ВІДНОСНО НОВОЇ РЕДАКЦІЇ ДБН В.1.2-14:2018

Володимир Перельмутер; Сергій Пічугін

doi:10.33644/10.33644/2313-6679-08-2022-2

Володимир Перельмутер Докт. техн. наук, гол. наук. співробітник Науково- виробниче товариство SCAD Soft https://orcid.org/0000-0002-7633-9620
Сергій Пічугін Докт. техн. наук, професор Національний університет «Полтавська політехніка імені Юрія Кондратюка» https://orcid.org/0000-0001-8505-2130

DOI: https://doi.org/10.33644/10.33644/2313-6679-08-2022-2

Keywords: reliability of structures; responsibility class; limit state; load specification; combination of loads; accidental influences; maintenance; nonlinear analysis.

Abstract

The paper is devoted to the harmonization issues of
national regulatory system and European standards
in the field of reliability of civil structures. This was
initiated by new DBN B.1.2-6 "Basic requirements
for buildings and structures. Mechanical resistance
and stability ". This basic regulation together with
the planned new revision of the main regulatory
document on the problems of reliability and safety
DBN B.1.2-14 "System for ensuring the reliability and
safety of construction sites. General Principles" should
be considered as an analogue of EN 1990 "Basis of
Structural Design ". The paper compares the three
above-mentioned regulations, finds discrepancies
between them and formulates problems that need
to be developed when completing a new revision
of DBN B.1.2-14. The proposals for the division of
buildings and structures by classes of responsibility are
substantiated. A new approach to of loads is specified,
the choice of representative values of variable actions

is analyzed. It is shown that for the transition to
new rules for load combinations of EN 1990, it is
necessary to conduct special comparative calculations
of structures to make an informed decision on the
content of the relevant section of DBN B.1.2-14: 2018.
Effects of accidents are addressed separately. Concepts
of failure limit states and serviceability limit states are
extended with regard to division into reversible and
non-reversible states. The importance of choosing
the appropriate values of the failure probability of
structures is emphasized. It is proposed to adopt a
general approach of EN 1990, which corresponds to
the system of large volume design, and to provide the
optimal level of reliability for unique projects. There
is a table of reliability index and failure probability
values for basic periods of 1 year and 50 years for
sites of different consequence classes. It is emphasized
that the regulation on reliability must have a section
devoted to maintenance. There is information on
the difference between methods of strength testing in
linear and nonlinear cases.

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