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Tecnología Manuel & Ramón
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Tecnología Manuel & Ramón

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Tecnología Manuel & Ramón Tecnología Manuel & Ramón Presentation Transcript

  • STRUCTURES AND FORCES
  • TYPES OF STRUCTURES • Frame Structures • Shell Structures • Arch Structures • Mix and Match • Mass Structures • Suspension Structures
  • FRAME STRUCTURES
    • Is the most common choice of structures.
    • These structures are composed of long elements.
  • SHELL STRUCTURES
    • Are made of a thin outer layer.
    • They are like a strong and hard coat that maintains the require shape
  • ARCH STRUCTURES
    • The Romans invented the arch.
    • The stone at the very top is called the keystone
  • MIX AND MATCH
    • Different types of structures are combined
    • The combination is a moree complex structure.
  • MASS STRUCTURES
    • They are made of low quality of materials.
    • The structure is normally thick.
    • Advantage: Held in place by its own weight.
    • Disadvantage : Heavy need much material.
  • SUSPENSION STRUCTURES
    • A suspension structure holds an element.
    • Are often best for bridges.
    • Good for covering a very large span.
  • TYPES OF UNIONS
    • PERMANENT UNIONS :
    • They are meant for structures that will not needed to be disassembled.
    • Welding, rivets, glue...
    • NON-PERMANENT UNIONS :
    • Are those designed to assemble and disassemble the element of structures .
    • Nuts, bolts, clamps, friction...
  • FORCES ON STRUCTURAL ELEMENTS
    • Tensional strain
    • Compression forces
    • Shear strain
    • Torsion forces
    • Bending forces
  • TENSIONAL STRAIN
    • Is the strain that causes an element to stretch
    • It can be due to forces
  • COMPRESSION FORCES
    • They are those forces which causes an element to get squeezed or buckled
  • SHEAR STRAIN
    • Shear forces act across a material in such a way they can force.
    • A good example are when we cut with the scissors
  • TORSION FORCES
    • If we apply a turning force called torque at one end of an element and, if the element is fixed to a support at the other end the element twists
  • BENDING FORCES
    • Act at an angle to a member making it bend
  • BY: Manuel Folgado and Ramón Barrabés