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Behavior of Reinforced Concrete Slabs Connected with Hinge Joints of Remodelling Buildings
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 Title & Authors
Behavior of Reinforced Concrete Slabs Connected with Hinge Joints of Remodelling Buildings
Sim Kyu-Kwan; Kim Sang-Sik; Lee Jung-Yoon; Choi kwang-Ho; Im Juhyeuk;
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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.
reinforced concrete slabs;remodelling;dowel bars;shear strength of joints;failure modes;
 Cited by
대한건축학회, '공동주택의 리모델링을 위한 구조설계 및 보강지침', 건설교통부, 2003, 237pp

대한건축학회, '콘크리트 구조물의 보수 보강', 대한건축학회, 1997, 181pp

건설교통부, '공동주택의 재건축실태와 수명연장 방법 연구', 건설교통부, 1994, 433pp

ACI Committee 318-02, Building Code Requirements for Reinforced Concrete and Commentary (ACT 318-02/ACI318R-02)', American Concrete Institute, Detroit, 2002, 443pp

한국콘크리트학회, 대한건축학회, 콘크리트 구조설계기준, 한국콘크리트학회, 대한건축학회, 1999, 319pp

CEB-FIP, CEB-FIP Model Code 1990, Committee Euro-International du Beton, London, 1991, 437pp