• Voting Member of AISC Task Committee 9 (Seismic Design), 2006-Present

• ACI Faculty Network, 2001-Present

• Member, ASCE Committee on Composite Construction, 1990-Present

• Member, ACI ASCE Committee 352 (Joints and Connections in Monolithic Concrete Structures), 1989-Present

• Member, ACI Committee 335 (Composite and Hybrid Structures), 1994-Present

• Chairman, ASCE Composite Construction Committee, January 2001-2004

• Chairman, ACI Committee 335 (Composite and Hybrid Structures), March 1996-March 2000

Associate Editor

• ASCE Journal of Structural Engineering, Committee on Concrete and Masonry, 10/1/94 through 12/30/96

Advisory/Steering Committees

• The 4th International Conference on Steel and Composite Structures (ICSCS'2010), Sydney, Australia, July 21-23, 2010 (International Scientific Committee)
  
• The 9th International Conference on Steel Concrete Composite and Hybrid Structures, Leeds, United Kingdom, July 8-10, 2009 (International Scientific Committee)
  

• The 6th Composite Construction Conference (CCVI), Copper Mountain, CO, July 20-25, 2008 (Technical Advisory Committee)

• The 6th International Conference on Steel and Aluminum Structures 2007 (ICSAS'07), Oxford, UK, July 1-4, 2007 (International Advisory Committee)

• The First International Conference on Steel & Composite Structures (ICSCS'01), Seoul, Korea, June 14-16, 2001 (International Advisory Committee)

• Composite Construction IV, Alberta, Canada, May 28-June 2, 2000 (Steering Committee)

• The 6th ASCCS International Conference on Steel-Concrete Composite Structures, Los Angeles, California, March 22-24, 2000 (Steering Committee)