Metallic structures
They are classified very simply: into main metal structure and secondary metal structure. This classification depends on the role they play within the work in which they are going to be used. The main structure, for example, is responsible for stabilizing and transferring loads to the ground.
What conditions must a metal structure meet?
Rigidity: The structure should not deform when forces are applied to it. Resistance: Each of the elements that make up the structure must be able to withstand the force without deforming or breaking. Stability: that the structure is stable.