Specificity of Prefounded Column for Top-Down Construction

Top-Down 공사용 선기초기둥의 특성

  • 강승룡 (뉴테크 구조기술사사무소) ;
  • 임홍철 (연세대학교 건축공학과) ;
  • 김승원 (뉴테크 구조기술사사무소) ;
  • 박대영 (모던 구조기술사사무소) ;
  • 김동건 (뉴테크 구조기술사사무소) ;
  • 송지윤 (연세대학교 건축공학과) ;
  • 정미라 (연세대학교 건축공학과)
  • Published : 2008.11.14

Abstract

For deep basement construction of buildings downtown, the usage of Top-Down Method is increasing as much as ever from strong demand. One of the essential elements for the construction by Top Down Method is the pre-founded columns, which are installed in the ground and on which a building is installed. The fact that the pre-founded columns are placed in the ground makes them susceptible to its plumbness; this aspect distinguishes pre-founded columns from general columns. However, there are no criteria for erection tolerance. Therefore, field-measured-data concerning out-of-plumb of pre-founded columns in the construction field should be accumulated and investigated so that criteria and specifications for the erection tolerance of pre-founded columns may be established through the understanding of its aspects. In this paper, we investigate out-of-plumb of pre-founded columns for the construction case and analyze its aspects, and propose considerations for design and construction phase.

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