Refereed Papers in Journals

  • Perea, T., Leon, R. T., Hajjar, J. F., and Denavit, M. D. (2013). “Full-Scale Tests of Slender Concrete-Filled Tubes: Interaction Behavior,” Journal of Structural Engineering, ASCE. (submitted for publication)
  • Perea, T., Leon, R. T., Hajjar, J. F., and Denavit, M. D. (2013). “Full-Scale Tests of Slender Concrete-Filled Tubes: Axial Behavior,” Journal of Structural Engineering, ASCE, 139(7), 1249-1262. (doi)
  • Denavit, M. D. and Hajjar, J. F. (2012). “Nonlinear Seismic Analysis of Circular Concrete-Filled Steel Tube Members and Frames,” Journal of Structural Engineering, ASCE, (in press). (doi)

Papers in Conference Proceedings

  • Denavit, M. D., Hajjar, J. F., Perea, T., and Leon, R. T. (2013). “Seismic Safety and United States Design Practice for Steel-Concrete Composite Frame Structures,” Proceedings of the 10th International Conference on Urban Earthquake Engineering, Center for Urban Earthquake Engineering, Tokyo Institute of Technology, Tokyo, Japan. (Paper) (Presentation)
  • Denavit, M. D., Hajjar, J. F., and Leon, R. T. (2012). “Stability Analysis and Design of Steel-Concrete Composite Columns,” Proceedings of the Annual Stability Conference, Grapevine, Texas, April 18-21, 2012, Structural Stability Research Council, Rolla, Missouri. (Paper) (Presentation)
  • Hajjar, J. F., Denavit, M. D., Perea, T., and Leon, R. T. (2012). “Seismic Design and Stability Assessment of Composite Framing Systems,” Proceedings of the 9th Conference or Urban Earthquake Engineering, Tokyo, Japan, March 6-8, 2012, Tokyo Institute of Technology, Tokyo, Japan. (Paper) (Presentation)
  • Leon, R. T., Perea, T., Hajjar, J. F., and Denavit, M. D. (2011). “Concrete-filled Tubes Columns and Beam-Columns: A Database for the AISC 2005 and 2010 Specifications,” Festschrift Gerhard Hanswille, Wuppertal, Germany, October 1-3, 2011, IKIB, Wuppertal, Germany, pp. 203-212. (Paper)
  • Hajjar, J. F. and Denavit, M. D. (2011). “New Trends for Seismic Engineering of Steel and Composite Structures,” Third International Symposium on Innovative Design of Steel Structures, Singapore and Hong Kong, June 28-30, 2011. (Paper) (Presentation)
  • Denavit, M. D., Hajjar, J. F., and Leon, R. T. (2011). “Seismic Behavior of Steel Reinforced Concrete Beam-Columns and Frames,” Proceedings of the ASCE/SEI Structures Congress 2011, Las Vegas, Nevada, April 14-16, 2011, ASCE, Reston, Virginia. (Paper) (Poster)
  • Perea, T., Leon, R. T., Denavit, M., and Hajjar, J. F. (2010). “Experimental Tests on Cyclic Beam-Column Interaction Strength of Concrete-Filled Steel Tubes,” Proceedings of the 9th National Conference on Earthquake Engineering, Rathje, E. M. and Atkinson, G. A. (eds.), Toronto, Canada, July 12-14, 2010, Earthquake Engineering Research Institute, Oakland, California. (Paper)
  • Denavit, M. D., Hajjar, J. F., Perea, T., and Leon, R. T. (2010). “Cyclic Evolution of Damage and Beam-column Interaction Strength of Concrete-Filled Steel Tube Beam-Columns,” Proceedings of the 9th National Conference on Earthquake Engineering, Rathje, E. M. and Atkinson, G. A. (eds.), Toronto, Canada, July 12-14, 2010, Earthquake Engineering Research Institute, Oakland, California. (Paper)
  • Leon, R. T., Perea, T., Hajjar, J. F., and Denavit, M. D. (2009). “Determination of Buckling Loads from Triaxial Load Tests of Slender Concrete-Filled Steel Tube Beam-Columns,” Proceedings of the Third International Conference on Advances in Experimental Structural Engineering, San Francisco, California, October 15-16, 2009. (Paper)
  • Denavit, M. D., Hajjar, J. F., Perea, T. and Leon, R. T. (2009). “Seismic Multi-Axial Behavior of Concrete-Filled Steel Tube Beam-Columns,” Proceedings of the Asian-Pacific Network of Centers for Earthquake Engineering Research, Urbana, Illinois, August 13-14, 2009. (Paper) (Presentation)
  • Perea, T. and Leon, R. T. (2008). “Behavior of Composite CFT Beam-Columns Based On Nonlinear Fiber Element Analysis,” Proceedings of the 6th International Conference on Composite Construction in Steel and Concrete VI, Tabernash, Colorado, USA, July 20-24, 2008. (Paper)

Technical Reports

  • Denavit, M. D. (2012). “Characterization of Behavior of Steel-Concrete Composite Members and Frames with Applications for Design.” Ph.D. Dissertation, University of Illinois at Urbana-Champaign, Urbana, Illinois. (Available Here)
  • Perea, T. (2010). “Analytical and Experimental Study on Slender Concrete-Filled Steel Tube Columns and Beam-Columns,” Ph.D. dissertation, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia, December. (PDF)
  • Denavit, M. D. and Hajjar, J. F. (2010). “Nonlinear Seismic Analysis of Circular Concrete-Filled Steel Tube Members and Frames,” Report No. NSEL-023, Newmark Structural Laboratory Report Series (ISSN 1940-9826), Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, March. (Available Here)
  • Gourley, B. C., Tort, C., Denavit, M. D., Schiller, P. H., and Hajjar, J. F. (2008). “A Synopsis of Studies of the Monotonic and Cyclic Behavior of Concrete-Filled Steel Tube Beam-Columns,” Report No. NSEL-008, Newmark Structural Laboratory Report Series (ISSN 1940-9826), Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, April. (Available Here)

Presentations

  • Hajjar, J. F., Denavit, M., Leon, R. T., and Perea, T. (2008). "Cyclic Behavior of Composite Beam-Columns," part of "New Developments in Earthquake Engineering of Steel and Composite Structures," presented by J. F. Hajjar, North American Steel Construction Conference, Nashville, Tennessee, April 3, 2008 (Presentation)
  • Perea, T., Leon, R. T., Hajjar, J. F., and Denavit, M. (2008). "Developments in Composite Column Design," presented by R. T. Leon, North American Steel Construction Conference, Nashville, Tennessee, April 2, 2008 (Presentation)

Original Proposal

  • Leon, R. T. and Hajjar, J. F. (2006). "NEESR-II: System Behavior Factors for Composite and Mixed Structural Systems," Proposal submitted to the National Science Foundation, Arlington, Virginia, January 25, 2006 (Proposal)

Recent and Upcoming Presentations

  • Roberto Leon and Jerome Hajjar together with Larry Griffis from Walter P. Moore presented "Behavior and Design of Concrete-Filled Beam-Columns", a webinar in the Research to Practice Webinar Series co-produced by the Network for Earthquake Engineering Simulation (NEES) and the Earthquake Engineering Research Institute (EERI)
  • The project team will be at the composite construction conference (CCVII) in Palm Cove, North Queensland, Australia presenting results from this research