structures

structures

1. Types of structures

   • Natural and man-made
     • Natural
       • They are in living beigns in their composition or the result of a geological process
     • Man -Made
       • Are made by people to satisfy a need

2. Forces and Loads

   • Force:Is anything that can deform or make it move or stop
     • Static effect
     • Dynamic effect
   • Loads:Is a force that acts os a structure ,and it can be fixed or variable
     • Variable loads
       • Vary over time like the traffic going across a bridge or the wind hitting it
     • Fixed or permanent loads
       • Are constant they don t vary