A FIBER BEAM-COLUMN ELEMENT FOR SEISMIC RESPONSE ANALYSIS OF REINFORCED CONCRETE STRUCTURES by Fabio F. Taucer Research Assistant Enrico Spacone Doctoral Student and Filip C. Filippou Associate Professor Department of Civil Engineering A Report on Research Conducted under Grant RTA-59M848 from the California Department of Transportation and Grant ECE -8657525 from the National Science Foundation Report No. UCB/EERC-91/17 Earthquake Engineering Research Center College of Engineering University of California, Berkeley December 1991