›› 2014, Vol. 53 ›› Issue (5): 32-38.

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The Analysis of Thermal Stress of Concrete Cylinder in the Steady Ax-symmetric Temperature Field

LIANG Lei1,ZHAO Wen2,LI Yi2   

  1. 1.Panjin Construction Engineering Quality Supervising Station, Panjin,124010,China;
    2.College of Resource and Civil Engineering, Northeastern University , Shenyang 110819,China
  • Received:2013-12-11 Online:2014-09-25 Published:2014-09-25

Abstract: The temperature field will generate thermal stress in the concrete cylinder. The thermal stress for mutative axial temperature in the steady ax-symmetric temperature field is analyzed, then the full analytical solution is obtained and the solution of undetermined coefficents is discussed using the property of power and trigonometric function. Based on the results of temperature testing by temperature sensor deposited beforehand and analytical solution, the numerical examples about the Φ200×550 mm3 concrete cylinder are given by Matlab. By the analysis, the conclusions can be got as the follows: the distribution of thermal stress in concrete cylinder wouldnt change, the values of stress would be in the same order of magnitude, and the range of stress would increase 40 percents nearly in the steady axsymmetric temperature field as temperature has transformed from 100 ℃ to 120 ℃.

Key words: concrete, cylinder, thermal stress, analytical solution, temperature testing

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