CDT structures forces energy

• Types of energy sources

  • Fossil fuels
  • Biofuels
  • Tidal power
  • Hydroelectricity
  • Wind power
  • Solar power
• Fossil fuels


  Hydrocarbon compounds formed naturally in the earth's crust, often burned for heat or to power engines and generate electricity
• Biofuels


  Fuels produced over a short time span from biomass, rather than fossil fuels which take a long time
• Tidal power


  Harnessed by converting energy from tides into forms of power like electricity
• Hydroelectricity


  Harnessing the potential energy of water in motion, such as water flowing over a waterfall, to generate electricity
• Wind power


  Use of wind energy to generate electricity, using machines like wind turbines
• Solar power


  Conversion of energy from sunlight into electricity, either directly from photovoltaics or concentrated solar power
• Triangulation

  Strengthens structures and prevents collapsing or falling out
• Cantilever

  A structure that is supported at only one end, with the other end overhanging
• Simply supported beam


  A beam that is supported at both ends
• Arch


  A curved structure that supports loads primarily through compressive forces, with the keystone at the apex providing crucial support
• Truss


  A framework of beams and struts arranged in a triangular pattern to distribute loads
• Cable stayed

  A bridge structure supported by cables attached to a tower or mast
• Suspension

  A bridge structure supported by cables hung from tall towers
• Vehicle structure where the chassis is integral with the body
• Bending and tension are important forces in structures
• Beam support types


  • Cantilever
  • Simply supported
  • Overhanging
  • Continuous
  • Fixed ended
• Cantilever


  One-side is supported, other is "not"
• Simply supported


  One that rests on the supports and is free to move horizontally
• Overhanging


  Beam with a portion extending beyond one or both supports
• Continuous


  A structural beam that is supported at more than two points - with at least 3 or more supports
• Fixed ended


  A beam that is restrained with a fixed support at both ends, providing extra stability
• Bridge types


  • Cantilever
  • Beam
  • Suspension
  • Cable stayed
• Suspension bridge


  • Deck is hung below suspension cables that are supported by towers
• Cable stayed bridge


  • Deck is supported by a number of nearly diagonal cables
• Cantilever, simply supported
• Tension


  Forces pulling and stretching material in opposite directions, allowing a rope bridge to support itself and the load it carries
• Torsion


  Involves 2 forces when forces at opposite ends of a bridge rotate the bridge in different directions
• Compression


  A force pushing in inward,
• Shear


  A force that pushes ends of an object in different directions
• Static


  The pressure that tries to push a bridge sideways
• Dynamic


  Forces that give rise to vertical motion creating oscillation in a bridge
• Bending


  A load applied to a bridge material that causes it to depart from a fixed position
• Tension, torsion, compression, shear, static, dynamic, and bending are forces and stresses that act on bridges