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Strength or force reduction factors for steel buildings: MDOF vs SDOF systems
2017
Journal of Vibroengineering
The nonlinear seismic responses of steel buildings with perimeter moment resisting frames (MRF), modeled as complex 3D MDOF systems, are calculated and the ductility demands, ductility reduction factors and the force reduction factors ( ), are studied. Equivalent 3D models with spatial MRF, two-dimensional models, and equivalent SDOF systems (SD), are also considered. Results indicate that the global and local force reduction factors significantly vary from one structural representation to
doi:10.21595/jve.2016.17124
fatcat:dugtmhtx2zds7pwdhp3d6jq26u