In this study, Rebar of SD500, SD600 is applied to the designed or constructed in domestic apartment. Analyzed the variation of the rebar according to the strength of the rebar and the construction cost of the change. Reinforced volume reduction of the apartment building is less than the other. Because, A low wall of rebar reduction is more than 50% of the total. The reason for the previous, Reduction of the quantity of horizontal reinforcement does not appear and Vertical rebar reinforcement than the stress is determined by the placement of rebar in which the upper floor.

• 조승호(단국대학교 부설 리모델링연구소 연구교수, 공학박사) | Cho, Seung-Ho Corresponding author
• 주창길(단국대학교 대학원 건축공학과 석사과정) | Ju, Chang-Kil
• 백인관(단국대학교 부설 리모델링연구소 연구교수, 공학박사) | Paik, In-Kwan
• 정란(단국대학교 건축대학 건축공학과 교수, 공학박사) | Chung, Lan