Abstract:The current paper studies the force transfer mechanisms in retrofitted columns containing dowels crossing the interface of old and new concrete. It includes 10 specimens of square section (150x150x500mm) of 24,37 MPa nominal concrete strength with 4 longitudinal steel bars of 8mm diameter (500 MPa nominal strength) and different transverse reinforcement ratios (ω c = 0,075, ω c =0,15 ). All columns were subjected to initial axial compression up to maximum load. After repair with thixotropic high strength concr… Show more
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