Seismic Performance of Directly Hung Suspended Ceilings with Engineered Perimeter Product

Abstract eng:
Suspended ceilings have sustained major damage during the past earthquakes in the United States and abroad. This damage has caused injuries, has lead to business interruptions, and has alarmed the building occupants. Industry-sponsored earthquake simulation tests were conducted in the 1980’s to investigate this vulnerability. Because of the observed field damage and based on the findings from these tests, the most recent editions of building codes require specific installation measures to mitigate this vulnerability. However, the effect of such measures on the seismic performance of ceilings had not been investigated. Furthermore, the susceptible components, modes of failure, and performance levels had not yet been identified. To investigate these issues, researchers performed seismic qualification and fragility tests to characterize the seismic performance of manufacturer engineering components intended for use at the perimeter.

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