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CREEP AND SHRINKING OF CONCRETE ACCOUNTING ACCORDING TO SP 5.03.01-2020 WHEN ANALYSIS OF REINFORCED CONCRETE STRUCTURES BASED ON DEFORMATIONAL ANALYTICAL MODEL

CREEP AND SHRINKING OF CONCRETE ACCOUNTING ACCORDING TO SP 5.03.01-2020 WHEN ANALYSIS OF REINFORCED CONCRETE STRUCTURES BASED ON DEFORMATIONAL ANALYTICAL MODEL

Abstract

The shrinkage and creep properties of concrete are characterized by the ability to deform over time without changing of external loads. These concrete properties affect the stress-strain state of reinforced concrete elements. Depending on the type of reinforced concrete structure (beams, columns), the effect of shrinkage and creep on the stress-strain state is also different. The article presents the results of the analysis of the stress-strain state of normal sections of reinforced concrete elements, taking into account shrinkage and creep deformations of concrete, based on a deformation design model, applicable to analyze the parameters of deformations and cracking of reinforced concrete elements with an arbitrary shape of the cross section, any arrangement of reinforcement within the section. Свойства усадки и ползучести бетона характеризуются способностью деформироваться с течением времени без приращения внешних нагрузок. Данные свойства бетона оказывают влияние на напряженно-деформированное состояние железобетонных элементов. В зависимости от вида железобетонной конструкции (балки, колонны), отличается и влияние усадки и ползучести на напряженно-деформированное состояние. В статье приводятся результаты анализа напряженно-деформированного состояния нормальных сечений железобетонных элементов с учетом деформаций усадки и ползучести бетона на основе деформационной расчетной модели, применимой для вычисления параметров трещинообразования и деформаций железобетонных элементов при произвольной форме и компоновке поперечного сечения, любом расположении арматуры в пределах сечения.

Keywords

shrinkage of concrete, deformation design model, трещиностойкость, ползучесть бетона, деформационная модель расчета, усадка бетона, creep of concrete, железобетон, reinforced concrete, crack resistance

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
hybrid