Numerical Analysis of Temperature and Stress Distribution in Mass Concrete Structure with External Restriction

외부구속을 받는 매스콘크리트 구조물의 수화열 해석

  • 김은겸 (서울산업대학교 토목공학과) ;
  • 조선규 (서울산업대학교 토목공학과) ;
  • 신치범 (아주대학교 화학공학과) ;
  • 박영진 (코오롱 건설기술연구소 책임연구원) ;
  • 서동기 (코오롱 건설기술연구소 전임연구원)
  • Published : 1999.10.01

Abstract

Since the cement-water reaction is exothermic by nature, the temperature rise within a large concrete mass. Significant tensile stresses may develop from the volumn change associated with the increase and decrease of the temperature with the mass concrete. These thermal stresses will cause temperature-related cracking in mass concrete structures. These typical type of mass concrete include mat foundation, bridge piers, thich walls, box type walls, tunnel linings, etc. Crack control methods can be considered at such stages as designing, selecting the materials, and detailing the construction method. In this paper, the effect of placing of crack control joint or construction joint was analysed by a three dimensional finite element method. As a result, using this method, crack control can be easily performed for structures such as wall-type structures.

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