STRUCTURES

STRUCTURES

1. A structure is the set of elements in a body that are made to resist the effects of the forces that act on it, A structure prevents a body from breaking or deforming.

2. Types of structures

   • Natural structures
     • Aren't made by man,for example:a cave,the shell of a crab...
   • Man-made structures
     • Are made by peopleto satisfy a need,for example:legs of a table...

3. FORCES

   • A force can deform a body make it move or stop it.
   • A force that acts on a body is called load.
   • A structure bears the effects on the forces acting on it.

4. Loads

   • Is a force that acts on a structure.
   • Types of loads
     • FIXED OR PERMANENT LOAD
       • Are constant and they don't vary
     • VARIABLE LOAD
       • Vary over time

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