This article is about upward extensions of physical structures such as ships or buildings. For other uses, see superstructure (disambiguation).
A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships.
The superstructure of this cargo ship is in the back and includes a lifeboat.
The cruiseferryMega Smeralda. The blue and white part of the ship is the superstructure and the yellow part of the ship is the hull.
The size of a watercraft's superstructure can have many implications in the performance of ships and boats, since these structures can alter their structural rigidity, their displacements, and/or stability. These can be detrimental to any vessel's performance if they are taken into consideration incorrectly.
The height and the weight of superstructure on board a ship or a boat also affects the amount of freeboard that such a vessel requires along its sides, down to her waterline. In broad terms, the more and heavier superstructure that a ship possesses (as a fraction of her length), the less the freeboard that is needed.
Bridges
On a bridge, the portion of the structure that is the span and directly receives the live load is referred to as the superstructure. In contrast, the abutment, piers, and other support structures are called the 'substructure'.[1]
^Waddell, J. A. L. (1916). "Chapter LXXX: Glossary of Terms". Bridge Engineering. Volume 2. New York: John Wiley & Sons. pp. 2088 "Structure" and 2089 "Superstructure". OCLC 366744.
External links
Look up superstructure in Wiktionary, the free dictionary.
January 13, 2023
superstructure, this, article, about, upward, extensions, physical, structures, such, ships, buildings, other, uses, superstructure, disambiguation, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citati. This article is about upward extensions of physical structures such as ships or buildings For other uses see superstructure disambiguation This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Superstructure news newspapers books scholar JSTOR January 2013 Learn how and when to remove this template message A superstructure is an upward extension of an existing structure above a baseline This term is applied to various kinds of physical structures such as buildings bridges or ships The superstructure of this cargo ship is in the back and includes a lifeboat The cruiseferry Mega Smeralda The blue and white part of the ship is the superstructure and the yellow part of the ship is the hull Contents 1 Aboard ships and large boats 2 Bridges 3 Earthquake protection 4 References 5 External linksAboard ships and large boats EditOn water craft the superstructure consists of the parts of the ship or a boat including sailboats fishing boats passenger ships and submarines that project above her main deck This does not usually include its masts or any armament turrets Note that in modern times turrets do not always carry naval artillery but they can also carry missile launchers and or antisubmarine warfare weapons The size of a watercraft s superstructure can have many implications in the performance of ships and boats since these structures can alter their structural rigidity their displacements and or stability These can be detrimental to any vessel s performance if they are taken into consideration incorrectly The height and the weight of superstructure on board a ship or a boat also affects the amount of freeboard that such a vessel requires along its sides down to her waterline In broad terms the more and heavier superstructure that a ship possesses as a fraction of her length the less the freeboard that is needed Bridges EditOn a bridge the portion of the structure that is the span and directly receives the live load is referred to as the superstructure In contrast the abutment piers and other support structures are called the substructure 1 Earthquake protection EditIn order to improve the response during earthquakes of buildings and bridges the superstructure might be separated from its foundation by various civil engineering mechanisms or machinery All together these implement the system of earthquake protection called base isolation References Edit Waddell J A L 1916 Chapter LXXX Glossary of Terms Bridge Engineering Volume 2 New York John Wiley amp Sons pp 2088 Structure and 2089 Superstructure OCLC 366744 External links Edit Look up superstructure in Wiktionary the free dictionary Retrieved from https en wikipedia org w index php title Superstructure amp oldid 1122176119, wikipedia, wiki, book, books, library,
