1. P.E.
2. P.E., Members, ASCE
3. Prof. and Dir., Glass Res. and Testing Lab., Dept. of Civ. Engrg., Texas Tech Univ., Box 41023, Lubbock, TX 79409. E-mail: scott.norville @wind.ttu.edu
4. Struct. Engr., Protective Des. Ctr., Omaha Dist. Corps of Engrs., 215 N. 17th St., Omaha, NE 68102-4978. E-mail: ed.j.conrath@usace. army.mil