1. Ph.D. Research Associate, Dept. of Civil Engineering, Univ. of Texas at El Paso, El Paso, TX 79968.
2. Assistant Professor, Dept. of Civil Engineering, Univ. of Texas at El Paso, El Paso, TX 79968 (corresponding author).
3. Associate Professor, Dept. of Civil Engineering, Univ. of Texas at El Paso, El Paso, TX 79968.