Man-made Structures

Man-made Structures

1. Vaulted structures

   • Builders use arches and vaults to cover larges spaces and gasps in the structures. Vaulted structures are formed by arches and vaults using stones, that are cut in a way that the only stress they support is compression

2. Massive structures and lintels

   • The 1st one man made structures were built by stacking rocks or other materials .Short stone or wooden lintels were also used to make windows and open spaces
     • Short stone or wooden lintels were also used to make windows and open spaces

3. Pneumatic structures

   • These are light and easy to transport,set up and dismantle.The air is compressed inside them , when they expand a is they stretch the outer plastic surface. This is why they make it upright
     • the air is compressed inside them , when they expand a is they stretch the outer plastic surface. This is why they make it upright 

4. Reinforced concrete structures

   • They are used because it could be made into any shape. Concrete resist compression with steel rebar frameworks
     • Concrete is used in most types of construction Under the floor, there is a horizontal structure called slabs

5. Spatial and geodesic structures

   • This are 3D structures of bars,which combine the properties of vaults, with triangulated structures to create curved shapes and cover large spaces

6. Triangular structures

   • These structures are made of bars normally metal are wooden so them are not easily deformed , they are covered with trusses and vertical structures, like towers and scaffolds

7. Suspended structures

   • This types cables are called suspendenders, because they hang from them, when them can be adjusted they're called tension members.Cables are used to fasten bridges , marquees, antennas and towers

8. Laminated structures

   • These are formed by laminates of metal like reinforced concrete.Their curved shape give them strength

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