Man made structures

Man made structures

1. massive st

   • Were carved of rock or were built by stacking,lintels are used to make windows

2. vaulted st

   • Are formed by arches and vaults.The romans used round arches to build bridges

3. triangular st

   • are made for bars of wood or metal. They are not easily deformed

4. suspended st

   • The type of structures uses cables are called suspenders which the st hangs from.
     • When they can be ajusted they are called tension members,cables are used to fasteen bridges

5. reinforced concrete st

   • Concrete led to major advances,concrete resist compression and with rebar
     • Under the floor there are slabs
       • Slabs transfer your weightto the beams and then to the columns
         • Between the columns and the ground are the foundations
   • laminated st
     • These are formed by metal or plastics.Their curved shape and folds give them their strength
     • Pneumatic st
       • Are light and easy to transport.When they expand they stretch the outer plastic surface.
       • Spatial and geodesic st
         • these are 3 dimensional structures of bars,which combine the properties of vaults
           • with triangulated structures to create cuerved shapes.

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