Análise teórica e experimental do comportamento de consoles monolíticos curtos de pilares pré-moldados considerando a norma NBR 9062:2006 e um método alternativo

Abstract

Looking for alternative methods aiming high productivity and reduction of costs, most companies of prefabricated structures in Pato Branco city (southwestern Paraná region) adopt alternative ways to solve the execution of short consoles of prefabricated pillars, due to the constructive difficulty in adopting the armor arrangement specified in the standard NBR 9062: 2006. However, alternative ways have a empirical character, although widely used in constructions of the region without any proof of bearing capacity. In this sense, this study includes the experimental testing of prototypes in real size of prefabricated pillars with short consoles, comparing the load bearing capacity of pillars containing the arrangement specified in the standard and executive solutions adopted by the company in the region, as well as the analysis of the strengths and weaknesses of each method. The experimental results demonstrate significant differences between the studied configurations. However, these alternative methods found by the companies are likely to be used, since a previous study is conducted for verification and confirmation of the acting loads.