Structural engineering is a field of engineering that deals with the design of any structural system. The purpose of which is to support and resist various loads. A physical object or system should be considered under structural engineering no matter what sort of science topics it applied or industrial sectors it covered, provided its main function is designed for loads resisting and energies dissipating.
Structural engineers ensure that their designs satisfy a given design intent predicated on safety (i.e. structures do not collapse without due warning) and on serviceability (i.e. floor vibration and building sway do not result in discomfort for the occupants. Structural engineers are responsible for making efficient use of funds and materials to achieve these goals.