Estudo do uso de estruturas metálicas na Construção Civil em Campina Grande.

Abstract

Steel for civil construction can be made available in several ways by the steel industry. Among the most common forms are thin sheets, thick plates, rolled profiles, pipes, cables and steel bars (rebar). These shapes can be combined in a variety of ways, making metal structures up. The use of metal structures allowed much greater flexibility in designs for both architects and engineers. The metal structures allow the design of projects with more fluid forms and with curves, that apparently would not be possible to be constructed. While in conventional structures precision is measured in centimeters, in a steel frame the unit used is millimeter. This ensures a perfectly upright and level structure, facilitating activities such as framing and elevators, with a reduction in the cost of coating materials. The steel construction system is perfectly compatible with any type of closing material, both vertical and horizontal, from the most conventional (bricks and blocks, in-situ molded slabs) to prefabricated components (slabs and concrete panels, Dry-wall panels, etc.). As the steel structure is completely prefabricated, there is better organization of the site due to the absence of large deposits of sand, gravel, cement, wood and iron, and also the inevitable waste of these materials. The clean environment with less generation of rubbish offers still better conditions of safety to the worker, contributing to the reduction of the accidents in the site. In buildings where there is a need for a quick return on investment, such as hotels, the speed of construction is much higher than when done with concrete and therefore the financial return as well. Although the use of metal parts provides speed in construction, it is necessary to use a qualified technical team, for the reason that in case of errors in the execution, parts can be lost causing a considerably higher cost. In view of all these aspects, this work aims to make a studying about vantages and disadvantages in a steel structural buiding , discussing current technical standards and comparing the steel structure with other construction systems considering several parameters, among them the economy, safety and speed in the execution of the work.