Shake table tests of suspended ceilings to simulate the observed damage in the M s7.0 Lushan earthquake, China

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• 作者：Duozhi Wang ; Junwu Dai ; Zhe Qu…
• 刊名：Earthquake Engineering and Engineering Vibration
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：15
• 期：2
• 页码：239-249
• 全文大小：1,765 KB
• 刊物类别：Engineering
• 刊物主题：Vibration, Dynamical Systems and Control
  Chinese Library of Science
  
• 出版者：Institute of Engineering Mechanics (IEM), China Earthquake Administration
• ISSN：1993-503X
• 卷排序：15

文摘

Severe damage to suspended ceilings of metal grids and lay-in panels was observed in public buildings during the 2013 M_s7.0 Lushan earthquake in China. Over the past several years, suspended ceilings have been widely used practice in public buildings throughout China, including government offices, schools and hospitals. To investigate the damage mechanism of suspended ceilings, a series of three-dimensional shake table tests was conducted to reproduce the observed damage. A full-scale reinforced concrete frame was constructed as the testing frame for the ceiling, which was single-story and infilled with brick masonry walls to represent the local construction of low-rise buildings. In general, the ceiling in the tests exhibited similar damage phenomena as the field observations, such as higher vulnerability of perimeter elements and extensive damage to the cross runners. However, it exhibited lower fragility in terms of peak ground/roof accelerations at the initiation of damage. Further investigations are needed to clarify the reasons for this behavior.Keywordssuspended ceilingLushan earthquakeWenchuan earthquakeshake table testwall closureacoustic mineral fiber panel