THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Ben-Gao Yang

,

Peng He

,

Gao-You Peng

,

Tong Lu

TEMPERATURE-STRESS COUPLING MECHANISM ANALYSIS OF ONE-TIME POURING MASS CONCRETE

ABSTRACT
Thermal damage control of mass concrete is the key to guarantee the quality of mass projects. Based on several engineering experiences and finite element software ANSYS, the temperature field and stress field of the typical dam section of the Tengzigou hydropower station in Sichuan province were simulated. Considering the actual materials used, cooling measures, etc., maximum tensile stress and compressive stress at different time points derived from the temperature stress field during the time of concrete maintenance were calculated, and the numerical results showed that strength increment under the given conditions was much less than the actual condition. After the concrete of the dam body of the hydro power station were poured, there was no significant temperature stress crack appeared through a long-term observation, and the project condition was in tune with the calculated expectation. The above research results are valuable to further prediction of concrete temperature in different periods, the pre-study of the effect of temperature control measures, and these could offer guidance of the adjustment of temperature control measures in the case of abnormal conditions.
KEYWORDS
mass concrete, ANSYS, numerical simulation, temperature stress
PAPER SUBMITTED: 2018-08-25
PAPER REVISED: 2018-11-11
PAPER ACCEPTED: 2019-02-01
PUBLISHED ONLINE: 2019-05-26
DOI REFERENCE: https://doi.org/10.2298/TSCI180825231Y
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 3, PAGES [1615 - 1621]
REFERENCES
  1. Zhu, B. F., Temperature Stress and Temperature Control of Mass Concrete , China Electric Power Press, Beijing, CHN, 1999
  2. Wilson, E. L., The Determination of Temperatures Within Mass Concrete Structures: A Report of an Investigation, University of California, Structural Engineering Laboratory, California, USA, 1968
  3. Tatro，B., et al., Thermal Considerations for Roller Compacted Concrete, Journal of the American Concrete Institute, 82(1985), 3, pp. 32-38
  4. Barrett, P. K., et al., Thermal Structure Analysis Methods for RCC Dams, Proceedings, Conference of Roller Compacted Concrete III, Sam Diedo, California, 1992, pp. 389-406
  5. Tohru, K., Investigations on Determining Thermal Stress in Massive Concrete Structure，ACI Materials Journal, 93(1996), 1, pp. 96-101
  6. Honorio, T., et al., Factors Affecting the Thermo-Chemo-Mechanical Behaviour of Massive Concrete Structures at Early-Age, Materials and Structures, 49(2016), 8, pp. 3055-3073
  7. Klemczak, B. A., Modeling Thermal-Shrinkage Stresses in Early Age Massive Concrete Structures-Comparative Study of Basic Models, Archives of Civil and Mechanical Engineering, 14(2014), 4, pp. 721-733
  8. Kuriakose, B., et al., Early-Age Temperature Distribution in a Massive Concrete Foundation, Procedia Technology, 25(2016), pp. 107-114
  9. Kuriakose, B., et al., Modelling of Heat of Hydration for Thick Concrete Constructions-A Note, Journal of Structural Engineering, 42(2015), 4, pp. 348-357
  10. Hilaire, A., et al., Modeling Basic Creep in Concrete at Early-Age under Compressive and Tensile Loading, Nuclear Engineering and Design, 269(2014), 4, pp. 222-230
  11. Lawrence, A. M, et al., Effect of Early Age Strength on Cracking in Mass Concrete Containing Different Supplementary Cementitious Materials: Experimental and Finite-Element Investigation, Journal of Materials in Civil Engineering, 24(2012), 4, pp. 362-372
  12. Azenha, M., et al., Application of Air Cooled Pipes for Reduction of Early Age Cracking Risk in a Massive RC Wall, Engineering Structures, 62-63(2014), 3, pp. 148-163
  13. Zhu, B. F., Temperature Calculation of Concrete Dam, China Water Conservancy, (1956), 11, pp .8-20
  14. Wang, J. X., et al., Finite Element Analysis on the Temperature Field of the Massive Concrete Anchorage of HaiCang Bridge, China Railway Science, 30(2009), 5, pp. 46-52
  15. Sun, Z. Z, et al., Finite Element Simulation of inside-outside Temperature Gradient and Thermal Stress for Abutment Mass Concrete, Journal of Traffic and Transportation Engineering, 16 (2016), 2, pp. 18-26
  16. Liu, X. H., et al., The Refined Numerical Simulation of Pipe Cooling in Mass Concrete Based on Heat-Fluid Coupling Method, Engineering Mechanics, 29 (2012), 8, pp. 159-164
  17. Huang, Z. Q., et al., Numerical Simulation of Hollow Pier Template of Highway Based on ABAQUS, Journal of ShenYang University of Technology, 38(2016), 1, pp. 109-114
  18. Yan, J., et al., Research on Thermal Stress of Mass Concrete under Hydro-Thermo-Mechanical Coupling During Initial Impoundment, Journal of HuNan University(Natural Sciences),43 (2016), 5, pp. 30-38
  19. Zhuang, G. Q., Analysis of Heat of Hydration in Massive Concrete for Pile Caps, Journal of JiuJiang University(Natural Sciences), 32(2016), 3, pp. 35-39
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Temperature-stress coupling mechanism analysis of one-time pouring mass concrete

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