The set of equations for defining a distribution function in case of probabilistic calculation methods

The paper presents probabilistic calculation of building structures. The reliability is determined for a case when distribution functions are unknown in advance. The probability calculation of strength, stability and deformation properties of structural systems is made for improving accuracy of reliability control. The accuracy increase is caused by more detailed consideration of a random nature of parameters, which are used to calculate internal forces, load-carrying capacity and other characteristics. The authors suggest an algorithm of probabilistic calculation, whereby there is no need to accept in advance the equality of distribution laws for internal forces and the load-carrying capacity.