Hyperbolic paraboloid in construction - Revision history

Designing Buildings at 10:01, 9 September 2020

2020-09-09T10:01:24Z

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	* ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., GREENO, R., Butterworth-Heinemann (2007)		* ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., GREENO, R., Butterworth-Heinemann (2007)

−	[[Category:Construction_techniques]] [[Category:Design]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]] [[Category:Design]]

Designing Buildings at 15:00, 16 April 2020

2020-04-16T15:00:25Z

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	The fact that hyperbolic paraboloids are doubly-ruled means that they are easy to construct using a series of straight structural members. As a consequence they are commonly used to construct thin ‘shell’ roofs. These can either be formed using timber or steel sections, that are then clad, or they can be constructed using concrete.		The fact that hyperbolic paraboloids are doubly-ruled means that they are easy to construct using a series of straight structural members. As a consequence they are commonly used to construct thin ‘shell’ roofs. These can either be formed using timber or steel sections, that are then clad, or they can be constructed using concrete.

−	The use of hyperbolic paraboloids as a form of thin shell construction was pioneered in the post-war era, as a hybrid of modern architecture and structural engineering. ~~By being~~ both lightweight and efficient, the form was used as a means of minimising materials and increasing structural performance while also ~~being capable of achieving~~ impressive and seemingly complex designs.	+	The use of hyperbolic paraboloids as a form of thin shell construction was pioneered in the post-war era, as a hybrid of modern architecture and structural engineering. Being both lightweight and efficient, the form was used as a means of minimising materials and increasing structural performance while also creating impressive and seemingly complex designs.

−	Rather than ~~derive~~ their strength from mass, like many conventional roofs, thin shell roofs gain strength through their shape. The curvature of the shape reduces its tendency to buckle in compression (as a flat plane would) and means that they can achieve exceptional stiffness. ~~By being~~ braced in two directions they experience no bending and are able to withstand unequal loading, whether dead loads (such as equipment hung from the ceiling), or live loads (such as wind).	+	Rather than deriving their strength from mass, like many conventional roofs, thin shell roofs gain strength through their shape. The curvature of the shape reduces its tendency to buckle in compression (as a flat plane would) and means that they can achieve exceptional stiffness. Being braced in two directions they experience no bending and are able to withstand unequal loading, whether from dead loads (such as equipment hung from the ceiling), or live loads (such as wind).

−	Hyperbolic paraboloid shell roofs can be constructed using reinforced concrete with a shell thickness of just 50 mm for diagonal spans up to 35 m~~. By using simple prestressing cables to resist tension forces, concrete hyperbolic paraboloid roofs can span over 24 feet, with thicknesses of less than 40 mm~~.	+	Hyperbolic paraboloid shell roofs can be constructed using reinforced concrete with a shell thickness of just 50 mm for diagonal spans up to 35 m.

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =

193.63.42.35 at 13:38, 9 December 2019

2019-12-09T13:38:24Z

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−	~~molly hates me ;)~~ A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.	+	A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.

	The fact that hyperbolic paraboloids are doubly-ruled means that they are easy to construct using a series of straight structural members. As a consequence they are commonly used to construct thin ‘shell’ roofs. These can either be formed using timber or steel sections, that are then clad, or they can be constructed using concrete.		The fact that hyperbolic paraboloids are doubly-ruled means that they are easy to construct using a series of straight structural members. As a consequence they are commonly used to construct thin ‘shell’ roofs. These can either be formed using timber or steel sections, that are then clad, or they can be constructed using concrete.

193.63.42.35 at 13:37, 9 December 2019

2019-12-09T13:37:40Z

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−	~~bitchboy~~ A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.	+	molly hates me ;) A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.

	The fact that hyperbolic paraboloids are doubly-ruled means that they are easy to construct using a series of straight structural members. As a consequence they are commonly used to construct thin ‘shell’ roofs. These can either be formed using timber or steel sections, that are then clad, or they can be constructed using concrete.		The fact that hyperbolic paraboloids are doubly-ruled means that they are easy to construct using a series of straight structural members. As a consequence they are commonly used to construct thin ‘shell’ roofs. These can either be formed using timber or steel sections, that are then clad, or they can be constructed using concrete.

193.63.42.35 at 13:35, 9 December 2019

2019-12-09T13:35:22Z

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−	A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.	+	bitchboy A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.

	The fact that hyperbolic paraboloids are doubly-ruled means that they are easy to construct using a series of straight structural members. As a consequence they are commonly used to construct thin ‘shell’ roofs. These can either be formed using timber or steel sections, that are then clad, or they can be constructed using concrete.		The fact that hyperbolic paraboloids are doubly-ruled means that they are easy to construct using a series of straight structural members. As a consequence they are commonly used to construct thin ‘shell’ roofs. These can either be formed using timber or steel sections, that are then clad, or they can be constructed using concrete.

193.63.42.35 at 13:33, 9 December 2019

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−
−	~~Hello everyone from Oaklands college i am watching you especially Julian Sanders.~~

	A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.		A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.

193.63.42.35 at 13:30, 9 December 2019

2019-12-09T13:30:30Z

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	\| [[File:Hyperbolic4.jpg\|link=File:Hyperbolic4.jpg]]		\| [[File:Hyperbolic4.jpg\|link=File:Hyperbolic4.jpg]]
	\|}		\|}
		+
		+	Hello everyone from Oaklands college i am watching you especially Julian Sanders.

	A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.		A hyperbolic paraboloid (sometimes referred to as ‘h/p’) is a doubly-curved surface that resembles the shape of a saddle, that is, it has a convex form along one axis, and a concave form on along the other. It is also a doubly-ruled surface, that is, every point on its surface lies on two straight lines across the surface. Horizontal sections taken through the surface are hyperbolic in format and vertical sections are parabolic.

Editor at 12:03, 18 October 2019

2019-10-18T12:03:58Z

← Older revision		Revision as of 12:03, 18 October 2019
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	* Anticlastic.		* Anticlastic.
	* Arches.		* Arches.
−	* Bamboo pavilion tensegrity structure.
	* Barrel vault.		* Barrel vault.
	* Cantilever.		* Cantilever.
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	* Synclastic.		* Synclastic.
	* Tensegrity.		* Tensegrity.
		+	* Tensegrity bamboo pavilion
	* Tensile structures.		* Tensile structures.
	* The development of structural membranes.		* The development of structural membranes.

Editor at 11:47, 18 October 2019

2019-10-18T11:47:55Z

← Older revision		Revision as of 11:47, 18 October 2019
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	* Anticlastic.		* Anticlastic.
	* Arches.		* Arches.
		+	* Bamboo pavilion tensegrity structure.
	* Barrel vault.		* Barrel vault.
	* Cantilever.		* Cantilever.

Designing Buildings at 09:13, 16 January 2019

2019-01-16T09:13:47Z

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−	\|[[File:Hyperbolic1.jpg\|link=File:Hyperbolic1.jpg]]	+	\| [[File:Hyperbolic1.jpg\|link=File:Hyperbolic1.jpg]]
−	\|[[File:Hyperbolic2.jpg\|link=File:Hyperbolic2.jpg]]	+	\| [[File:Hyperbolic2.jpg\|link=File:Hyperbolic2.jpg]]
	\|-		\|-
−	\|[[File:Hyperbolic3.jpg\|link=File:Hyperbolic3.jpg]]	+	\| [[File:Hyperbolic3.jpg\|link=File:Hyperbolic3.jpg]]
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	Hyperbolic paraboloid shell roofs can be constructed using reinforced concrete with a shell thickness of just 50 mm for diagonal spans up to 35 m. By using simple prestressing cables to resist tension forces, concrete hyperbolic paraboloid roofs can span over 24 feet, with thicknesses of less than 40 mm.		Hyperbolic paraboloid shell roofs can be constructed using reinforced concrete with a shell thickness of just 50 mm for diagonal spans up to 35 m. By using simple prestressing cables to resist tension forces, concrete hyperbolic paraboloid roofs can span over 24 feet, with thicknesses of less than 40 mm.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Anticlastic.		* Anticlastic.
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	* Barrel vault.		* Barrel vault.
	* Cantilever.		* Cantilever.
		+	* Catenary.
	* Concept structural design of buildings.		* Concept structural design of buildings.
	* Conoid shell.		* Conoid shell.
−	* Domestic roofs.
	* Folded plate construction.		* Folded plate construction.
	* Long span roof.		* Long span roof.
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	* Types of dome.		* Types of dome.

−	=== External resources ===	+	= External resources =

	* ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., GREENO, R., Butterworth-Heinemann (2007)		* ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., GREENO, R., Butterworth-Heinemann (2007)

	[[Category:Construction_techniques]] [[Category:Design]]		[[Category:Construction_techniques]] [[Category:Design]]