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Development of a Height Adjustment Method of Prefabricated Individual Footing for the Leveling of Unit Modular Structural System

유닛모듈러 건축구조물의 수평 정밀도 확보를 위한 Pre-Fab 독립기초 높이조절 공법 개발

  • Jun, Young-hun (Korea Institute of Civil engineering and building Technology(KICT)) ;
  • Kim, Kyoon-Tai (Korea Institute of Civil engineering and building Technology(KICT)) ;
  • Chae, Myung-Jin (Korea Institute of Civil engineering and building Technology(KICT))
  • Received : 2015.08.18
  • Accepted : 2015.10.23
  • Published : 2015.12.20

Abstract

In the unit modular construction, the unit module prefabricated in a factory with a high level of accuracy does not fit completely onto the ground-joint junction due to the low accuracy of the ground work. This difference in the level of accuracy can cause diverse problems, such as twisting the upper unit modules and loosening the connection between the module and the footing. On this background, the aim of this study is to develop a technique for adjusting the height of the prefabricated individual footing. To accomplish the aim, a height adjustment method using bolts and nuts is proposed, and a shop drawing and the construction sequence are also presented in this study. The structural safety is verified through a structure simulation. In the future, research will be conducted on a mock-up test of the height adjustment method developed in this study, and an analysis of economic feasibility will be performed in order to verify its constructability and usability.

유닛모듈러 공법에서는 정밀 제작된 유닛모듈과 시공정밀도가 낮은 기초부의 접합부에서 수평 정밀도 차이가 발생한다. 이러한 정밀도 차이로 인하여 상부 유닛모듈이 뒤틀리거나, 간격이 벌어지는 등 다양한 문제가 야기될 수 있다. 이러한 배경에서 본 연구는 Pre-Fab 독립기초의 높이조절이 가능한 공법을 개발하는 것을 목적으로 하였다. 이를 위하여 본 연구에서는 볼트와 너트를 이용한 높이조절 공법을 제안하고 시공 상세도와 시공순서를 제시하였다. 그리고 구조 시뮬레이션을 수행하여 구조적 안정성을 확인하였다. 향후 개발된 높이조절 공법의 mock-up 시험, 경제성 분석 등을 실시하여 시공성과 유용성을 검토할 예정이다.

Keywords

References

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