Sang-Hyun Kim received his Ph.D. degree in Civil Engineering in 2019 from Ajou University, South Korea. His doctoral research focused on predicting the behavior of prestressed concrete structures, such as prestressing losses using fiber optic sensors. He has been a researcher at the Advanced Composites Research Center at the Korea Institute of Civil Engineering and Building Technology (KICT) since 2019. His current research is strengthening deteriorated bridges using FRP materials and prestressing technology.