Cantilever

Definition

A cantilever is a structural element (such as a beam, truss, or slab) that extends beyond its last point of support.

Purpose

Cantilevers allow for overhanging structures without external bracing, creating extended spaces and architectural features such as balconies, bridges, and overhanging roofs. They support loads and resist bending and shear forces.

Examples of Use

1. Balconies: Extending balconies from the main structure without additional supports.
2. Bridges: Designing bridge segments that extend beyond the support piers.
3. Building Overhangs: Creating overhanging sections in modern architectural designs.

Related Terms

• Beam: A long, sturdy piece of wood or metal used to support weight.
• Truss: A framework of beams forming a rigid structure.
• Moment Arm: The perpendicular distance from the axis of rotation to the line of action of the force.

Notes

Designing cantilevers requires careful engineering to ensure stability and structural integrity, considering factors like material strength, load distribution, and deflection.