1. Graduate Research Assistant, Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, 209 Pine Building, 1304 N. Pine Street, Rolla, MO 65409-0030.
2. Professor and Robert W. Abbett Distinguished Chair in Civil Engineering, Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, 328 Butler Carlton Hall, 1401 N. Pine Street, Rolla, MO 65409-0030 (corresponding author).
3. Graduate Research Assistant, Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, 328 Butler Carlton Hall, 1401 N. Pine Street, Rolla, MO 65409-0030.
4. Senior Bridge Engineer, Office of Earthquake Engineering, California Dept. of Transportation, 1801 30th St., Sacramento, CA 95816.
5. Associate Professor and Benavides Faculty Scholar Dept. of Civil, Architectural and Environmental Engineering, Missouri Univ. of Science and Technology, 328 Butler Carlton Hall, 1401 N. Pine Street, Rolla, MO 65409-0030.
6. Assistant Professor, Dept. of Engineering, PO Box 465, 68151-44316 Lorestan Univ., Lorestan, Iran.