Bond performance of a deformed steel bar lying at the interface between old and new concretes was examined using both experimental and numeri- cal procedures. In the experimental study, fifty-seven Schmidt-Thro type specimens were tested to study the influence of…
Bond performance of a deformed steel bar lying at the interface between old and new concretes was examined using both experimental and numeri- cal procedures. In the experimental study, fifty-seven Schmidt-Thro type specimens were tested to study the influence of concrete strength (30 MPa - 100 MPa) and interface conditions on the side split type bond behavior. In a numerical study, specimens were modeled using a smeared crack model and the fracture process simulated. Maximum bond stresses close to the experimental results were predicted for different specimens except for mono- . lithic specimens with concrete strengths higher than 70 MPa.