Due to the enlargement and high-rise of reinforced concrete structure, the application of high functional material is required. However, high-strength bar is recently introduced to the country and the material is insufficient to measure the variation of quantity of rebar quantitatively when using high-strength bar. For these reasons, this study is to provide useful data in cost decision making when applying high-strength bar at a stage of architectural project planning. For residence-commerce complex buildings, we set up six types of conditions such as in case of using only rebar, in case of using only high-strength bar, in case of using rebar mixed with high-strength bar and so on. With the standard of study model 1 that applies only SD400 regardless of rebar diameter, the analyzed result of rebar variation and the cost change of construction in other study model is as follows. When the rebar amount and cost in study model I was 100%, each ratio was 88.3% and 90.5% in study model II, 80.2% and 83.4% in study model III, 91.9% and 93.5% in study model IV, 88.9% and 87.7% in study model V and 82.4% and 85.5% in study model VI. Therefore, in case of rebar amount and construction cost, study model III was evaluated as the best that was applied only SD600.

1. 서 론
  1.1 연구의 배경 및 목적
  1.2 연구의 범위 및 방법
 2. 이론적 고찰
  2.1 고장력 철근 적용 현황
  2.2 고장력 철근의 특징
  2.3 선행 연구 고찰
 3. 비용 분석
  3.1 분석 대상 개요 및 기초 조사
  3.2 연구모델의 구성
  3.3 경제성 분석
  3.4 종합분석
 4. 결 론
 감사의 글
 References

• 이종식(송원대학교 건축공학과 교수) | Jong-Sik Lee 교신저자