Open Access iconOpen Access

ARTICLE

Calculation of Mass Concrete Temperature and Creep Stress under the Influence of Local Air Heat Transfer

Heng Zhang1,2, Chao Su2,*, Xiaohu Chen1, Zhizhong Song1, Weijie Zhan3

1 Academy of Science and Technology, Changjiang Institute of Survey Planning Design and Research, Wuhan, 430010, China
2 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China
3 Chief Engineer Office, Wujiang Company of Goupitan Power Construction Cooperation, Yuqing, 564408, China

* Corresponding Author: Chao Su. Email: email

(This article belongs to the Special Issue: Structural Design and Optimization)

Computer Modeling in Engineering & Sciences 2024, 140(3), 2977-3000. https://doi.org/10.32604/cmes.2024.047972

Abstract

Temperature-induced cracking during the construction of mass concrete is a significant concern. Numerical simulations of concrete temperature have primarily assumed that the concrete is placed in an open environment. The problem of heat transfer between the air and concrete has been simplified to the concrete’s heat dissipation boundary. However, in the case of tubular concrete structures, where air inlet and outlet are relatively limited, the internal air temperature does not dissipate promptly to the external environment as it rises. To accurately simulate the temperature and creep stress in tubular concrete structures with enclosed air spaces during construction, we establish an air–concrete coupled heat transfer model according to the principles of conjugate heat transfer, and the accuracy of the model is verified through experiments. Furthermore, we conduct a case study to analyze the impact of airflow within the ship lock corridor on concrete temperature and creep stress. The results demonstrate that enhancing airflow within the corridor can significantly reduce the maximum concrete temperature. Compared with cases in which airflow within the corridor is neglected, the maximum concrete temperature and maximum tensile stress can be reduced by 12.5°C and 0.7 MPa, respectively, under a wind speed of 4 m/s. The results of the traditional calculation method are relatively close to those obtained at a wind speed of 1 m/s. However, the temperature reduction process in the traditional method is faster, and the method yields greater tensile stress values for the corridor location.

Keywords


Cite This Article

APA Style
Zhang, H., Su, C., Chen, X., Song, Z., Zhan, W. (2024). Calculation of mass concrete temperature and creep stress under the influence of local air heat transfer. Computer Modeling in Engineering & Sciences, 140(3), 2977-3000. https://doi.org/10.32604/cmes.2024.047972
Vancouver Style
Zhang H, Su C, Chen X, Song Z, Zhan W. Calculation of mass concrete temperature and creep stress under the influence of local air heat transfer. Comput Model Eng Sci. 2024;140(3):2977-3000 https://doi.org/10.32604/cmes.2024.047972
IEEE Style
H. Zhang, C. Su, X. Chen, Z. Song, and W. Zhan "Calculation of Mass Concrete Temperature and Creep Stress under the Influence of Local Air Heat Transfer," Comput. Model. Eng. Sci., vol. 140, no. 3, pp. 2977-3000. 2024. https://doi.org/10.32604/cmes.2024.047972



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 417

    View

  • 134

    Download

  • 0

    Like

Share Link