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Steel and Composite Structures   Volume 32, Number 6, September25 2019, pages 807-819
DOI: https://doi.org/10.12989/scs.2019.32.6.807
 
Shaking table tests on seismic response of backdrop metal ceilings
Tie G. Zhou, Shuai S. Wei, Xiang Zhao, Le W. Ma, Yi M. Yuan and Zheng Luo

 
Abstract     [Buy Article]
    In recent earthquakes, the failure of ceiling systems has been one of the most widely reported damage and the major cause of functionality interruption in some buildings. In an effort to mitigate this damage, some scholars have studied a series of ceiling systems including plaster ceilings and mineral wool ceilings. But few studies have involved the backdrop metal ceiling used in some important constructions with higher rigidity and frequency such as the main control area of nuclear power plants. Therefore, in order to evaluate its seismic performance, a full-scale backdrop metal ceiling system, including steel runners and metal panels, was designed, fabricated and installed in a steel frame in this study. And the backdrop metal ceiling system with two perimeter attachments variants was tested: (i) the ends of the runners were connected with the angle steel to form an effective lateral constraint around the backdrop metal ceiling, (ii) the perimeter attachments of the main runner were retained, but the perimeter attachments of the cross runner were removed. In the experiments, different damage of the backdrop metal ceiling system was observed in detail under various earthquakes. Results showed that the backdrop metal ceiling had good integrity and excellent seismic performance. And the perimeter attachments of the cross runner had an adverse effect on the seismic performance of the backdrop metal ceiling under earthquakes. Meanwhile, a series of seismic construction measures and several suggestions that need to be paid attention were proposed in the text so that the backdrop metal ceiling can be better applied in the main control area of nuclear power plants and other important engineering projects.
 
Key Words
    nuclear power plant; backdrop metal ceiling system; shaking table test; seismic design; seismic performance
 
Address
(1) Tie G. Zhou, Shuai S. Wei, Xiang Zhao, Yi M. Yuan, Zheng Luo:
School of Civil Engineering, Xi'an University of Architecture & Technology, Shaanxi, China;
(2) Le W. Ma
Key Lab of Structure Engineering and Earthquake Resistance, Ministry of Education (XAUAT), China.
 

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