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연직파이프쿨링 공법에 의한 매스콘크리트 온도균열 제어에 관한 해석적 연구

Analytical Study on Thermal Cracking Control of Mass Concrete by Vertical Pipe Cooling Method

  • 서태석 (현대건설 연구개발본부 첨단재료연구팀) ;
  • 조윤구 (현대건설 연구개발본부 첨단재료연구팀) ;
  • 이근주 (현대건설 연구개발본부 첨단재료연구팀) ;
  • 임창근 (현대건설 연구개발본부 첨단재료연구팀)
  • Seo, Tae-Seok (Advanced Material R&D Team, Hyundai Institute of Construction Technology) ;
  • Cho, Yun-Gu (Advanced Material R&D Team, Hyundai Institute of Construction Technology) ;
  • Lee, Kewn-Chu (Advanced Material R&D Team, Hyundai Institute of Construction Technology) ;
  • Lim, Chang-Keun (Advanced Material R&D Team, Hyundai Institute of Construction Technology)
  • 투고 : 2013.07.08
  • 심사 : 2013.11.13
  • 발행 : 2014.02.28

초록

이 연구에서는 수직으로 긴 매스 구조물에 적합한 파이프쿨링 공법을 제안하기 위하여 기존의 파이프쿨링 공법과는 달리 파이프를 수직으로 설치하는 연직파이프쿨링 공법을 개발하였다. 타당성을 검토하기 위하여 해석대상 부재의 형상($1{\times}3{\times}20m$, $4{\times}4{\times}4m$)을 대상으로 하여 FEM 해석을 수행하였으며, 온도 및 응력 변화와 온도균열 지수 등을 검토하였다. 그 결과, 매스콘크리트 구조물의 온도균열 제어에 효과가 있는 것을 확인할 수 있었다.

In this study, the vertical pipe cooling method was developed to propose the pipe cooling method suited for the vertically long mass concrete structures. FEM (finite element method) analysis was carried out to investigate the validity of the vertical pipe cooling method, and the temperature, the behavior of tensile stress of concrete and the crack index were investigated. In result, it was confirmed that the vertical pipe cooling method was effective in the thermal cracking control of mass concrete member.

키워드

참고문헌

  1. EUGENECOP., Massive Ocean Concrete Design Guide Book, EUGENECOP Institute of Technology, 2010, pp. 16-17.
  2. KCI, Concrete Standard Specification, Korea Concrete Institute, 2009, pp. 363-368.
  3. Report of Committee, "Research Committee on Cracking Control of Mass Concrete," Proceedings of Japan Concrete Institute, Vol. 28, No. 1, 2006, pp 13-22.
  4. Tatsuki, S., Ishibashi, T., Furuyama, S., and Oba, M., "Study on the Temperature Crack Concrete of Box Rigid Frame Structure," Proceedings of JSCE, No. 739, 2003, pp. 265-272.
  5. BS 8110-2, Structural Use of Concrete-part 1: Code of Practice for Special Circumstances, British Standard, 1985, 23 pp.
  6. JSCE, Specification for Design and Construction of Concrete Structures (Construction Part)-Mass Concrete, Japan Society of Civil Engineers, 1996, pp. 173-193.

피인용 문헌

  1. The Reduction of Maximum Hydration Temperature in Cement Paste Using Calcium Silicate Hydrates and Glucose vol.27, pp.3, 2015, https://doi.org/10.4334/JKCI.2015.27.3.265