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NEESR-SG: Self-Centering Damage-Free Seismic-Resistant Steel Frame Systems SC-MRF High-Level DBE/Median MCE Hybrid Simulation
The RTMD facility will be performing a high level DBE/median level MCE hybrid simulation on October 23, 2008, beginning at 11am, EDT.
Please visit the project webpage and the NEEScentral activities sites for more details.
The earthquake input for this simulation will produce a response between the high-level (median plus one standard deviation) design basis earthquake (DBE) response and the median-level maximum considered earthquake (MCE) response. The input ground motion is the Canoga Park record from the 1994 Northridge event, scaled by 1.275. This record was used previously in a hybrid simulation of a 4 story, 2 bay concrete-filled-steel-tube column MRF. The purpose of this simulation is to compare the performances between the two MRFs. Yielding is expected in the first-story columns of the SC-MRF at the base and no other damage is expected. The roof drift will be approximately 4.0% radians. The structure is expected to self-center (without significant residual drift) during this simulation.
The 4-story, 2-bay SC-MRF test structure has been subjected to numerous previous laboratory tests, including several median-level frequently occurring earthquake (i.e., FOE, with 50% probability of occurrence in 50 years) hybrid simulations, two low-level DBE hybrid simulations, one median-level DBE hybrid simulation, and one high-level DBE hybrid simulation. From these previous laboratory tests, the test structure has no notable damage or residual drift.
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