Technology

Technology

1. STRUCTURES

   • 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 prevent a body form breaking or deforning.
     • MAN-MADE STRUCTURES
       • Are made by people to satisfy a need. Ex: Leg of a table.
     • NATURAL STRUCTURES
       • Are not made by man. They are in living beings in their compostition, or the result of a geological process. Ex: Shell of a crab.

2. FORCES AND LOADS

   • Forces: Is anything that can defirm a body (static effect) or make it move or stop (dinamic effect)
   • Loads: Is a force that acts on a structure. It can be fixed or variable.
     • FIXED OR PERMANENT LOADS
       • They don't vary over time. Ex:road surface
     • VARIABLE LOADS
       • Vary over time. Ex: Traffic.

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