STRUCTURES

STRUCTURES

1. FORCES AND LOADS

   • FORCE
     • Is anything that can deform a body (static effect) or make it move or stop (dynamic effect).
   • LOAD
     • Is a force that acts on a structure. It can be fixed or variable.
     • FIXED OR PERMANET LOADS are constant - they don't vary over time. An example would be the weight.
     • VARIABLE LOADS very over time, like the traffic going across a bridge or the wind hitting it.
     • Loads produce stress on the structure of a body. The same load can cause different effects depending on the shape of the structure, the point of application, the direction, and the trajectory.

2. TYPES OF STRUCTURS

   • NATURAL STRUCTURS
     • Aren't made by man. They are in living beings, in their composition, or the result of a geological process.
   • MAN-MADE STRUCTURES
     • Are made by people to satisfy a need.

3. 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 deforning.

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