Differentiation of the target reliability measurments for structural systems robustness checking in accidental design situations
https://doi.org/10.33979/2073-7416-2025-117-1-72-90
Abstract
The scientifically based assignment of target values of reliability measures is the first and one of the most important steps, both when calibrating the system of partial coefficients included in modern prescriptive standards for the design of structures, and when performing limit state checks based on direct probabilistic calculations and risk calculations within the framework of a new design paradigm based on the performance-based output result or a response.
In the research, threshold values of failure probabilities and corresponding reliability indices, obtained on the basis of the basic requirement for ensuring life safety, are used as minimum acceptable reliability measures. This approach is implemented using the LQI- criterion, when calculating the constant of the relative cost of saving lives, for the socio-economic conditions of the Republic of Belarus. The threshold values of the decision-making parameters obtained from the conditions for ensuring the safety of life determine the boundary of the area in which the economic optimization of reliability measures should be performed.
The target values of reliability parameters used in survivability checks in special design situations for the socio-economic conditions of the Republic of Belarus have been established, which makes it possible to reasonably calibrate the global safety coefficient when performing a nonlinear analysis of damaged structural systems. From a comparison of the main indicators of socio-economic development, it can be concluded that the reliability measures obtained are applicable, with minor adjustments, to the conditions of the Russian Federation.
About the Author
A. V. Tur
Brest State Technical University
Belarus
Belarus
Tur Andrei V., PhD, Associate Professor, Head of the Department of Architecture
Brest
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Review
For citations:
Tur A.V. Differentiation of the target reliability measurments for structural systems robustness checking in accidental design situations. Building and Reconstruction. 2025;1(1):72-90. (In Russ.) https://doi.org/10.33979/2073-7416-2025-117-1-72-90
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