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DOI: https://doi.org/10.63345/ijrmeet.org.v14.i3.6
Sonal Vijay Bhosale
Research Scholar
Department of Civil Engineering, Vikrant University Gwalior
Dr. Kamal Sharma
Professor
Department of Civil Engineering
Vikrant University Gwalior
Abstract— The proliferation of asymmetrical global threats and industrial hazards has accelerated the demand for resilient structural design against impulsive loading. This investigation pro- vides a rigorous finite element analysis (FEA) of precast reinforced concrete wall-to-column connections subjected to high-intensity blast pressures. The study specifically evaluates the structural efficacy of replacing conventional unheaded dowels with optimized mechanical anchors—including plain, grooved, and ribbed headed profiles embedded within a Steel Fibre Reinforced Concrete (SFRC) matrix. A comprehensive parametric array comprising 20 distinct numerical models was executed via ANSYS Workbench to assess the influence of reinforcement density (ranging from 2 to 8 bars) and a 1.5% volumetric fraction of steel fibres. Computational data indicate that transitioning to grooved and ribbed headed anchors mitigates total dynamic displacement by up to 27% over standard dowels. Furthermore, the highest-density ribbed configuration integrated with SFRC minimized maximum deformation by over 60%, significantly enhancing energy dissipation and structural ductility. The numerical framework was robustly validated against analytical derivations, demonstrating a highly accurate margin of error of merely 2.92%.
Keywords— Blast Mitigation, Precast Concrete Systems, Steel Fibre Reinforced Concrete Mechanical Anchors, Finite Element Analysis, Structural Ductility.
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