[1] School of Civil Engineering, Chongqing University, Chongqing,400045, China
[2] Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education, Chongqing,400045, China
[3] College of Civil Engineering, Chang'an University, Xi'an,Shannxi,710061, China
[4] Department of Civil and Environmental Engineering, University of Waterloo, Waterloo,ON,N2L 3G1, Canada