Z. John Ma，美国田纳西州立大学终身教授。John Ma is a professor, the leader of the University of Tennessee’s TBRL , a faculty of the Department of Civil and Environmental Engineering at the University of Tennessee. He received his Ph.D. from the University of Nebraska – Lincoln in 1998. His research mainly focuses on behavior and design of prestressed concrete bridges, mechanics and applications of high performance concrete and fiber reinforced polymer composites and evaluation of ASR-affected structures. He currently serves as an associate Editor of ASCE Journal of Bridge Engineering and Journal of Structural Engineering.