Cap, Pile

Definition

A pile cap is a structural member usually fastened to and placed on the top of a slender timber, concrete, or structural element, used to transmit loads into the pile or group of piles and to connect them.

Purpose

Pile caps distribute and transfer loads from the superstructure to the underlying piles, ensuring stability and load-bearing capacity. They provide a solid foundation connection point, preventing differential settlement and enhancing structural integrity.

Examples of Use

1. Bridge Foundations: Using pile caps to distribute loads from bridge piers to multiple piles.
2. Building Foundations: Implementing pile caps in deep foundations to support heavy structures.
3. Marine Structures: Employing pile caps to stabilize docks and piers.

Related Terms

• Pile: A long, slender column driven into the ground to support loads.
• Foundation: The base of a structure that transfers loads to the ground.
• Load Distribution: The process of spreading a load evenly across supporting elements.

Notes

Proper design and installation of pile caps are essential for the effective transfer of loads and prevention of structural issues such as settlement and instability.