1. Assistant Professor, School of Civil Engineering, Dalian Univ. of Technology, Dalian 116023, China.
2. Professor, School of Civil Engineering, Dalian Univ. of Technology, Dalian 116023, China (corresponding author).
3. Professor, School of Civil Engineering, Dalian Univ. of Technology, Dalian 116023, China; Professor, School of Civil Engineering, Shenyang Jianzhu Univ., Shenyang 110168, China.