pISSN 1598-2033 eISSN 2233-5706 Journal of the Korea Institute of Building Construction, Vol. 11, No. 5 http://dx.doi.org/10.5345/JKIBC.2011.11.5.501 www.jkibc.org 501 Maintenance and remodeling are difficult for bearing wall type apartment buildings, which represent 50 % of residences in Korea, due to partitioning by the bearing wall[1]. This has frequently led to the unnecessary reconstruction of apartment buildings, which not only wastes expense and labor, but also can result in socially disruptive events, like a sudden rise of real estate prices[2]. To solve this problem, the government has implemented an incentive system that increases the volume and height limit by 20 % if the apartment applies a rahmen structure, which enables easy remodeling and deformation without structural damage. However, there are many difficulties involved in changing from a bearing wall structure to a rahmen structure. Compared to a bearing wall structure, an in‐ situ rahmen structure can implement a long span, and easily obtain quality and workability, but may increase floor height and raise construction cost. In this regard, studies have been conducted on precast concrete (PC)