structures

structures

1. mass structures

   • solid
     • walls
   • sturdy
     • dams

2. frame structures

   • might be
   • building

3. truss structures

   • cranes
   • electricity pylons

4. suspended structures

   • bridges
   • tents
   • marquees

5. conitions for strong structures

   • rigity
     • rigid
     • equilibrium
     • stability

6. types of stress

   • compression
   • tension
   • bending
   • torsion
   • shear

7. mass tructures

   • trussing
   • brace
   • stay cables
   • section
     • open section
     • closed section