Comparison of the Interfacial Bond Strength Behaviour using Shear Key
Journal Title: GRD Journal for Engineering - Year 2016, Vol 1, Issue 0
Abstract
Many of the existing reinforced concrete structures throughout the world are in urgent need of strengthening, repair or reconstruction because of deterioration due to various factors like corrosion, lack of detailing, failure of bonding between beam-column joints, increase in service loads, spalling, loss of strength, deflection, etc., Retrofitting techniques have changed the old scenario to construct the new structure always by demolishing the damaged one. Retrofitting is the modification of existing structures to make them more resistant to external force quantities. The objectives like higher loading requirements; damage by accidents and environmental conditions, rectification of initial design flaws, change of usage can be achieved by retrofitting. Though, retrofitting technique have many significant advantages, suffers from a limitation that sometimes can occur which is debonding and BOND SLIP. Thus in this paper, efforts have been made to identify the parameters which plays a major role for causing bond slip and solution have been tried to find out for limiting the same. In this paper efforts have been made to study the bond slip phenomenon in different variety of retrofitted specimen such as jacketed specimen without any bonding agent (Specimen _N) and jacketed specimen with SBR and shear key (Specimen _SK). After performing experiments, the bond strength was evaluated in both of the cases and has given satisfactory results.
Authors and Affiliations
Karan Shah, Rohit Tripathi, Deval Master, Abhay Yadav
Keywords
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