1. Department of Civil Engineering, Kyungnam University, Changwon 51767, Republic of Korea
2. UB E&C Co., Ltd., 42 Beolmal-ro 50 beon-gil, Bundang-gu, Seongnam 13503, Republic of Korea
3. Department of Civil Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
4. Advanced Railroad Civil Engineering Division, Korea Railroad Research Institute, 176 Cheoldobangmulgwan-ro, Uiwang 16105, Republic of Korea