Probabilistic analysis of resource roof structures of industrial buildings with the random nature of the snow load

Abstract

Probabilistic analysis of resource roof structures of industrial buildings with the random nature of the snow load

Suhina K.N., Pshenichkina V.A.

Incoming article date: 20.11.2015

In the article the results of research in probabilistic production of residual life of load-bearing structures of the coating of the main body R-1 JSC «VOLTAIR-PROM» as a multiple redundant system. The obtained function of the probability of exceeding the design values of snow loads during the operation of the building on the basis of statistical data the distribution of annual maxima. The resulting probability of system failure ""post farm - truss"" given the decline in reserve strength and the likelihood of exceeding the snow load specified level in time. It is shown that the defining characteristics of residual life - probability of failure and the average uptime of the system can be obtained using only the first two statistical moments of the design variables - mathematical expectation and coefficient of variation that does not require extensive statistical data.

Keywords: residual reserves of strength, safety feature, the distribution, reliability, multi-element system, the probability of failure