Structure - Is a set of elements arranged in a way that is appropriate for supporting the weight of a body and maintaning its shape , despite external forcea that may act on it, Skeleton  - in animal their is a structure that allows them to move and gives them their shape, Cranes  - used in construction to move loads since Ancient Greece, Mass structures - These are solid,heavy and very sturdy structures , Trussed structures  - These structures are formed by bars arranged to form tringles or trusses they are lightweightr but sturdy , Give shape   - to the object ,like the ribs of an ubrella, Protect - like the body of a car or the housing of a moblie phone , Raise  - such as construction cranes , skyscrapers or electricity pylons , Create spaces  - such as construction cranes, skyscrapers or electricity pylons, Cross spaces - such as bridges and viaducts, Truss  - is a bulliding element made up of bars arranged to form triangular structures , Laminar structures  - These are made up of sheets that form a protective housing and support , Geodesic structures  - These structure were invented by the architect Richard Buckminster Fuller and patented in 1954 R, Foundations - Are elements of reinforced concrete thet are set into the ground to spread the weight of the structures , Force - is an influence thet can deform a bpdy or changed its movement or produce motion in a body at rest , Stresses - Are the internal tensions that a body is sudjected to when different forces act on it , Compression - Caused by two oppositely directed forces acting on a body , tending to flatten it or reduce its length or thickness, Tension - caused by two oppositely directed forces acting on a body , tending to stretch it , Bending - Caused by two forces acting on a body , tending to flex or bend it , Torsion - Caused by two oppositely directed forces acting on a body , tending to twist it , Stability - Of a structures depends on the position of its centre of gravity , Stay cables - By supporting the structures with ,

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