Beam (structure)
Template:Infobox structural element
A beam is a structural element that primarily resists loads applied laterally to the beam's axis. Its mode of deflection is primarily by bending. The loads applied to the beam result in reaction forces at the beam's support points. The internal stresses in the beam are caused by the external loads, support reactions, and the beam's own weight. These stresses result in internal forces, namely bending moments and shear forces.
Types of Beams[edit | edit source]
Beams can be classified based on their support conditions, shape, and material. Common types include:
- Simply supported beam: Supported at both ends, typically with a pin support at one end and a roller support at the other.
- Cantilever beam: Fixed at one end and free at the other.
- Continuous beam: Extends over more than two supports.
- Fixed beam: Fixed at both ends, preventing rotation.
Materials[edit | edit source]
Beams can be made from various materials, including:
Applications[edit | edit source]
Beams are used in a variety of structures, including:
Design Considerations[edit | edit source]
When designing a beam, several factors must be considered:
- Load types and magnitudes
- Span length
- Material properties
- Cross-sectional shape
Related Concepts[edit | edit source]
See Also[edit | edit source]
Related Pages[edit | edit source]
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Contributors: Prab R. Tumpati, MD
