Crib pier

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A crib pier under construction in Russia Riazh.jpg
A crib pier under construction in Russia

A crib pier is a type of pier built with the supporting columns made of 'cribs'. [1] Typically a crib is made from wood, but it could be made from any long cylindrical material. Pairs of logs are laid parallel, then others laid over them to make a square, and this continues upwards in a style of building similar to a log cabin's construction.

Pier Raised structure in a body of water, typically supported by well-spaced piles or pillars

A pier is a raised structure in a body of water, typically supported by piles or pillars. Bridges, buildings, and walkways may all be supported by piers. Their open structure allows tides and currents to flow relatively unhindered, whereas the more solid foundations of a quay or the closely spaced piles of a wharf can act as a breakwater, and are consequently more liable to silting. Piers can range in size and complexity from a simple lightweight wooden structure to major structures extended over 1,600 m (5,200 ft). In American English, a pier may be synonymous with a dock.

Log cabin dwelling constructed of logs; mostly used in a log house

A log cabin is a small log house, especially a less finished or architecturally sophisticated structure. Log cabins have an ancient history in Europe, and in America are often associated with first generation home building by settlers.

Each crib can be either empty or filled with a material such as rocks, gravel, concrete blocks, etc. This material can serve to provide additional stability in the event of high winds if the crib is very tall.

Advantages of crib construction include its simplicity and strength. Logs need only be cut and notched for stability, then lain crosswise until a certain height is reached. As each layer of wood is only used as a compressive layer, the wood need not be strong. Since there are few load-bearing fasteners in the lower levels, reasonable strength is possible.

Disadvantages include very heavy construction, relying on much more material than a bridge of more advanced design.

Notes and references

  1. "Piers". National Piers Society (2006). Archived from the original on September 29, 2008. Retrieved February 24, 2012.

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