1. Professor, School of Architecture and Civil Engineering, Xiamen Univ., Xiamen, Fujian 361005, China; Dept. of Civil Engineering, Catholic Univ. of America, Washington, DC 20064 (corresponding author).
2. Designer, Chinese Ministry of Communication Port Design Corporation, Shanghai 200070, China.
3. Ph.D. Candidate, School of Transportation, Southeast Univ., Nanjing 210096, China.