[Zhang, Xuan;Shen, Qing-Qing;Li, Zhong-Yi;Luo, Ying-She] Cent South Univ Forestry & Technol, Hunan Prov Key Lab Engn Rheol, Changsha 410004, Hunan, Peoples R China.^[Tang, Song-Hua] Cent S Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China.