Man-Made Structure

Man-Made Structure

1. Reinforced concrete structure

   • Concrete to major advance in construction because it could it be made into any shape .Concrete and with steel rebar frameworks it can also bear traction
     • Under the floor you are on there is a horizontal structure calle slabs, which consist of small beams called joists. the slabs transfer your weight to the ( made of concrete and steel rebar) and then to the columns (vertical supports)

2. pneumatic structures

   • Pneumatic structures are light and easy to transport,set up and dismantle for this reason.These structures use compressed air inside them .When they expand, they stretch the outer plastic surface.This makes them stay upright

3. Laminated structures

   • These are formend by laminates of metal, plastic or composite materials like reinforced concrete.Their curved shape and folds give them their strength.
     • The curved shape makes laminates bear the stress of traction and compression on their surface
     • The folds and ribs give rigidity in exac points

4. Spatial and geodesic

   • These are thee-dimensional structures of bars, which conbine the properties of vaults with triangulated structures to create shapes and covers large spaces

5. suspended structures

   • This type of structure uses cables, called suspenders which the structure hangs from .When they can be adjudted ,they are called tension members. Cables are used to fasten bridges marquees, antennas and towers. The are many kinds of suspended structures which can cover large space like stadiums and pavilions, without the need for columns or pillars

6. Triangular structures

   • These estructures are made from bars , normally metal or wooden.These use of triangular shapes means they are not easily deformed.This makes them ideals for building bridges (triangular beams), covered with large trusses and vertical structures

7. Massive structeres and lintels

   • The first man-made structures were carved from rock or built by stacking rocks or other materials. This left littel space between theme, like in the Mayan or Egyptian pyramids.

8. Vaulted structure

   • With arches and vaults, builders could cover larger spaces and have bigger gaps in the structure
     • Arches
       • Curved structural element that joins two pillars together
     • Vaults
       • Covered with a curved shape that closes a space between two walls or supports
     • Dome
       • Covered in a hemispherical shape that closes a central or circular space
   • VaVaulted structure are formed by archesand valts using stones that are cut in such a way that the only stress they support is compresion -no problem forhard stone

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