What is a bridge footing?

footing – the enlarged, lower portion of a substructure, which distributes the structure load either to the earth or to supporting piles; the most common footing is the concrete slab; footer is a local term for footing. foot wall – see TOE WALL.

What is a pier in bridges?

pier, in building construction, vertical loadbearing member, such as an intermediate support for adjacent ends of two bridge spans. In foundations for large buildings, piers are usually cylindrical concrete shafts, cast in prepared holes, but in bridges they take the form of caissons, which are sunk into position.

What are bridge footings called?

Pile (also known as beam, footing, and pier) – Reinforced concrete post that is driven into the ground to serve as the leg or support for the bridge.

What does a pier footing support?

Pier foundations are unlike more conventional concrete footings and walls in that they support structural loads at a number of distinct points, not continuously. Pier foundations can be as simple as concrete-filled cardboard tubes dropped into hand-dug holes.

What are the function of bridge foundation?

A Bridge foundation or Bridge Pier is provided to holds the bridge span and transmit the load to the ground. This simply means that the Bridge Foundation needs to be robust enough to not only holds the vertical load of the substructure but also holds the lateral stress of the bridge span.

What is a pier foundation?

Basically, it is a series of vertical pillars or piles that transfer the building load to the soil. Beams are then built on top of these columns. Pier foundations work really well in sites where it might be difficult to dig a traditional foundation, such as around trees or complex root systems.

What is the purpose of pier?

A pier is a raised structure that rises above a body of water and usually juts out from its shore, typically supported by piles or pillars, and provides above-water access to offshore areas. Frequent pier uses include fishing, boat docking and access for both passengers and cargo, and oceanside recreation.

What are pier supports called?

Description. The simplest cross section of the pier is square, or rectangular, but other shapes are also common. In medieval architecture, massive circular supports called drum piers, cruciform (cross-shaped) piers, and compound piers are common architectural elements.

What are piers used for?

Is pier foundation a deep foundation?

Pier foundation is a type of deep foundation that basically consists of a cylindrical column of large diameter.