Planning and analyzing any structure before implementation is structure engineering. A structure could be any masterpiece in the world a building, machine or industrial project. Structural engineering study can benefit structures like building, pipeline projects, bridge evolution, or special mechanical structures such as vehicles or aircraft industrial structures.

Towers are tall structures that are virtually always taller than they are wide, often by a major margin. Towers are typically built to milk their height, and can stand alone or as a part of a bigger structure. A modern kind of tower, the skyscraper, uses less ground space as a proportion of total building interior sq footage.Skyscrapers are commonly not categorized as towers, though most have the same design and structure of towers.

Structural elements are elements that are used in structural analysis to break a complex structure into simple elements. We cannot decompose the elements into different kinds within the structure.Structure elements may be linear, volumes or surfaces. We can categories linear elements as;

A roof is the covering on the uppermost part of a building.A roof protects the building and its contents from the results of weather. Structures that need roofs range all the way from a letter box to a cathedral or stadium, dwellings being the most common.In most states a roof protects essentially against rain. Relying on the character of the building, the roof might also defend against heat, daylight, cold and wind.