Projeto de cobertura em estrutura metálica do tipo SHED para o Núcleo de Automação e Processos de Fabricação (NAFA)

Abstract

Nowadays, the Center of Automation and Manufacturing Processes (NAFA) is space composed by Mechanical Engineering laboratories connected to the Technology Center (CT) of the Federal University of Santa Maria (UFSM). The NAFA physical structure is covered by a Shed type roof build near 1960, which is in an inappropriate state and offering risk of damage to the building, equipment and people. Within the problems identified, there are damaged rain gutters and roof tiles and water infiltration. Besides, the roof structure is not safe for maintenance actions and window mechanisms are outdated. The objective is designing a new shed type metallic roof in order to replace the old one. For this, a literature review was made focusing the basic concepts around steel structures, structure’s sizing and the analysis of existing structures. Furthermore, norms NBR 8800:1986 (Design of steel structures and steel and concrete structures for buildings) and NBR 6123:1998 (Forces due to wind in buildings) were reviewed and taken into consideration on the project. The methodology consists in defining the boundary conditions so as the project limitations, analyse the actual roof conditions, design the concept of a new roof, define sizing criteria, size the new roof concept and describe the manufacturing details. As a result, detailed design of a metallic roof was developed including size definitions, technical manufacturing and assembly drawings and materials list required for the project execution. The new roof attended all norms that apply in terms of safety and structure, solving in theory the existing problems on the old structure.