An Analysis of the Calculation of the Temperature Field of the Reinforced Concrete Beam under the High Temperature of Fire

Abstract:

Under the high temperature of fire, the temperature change of the reinforced concrete beam is very important to the structure study. This paper, with heat transfer theory as its theoretical basis, explores the analytical method, the common method for analysis, calculation method of numerical value and finite element analysis by analyzing the temperature field of the concrete component cross sections under high temperature. With the help of MATLAB, it calculates and analyzes the temperature field of the reinforced concrete beam under the high temperature of fire, determines the temperature rise curve of the reinforced concrete beam in case of fire, and calculates the cross section temperature fields of the beam or pillar under the circumstances of different cross section sizes and different timings of fire on three sides.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 2299-2304
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.2299
• Online since: September 2013
• Authors: Man Li Ou, Wei Jun Cao, Fang Cheng Liu
• Keywords: Equation of Heat Conduction, MATLAB, Reinforced Concrete (RC) Beam, Temperature Field

References

[1] Sun Jinfeng, Shi Xudong, Guo Zhenhai. Building Structure. 2002, 32(1): 34-36. in Chinese.

[2] Jin Mu. Journal of Hunan University. 1996, 23(1): 78- 84. in Chinese.

[3] Guo Zhenhai, Shi Xudong. Journal of Tsinghua University. 1997, 37(6): 87-90. in Chinese.

[4] Shi Guiping. A Nonlinear Finite Element Analysis of Temperature Field and Thermal Stress in the Reinforced Concrete Structure. [Doctor's Degree Dissertation of Tsinghua University] Beijing: Tsinghua University, 1990: 30-35. in Chinese.

[5] Xu Zhixin, He Youlang, Lin Jinmu. Journal of Hunan University (Natural Sciences). 2002, 29(2): 58-62. in Chinese.

[6] Fu Li. Grey System Theory and Its Application. Science and Technology Literature Press, 1992. in Chinese.

[7] Yu Li, Hu Haitao. Building Structure. 2002, 23(4): 32-35. in Chinese.

[8] Wu Bo, Ma Zhongcheng, Ou Jinping. Building Structure. 1999. 20(5): 42-49. in Chinese.