structures

structures

1. types

   • mass structures
     • dams
   • truss structures
     • electric pylons
   • frame structures
     • buildings
   • suspended structures
     • bridges

2. conditions for strong structures

   • rigidity
   • equilibrium
   • Stability

3. types of stress

   • compression
   • tension
   • bending
   • torsion
   • shear

4. elements that increase rigidity

   • trussing
   • a brace
   • stay cables
   • sections

5. forces, stresses and streng

6. strengthening elements

   • its strength depends on:
     • the types of forces
     • the shape of the structure
   • how do we obtain strong structures?
     • making them more stable
     • making them more rigid

7. Elements that increase stability

   • widening the base
   • locating the centre of gravity
   • making a good foundation for the structure
   • suporting the estructrures by cables

8. Elements that increase rigidity

   • trussing (triangles)
   • putting braces
   • putting stable cables
   • putting sections