Calculadora de Perfil U® : aplicativo para cálculo da força axial resistente de cálculo em perfis de aço formado a frio do tipo u simples

Abstract

Steel structures have become popular in Brazil due to their speed of execution, low aggression to the environment, and rationalization of the construction site. In this scenario, it is possible to highlight the Cold-Formed Steel Profiles, which are formed by thin steel sheets bent by profiling or roller bending. What gives excellent inertia to weight ratio. However, in the search for efficiency, there is a tendency to use increasingly slim sections, which creates new engineering challenges. Because they have a very high widthto-thickness ratio, CFSs may suffer from instabilities like global, local, and distortion buckling, which make it difficult to size. Programming, on the other hand, appears to the designer as an instrument of assistance in the exercise of the profession. From it, computational tools capable of performing calculations of high theoretical complexity can be created. Thus, the present work shows the development of an application for Android® devices, that aims to be practical and intuitive, making the design of coldformed structures profiles more accessible for young professionals and students. Once the application tests have been completed and their results validated through comparison with the analytical model and commercial software, one can conclude that the application meets the research objective. It is, therefore, a reliable and simple tool for calculating the axial resistance of cold-formed steel U-sections