A Study on the Development of Sustainable Durability Design Method in Apartment Houses with Assessments of Life Cycle CO���

To alleviate global warming effect, apartment house with long life spans have gained attention due to their ability to conserve resources and reduce CO��� emissions. The purpose of the study was to develop a Sustainable Durability Design method that can quantitatively evaluate LCCO���emissions based on the durability life of apartment buildings in the early design phase. To compute CO��� 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 CO���-emitting construction materials were selected, and CO��� assessment plans for 5 standard apartment housings were proposed. For the operation phase, CO��� emissions were computed using the heating load calculation. For the maintenance and management phase, maintenance methods were selected according to the durability life,and CO��� emissions from repair materials for each maintenance method were computed. For the disposal phase, individual CO���emissions were computed using the Standard Quantities As a result, design specifications that satisfy specific target durability life and target reductions in LCCO��� 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 LCCO��� emission of 40%