Adequação do projeto de uma residência unifamiliar com o sistema construtivo light steel framing e análise de custo

Abstract

With the increase of population growth and technology advancement, the Brazilian construction industry seeks alternatives to the conventional buiding system that has as its main feature a greater industrialization. This yields to an increase of the efficiency of the workforce, reduces waste, and achieves cleaner construction to meet a growing demand. The Light Steel Framing system is an alternative that fits all of these features, but requires proper design and more precise execution. In this way, this work consists of a design adjustment for a house in Light Steel Framing to make it more adequate and efficient than the original project, focusing on replacing the roofing system and improving the hydrosanitary system. This adjustment consists in the use of other types of roof system in relation to the original project, which resulted in the reduction of roof loads and the creation of a tower for the reservoirs in order to obtain an adequate available pressure. With the creation of the tower for the reservoirs, an adequate water pressure was obtained at each point of use, and providing a better standardization of the water pipe diameters, in relation to the original design. With the reduction of the roof loads with the use of new roofing systems, the weight of the roof steel profiles was reduced. Finally, it was found that with the creation of the tower to the reservoirs the cost was only about 3% more expensive than the original design, which is little if we consider the improved hydraulic efficiency and adequate space to carry out cleaning and maintenance of the reservoirs. And it worths mentioning that the inputs of the Light Steel Framing system tend to become more accessible and less expensive, and in the future will be a more viable option for the region considered.