Pile Cap

Definition

A pile cap is a thick slab of reinforced concrete poured across the top of a pile group to cause the group to act as a unit in supporting a column.

Purpose

Pile caps distribute the loads from columns or other structural elements to a group of piles, ensuring that the loads are evenly shared among the piles and enhancing the stability and strength of the foundation.

Examples of Use

• Building Foundations: Supporting columns in high-rise buildings and industrial structures.
• Bridges: Distributing loads from bridge piers to the piles below.
• Marine Structures: Providing stable foundations for piers, jetties, and offshore platforms.

Related Terms

• Pile: A long, slender column driven into the ground to support structures.
• Footing: The base of a foundation that spreads the load to the soil.
• Raft Foundation: A large concrete slab that distributes loads across a wide area, often used in combination with piles.

Notes

• Design: Pile caps must be designed to handle the combined loads from the supported structure and the piles.
• Construction: Proper construction techniques are essential to ensure the pile cap effectively transfers loads and provides stability.