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Collapse Prevention Seismic Performance Assessment of New Special Concentrically Braced Frames using ASCE 41



Matthew S. Speicher, John L. Harris


This paper presents the results of a collapse prevention seismic performance assessment using ASCE 41-06 for six special concentrically braced frames designed in accordance with the 2012 International Building Code. The correlation between ASCE 7-10 and ASCE 41-06 is investigated in an effort to examine the seismic performance anticipated by the two standards. Three archetype buildings (4-, 8-, and 16-story) with SCBFs along one principal direction are designed for seismic effects: (1) once using the equivalent lateral force (ELF) procedure and (2) a second time using the response spectrum analysis (RSA) procedure. Performance assessments of the frames are conducted using four analysis procedures, static and dynamic analyses performed under both linear and nonlinear analysis regimes. Linear analysis results indicate minor performance issues in the columns and no issues in the braces. In contrast, the nonlinear analysis results indicate that the braces consistently struggle to meet the assessment criteria. The contributing factors to the performance issues are investigated and recommendations are made on how to alter the performance outcome.
Engineering Structures


Performance-based seismic design, special concentrically braced frame, performance assessment, ASCE 41, steel structures
Created November 1, 2016, Updated November 10, 2018