초고층 주거건축의 주동형태별 외기면 개방성과 면적효율성에 관한 연구

The purpose of this study was to identify the planning characteristics of openness and area effectiveness of high-rise residential buildings in terms of building forms. 9 high-rise residential buildings in Korea higher than 60-stories were selected to represent the building plan types- square type, X-type, Y-type, and the irregular. The openness of each case was analyzed primarily in terms of the length of exterior surface and the number of facing direction. The results of this study were as follows; while square type building plan is proper for the typical floors of relatively small and midium sizes due to the limitation of depth from exterior surface to core, X-type and Y-type building plan can provide much more length of exterior surface for openness of larger typical floor. However, the area effectiveness rapidly decreases for the large X-type than Y-type building plan. Therefore, more serious consideration need to be exerted for the core and unit plan of large size high-rise residential buildings to secure the effectiveness of typical plan but also for livability of each unit.