This paper reviewed the environment of freezing-thawing cycle and snowfall frequency which represents environment of deicing agent in concrete bridges at the same time. The results showed that in terms of complex aging environment, freezing-thawing cycle and salt attack environment should be considered together. As environmental data are used in durability assessment of bridges, the results will be more reliable and practical. In addition, the quantitative evaluation method for complex aging environments will be needed in the future study.

Abstract
 1. 서 론
 2. 강설빈도를 고려한 교량의 동해환경 평가 방안
 3. 결 론
 참고문헌

• 이종석(한국건설기술연구원, 구조융합연구소) | Lee, Jong Suk
• 이빛나(한국건설기술연구원, 구조융합연구소) | Lee, Binna