基金The authors gratefully thank the National Natural Science Foundation of China (51308070, 51408070, and 51378080), the National Basic Research Program of China (2015CB057702), the Key Discipline Fund of Creative Project of Bridge and Tunnel Engineering (13ZDXK04) from the Changsha University of Science and Technology, the Open Fund of the Hunan Province University Key Laboratory of Bridge Engineering (13KA04), and the Applied Basic Research Program of Shanxi Province for their support,