Abstract
This paper describes the parametric analysis applied to assess the influence of column anchorage-reinforcement length on concrete two-pile caps under uniform compression. The non-linear numerical analysis was conducted with the bi-dimensional elements of ATENA 2D software, considering perfect adherence between steel and concrete. Simulation was based on the experimental reference model by Munhoz [1[1] MUNHOZ, F. S. Experimental and numerical analysis of rigid two-pile caps with square and rectangular column and different rates of column reinforcement. Thesis (Doctored). São Carlos School of Engineering, University of São Paulo. São Carlos, Brazil, 2014. (in Portuguese).], which was the parameter adopted to validate the numerical modeling. From the validated model, four different anchorage reinforcement lengths were adopted, 34,0 cm, 20,0 cm, 10,0 cm e 3,0 cm, in order to compare pile caps behavior after these changes. Pile cap simulations presented similar behavior, i.e., column anchorage reinforcement length is not a preponderant factor for the internal mechanisms that regulate the function of these elements.
Keywords:
reinforced concrete; pile caps; anchorage; numerical analysis; finite elements
