1. Professor, Dept. of Civil Engineering, Shandong Jianzhu Univ., Shandong 250101, China; Professor, Key Lab of Building Structural Retrofitting and Underground Space Engineering, Ministry of Education, Shandong Jianzhu Univ., Shandong 250101, China.
2. Graduate Student, Dept. of Civil Engineering, Shandong Jianzhu Univ., Shandong 250101, China.
3. Associate Professor, Dept. of Civil Engineering, Shandong Jianzhu Univ., Shandong 250101, China (corresponding author).