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A Study on the Status and Improvement of Double Pipe System in Apartment Buildings

공동주택 이중관 공법의 현안 분석 및 개선 연구

  • Kim, Myoung-Seok (Graduate School of Housing, Seoul National University of Science and Technology) ;
  • Kim, Youngil (School of Architecture, Seoul National University of Science and Technology) ;
  • Chung, Kwang-Seop (Graduate School of Housing, Seoul National University of Science and Technology)
  • 김명석 (서울과학기술대학교 주택대학원) ;
  • 김영일 (서울과학기술대학교 건축학부) ;
  • 정광섭 (서울과학기술대학교 주택대학원)
  • Received : 2012.08.20
  • Published : 2013.01.10

Abstract

Double pipe system in which PB pipe is inserted in CD pipe buried in the concrete slab is widely used for cold and hot water supplies in apartment housings. The system, however becomes complicated and the overlaying pipes in the concrete slab weaken the compressive strength of the slab. Also, insufficient insulation increases energy loss. In this work, the problems of the double pipe system are studied and plans A, B, and C are suggested for improvement. In terms of compressive strength of the concrete slab, plan A(total pipe length 73 m) was the weakest and plan B(2 m) was the strongest. Energy loss of plan A was the largest with 558.9 W and plan B was the lowest with 220.7 W. However, considering the combined effect of strength and heat loss, plan C becomes the best choice, which retains the advantage of the double pipe system.

Keywords

References

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