Increase of seismic resistance of buildings due to spiral reinforcement of bent reinforced concrete structures

DOI: 10.37153/2618-9283-2022-3-31-39

Authors:  
Rubric:     Theoretical and experimental studies   
Key words: spiral reinforcement, compressed zone, reinforced concrete beams, triaxial compression, bendable structures
Annotation:

This article presents the results of the analysis of previously conducted studies of the stress-strain state of bent reinforced concrete structures with reinforcement of the compressed zone with spirals with a pitch of turns of 30, 50, 75, 100 and 150 mm. In addition, data on numerical studies of bent beams with rod and spiral reinforcement of the compressed zone using the finite element method in the Ansys Mechanical software package are presented. The obtained results due to the work of concrete in spirals in a complex stressed state can significantly increase the seismic resistance of buildings, as well as the bearing capacity of monolithic and precast reinforced concrete structures under the action of high-intensity dynamic loads.

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