Reliability of building structures in case of an air blast wave

Abstract

The analysis shows that the parameters of the air shock wave vary significantly and have a pronounced random nature. In general, in structural analysis, design parameters of the shock wave are random functions or random variables; therefore, the reaction parameters of the system under consideration will also be random. Then, fulfillment of certain conditions (for example, strength) is only possible with a certain probability, and the reliability of the system under consideration can be estimated using methods of building structures reliability, methods of mathematical statistics and probability theory. As a result, a probabilistic model of an air shock wave has been developed and the reliability of a free-standing wall has been estimated for random exposure parameters, as well as for random strength characteristics of materials. Based on the calculation results, it was concluded that the calculation of reliability using methods of mathematical and statistical probability theory makes it possible to bring the strength analysis of building structures closer to actual operating conditions.

The influence of the coefficient of variation on the process reliability of brick production

“…Modeling methods that allow characterizing the uncertainty with a wide range of assumptions of dependences [8][9][10] have been developed, the analysis of the effect of partial safety factors on the reliability of design of steel elements [11] has been conducted Statistical methods allow to get at the design stage an idea of the reinforced concrete structures reliability under conditions of various beyond design impacts such as fire, formation and progressive development of fatigue cracks [12,13]. At the same time, the theory of building structures reliability has a unified scientific justification, but the disadvantage of this justification is that the most important concept formulations do not contain the terms of structural mechanics, which can lead to in-accuracies in calculations and design [14][15][16].…”