Random variables |
Type of probability distribution |
Mean value |
Coefficient of variation |
Source of coeficiente of variation |
Compressive strength of concrete |
Normal |
|
0.15 |
[17[17] GALAMBOS, T. V.; ELLINGWOOD, B.; MACGREGOR, J. G.; CORNELL, C. A. Probability based load criteria: Assessment of current design practice. Journal of the Structural Division, v.108, p.959-977, May.1982.] |
Tensile strength of concrete |
Normal |
|
0.18 |
[4[4] REAL, M. V.; CAMPOS FILHO, A.; MAESTRINI, S. R. Response variability in reinforced concrete structures with uncertain geometrical and material properties. Nuclear Engineering and Design (Print), New York, v. 226, n.3, p. 205-220, 2003.] |
Modulus of elasticity of concrete |
Normal |
|
0.15 |
[4[4] REAL, M. V.; CAMPOS FILHO, A.; MAESTRINI, S. R. Response variability in reinforced concrete structures with uncertain geometrical and material properties. Nuclear Engineering and Design (Print), New York, v. 226, n.3, p. 205-220, 2003.] |
Yield strength of reinforcing steel |
Normal |
|
0.05 |
[17[17] GALAMBOS, T. V.; ELLINGWOOD, B.; MACGREGOR, J. G.; CORNELL, C. A. Probability based load criteria: Assessment of current design practice. Journal of the Structural Division, v.108, p.959-977, May.1982.] |
Slab thickness |
Normal |
|
0.04 |
[18[18] STUCCHI, F. R.; SANTOS, S. H. C.; FRANCO, R. M. Evaluation of the safety criteria of Brazilian Standard NBR 6118 for slender members based on reliability analyses. Applications of Statistics and Probability in Civil Engineering, p. 2761-2767, 2011.] |
Distance between the geometric center of the upper flexural reinforcement and the concrete face |
Normal |
|
0.125 |
[18[18] STUCCHI, F. R.; SANTOS, S. H. C.; FRANCO, R. M. Evaluation of the safety criteria of Brazilian Standard NBR 6118 for slender members based on reliability analyses. Applications of Statistics and Probability in Civil Engineering, p. 2761-2767, 2011.] |