STRUCTURES

STRUCTURES

1. Conditions

   • There are three conditions: remaining upright (stability), without breaking (resistance), without deforming too much (rigidity).
     • Stability
       • Significated: To remain upright and not tip over. How to fulfil it: The centre of gravity (=CG; = point of application of the weight) should be centred over the base and close to the ground
     • Resistance
       • Significated: To bear loads without breaking How to fulfil it: Using for the structure:  -resistant materials -enough quantity of -material appropiate shape
     • Rigidity
       • Significated: To deform as less as possible How to fulfil it: Using for the structure:  -welding joints  -appropiate shape  -triangulation

2. Loades

   • The forces that act on a structure are called loads. Loads can be permanent or variable
     • And loades produce, stress

3. Can be

   • Massive
     • a massive structure is based on the own weight of its base:
   • Vaulted
     • Its shape is vaulted
   • Suspended
   • Lattice

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