Abstract
FEMA-350 is a recommended criteria of performance-based design for steel structures and published in 2000 as the final result of a research project motivated by damage in steel structures by the Northridge Earthquake. This paper presents an overview of its structural performance evaluation methodology and reviews the statistics in order to know the magnitude of supposed variations. Concerned with deformation capacity of beam rotation improved after the Northridge Earthquake, structural test data are compared with those of connections improved in Japan after the Kobe Earthquake.
