High Ho Hypars - IMGP5595
This roof is an example of a Hyperbolic Paraboloid erikdemaine.org/hypar/ Hypars in Architecture
"Hypars and joining hypars in a few special ways have been used extensively in architecture. For example, Curt Siegel's 1962 book Structure and Form in Modern Architecture (page 256) illustrates the roof of the Girls' Grammar School in London (designed by Chamberlin, Powell, and Bonn) which is what we call a “5-hat” with five hypars spread apart slightly. Later (page 264) the idea of joining two 5-hats is suggested, although the two hats are cut to have a curved boundary, making them easy to join. Page 260 shows a photo of the Philips pavilion at the 1958 Brussels exhibition (designed by Le Corbusier) which is a beautiful surface made of eight or so hypars that rests on the ground. A few more wonderful examples with straight boundaries are illustrated by Heinrich Engel in his book mentioned above (pages 228-229), each involving between five and twelve hypars. Finally, a grid of connecting “4-hats” is illustrated and analyzed by Frei Otto in the 1969 book Tensile Structures (volume 2, page 64). "
High Ho Hypars - IMGP5595
This roof is an example of a Hyperbolic Paraboloid erikdemaine.org/hypar/ Hypars in Architecture
"Hypars and joining hypars in a few special ways have been used extensively in architecture. For example, Curt Siegel's 1962 book Structure and Form in Modern Architecture (page 256) illustrates the roof of the Girls' Grammar School in London (designed by Chamberlin, Powell, and Bonn) which is what we call a “5-hat” with five hypars spread apart slightly. Later (page 264) the idea of joining two 5-hats is suggested, although the two hats are cut to have a curved boundary, making them easy to join. Page 260 shows a photo of the Philips pavilion at the 1958 Brussels exhibition (designed by Le Corbusier) which is a beautiful surface made of eight or so hypars that rests on the ground. A few more wonderful examples with straight boundaries are illustrated by Heinrich Engel in his book mentioned above (pages 228-229), each involving between five and twelve hypars. Finally, a grid of connecting “4-hats” is illustrated and analyzed by Frei Otto in the 1969 book Tensile Structures (volume 2, page 64). "