Abstract
This paper deals with the study of the minimum required level of reliability of the steel capacities for grain storage and products of its processing, which should be ensured on the terms of economic expediency. This indicator is determined from the stochastic calculation of the construction, considering the stochastic nature of external influences and strength indexes of steel. The storage capacities are considered as constructions with exclusively economic responsibility. The calculation algorithm is based on the definition of the construction risk indicator. Graphically, it is expressed on the basis of the probability of failure-free operation or geometric characteristics of the cross-section. Considering the direct dependence of the element cost and its cross-sectional area, on the basis of a minimum of the risk function, it was obtained the formula of economic loss. It depends on the optimal probability of failure and the coefficient of the load variation. For steel storage capacities the generalized effort is schematized by two distribution laws: the normal one, which is used to describe the pressure of the bulk material on the body walls of the storage capacity, and the double exponential distribution of Humbel, which is used to describe the maximums of the snow and wind loads.
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Makhinko, A., Makhinko, N. (2020). To the Calculation of the Optimal Level of Reliability by Using Economic Indicators. In: Blikharskyy, Z., Koszelnik, P., Mesaros, P. (eds) Proceedings of CEE 2019. CEE 2019. Lecture Notes in Civil Engineering , vol 47. Springer, Cham. https://doi.org/10.1007/978-3-030-27011-7_32
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DOI: https://doi.org/10.1007/978-3-030-27011-7_32
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