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계단실 공사를 위한 PC Double Wall 공법 개발

Development of PC Double Wall for Staircase Construction

  • Suh, Jung-Il (Department of Architecture&Architectural Engineering, Seoul National University) ;
  • Park, Hong-Gun (Department of Architecture&Architectural Engineering, Seoul National University) ;
  • Hwang, Hyeon-Jong (Department of Architecture&Architectural Engineering, Seoul National University) ;
  • Im, Ju-Hyuk (Modular Business Team, SAMSUNG C&T Engineering & Construction) ;
  • Kim, Yong-Nam (Modular Business Team, SAMSUNG C&T Engineering & Construction)
  • 투고 : 2014.06.30
  • 심사 : 2014.09.11
  • 발행 : 2014.12.20

초록

본 연구에서는 중공 PC 벽체 (PC Double Wall)를 적용한 계단실 공법을 개발하였다. 중공 PC 벽체는 내부 중공으로 인하여 양중 무게를 줄이고 외부 벽체가 거푸집 역할을 하며, 벽체 내부 중공에 현장 콘크리트를 타설하여 기존 PC 벽체와 비교하여 부재간의 일체성 확보가 우수하다. PC Double Wall 제작 및 현장 콘크리트 타설, 구조적 안전성을 고려하여 PC 벽체 단면과 철근 배근 상세를 제안하였다. 제안 상세를 바탕으로 얇은 PC벽체와 중공부를 효과적으로 형성하기 위한 세움 타설 방식의 거푸집 시스템을 개발하였다. PC Double Wall을 이용하여 계단실 Mock-up test를 통하여 부재 간 일체성과 시공성을 검증하였으며, 부재 간 접합부의 변형 및 균열이 발생하지 않고 시공성이 우수한 것으로 나타났다.

In the present study, hollow precast concrete wall (PC Double Wall) for staircase construction was developed. Comparing the conventional walls, the PC Double Wall can be reduced the lift weight using hollow core and improves the integrity between the PC members. The cross-section and re-bar details of the PC Double Wall were developed considering precast concrete manufacturing, constructability, and the structural safety. Particularly, a form system was developed to manufacture thin and hollow core PC wall efficiently. A mock-up test for a staircase using the PC Double wall was performed to verify the constructability and integrity of the PC walls. The test result verified that joint deformation and cracking did not occur as showing good constructability.

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참고문헌

  1. Kim OJ, Kim LB. RC Core Sequential Construction Method by Using PC Stairs. Journal of Architectural Institute of Korea. 2005 Mar;49(2):100-8.
  2. Yoon YH, Chun YS, Park JY, Jang IH, Kim SB, An HK. System Steel Stairs for RC Structures. Journal of the Korea Concrete Institute. 2003 Sep;15(9):61-6.
  3. Rhim HC, Kim OJ, Cho HD, Song JY. Analysis of PC Stairways for Improved Performance Based on Construction Cases. Journal of the Korea Institute of Building Construction. 2008 Jun;24(6):153-62.
  4. Kang SM, Kim OJ. Domestic and Foreign Present Situation Analysis of a PC Method. DAELIM Technology Research Institute. 2006 Mar; 28-37.
  5. Lee LH, Yi WH, Lim JH, Lee DN, Woo KS. Behavior of Wall-to-Floor Joint in Bearing Wall System with Double Precast Concrete Panel. Journal of Architectural Institute of Korea. 1997 Jan;13(1):165-72.
  6. Lee LH, Yi WH, Lim JH, Lee DN, Woo KS. Behavior of Wall-to-Wall Joint in Bearing Wall System with Double Precast Concrete Panel. Journal of Architectural Institute of Korea. 1997 Feb;13(2):181-86.
  7. N.H.Hamid, John B.Mander. A Comparative Seismic Performance Between Precast Hollow Core Walls and Conventional Walls Using Incremental Dynamic Analysis. Arabian Journal for Science and Engineering. 2012 May;37(7):1801-5. https://doi.org/10.1007/s13369-012-0301-7
  8. Syspro(R)PART. The Technology behind the Wall. 1st ed. Freilassing: Christian Prilhofer Consulting; 1997. 146 p.
  9. Kang SM, Oh JK, Kim OJ, Lee DB, Park HG. Development of a Precast Concrete Structural Wall Adopting Improved Connections in the Plastic Hinge Region. Journal of the Earthquake Engineering Society of Korea. 2010 Apr;14(2):15-26. https://doi.org/10.5000/EESK.2010.14.2.015
  10. Korea Concrete Institute. Concrete Design Code, Korea Concrete Institute. Seoul: Kimoondang Publishing Company; 2012. 600p.
  11. Korea Architectural Institute. Korea Architectural Standard Specification. Seoul: Kimoondang Publishing Company; 2013. 1784p.
  12. Korea Concrete Institute. Concrete Standard Specification. Seoul: Kimoondang Publishing Company; 2009. 366p.