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Optimization for Precast Prestressed Wide-U Beams with the Least Depth
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 Title & Authors
Optimization for Precast Prestressed Wide-U Beams with the Least Depth
Yul Sung-Yong;
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The cost of underground work is a dominant factor to determine the total construction fee. It is generally 2 2.5 times higher than that of above ground for building with the same height. 'A new precast prestressed framing plan for underground parking building' was suggested with the beam of the least depth - U-type beams. The depth of regular rectangular reinforced concrete beam which is currently used in the underground parking of apartments could be reduced up to 12 34cm/story due to the development of a U-beams from the optimum process. Two full scale prototype U-beams were tested in this study. It was found that the Wide U-beams in the test showed higher strength than calculated nominal and design, however need to provide temporary supports to meet the flexural moment of construction load at the simply supported state before the lopping concrete hardens.
optimization;precast;story height;underground parking;beam depth;U-type beam;one-way slab;
 Cited by
김상식, 유승룡, '프리스트레스를 도입한 장스팬 PC골조 구조 시스템의 개발', 건설교통부 1년차 보고서, 건설교통부, 2000. pp,172-286

'PCI Design Handbook,' Fifth Edition, Chicago, Illinois, 1999

Arthur H, Nilson, 'Design of Prestressed Concrete,' Second Edition, Wiley, 1987, pp.121-190

ACI 318-99, 'Building Code Requirements for Structural Concrete(ACI318-99).' American Concrete Institute, Detroit, Michigan, 2000

유승룡, 민창식, '프리스트레스트 프리캐스트 더블 티형보의 최적설계', 콘크리트학회논문집, 제11권 6호, 1999. 12. pp.57-68

박현석, 김인규, 이종민, 유승룡, '프리스트레스트 프리캐스트 와이드 U형보의 휨실험', 대한건축학회 학술발표회논문집 제21권 1호 2001.4, pp.27-30