Overhang Beam

Definition

An overhang beam is a beam supported by two or more supports with one or both ends projecting beyond the supports.

Purpose

Overhang beams are used in construction to extend support beyond the last column or support, providing additional structural capacity and design flexibility. They are commonly used to create balconies, cantilevers, and overhanging structures.

Examples of Use

• Balconies: Extending a balcony beyond the main structure using an overhang beam.
• Cantilevered Roofs: Creating overhanging roof sections that provide shade and architectural interest.
• Bridges: Supporting sections of bridges that extend beyond the main supports.

Related Terms

• Cantilever: A beam or structure that is anchored at one end and extends horizontally beyond its support.
• Span: The distance between two supports of a beam or structure.
• Load Distribution: The manner in which loads are spread across a structural element.

Notes

• Design Considerations: Overhang beams require careful design to ensure they can handle the additional loads and moments created by the overhang.
• Material Selection: The choice of materials for overhang beams is crucial to achieving the desired strength and durability.