CREEP AND SHRINKING OF CONCRETE ACCOUNTING ACCORDING TO SP 5.03.01-2020 WHEN ANALYSIS OF REINFORCED CONCRETE STRUCTURES BASED ON DEFORMATIONAL ANALYTICAL MODEL
DOI:
https://doi.org/10.36773/1818-1212-2021-125-2-7-12Keywords:
shrinkage of concrete, creep of concrete, reinforced concrete, deformation design model, crack resistanceAbstract
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.
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