Corbel

Definition

A corbel is a projection from the face of a beam, girder, column, or wall used as a beam seat or decoration. It is a spanning device where masonry units in successive courses are cantilevered slightly over one another, forming a projecting bracket of masonry or concrete.

Purpose

The purpose of a corbel is to support structures such as beams or to provide a decorative element in architecture. It helps distribute loads from the beam or other structural elements it supports, enhancing both the functionality and aesthetic appeal of a building.

Examples of Use

• In historic buildings, corbels are used to support balconies or upper-level structures.
• Decorative corbels are often seen under roof eaves or within the interior of buildings to enhance the visual appeal.
• Modern masonry walls may include corbels to provide additional support for projecting elements like ledges or cornices.

Related Terms

• Bracket: A projecting element used to support a load, similar to a corbel but often made of metal or wood.
• Cantilever: A projecting beam or structure supported at only one end.
• Lintel: A horizontal support across an opening, such as a door or window.

Notes

Corbels must be properly designed to handle the loads they support and prevent excessive deflection or failure. They often contribute significantly to the architectural style of a building.