Structure

Structure

1. Forces

   • Anything that can deform a body or change is state or rest or movement
   • Loads
     • Force that acts on a structure.
     • They cause
       • Stresses
         • Types
           • Tracton
             • Load tesnt to strech the structure
           • Compression
             • Load tends to flatten or compress the stucture
           • Bending
             • Load tends to bend the structure
           • Torsion
             • Load tends to twist the structure
           • Shear
             • Load tends to shear the structure

2. Types of structures

   • Natural:Are the ones created by nature.
   • Artificial:Are the ones created by humans.

3. Set of elements in a body that are intended to resist the effect of the forces that act on it.

4. Conditions for a structure to work well

   • Stability
     • Capacity of a structure to stay up and not tip over.
     • Depends on:
       • -Its centre of gravity. -The way it stands
   • Resistance
     • Capacity of structure to support a stress without breaking
     • Depends on:
       • -The material. -The quantity. -The shape
   • Rigidity
     • Capacity of a structure of becoming deformed
     • Comes from:
       • -Making rigid joints. -Using triangular structures