Reinforcement of load-bearing reinforced concrete structures of high-rise buildings damaged as a result of seismic impact
Abstract
Reinforcement of load-bearing reinforced concrete structures of high-rise buildings damaged as a result of seismic impact
Incoming article date: 26.05.2025The article presents the results of static and dynamic calculations of a 14-storey administrative building with two underground floors. The building is located in the city of Sochi. The seismicity of the construction area is 9 points. As a result of calculations under seismic influence, characteristic isofields of movements of the building system in different directions, stress isofields in load-bearing monolithic reinforced concrete floors, and force plots in core elements were obtained. According to the results of the verification calculations of the load-bearing reinforced concrete structures of the building frame, it was revealed that the strength of the individual columns of the underground floors of the building is not ensured. Options for reinforcing columns using various options are presented: classic reinforced concrete cage, metal cage, pasting with composite tapes, steel-reinforced concrete cage. As a result of comparing all reinforcement options, the most optimal reinforcement option was adopted from the point of view of technology, economic feasibility and strength parameters.
Keywords: steel-fiber concrete, seismic, strength, reinforcement, dynamic calculation, cage, column, building, composite, comparison