MAN- MADE STRUCTURES

MAN- MADE STRUCTURES

1. MASSIVE STRUCTURES AND LINTELS

   • The first man-made structures were carved from rock or were built by stacking rocks or other materials. Short stone or wooden lintels were also used to make windows and open spaces.

2. VAULTED STRUCTURES

   • Vaulted structures are formed by arches and vaults using stones that are cut in such a way that the only stress they support compression

3. TRIANGULAR STRUCTURES

   • These structures are made from, bars, normally metal or wooden.. This makes them ideal for building bridges, covered with large trusses and vertical structures

4. SUSPENDED STRUCTURES

   • This type of structures uses cables, called suspenders wich the structure hangs form. When they can be adjusted, they ae called tension members. Cables are used to fasten bridges, marquees, antennas and towers.

5. REINFORCED CONCRETE STRUCTURES

   • Concrete led advances in constructions. Concrete resists compression and with steel rebar frameworks it can be also bear traction.

6. LAMINATED STRUCTURES

   • These are formed by laminates of metal, plastic or composite material like reinforced concrete. Their curved shape and folds give them their strength. The folds and ribs give rigidity in exact points.

7. PNEUMATIC STRUCTURES

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

8. SPATIAL AND GEODESIC STRUCTURES

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

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