1. School of Civil Engineering, Central South Univ., Changsha, CN (Corresponding author), e-mail: chenianggood@163.com
2. School of Civil Engineering, Central South Univ., Changsha, CN, e-mail: jsyang@csu.edu.cn
3. School of Civil Engineering, Central South Univ., Changsha, CN, e-mail: zhangxm@csu.edu.cn
4. School of Civil Engineering, Central South Univ., Changsha, CN, e-mail: sywang@csu.edu.cn
5. School of Civil Engineering, Central South Univ., Changsha, CN, e-mail: 253644082@qq.com