1. Structural Timber Research Engineer, Dept. of Civil and Natural Resources Engineering, Univ. of Canterbury, Private Bag 8400, 8140 Christchurch, New Zealand (corresponding author).
2. Associate Professor, Dept. of Civil and Natural Resources Engineering, Univ. of Canterbury, Private Bag 8400, 8140 Christchurch, New Zealand.
3. Professor, Dept. of Civil and Natural Resources Engineering, Univ. of Canterbury, Private Bag 8400, 8140 Christchurch, New Zealand.