Stability exposure of building structural systems under environmental damage
Journal: Structural Mechanics of Engineering Constructions and Buildings (Vol.18, No. 6)Publication Date: 2023-02-13
Authors : Sergey Savin; Natalia Fedorova;
Page : 564-572
Keywords : reinforced concrete; column; corrosion; load capacity; exposure; slenderness ratio;
- Stability exposure of building structural systems under environmental damage
- Cluster formation of ash and slag waters for production of building materials as a measure of environmental damage
- 71 Damage Absorption of High-Impact Structural Systems using Time-Reaction of Hybridized Epoxy-Polyurea Interfaces
- Effects of tillage and cropping systems on the structural stability and soil organic matter in semi-arid areas of Morocco
- Constructive Process of using plates OSB (Oriented Strand Board) in sustainable structural systems in a Residential building in the city of Manaus - AM
Abstract
Environmental impacts on reinforced concrete structures may cause a decrease of in resource of their robustness under design and unforeseen actions. The research in this field mainly focusses on investigation of the behavior of bending elements as eccentrically compressed and damaged by corrosion reinforced concrete elements such as columns require more intensive investigation. Thus, the study has the purpose to assess the influence of the depth of corrosion on the bearing capacity of eccentrically compressed reinforced concrete columns of building frames, as well as to evaluate the time for exhaustion of load capacity. The phenomenological model, which was proposed by V.M. Bon- darenko, has been adopted in order to account long-term processes of corrosion damage. The study established an increase in the depth of corrosion damage leads to a decrease in the bearing capacity of eccentrically compressed reinforced concrete columns since the effective cross-sectional depth decreases which makes column more flexible. The relative cross-sectional depth lost strength resistance resource due to corrosion varies depending on the current stress-strain state of the reinforced concrete column that is adaptation mechanism of the structure to long-term actions. The exposure of building structural systems under environmental damage depends significantly on the parameters of the action as well as the stress-strain state of the structural element. The paper established that it may differ by several times depending on avalanche or clogging damage scenario.
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Last modified: 2023-02-13 22:46:41