Beams

Beams

What are Beams?

  • A beam is a structural element that resists loads applied to the beam's axis.

  • Beams primary mode of deflection is bending.

  • Beams are built with supports which produce reaction forces when loads are applied to the beam's axis. [2]

Characteristics of Beams

General Terminology

  • Span: The length of a beam from end to end.

  • Height: The vertical length of a beam.

  • Width: The length of a beam from side to side.

  • Load: The force exerted on a beam.

  • Moment: The rotational effect on a body produced by a force

Measurements

  • Beams are measured through their; span, height and width.

Moment of Inertia

  • The moment of inertia is dependent on the beams cross-section.

  • It is a measure of the beams resistance to bending.

Bending Moment

  • The bending moment occurs when a force or moment is applied at a certain distance from a reference point causing the beam to bend. [3]

Beam Deflection

  • Beam deflection refers to how much a beam deflects from it's original shape due to loads applied to the beam[4]. 

Deflection of a Beam [5]  

Deflection of a Beam [5]  

Diagram showcasing beam deflection.


Reaction Forces

Forces Applied to a Beam Resulting in Reaction Forces [6]

Forces Applied to a Beam Resulting in Reaction Forces [6]

Diagram showcasing forces applied to a beam and the resulting reaction forces.


Types of Beams (Page Link)

Beams Use Cases

 

Exposed Beams in Home

Timber Beams

Steel Beams

Exposed Beams in Home

Timber Beams

Steel Beams

Image of exposed beams in a home.
Image of timber beams used in construction.
Image of steel beams.

References

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