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The pier of a bridge is an intermediate support that holds the deck of the structure. It is a massive and permanent support, as opposed to the shoring , which is lighter and provides temporary support.
A pier, in architecture, is an upright support for a structure or superstructure such as an arch or bridge. Sections of structural walls between openings (bays) can function as piers. Sections of structural walls between openings (bays) can function as piers.
A pier is an intermediate support. The cap is the part that supports the bearing pads. Depending on the type of support structure, there may or may not be a cap. Wall piers and stub abutments do not require a cap, while a multi-column, hammerhead, or pile-bent pier will have a cap. The stem or stub is the main body of the foundation. It ...
Spacing of piers between the abutments is dependent on the capacity of the selected plate girders. Separate plate girder bridges span between each pair of abutments in order to allow for expansion joints between the spans. Concrete is commonly used for low piers, while steel trestle work may be used for high bridges.
A viaduct is a specific type of bridge that consists of a series of arches, piers or columns supporting a long elevated railway or road. Typically a viaduct connects two points of roughly equal elevation, allowing direct overpass across a wide valley, road, river, or other low-lying terrain features and obstacles.
The term column applies especially to a large round support (the shaft of the column) with a capital and a base or pedestal, [1] which is made of stone, or appearing to be so. A small wooden or metal support is typically called a post. Supports with a rectangular or other non-round section are usually called piers.
This list of tallest bridges includes bridges with a structural height of at least 200 metres (660 ft). The structural height of a bridge is the maximum vertical distance from the uppermost part of a bridge, such as the top of a bridge tower, to the lowermost exposed part of the bridge, where its piers, towers, or mast pylons emerge from the surface of the ground or water.
The towers are composed of four columns oriented transversely (perpendicularly) to the deck, one each flanking the north and south roadways. [65] [306] The columns measure 5 feet (1.5 m) wide, as measured transversely. The length of each column, as measured laterally, tapers from 32 feet (9.8 m) at the pedestal to 10 feet (3.0 m) at the top. [306]