[1] Univ Calgary, Dept Civil Engn, Schulich Sch Engn, Calgary, AB T2N 1N4, Canada
[2] Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China
[3] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
[4] Hong Kong Baptist Univ, Dept Geog, Kowloon Tong, Hong Kong, Peoples R China
[5] Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China
[6] Shanghai Univ, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R China