Open AccessCalculated assessment of the impact of geometric deviations from the design on the parameters of mechanical safety of building metal structures within the framework of scientific and technical support for construction
Author(s) -
Alexander M. Belostotsky,
Белостоцкий Александр Михайлович,
Dmitry S. Dmitriev,
Дмитриев Дмитрий Сергеевич,
Sergey O. Petryashev,
Петряшев Сергей Олегович,
Tatyana E. Nagibovich,
Нагибович Татьяна Евгеньевна
Publication year - 2021
Publication title -
stroitelʹnaâ mehanika inženernyh konstrukcij i sooruženij
Language(s) - English
Resource type - Journals
eISSN - 2587-8700
pISSN - 1815-5235
DOI - 10.22363/1815-5235-2021-17-1-19-29
Subject(s) - frame (networking) , tower , structural engineering , computer science , engineering , mechanical engineering
An important part of scientific and technical support of civil engineering facilities at a construction stage - evaluation of influence of fluctuations from a designed geometry onto mechanical safety parameters of load-bearing metal structures - is considered. A multi-tier structure (industrial frame tower) is employed to demonstrate main features of such an assessment. Given is an approach to an analysis of as-built documentation and to a choice of most significant fluctuations of structural metal elements from a designed geometry. Effect of erection sequence being taken into consideration, the so-called genetic non-linearity, during computational estimation of a stress-strain state of metal structures mounted with deviations from their design positions is investigated. Results of static and dynamic analyses of designed and as-built (with geometry fluctuations taken into consideration) models of the multi-level industrial frame tower are obtained and compared with each other. Basing on these results, guidelines for computational assessment of effects of fluctuations from a designed geometry onto mechanical safety parameters of similar frame systems are formulated.