Journals Proceedings

Abstract

In this paper the developed of an experimental building system using prefabricated elements for a low-cost resistant dwelling, is described. Prefabricated box-shaped ferrocement blocks, measuring 1000 x 500 x 12 mm and 500 x 500 x 12 mm, both with 25 mm of wall thickness were manufactured. The dimensions of the prefabricated blocks were kept as small as possible in order to allow one or two people handle them without need of special equipment. Connections between blocks were bolted in order to avoid the use of mortar and therefore produce a water-free system ideal for self-construction. In order to ensure the structural safety, the stresses distribution resulting from the application of axial and shear loads on walls sections, as well as loads on a roof section were evaluated through finite element models. The information gathered from the finite element analysis served to design loading tests carried out in real scale walls and roof sections. The results from the computer analysis indicated that the critical areas were the bolted connections, which were subjected to high concentration of stresses as it was corroborated during the experimental tests. Finally, the structural performance and economic feasibility was proven with the construction of a real scale prototype dwelling.