Paredes de Concreto Armado: Síntese do Método Construtivo e Dimensionamento

Abstract

Reinforced concrete structures are one of the most used building systems in Brazil when compared quantitatively to wood, steel or mixed. In most constructions, structural elements of reinforced concrete, which make up a superstructure, form a kind of skeleton where they are supported, almost “hierarchically”, in a traditional sequence of flat, linear and volumetric elements. The slabs supported on beams, the beams on pillars and these on foundations, exemplify the sequence. However, some alternative construction methods can interrupt this supposed “hierarchy” and also prove to be efficient. The use of reinforced concrete structural elements to close gaps, such as reinforced concrete walls, has been shown to be an alternative to the conventional system of brick walls. In the case of a self-supporting structure, these receive the loads from the slabs and transfer them directly to the foundation elements, therefore eliminating the support beams or belt beams. Therefore, in a thinking within a constructive and innovative context, an alternative system for small and medium-sized buildings is that of cast-in-place reinforced concrete walls. This system provided construction companies with a reduction in operating costs and, above all, faster productivity. In view of this, this work presents a productive systematic of cast-in-place reinforced concrete walls, addressing the main construction stages, the current national normative prescriptions, ending with the idealization of two numerical examples of calculation. It should be noted that this work is not intended to replace existing textbooks, handouts or technical-scientific articles that deal with the subject in a broader way, but the fact of succinctly presenting this constructive system.