Análise numérica de sistemas de fôrmas de madeira para pilares de concreto armado

Abstract

In the execution of several structures of concrete, from the simplest to the most complex, temporary structures are needed to shape and sustain these concrete structures until they are self-supporting. These structures are composed of formwork systems, which can be wooden, metallic, plastic, mixed, among others. In order to contribute to the optimization of the wooden formwork systems commonly used in constructions, this research makes numerical analyzes and simulations, based on the finite element method, of various configurations of formwork systems for concrete pillars. In addition, the study also seeks efficient solutions from the technic, financial and practical points of view for the use of wood structures in the execution of pillars, taking as a starting point, guidelines in ABNT NBR 15696:2009. Factors were stipulated for the realization of sizing of formworks for pillars, including the development of equations, that make simplification of calculations possible. Also, comparisons of different formworks configurations were made, defining the most viable models for execution.