Man made structures

Man made structures

1. Massive structures

   • This structures are made from rock or were made by stacking rocks or other materials.Short stone or wooden lintels were also used to made the windows of this structures

2. Vaulted structures

   • This structures has very bigs gaps and larger spaces.This construction are formed by arches and vaults using stones that are cut in such a way that the only stress they compression, no problem for the hardstone. This type of structures used the romans.

3. Triangular structures

   • Are made of bars of metal or wood. This constructions use the triangule form because he help to don't deformed easily.This type of structures is fantastic to made bridges.

4. Suspended structures

   • This type of structures used cables called suspenders which the structures hangs from.Cables are used to fasten bridges marquees antennas and towers. There are many kinds of suspended structures which can cover large spaces like stadiums and pavilions.

5. Reinforced concrete structures

   • Concrete led the major advances in construction because it could be made into any shape.Concrete resist compression and with steel rebar frameworks it can also bear traction
     • Under the floor you are on there is a horizontal structure called slabs, which consist of small beams called joists and material between them.
     • The slabs transfer your weight to the beams ,this are made by concrete and steel rebar. And then to the columns(vertical supports).The columns don't sit directly on the ground because they would sink.Between the columns and the ground are the foundations which spreads out the weight of the building and its load

6. Laminated structures

   • This are made by laminates of metal,plastic or composite material like reinforced concrete.Their curved shape and folds give them their strenght .The curved shape makes the laminates bear the stress of traction compression on their surface.The folds and ribs give rigidity in exact points

7. Pneumatic structures

   • Pneumatic structures are light and easy to transport ,set up and dismantle.For this reason ,we use them in constructions like field hospitals or funfair attractions

8. Spatial and geodesic

   • These are three-dimensional structures of bars ,which combine the properties of vaults with triangulated structures to create curved shapes and cover large structures

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