Pile cap

A pile cap is a thick concrete mat that rests on concrete or timber piles that have been driven into soft or unstable ground to provide a suitable stable foundation. It usually forms part of the foundation of a building, typically a multi-story building, structure or support base for heavy equipment. Is it possible to construct a pile without a pile cap? What is the purpose for pile caps? What are methods of driving piles over water?

Generally, pile caps are constructed.

See all full list on cforcivil. When the bearing capacity of soil immediately below the structure is insufficient for a spread footing, then piles are used to transfer the load to deeper, firmer strata. Piles may also be used where the soil is particularly affected by seasonal changes, to transfer the load below the level of such influence. Pile caps are constructed by excavating an area around the group of piles to enable formwork to be inserted. The pile tops may be trimmed to ensure they are at the same height.

And the piles are embedded in. Design of Rectangular Pile Cap. Get Pile Cap With Fast and Free Shipping on eBay.

We Have Almost Everything on eBay. Pile Caps Precast concrete Pile Caps are a superior solution to cast-in-place concrete caps, providing significant schedule acceleration for both bridge and fixed-pier structures. Our high-performance concrete has low-permeability in addition to high-strength, achieving extended service life in harsh conditions.

These protect the raw ends of the pilings from moisture ingress and resultant rotting of the wood. The column or wall on pile cap should be centered at the geometric center of the pile cap in order to transferred load evenly to each pile. Example of pile layout pattern are shown below: Pile spacing, edge distance, and pile cap thickness: In general, piles should be spacing at times of pile diameter in order to transfer load effectively to soil. This is usually done in the areas where there is a very low soil bearing capacity and it comes with its duo, the pile caps.

A typical detail of the pile can be seen in the image on the right, kindly click for a clearer view. Piles are provided as alternatives to shallow foundations when a firm and stable soil to carry column load is too deep below the surface, or when high lateral load is anticipated. A pile cap is required to transfer the load from a 4mm × 4mm column to four 6mm diameter piles, as shown in Fig.

In this example bending theory will be used. A pile cap is defined as a concrete block cast on the head of a group of piles, to transmit the load from the structure to the group of piles. Pile foundations are the part of a structure used to carry and transfer the load of the structure to the bearing ground located at some depth below ground surface. The main components of the foundation are the pile cap and the piles.

This is commonly used in building foundations with the geographical locations having a very low soil bearing capacity. Pile cap serves to transmit the load of the building into the hard strata of the soil via a pile or group of piles. PILE CAP DESIGN PILE CAP :- A reinforced concrete slab or block which interconnects a group of piles and acts as a medium to transmit the load from wall or column to the Piles is called a Pile Cap.

A pile cap is a very thick cap of concrete that extends over a small group of piles, and serves as a base on which a column can be constructed.

The load of this column is then distributed to all the piles in the group. Although pile caps are an important structural element, they are generally neglected in textbooks on structural design. Pile cap depth should be kept on the high side (optimum) to affect economy of steel and also to provide adequate rigidity to pile cap.

In Beam method the calculated depth value is very low.