[Xing, Yunheng] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.^[Li, Sheng;Wang, Zhiyuan;Wu, Bo] Univ South China, Sch Architecture, Hengyang 421001, Peoples R China.^[Li, Sheng] Cent South Univ Forestry & Technol, Coll Landscape Architecture, Changsha 410004, Hunan, Peoples R China.^[Liao, Jianjun] Univ South China, Sch Design & Art, Hengyang 421001, Peoples R China.