JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. AISC 1997 – LRFD Limitations §3. Seismic Design Categories §4. Loads, Load Combinations, and Nominal Strengths §6. Materials §8.Columns §9. Special Moment Frames (SMF) §10. Intermediate Moment Frames (IMF) §11. Ordinary Moment Frames (OMF) §13. Special Concentric Braced Frames (SCBF) §14. Ordinary Concentrically Braced Frames (OCBF) §15. Eccentrically Braced Frames (EBF) FEMA 350 Parent topic: Code Check