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Applications of Construction Sequence Analyses to Prototype Models of Twisted Tall Buildings

비틀림 초고층 프로토타입 모델에 대한 시공단계해석의 적용

  • Choe, Mi-Mi (Department of Architectural Engineering, Graduate School, Kwangwoon Univ.) ;
  • Kim, Jae-Yo (Department of Architectural Engineering, Kwangwoon Univ.) ;
  • Eom, Tae-Sung (Department of Architecture, Catholic University of Daegu) ;
  • Jang, Dong-Woon (Building Construction Technology Department, Ssangyong E&C)
  • 최미미 (광운대학교 대학원 건축공학) ;
  • 김재요 (광운대학교 건축공학과) ;
  • 엄태성 (대구가톨릭대학교 건축학부) ;
  • 장동운 (쌍용건설 건축기술부)
  • Received : 2013.01.08
  • Accepted : 2013.02.04
  • Published : 2013.02.28

Abstract

With regard to complex-shaped tall buildings whose plans and constructions have been gradually on the increase, this study was aimed to analyze their structural behaviors during construction by applications of construction sequences analyses to prototype models. For twisted tall buildings, total 18 models of with three conditions of a lateral load-resisting system, a twisting angle, and a construction method were selected. A diagrid system and a braced tube system were applied as a lateral load-resisting system. For each lateral load-resisting system, three types of plan with $0^{\circ}$, $1^{\circ}$, and $2^{\circ}$ twisting angles and three construction methods with construction sequences of exterior tube and interior frame were assumed. The structural performances of tall buildings under constructions were analyzed with results of lateral displacements from construction sequence analyses. Also, construction performances of the construction period and the maximum lift weight were compared.

비정형 초고층 건물의 계획 및 시공이 늘어남에 따라 이 연구에서는 프로토타입 모델에 대한 시공단계해석의 적용을 통하여 비정형 초고층 건물의 시공 중 구조적 거동을 분석하고자 하였다. 비틀림 초고층 건물을 대상으로 횡력저항시스템, 비틀림각도, 공법 조건에 따른 총 18개의 모델을 선정하였다. 횡력저항시스템으로는 다이아그리드 시스템과 가새튜브 시스템을 적용하였으며, 각 횡력저항시스템별로 $0^{\circ}$, $1^{\circ}$, $2^{\circ}$ 비틀림각도를 갖는 세 가지 평면 형태와 외곽 튜브와 내부 골조의 시공순서에 따른 세 가지 공법을 가정하였다. 시공 중인 초고층 건물의 구조적 성능은 시공단계해석의 횡변위 결과를 통하여 분석되었으며, 골조 공기와 최대 양중량과 같은 시공성능이 함께 비교되었다.

Keywords

References

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