Análise teórica e experimental de barras rosqueadas e vergalhões ancorados em concreto com resina epóxi.

Abstract

The work presents comparisons between results obtained experimentally and through the calculation methods. Sixteen concrete blocks was executed to anchor one bar per block, and using epoxy adhesive. Three different types of composition of concrete were achieved, reaching average resistance of 33.78 MPa in the first trace, 35.28 MPa in the second and 55.80 MPa in the last trace. In order to analyze the different means of rupture, the following calculation methods were used (ACI 318: 2014, McVay et al., Cook et al., Cook, Marti, and Elijahausen et al.). Two modes of rupture were reached, being the rupture by cracking of the block and the rupture by flow of the bar. The experimental data are compared with the theoretical results through seven calculation methods present in this research, being observed that the method of Eligehausen et al. and the Cook method, elastic bonding, were the ones that most approached the average results obtained experimentally.