1. Graduate Student, Zachry Dept. of Civil Engineering, Texas A&M Univ., 3136 TAMU College Station, TX 77843.
2. Ph.D. Candidate, Zachry Dept. of Civil Engineering, Texas A&M Univ., 3136 TAMU College Station, TX 77843.
3. Associate Professor, Zachry Dept. of Civil Engineering, Texas A&M Univ., 3136 TAMU College Station, TX 77843.