전과정 CO₂ 평가를 통한 공동주택의 친환경내구설계 기법 개발에 관한 연구

Abstract

To alleviate global warming effect, apartment house with long life spans have gained attention due to their ability to conserve resources and reduce CO₂ emissions. The purpose of the study was to develop a Sustainable Durability Design method that can quantitatively evaluate LCCO₂emissions based on the durability life of apartment buildings in the early design phase. To compute CO₂ emissions as a function of the durability life, the durability life was determined using the durability chapter of Korea Concrete Standard Specifications, computed W/B, and thickness of concrete cover. The life cycle of the building was divided into 4 phase. For the construction phase, major CO₂-emitting construction materials were selected, and CO₂ assessment plans for 5 standard apartment housings were proposed. For the operation phase, CO₂ emissions were computed using the heating load calculation. For the maintenance and management phase, maintenance methods were selected according to the durability life,and CO₂ emissions from repair materials for each maintenance method were computed. For the disposal phase, individual CO₂emissions were computed using the Standard Quantities As a result, design specifications that satisfy specific target durability life and target reductions in LCCO₂ were selected in the early design phase. In addition, by conducting a case analysis, 36 design specifications were selected to obtain a durability life of 100 years and a reduction in LCCO₂ emission of 40%.