condition is only 48􀆰 8dB, with approximate 20dB reduced by the isolation systemduring the metro train passing. Therefore, the effectiveness of the isolation system is verified, and the core architecturalfunction of the building is fully guaranteed.

Keywords: Shangyin Opera House; metro vibration; vibration isolation system; steel spring isolation bearing;vibration level

第一作者:居炜,硕士,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:32jw@ tjad.cn。
 
[引用本文] 居炜,吴宏磊,周游. 上音歌剧院地铁振动控制[ J]. 建筑结构,2022,52( 12):86⁃94. JU Wei,WU Honglei,ZHOU You. Metro vibration control for Shangyin Opera House[J]. Building Structure,2022,52(12):86⁃94.
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