An innovative methodology for restoration and strengthening of reinforced concrete structures via concrete overlay and its CAD-implementation during repairs and reconstruction
DOI:
https://doi.org/10.32347/2410-2547.2026.116.263-274Keywords:
concrete strengthening, concrete overlay, post-installed rebar, monolithic interface, building reconstruction, CAD/BIM-designAbstract
he present work introduces an innovative methodology for the restoration and strengthening of reinforced concrete structures through concrete layering, based on the application of advanced Hilti post-installed rebar and shear stud systems. The proposed approach enables the realization of full monolithic connectivity at the "old-to-new" concrete interface, ensuring effective shear force transfer in accordance with international technical reports EOTA TR 066 and TR 069. This methodology offers extensive possibilities for strengthening flexural and compression elements during building reconstruction, allowing for a significant reduction in embedment depth and optimization of material consumption without compromising structural integrity. Particular emphasis is placed on the integration of calculation algorithms into a unified digital environment through specialized software and modern CAD/BIM systems. Such digital implementation ensures a seamless design process: from processing non-destructive testing data of existing reinforcement to the automated generation of detailed 3D models of reinforced nodes within a CAD-environments. The adoption of this methodology minimizes risks and errors, guarantees the precision of reinforcement geometric parameters, and ensures high operational reliability of restored structures under complex loading conditions. The proposed solution serves as a versatile tool for engineers seeking to combine cutting-edge construction technologies with the advantages of automated design to enhance the longevity of the building stock.
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Prusov D., Lakshtanov A., Rokohon M. (2025) "An effective method of strengthening reinforced concrete structures with low shear resistance and its CAD implementation during building reconstruction" // Strength of Materials and Theory of Structures, No.115, P.315-324. URL: https://doi.org/10.32347/2410-2547.2025.115.315-324
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