Accumulation of more than 20,000,000 vehicles since the establishment of the quality of life and economic development needs several parking lots and cause crack problem in Korea. Related structures in large cities due to the lack of parking garage attached to secure underground parking structures are actively being built, and the basement parking lot will continue to increase more stories and the trend is expected to be larger. But so far, construction of the underground parking structure is related to a number of problems, including cracks in the structure. Therefore, in this study, repair, reinforcement and a few non-economic losses in the current design criteria are presented. The review of the structure used to current design criteria is to minimize crack and maximize usability.

• 김영진(한국토지주택공사 토지주택연구원 수석연구원) | Kim, Young-Jin
• 이범식(한국토지주택공사 토지주택연구원 연구위원) | Lee, Bum-Sick Corresponding author
• 최동섭(㈜ C·S 콘텍 대표이사, 건축구조기술사) | Choi, Dong-Sub
• 오효근(㈜ C·S 콘텍 과장) | Oh, Hyo-Keon
• 강창범(㈜ C·S 콘텍 대리) | Kang, Chang-Bum