1. Associate Professor, Univ. of Maryland Eastern Shore, Princess Anne, MD 21853.formerly, Assistant Professor, Dept. of Civil Engineering and Construction, North Dakota State Univ., 120D CME Building, Fargo, ND 58105.
2. Graduate Student, Dept. of Civil Engineering and Construction, Bradley Univ., Peoria, IL.
3. Assistant Professor, Civil Engineering and Applied Mechanics Dept., California State Univ., Northridge, Northridge, CA 91330-8347.formerly, Instructor, Dept. of Civil Engineering and Construction, North Dakota State Univ., 120 CME Building, Fargo, ND 58105.