作者机构:[1]School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China, [2]School of Civil & Environmental Engineering, The University of New South Wales, Sydney 2052, Australia
相关基金:Acknowledgments: This study is sponsored by the Natural Science Foundation of China (No. 90715008) and the Flander (Belgium)-China Bilateral Project (No. BIL07/07).