Given the increased use of steel profiles in our area, used in many cases without experience, which becomes a threat that could affect the safety of people. The start of this work will serve as a guide for all professionals interested in increasing their knowledge and to begin calculation and design of structural elements using composite sections; the calculation and design of composite sections, specifically mezzanines built with composite slab on beams, concrete -filled tubular columns using the LRFD method, model an structure that was calculated using steel sections only.
The results of the two analyzes are tabulated and compared; the weight of the steel that is necessary when using steel elements only against the weight of the steel that is necessary when the steel is calculated working with concrete.
