ABSTRACT

This chapter addresses two examples of the application of numerical tools in structural analysis. Also it is possible to study the effect of adhesion between steel and concrete. Global analyses of bond-slip behaviour using fracture mechanics and finite elements have been carried out by, among others, Ingraffea et al., Rots and Mazars et al. In such analyses, usually the pull-out of a single reinforcing bar in concrete or the behaviour of a so-called tension-pull specimen is analyzed. In fracture mechanics-based analyses, normally the cracking of the concrete surrounding the rebar is the main source of the observed macroscopic bond-slip behaviour. Ingraffea and co-workers were the first to apply fracture mechanics tools for studying bond-slip phenomena. The numerical tool could be adopted in bond-slip experiments with the purpose of determining bond stress-slip relations for different types or rebars, concrete covers and different concrete qualities.