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Performance study on the whole vibration process of a museum induced by metro
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논문 기본 정보

Type
Academic journal
Author
Meng Wang (Beijing Jiaotong University)
Journal
International Association of Structural Engineering And Mechanics Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.55 No.2 KCI Candidated Journals
Published
2015.1
Pages
413 - 434 (22page)

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Performance study on the whole vibration process of a museum induced by metro
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The vibrations caused by metro operation propagate through surrounding soil, further induce secondary vibrations of the nearby underground structures and adjacent buildings. In order to investigate the effects of vibrations caused by metro on use performance of buildings, vibration experiment of Chengdu museum was carried out firstly. Then, the coupling tunnel-soil-structure finite element model was established with software ANSYS detailedly, providing a useful tool for investigating the vibration performances of structures. Furthermore, the dynamic responses and vibration predictions of museum building were obtained respectively by the whole process time-domain analysis and frequency-domain analysis, which were compared with the vibration reference values of museum. Quantitative analyses of the museum building performance were carried out, and the possible tendency and changing laws of vibration level with floors were proposed. Finally, the related vibration isolation measures were compared and discussed. The tests and analysis results show that: The vertical vibration responses almost increased with the increasing of building floors, while weak floors existed for the curve of horizontal vibration; The vertical vibrations were larger than the horizontal vibrations, indicating the vibration performances of building caused by metro were characterized with vertical vibrations; The frequencies of the museum corresponding to the peak vibration levels were around 6~17Hz; The damping effect of structure with 33m-span cantilever on vertical vibration was obvious, however, the damping effect of structure with foundation vibration isolators was not obvious.

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References (31)

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Allen, D. E. / 1999 / ATC Design Guide 1: Minimizing Floor Vibration / Applied Technology Council google schola F.T.K. Au / 2011 / Simulation of vibrations of Ting Kau Bridge due to vehicular loading from measurements / Structural Engineering and Mechanics, An Int＇l Journal 40(4):471~488 dbpia AVIC Geotechnical Engineering institute Co., Ltd / 2009 / Geotechnical Engineering Investigation Report google schola Bruni, S. / 2009 / Train‐induced vibrations on urban metro and tram turnouts / J. Tran. Eng 135(7):397~405 google schola Francois, S. / 2007 / The influence of dynamic soil-structure interaction on traffic induced vibrations in buildings / Soil Dyn. Earthq. Eng 27(7):655~674 google schola

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