Difference between revisions of "Hinge"
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==Origin== | ==Origin== | ||
| − | [ | + | [https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] ''heng''; akin to Middle Dutch ''henge'' hook, [https://nordan.daynal.org/wiki/index.php?title=English#ca._600-1100.09THE_OLD_ENGLISH.2C_OR_ANGLO-SAXON_PERIOD Old English] ''hangian'' to hang |
| − | *[ | + | *[https://en.wikipedia.org/wiki/14th_century 14th Century] |
==Definitions== | ==Definitions== | ||
*1a : a jointed or [[flexible]] device on which a door, lid, or other swinging part turns | *1a : a jointed or [[flexible]] device on which a door, lid, or other swinging part turns | ||
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A '''hinge''' is a type of bearing that connects two solid objects, typically allowing only a limited [[angle]] of [[rotation]] between them. Two objects [[connected]] by an [[ideal]] hinge rotate relative to each other about a fixed [[axis]] of rotation. Hinges may be made of [[flexible]] material or of moving components. In [[biology]], many joints function as hinges. | A '''hinge''' is a type of bearing that connects two solid objects, typically allowing only a limited [[angle]] of [[rotation]] between them. Two objects [[connected]] by an [[ideal]] hinge rotate relative to each other about a fixed [[axis]] of rotation. Hinges may be made of [[flexible]] material or of moving components. In [[biology]], many joints function as hinges. | ||
| − | Since at least [ | + | Since at least [https://en.wikipedia.org/wiki/Medieval medieval] times there have been hinges to [https://en.wikipedia.org/wiki/Draw_bridge draw bridges] for defensive purposes for [[fortified]] buildings. Hinges are used in contemporary [[architecture]] where building settlement can be [[expected]] over the life of the building. For example, the [https://en.wikipedia.org/wiki/Dakin_Building Dakin Building], California was designed with its entrance ramp on a large hinge to allow settlement of the building built on piles over bay mud. This device has been effective. |
| − | Hinges appear in large [[structures]] such as elevated freeway and railroad viaducts. These are included to reduce or eliminate the [[transfer]] of bending [[stresses]] between structural components, typically in an effort to reduce [[sensitivity]] to earthquakes. The primary reason for using a hinge, rather than a simpler device such as a slide, is to prevent the [[separation]] of adjacent components. When no bending stresses are [[transmitted]] across the hinge it is called a ''zero moment hinge''.[ | + | Hinges appear in large [[structures]] such as elevated freeway and railroad viaducts. These are included to reduce or eliminate the [[transfer]] of bending [[stresses]] between structural components, typically in an effort to reduce [[sensitivity]] to earthquakes. The primary reason for using a hinge, rather than a simpler device such as a slide, is to prevent the [[separation]] of adjacent components. When no bending stresses are [[transmitted]] across the hinge it is called a ''zero moment hinge''.[https://en.wikipedia.org/wiki/Hinge] |
[[Category: Architecture]] | [[Category: Architecture]] | ||
Latest revision as of 23:56, 12 December 2020
Origin
Middle English heng; akin to Middle Dutch henge hook, Old English hangian to hang
Definitions
- 1a : a jointed or flexible device on which a door, lid, or other swinging part turns
- b : a flexible ligamentous joint
- c : a small piece of thin gummed paper used in fastening a postage stamp in an album
- 2: a determining factor : turning point
Description
A hinge is a type of bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges.
Since at least medieval times there have been hinges to draw bridges for defensive purposes for fortified buildings. Hinges are used in contemporary architecture where building settlement can be expected over the life of the building. For example, the Dakin Building, California was designed with its entrance ramp on a large hinge to allow settlement of the building built on piles over bay mud. This device has been effective.
Hinges appear in large structures such as elevated freeway and railroad viaducts. These are included to reduce or eliminate the transfer of bending stresses between structural components, typically in an effort to reduce sensitivity to earthquakes. The primary reason for using a hinge, rather than a simpler device such as a slide, is to prevent the separation of adjacent components. When no bending stresses are transmitted across the hinge it is called a zero moment hinge.[1]
