Avaliação do desempenho acústico em painéis de vedação em Light Steel Framing

Abstract

The performance of a building involves several aspects, like as comfort, safety, durability, among others. In this context, acoustic performance presents itself as a fundamental item to be evaluated in a construction, since the growth of the city, the increase in the number of vehicles and, consequently, noise pollution, promotes the need for buildings with ever better protections sounds. The Light Steel Frame, although not a new technology, has arrived in Brazil with greater intensity in recent years, generating the need for studies on such technology. Thus, the acoustic performance of eight different LSF modulations was evaluated in order to compare values with three types of masonry fences very common in the country, which allowed to obtain the sound absorption capacity of each of the modulations and the verification of which is the most efficient with regard to sound insulation. In addition, it was possible to verify which types would be ideas for indoor environments subjected to a sound pressure equivalent to the sound of intense traffic. It was found that none of the types of fences assessed had sufficient performance to be used in homes in high traffic areas of vehicles and people and that masonry modulations had worse sound protection capacities. Finally, a survey was conducted with civil society and civil engineers to learn their opinions on issues ranging from the arrival of new materials in Brazil to more technical questions.