TY - JOUR
T1 - Sustainable design model for analysis of relationships among building height, CO 2 emissions, and cost of core walls in office buildings in Korea
AU - An, Jung Hwan
AU - Bae, Sang Geun
AU - Choi, Jewoo
AU - Lee, Min Gyu
AU - Oh, Hyung Seok
AU - Yun, Da Yo
AU - Lee, Dong Eun
AU - Park, Hyo Seon
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/3
Y1 - 2019/3
N2 - A shear wall is a vertical member with a relatively large volume that is used frequently as a vertical passage and a lateral load support system in every building without exception. Many studies have been conducted on the sustainable design of buildings, but few have studied the sustainable design of shear walls considering CO 2 emissions. Herein, a sustainable design model for shear walls is developed to analyze the relationship between building height, CO 2 emissions, and construction cost. The model is applied to the sustainable design of shear walls installed in a 42-story mixed-use building. The characteristics in the change in CO 2 emissions and the construction cost according to the building height were analyzed using the slenderness ratio as a variable. The results indicated that as the slenderness ratio increased, the CO 2 emissions increased almost linearly in proportion to the height. In particular, when the slenderness ratio increased from 4.40 to 4.93, which is known to be the limit of the efficient applicability of shear walls, the CO 2 emissions tended to increase more rapidly. When the slenderness ratio was 4.93, the CO 2 emissions for the shear wall were reduced to 27.24% by the proposed model.
AB - A shear wall is a vertical member with a relatively large volume that is used frequently as a vertical passage and a lateral load support system in every building without exception. Many studies have been conducted on the sustainable design of buildings, but few have studied the sustainable design of shear walls considering CO 2 emissions. Herein, a sustainable design model for shear walls is developed to analyze the relationship between building height, CO 2 emissions, and construction cost. The model is applied to the sustainable design of shear walls installed in a 42-story mixed-use building. The characteristics in the change in CO 2 emissions and the construction cost according to the building height were analyzed using the slenderness ratio as a variable. The results indicated that as the slenderness ratio increased, the CO 2 emissions increased almost linearly in proportion to the height. In particular, when the slenderness ratio increased from 4.40 to 4.93, which is known to be the limit of the efficient applicability of shear walls, the CO 2 emissions tended to increase more rapidly. When the slenderness ratio was 4.93, the CO 2 emissions for the shear wall were reduced to 27.24% by the proposed model.
KW - Construction material cost
KW - Embodied CO emissions
KW - Office buildings with shear walls
KW - Optimal structural design
KW - Sustainable design model
UR - http://www.scopus.com/inward/record.url?scp=85060080341&partnerID=8YFLogxK
U2 - 10.1016/j.buildenv.2019.01.017
DO - 10.1016/j.buildenv.2019.01.017
M3 - Article
AN - SCOPUS:85060080341
SN - 0360-1323
VL - 150
SP - 289
EP - 296
JO - Building and Environment
JF - Building and Environment
ER -