Movable bridge - Revision history

Editor at 16:33, 10 February 2022

2022-02-10T16:33:28Z

← Older revision		Revision as of 16:33, 10 February 2022
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	* Transporter (also known as a ferry or aerial transfer bridge)		* Transporter (also known as a ferry or aerial transfer bridge)
	* Vertical-lift.		* Vertical-lift.
		+
		+	--[[User:Heidi_Schwartz\|Heidi Schwartz]]

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =
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	* Pontoon bridge.		* Pontoon bridge.
	* Retractable bridge.		* Retractable bridge.
		+	* Strut.
	* Submersible bridge.		* Submersible bridge.
	* Swing bridge.		* Swing bridge.

	[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:History]] [[Category:Construction_techniques]] [[Category:Conservation]]		[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:History]] [[Category:Construction_techniques]] [[Category:Conservation]]

Editor at 16:40, 23 November 2021

2021-11-23T16:40:04Z

← Older revision		Revision as of 16:40, 23 November 2021
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	* Pontoon.		* Pontoon.
	* Retractable (including thrust, floating retractable and Guthrie rolling versions)		* Retractable (including thrust, floating retractable and Guthrie rolling versions)
−	* Submersible (also referred to as a ducking or low water bridge, although many low water bridges are not movable).	+	* [[Submersible_bridge\|Submersible]] (also referred to as a ducking or low water bridge, although many low water bridges are not movable).
	* Swing (or pivot).		* Swing (or pivot).
	* Table.		* Table.
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	* Pontoon bridge.		* Pontoon bridge.
	* Retractable bridge.		* Retractable bridge.
		+	* Submersible bridge.
	* Swing bridge.		* Swing bridge.

	[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:History]] [[Category:Construction_techniques]] [[Category:Conservation]]		[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:History]] [[Category:Construction_techniques]] [[Category:Conservation]]

Editor at 14:48, 23 November 2021

2021-11-23T14:48:24Z

← Older revision		Revision as of 14:48, 23 November 2021
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	* Vertical-lift.		* Vertical-lift.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Bascule bridge.		* Bascule bridge.

Editor at 14:48, 23 November 2021

2021-11-23T14:48:09Z

← Older revision		Revision as of 14:48, 23 November 2021
Line 36:		Line 36:
	* Pontoon.		* Pontoon.
	* Retractable (including thrust, floating retractable and Guthrie rolling versions)		* Retractable (including thrust, floating retractable and Guthrie rolling versions)
−	* Submersible (also referred to as ducking or low water).	+	* Submersible (also referred to as a ducking or low water bridge, although many low water bridges are not movable).
	* Swing (or pivot).		* Swing (or pivot).
	* Table.		* Table.

Designing Buildings at 06:39, 2 August 2021

2021-08-02T06:39:27Z

← Older revision		Revision as of 06:39, 2 August 2021
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	= Introduction =		= Introduction =

−	A bridge is a spanning structure that creates a passage over an obstacle such as a river, gorge, valley, road, railway and so on. A movable (or moveable) bridge is a ~~specific type of~~ spanning structure that can ~~shift its~~ position (or even ~~its~~ shape) ~~in order~~ to accommodate different situations ~~or respond to~~ the requirements of ships, barges and other types of traffic above or below it.	+	A bridge is a spanning structure that creates a passage over an obstacle such as a river, gorge, valley, road, railway and so on. A movable bridge (or moveable bridge) is a spanning structure that can change position (or even shape) to accommodate different situations, such as the requirements of ships, barges and other types of traffic above or below it. However, they can be inconvenient due to delays caused when one stream of traffic is halted to accommodate the passage of the other.
−		+
−	~~Movable bridges~~ can ~~sometimes~~ be ~~considered beneficial due to their relatively low cost. They may also be seen as~~ inconvenient due to delays caused when one stream of traffic ~~must be~~ halted ~~in order~~ to accommodate the passage of the other.	+

	= Operations =		= Operations =

−	Movable bridges ~~can be~~ operated by ~~several different engineering systems. These include:~~	+	Movable bridges are typically operated by counterweights (including auxiliary counterweights), or other mechanical systems (such as electric or hydraulic drives). Modern movable bridges may be controlled by stabilising machinery, span brakes and other mechanisms.
−		+
−	* Counterweights (including auxiliary counterweights).	+
−	* Mechanical systems (~~including~~ electric or hydraulic drives).	+
−	* Electrical systems.	+
−		+
−	Modern movable bridges ~~are~~ controlled by stabilising machinery, span brakes and other mechanisms.	+

	= Drawbridges =		= Drawbridges =
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	There is evidence that movable bridges were first used in ancient times, but it wasn’t until the Middle Ages that they appeared in Europe. During this period, the drawbridge (also referred to as a bascule or lifting bridge) was sometimes incorporated into defensive mechanisms used to protect a castle, village or town. These early drawbridges did not typically include counterweights.		There is evidence that movable bridges were first used in ancient times, but it wasn’t until the Middle Ages that they appeared in Europe. During this period, the drawbridge (also referred to as a bascule or lifting bridge) was sometimes incorporated into defensive mechanisms used to protect a castle, village or town. These early drawbridges did not typically include counterweights.

−	The drawbridge is the most common type of movable bridge. It is also the term that is typically used for all movable bridges in the US. This is not the case in the UK, where the term is more frequently used to describe the defensive version of a drawbridge that is associated with medieval ~~times~~.	+	The drawbridge is the most common type of movable bridge. It is also the term that is typically used for all movable bridges in the US. This is not the case in the UK, where the term is more frequently used to describe the defensive version of a drawbridge that is associated with medieval structures.

	The bascule bridge is one type of drawbridge. Depending on the number of platforms, they are referred to as single-, double-, triple- or quadruple leaf bascule bridges.		The bascule bridge is one type of drawbridge. Depending on the number of platforms, they are referred to as single-, double-, triple- or quadruple leaf bascule bridges.
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	Engineering advances during the 1800s made it possible to incorporate new technologies and materials into the construction of movable bridges. This resulted in the introduction of several new types of movable bridges, including:		Engineering advances during the 1800s made it possible to incorporate new technologies and materials into the construction of movable bridges. This resulted in the introduction of several new types of movable bridges, including:

−	* Pontoon	+	* Pontoon.
	* Retractable (including thrust, floating retractable and Guthrie rolling versions)		* Retractable (including thrust, floating retractable and Guthrie rolling versions)
	* Submersible (also referred to as ducking or low water).		* Submersible (also referred to as ducking or low water).

Editor at 16:40, 29 July 2021

2021-07-29T16:40:31Z

← Older revision		Revision as of 16:40, 29 July 2021
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	* Bridge construction.		* Bridge construction.
	* Bridge structures.		* Bridge structures.
−	* Clifton Suspension Bridge.
	* Five bridges worth visiting during a UK staycation.		* Five bridges worth visiting during a UK staycation.
	* How canals work.		* How canals work.
−	* Navigable aqueduct.
	* Pontoon bridge.		* Pontoon bridge.
	* Retractable bridge.		* Retractable bridge.

Editor at 16:36, 29 July 2021

2021-07-29T16:36:12Z

← Older revision		Revision as of 16:36, 29 July 2021
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	{\|		{\|
	\|width="100%"\|		\|width="100%"\|
−	[[File:ArthurKillVerticalLiftBridge.jpg]]	+	[[File:ArthurKillVerticalLiftBridge.jpg\|link=File:ArthurKillVerticalLiftBridge.jpg]]

−	The Arthur Kill bridge in Staten Island, New York is a ~~rail~~ vertical lift bridge used to transport rubbish and freight. It lift span is one of the longest in the world.	+	The Arthur Kill bridge in Staten Island, New York, is a vertical lift bridge used to transport rubbish and freight via rail. Its lift span is one of the longest in the world.
	\|}		\|}

Editor at 16:33, 29 July 2021

2021-07-29T16:33:59Z

← Older revision		Revision as of 16:33, 29 July 2021
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		+	{\|
		+	\|width="100%"\|
		+	[[File:ArthurKillVerticalLiftBridge.jpg]]
		+
		+	The Arthur Kill bridge in Staten Island, New York is a rail vertical lift bridge used to transport rubbish and freight. It lift span is one of the longest in the world.
		+	\|}
		+
	= Introduction =		= Introduction =

Editor: Created page with "= Introduction = A bridge is a spanning structure that creates a passage over an obstacle such as a river, gorge, valley, road, railway and so on. A movable (or moveable) bridge..."

2021-07-29T16:25:21Z

Created page with "= Introduction = A bridge is a spanning structure that creates a passage over an obstacle such as a river, gorge, valley, road, railway and so on. A movable (or moveable) bridge..."

New page

= Introduction =

A bridge is a spanning structure that creates a passage over an obstacle such as a river, gorge, valley, road, railway and so on. A movable (or moveable) bridge is a specific type of spanning structure that can shift its position (or even its shape) in order to accommodate different situations or respond to the requirements of ships, barges and other types of traffic above or below it.

Movable bridges can sometimes be considered beneficial due to their relatively low cost. They may also be seen as inconvenient due to delays caused when one stream of traffic must be halted in order to accommodate the passage of the other.

= Operations =

Movable bridges can be operated by several different engineering systems. These include:

* Counterweights (including auxiliary counterweights).
* Mechanical systems (including electric or hydraulic drives).
* Electrical systems.

Modern movable bridges are controlled by stabilising machinery, span brakes and other mechanisms.

= Drawbridges =

There is evidence that movable bridges were first used in ancient times, but it wasn’t until the Middle Ages that they appeared in Europe. During this period, the drawbridge (also referred to as a bascule or lifting bridge) was sometimes incorporated into defensive mechanisms used to protect a castle, village or town. These early drawbridges did not typically include counterweights.

The drawbridge is the most common type of movable bridge. It is also the term that is typically used for all movable bridges in the US. This is not the case in the UK, where the term is more frequently used to describe the defensive version of a drawbridge that is associated with medieval times.

The bascule bridge is one type of drawbridge. Depending on the number of platforms, they are referred to as single-, double-, triple- or quadruple leaf bascule bridges.

There are several other types of drawbridges, including:

* Curling.
* Double-beam.
* Fan.
* Folding.
* Linkspan (including ferry slips and transfer bridges).

= Other movable bridges =

Engineering advances during the 1800s made it possible to incorporate new technologies and materials into the construction of movable bridges. This resulted in the introduction of several new types of movable bridges, including:

* Pontoon
* Retractable (including thrust, floating retractable and Guthrie rolling versions)
* Submersible (also referred to as ducking or low water).
* Swing (or pivot).
* Table.
* Tilt.
* Transporter (also known as a ferry or aerial transfer bridge)
* Vertical-lift.

= Related articles on Designing Buildings Wiki =

* Bascule bridge.
* Bridge construction.
* Bridge structures.
* Clifton Suspension Bridge.
* Five bridges worth visiting during a UK staycation.
* How canals work.
* Navigable aqueduct.
* Pontoon bridge.
* Retractable bridge.
* Swing bridge.

[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:History]] [[Category:Construction_techniques]] [[Category:Conservation]]