1. State Key Laboratory of Coastal and Offshore Engineering, Dalian Univ. of Technology, Dalian 116024, China (corresponding author).
2. Road Bureau of Traffic Dept. of Shandong Province, Jinan 250002, China.
3. State Key Laboratory of Coastal and Offshore Engineering, Dalian Univ. of Technology, Dalian 116024, China.
4. Institute of Architectural Engineering, Qingdao Agricultural Univ., Qingdao 266109, China.