About the author  ⁄ John E. Breen, P.E.

John E. Breen, P.E. holds the Nasser I Al-Rashid Chair in Civil Engineering at The University of Texas at Austin. He is a former Director of the Ferguson Structural Engineering Laboratory. He has had extensive research experience in buildings and bridges, and is a past chair of the ACI Building Code Committee. Dr. Breen can be reached via email at jbreen@mail.utexas.edu.

STRUCTURE magazine