1. Professor, Dept. of Building Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, China.
2. Graduate Research Assistant, Dept. of Building Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, China (corresponding author).
3. Professor, Dept. of Wood Science, Univ. of British Columbia, 2424 Main Mall, Vancouver, BC, Canada V6T 1Z4.
4. Graduate Research Assistant, Dept. of Building Engineering, Tongji Univ., 1239 Siping Rd., Shanghai 200092, China.