structures

structures

1. types of structures :

   • mass structure
     • walls
   • frame structuture
     • beams
   • truss structure
     • cranes
   • suspended structure
     • marquees
   • exemples :

2. force

   • stresses
     • strength

3. materials

   • rigid
     • elastic
       • plastic
   • exemples
     • table
       • rubber
         • plasticine

4. conditions from strong structures

   • rigidity
   • equilibrium
   • stability

5. types for stresses

   • compression
   • tension
   • bending
   • torsion
   • shear

6. elements that increase stability

   • stable
   • centre of gravity

7. elements that increase rigidity

   • trussing
   • brace
   • stay cables
   • sections
     • open sections
       • L-shaped
       • T-shaped
       • U-shaped
       • I-shaped
     • closed sections
       • square section
       • triangular section