1. Professor, Dept. of Civil & Environmental Engineering, 368 CB, Brigham Young Univ., Provo, UT 84602.
2. Assistant Professor, Dept. of Civil & Environmental Engineering, 368 CB, Brigham Young Univ., Provo, UT 84602.
3. Principal, Lane Engineering, P.O. Box 1695, Queen Creek, AZ 85242.
4. Associate Professor, Dept. of Structural Engineering, 9500 Gilman Dr., Univ. of California-San Diego, La Jolla, CA 92093-0085.