COMPARATIVE ANALYSIS OF THE APPLICATION OF STRESS-STRAIN RELATIONSHIPS PROVIDED IN DBN V.2.6-98:2009.

Abstract

The article presents the results of a comparative analysis of concrete stress-strain diagrams based on the functional mathematical dependencies provided in DBN V.2.6-98:2009 ([1], (3.4), (3.5)). The obtained results indicate minor discrepancies between the graphs derived from these dependencies, which suggests the equal applicability of both for the design of reinforced concrete structures according to the limit state method. The relevance of this study is due to the necessity of clarifying methodological approaches to the use of the specified normative provisions in the design of concrete and reinforced concrete structures. This research is particularly significant for the design of civil protection shelters, where precise calculations are critical for ensuring structural reliability. The findings contribute to enhancing the safety and durability of such concrete structures under extreme conditions.