Behavior of Reinforced Concrete Slabs Connected with Hinge Joints of Remodelling Buildings

리모델링 건물의 활절점에 의하여 연결된 철근콘크리트 바닥판의 거동 평가

  • Sim Kyu-Kwan (Dept. of Architectural Engineering, Sungkyunkwan University) ;
  • Kim Sang-Sik (Dept. of Architectural Engineering, Inha University) ;
  • Lee Jung-Yoon (Dept. of Architectural Engineering, Sungkyunkwan University) ;
  • Choi kwang-Ho (Dept. of Architectural Engineering, Namseoul University) ;
  • Im Juhyeuk (Samsung Corporation, Engineering & Construction, Housing Division)
  • 심규관 (성균관대학교 건축공학과) ;
  • 김상식 (인하대학교 건축공학과) ;
  • 이정윤 (성균관대학교 건축공학과) ;
  • 최광호 (남서울대학교 건축공학과) ;
  • 임주혁 (삼성물산㈜ 건설부문)
  • Published : 2005.10.01


Lately outmoded and functionally obsolete buildings constructed in 1960s and 1970s are often remodelled and restored. Even though there are not serious structural defects in the existing buildings, many old buildings have been reconstructed to improve residence quality or to extend residence area of the buildings. The experimental or theoretical research on plane expansion of RC apartments is quite scare. In this research, 12 specimens and 19 RC slabs connected by hinged joints were tested. The new slab was connected to the existing slab by hinge joints injecting dowel bars between two slabs. Main parameters of the slabs are types of the dowel bars (D13 and D19), spacing of the dowel bars (150mm, 300mm, and 450mm), and the locations of the steel bars in the existing slabs. The test results indicated that the shear strength of the RC test slabs having various types of dowel bars was about twice that calculated by the ACI 318-02 code. All slabs failed in concrete spatting and the dowel steel bars did not reach their yield strengths.


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