A series of experiments are underway at the University of Nevada, Reno to investigate the seismic behavior of ceiling-piping-partition nonstructural systems.
The objectives of these experiments are:
The test-bed consists of a two-story, two-bay by one-bay steel framing system with concrete floor slabs, designed to incorporate various nonstructural system configurations .
To accommodate large-scale realistic specimens, the test-bed is 60 ft long, 11.5 ft wide and 24.5 ft high.
It is mounted longitudinally over three bi-axial shake tables at the University of Nevada NEES facility.
It should be noted that for safety and re-usability, the main load-carrying elements (beams, columns and connections) of the test-bed were designed to remain linear at all times. However, the overall seismic response can include that of an inelastic system mainly due to controlled yielding of braces.
The proposed experiments consist of two parts.
Considering the fact that ceiling systems are sensitive to acceleration, all of the configurations will be tested in the linear structure. After that, some configurations, which are more vulnerable to drift, will be used in the nonlinear (yielding) structure system to evaluate the effects of large drifts on their responses and the interactions between them.`
The NEES@University of Nevada, Reno equipment site is funded in part by the Geoge E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Program of the National Earthquake Hazards Reduction Program (NEHRP) of the National Science Foundation (NSF) under Award Number CMMI-0927178.