Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the Working Pressure of TBP used in Tall Building

초고층건축물에 사용되는 분기배관의 사용압력에 관한 연구

  • Lee, Sung-Ho (Division of Computer Applied Modeling, Gimcheon College) ;
  • Kim, Hei-Song (Department of Mechanical Engineering, Dankook University)
  • 이성호 (김천대학 컴퓨터응용모델링계열) ;
  • 김희송 (단국대학교 기계공학과)
  • Published : 2008.05.10
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Abstract

In this study, we had the stress analyses of TBP used in Tall Building and determined the working pressure of TBP. We knew the four fact. First, the place acted maximum stress is axial direction of branched part. Second, working pressure is more than 2.0 MPa. Third, stress in branched part is less than yielding strength at hydrostatic test pressure. Fourth, the ratio(stress/yielding stress at hydrostatic test pressure) is $0.4{\sim}0.6$(KS D 3562 Sch 40), $0.3{\sim}0.4$(KS D 3576 20S).

Keywords

References

  1. KFI Corp. 2006, KFI Certificated Standard of T-Branched Pipe, p. 1
  2. Nam, J. S., et al., 2007, A study on the Strength Analyses of T-branch Pipes, T. of Korean Institute of Fire Sci. and Eng., Vol. 21, No. 2, p. 36
  3. UL, 2004, Alarm Valves for Fire-Protection Service, UL 193, 28. Strength of body test, p. 22
  4. FM, 2004, Approval Standard for Deluge Systems and Preaction Systems, FM Class Number 1011 and 1012, 7.3 Hydrostatic Tests, p. 8
  5. FM, 2004, "Approval Standard for Dry Pipe Valves", FM Class Number 1021, 4.5 Hydrostatic Tests, p. 6
  6. KS D 3562, 1989, Carbon Steel Pipes for Pressure Service, KS CODE, Attachment, Vol. 1. p. 6
  7. KS D 3576, 2003, Stainless steel pipes, KS CODE, Attachment, Vol. 1-1, p. 10