1. PhD Candidate, Dept. of Civil Engineering, Univ. de Sherbrooke, Sherbrooke, PQ, Canada J1K 2R1.
2. Professor, Dept. of Civil Engineering, Univ. de Sherbrooke, Sherbrooke, PQ, Canada J1K 2R1.
3. Design Engineer, Canadian National Railway, Bridges and Structures, 935, De La Gauchetière ouest, Montréal, PQ, Canada H3B 2M9.
4. Adjunct Professor, Dept. of Civil Engineering, Univ. de Sherbrooke, Sherbrooke, PQ, Canada J1K 2R1.