Abstract
AbstractReported frequently in recent earthquakes, failure of the ceiling perimeters in suspended ceiling systems leads to propagation of damage to the rest of the system. Therefore, the need to understand how ceiling systems perform around their perimeters during an earthquake is becoming increasingly important. In this study, a series of component-level experiments was designed at the University of Nevada, Reno to estimate the ceiling-perimeter capacities. Test specimens were constructed from cross tees and main runners, which were then connected to a portion of gypsum–stud partition wall using either pop rivets or seismic clips. The test specimens were subjected to monotonic and cyclic loading to obtain their failure capacities. Then, several fragility curves were developed for ceiling joints based on available experimental data. In addition to the experimental studies, a series of analytical models for ceiling-perimeter joints was developed and calibrated using component experimental data.
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