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A structure is a set of elements arranged in a way to support the weight of a body mantaining its shape

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A structure is a set of elements arranged in a way to support the weight of a body mantaining its shape

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Is a structured formed by the animals and the nature. For example a honeycomb, a skeleton or a tree

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Are structures made up from humans. For example a building, a bridge or a table.

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They are solid, heavy and very sturdy. Like walls, dams, etc...

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Cable-stayed or suspension structures (Estructuras atirantadas o suspendidas)

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Cable-stayed or suspension structures (Estructuras atirantadas o suspendidas)

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These structures are held in place by stay cables, usually made from steel.

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These are constructed with lintels. A lintel is a horizontal beam placed on vertical supports used to cover spaces. Dolmens of Egypt and Grece

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Arched and vaulted structures (Estructuras arqueadas y abovedadas)

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Arched and vaulted structures (Estructuras arqueadas y abovedadas)

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They are formed by stone blocks supported by their own weight. They are used to cover sapce between to walls

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These are formed by canvases stretched by compressed air. They have been developed in recent years and are used for pavilions.

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Formed by pillars and beams that are connected

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The trussed structuresare formed by bars arranged to form triangles. They are weightless

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Laminar structures are made up of sheets that form a protective housing and support

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Caused by two forces acting on a body, tending to flex or bend it.

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Caused by two oppositely directed forces acting on a body along very close lines of action, tending to cut it

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Caused by two oppositely directed forces acting on a body, tending to flatten it or reduce its length or thickness.

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Tension or traction (Tensión o tracción)

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Tension or traction (Tensión o tracción)

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Caused by two oppositely directed forces acting on a body, tending to stretch it.

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Caused by two oppositely derected forces acting on a body, tending to twist it.

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The stability of a structure depends on the position of its centre of gravity. The centre of gravity is the point where the weight of an object is considered to be concentrated.
If we locate the centre of gravity of the structure at a point close to the base we will have more stability. Also by widening the base of the structure. We can also make a good foundation for the structure and support the structure with stay cables

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A structure must resist to stresses to which it will be subjected.
To improve the strength of a structure we mist use the best materials.
We can also use sections. Sections are long construction elements that are used to seve materials and are just as resistant to stresses.

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To create a more rigid structure we can add strengthening elements to it, such as diagonal bars, to truss it.

Trussing is a method for making weak structures more rigid. It works because the triangle is the only figure that cannot be deformed. Therefore, structures that have a triangular shape are rigid.