Effect of Loading and Beam Sizes on the Structural Behaviors of Reinforced Concrete Beams Under and After Fire
- 주제(키워드) fire , RC beam , load level , cross sectional size , experimental study , analytical model
- 주제(기타) Construction & Building Technology; Engineering, Civil; Materials Science, Multidisciplinary
- 설명문(일반) [Ryu, Eunmi; Shin, Yeongsoo; Kim, Heesun] Dept Architectural & Urban Syst Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea
- 등재 SCIE, SCOPUS, KCI등재
- 발행기관 SPRINGEROPEN
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000156436
- 본문언어 영어
- Published As http://dx.doi.org/10.1186/s40069-018-0280-5
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Performance-based fire resistance design needs consideration of various influencing parameters of structures such as load levels and cross-sectional size. Therefore, the studies of fire damaged reinforced concrete (RC) structures are performed experimentally and analytically. Twelve RC beams with different load levels and cross sections are exposed to high temperatures following the ISO 834 standard time temperature. After the fire test, the fire-damaged beams are loaded using four-point loading to obtain its residual strength. In addition, ABAQUS 6.10-3 is used to preform structural analyses of the ductility of the fire-damaged beams. The results indicate that the temperature, stiffness and ductility of the fire-damaged beams are significantly influenced by the load level, cross-sectional size and time exposed to fire. Also, the ductility of the fire-damaged beam can be predicted using an analytical method, which is not easy to otherwise determine experimentally.
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