ABSTRACT
There are several bond performance tests that are commonly used for steel reinforcement in concrete namely, bar pull-out test, beam bond test, beam end bond test. Experimental testing can be time consuming and material consumption is high, hence numerical models of the bond behavior of steel bar to concrete have been developed that can provide opportunity to simulate multiple parameters efficiently and cost effectively. The numerical analysis allows for the local bond stress and slip characteristics to be determined. Local bond stress versus slip relationships are needed to be able to simulate the behavior and deformations of concrete infrastructure, such as bridges under various loading conditions and environments using finite element analysis techniques. This paper presents a numerical model that adopts coupling finite elements to represent the contact behavior of steel to concrete. The ability of the numerical model to simulate the bond is compared to experimental results from a series of beam bending bond tests.
