Tension Ring

Definition

A tension ring is a structural element forming a closed curve in a plane, which is in tension due to the action of the rest of the structure.

Purpose

Tension rings are used to distribute and balance tensile forces within a structure, providing stability and preventing deformation. They are essential in supporting circular and dome-shaped structures.

Examples of Use

1. Domes: Tension rings are integral in the construction of domes, helping to maintain their shape and structural integrity.
2. Ferris Wheels: The outer edge of a Ferris wheel acts as a tension ring, distributing the loads evenly.
3. Circular Roofs: In stadiums and large arenas, tension rings help support the circular roofs, ensuring even load distribution.

Related Terms

• Compression Ring: A structural element in compression, often found in conjunction with tension rings to balance forces.
• Truss: A framework, typically consisting of rafters, posts, and struts, supporting a roof or bridge.
• Cable-Stayed Structure: A structure supported by cables under tension, often used in bridges and roofs.

Notes

• Design Considerations: The design of a tension ring must account for the forces it will encounter and the materials used to ensure it performs its function effectively.
• Material: Tension rings are often made of steel or reinforced concrete, chosen for their high tensile strength.