Testing of Ceiling Components Under Earthquakes

Abstract eng:
The failure of suspended ceiling has been one of the most widely reported types of nonstructural damage in building structures. Suspended ceilings have been vulnerable to damage from earthquake, sustaining panel loss and grid failure in moderate earthquake, even in absence of major structural damage. Also, the seismic damage of suspended ceilings has given the largest economic loss and function loss to prohibit the building from remaining operational after an earthquake and it sometimes may endanger the life or safety of its occupants. This study presents the vibration behavior and seismic capacity of typical suspended ceiling systems in Korea, M-bar system ceiling and T-bar system ceiling with the static tests and the dynamic tests. To investigate the capacity of suspended ceiling components, the static tests were performed in three stages; component level, joint level and module level. Shaking table tests were performed to investigate the dynamic behavior of the suspended ceilings with horizontal excitations using data of El-Centro earthquake and Mexico City earthquake. The dynamic performance, such as acceleration response, displacement response, deformation, natural period were evaluated in the experimental program.

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