1. Professor, Dept. of Civil Engineering, Colorado State University, Fort Collins, CO 80523.
2. Formerly, Graduate Assistant, Dept. of Civil Engineering, Colorado State Univ., Fort Collins, CO 80523.
3. Former Graduate Assistant, Dept. of Civil Engineering, Colorado State Univ., Fort Collins, CO 80523.
4. Professor and Chair, Institute for Wood Construction, Swiss Federal Inst. of Technology, Laussanne CH1015, Switzerland.