作者机构:[1]School of Civil Engineering, Tianjin University, Tianjin 300072, China, [2]Department of Mechanical Engineering, The University ofHong Kong, Hong Kong, China
相关基金:Supported by National Natural Science Foundation of China (No. 50809045 and No. 40776045), National Basic Research Program of China ( "973" Program) (No. 2007CB714101), Ministry of Education's New Century Elitist Project of China.