Prediction of Residual Resource Reinforced Concrete Elements and Structures by the Dependence of Physical Wear

Abstract

The article shows the relevance of the assessment of physical deterioration (PD) of elements and structures of buildings and structures. The drawbacks of existing time-based PD prediction techniques are shown. The need to develop PD models for various types of structures and operational conditions is justified. The logistic dependence of the ultimate service life of civil structures on PD indicators is considered. A study of the forecast dependence of PD for concrete and reinforced concrete structures based on the logistic trend was carried out. Coefficients are proposed that increase objectivity of using logistic dependence of prediction of concrete elements, reinforced concrete elements and structures. Values of constant wear (λ) for different time intervals, as well as weighted average values (λsr) for different types of iron-concrete elements and operating conditions were obtained. The obtained values of constant wear were analyzed with existing ones.