Introduce el texto aquí

Introduce el texto aquí

1. Types

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

2. Elements that incrase stability

   • Stable
   • Centre of gravity

3. Conditions for strong structures

   • Stability
   • Equilibrium
   • Rigidity

4. Strength

   • Strengthening elements

5. Force

6. Stresses

   • Types of stress
     • Compression
     • Torsion
     • Tension/traction
     • Bending
     • Shear

7. Elements that increase rigidity

   • Brace
   • Stay cables
   • Trussing
     • Triangle
     • Diagonal bar
   • Sections
     • Breams
     • columns
     • Types
       • Open sections
         • L-shaped
         • T-shaped
         • U-shaped
         • I-shaped
       • Closed sections
         • Round
         • Triangular
         • Square