In this Study cable tension of existing cable-stayed bridge is measured by non-contact laser vibrometer, and applicability of a non-contact vibration measurement method is experimentally evaluated. According to the analysis results, the non-contact vibration measurement method reveals an error of less than 5%, and could be efficiently applied to a rapid measurement for nonstationary response analysis of bridge structures.

• 신현섭(한국건설기술연구원 인프라구조연구실 수석연구원) | Shin, Hyun Seop 교신저자
• 주봉철(한국건설기술연구원 인프라구조연구실 수석연구원) | Joo, Bong Chul
• 김병철(한국건설기술연구원 인프라구조연구실 연구원) | Kim, Byeong Cheol
• 전진택(포스코건설 R&D센터 기술연구소 과장) | Jun, Jin Taek
• 박기태(한국건설기술연구원 인프라구조연구실 연구위원) | Park, Ki Tae