The findings from these tests suggest that the current ASCE-41-13 nonlinear component models do not adequately simulate the steel MRF component behavior. Seismic Rehabilitation of Existing Buildings (ASCE/SEI 41-06) and Evaluation of Earthquake Damaged. As part of the ATC-114 project, new modeling recommendations are proposed for several structural steel components of new and existing MRFs including, steel beams, columns, the beam-to-column web panel zone, column bases and column splices. Concrete and Masonry Wall Buildings, Basic Procedures. These recommendations are based on a consistent methodology that takes advantage of unique experimental data as well as insights from detailed finite element analyses. Downloaded from by New York University on 05/28/15. Dritsos 15 compared ASCE 41-06 Supplement 1, FEMA 356 and the. For each structural component of interest a set of equations is developed to predict their first-cycle envelope and monotonic backbone curves that can be directly used in nonlinear frame analysis. Seismic Evaluation and Retrofit of Existing Buildings, ASCE/SEI 41-13. The proposed equations also include information related to the associated modeling uncertainty of each of the input model parameters.
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