Introduce el texto aquí

Introduce el texto aquí

1. TYPES

   • Truss structures
   • Suspended structures
   • Mass structures
   • Frame structures

2. CONDITIONS

   • Stability
   • Equilibrium
   • Tension
   • Torsion
   • Shear
   • Compression
   • Bending
   • Rigidity

3. ELEMENTS THAN INCREASE STABILITY

   • Stable
   • Centre of gravity

4. ELEMENTS THAN INCREASE RIGIDITY

   • Trussing
   • Sections
   • Stay cables
   • a Brace

5. FORCE

6. STRESSES

7. STRENGTH