Hypar Roof Structures
George nez pioneered and wrote the book on hypar roofs along with albert knott.
Hypar roof structures. The hypar thin shell concrete roof is a roofing system developed by george nez and albert knott of tsc global who trained groups in several developing countries in how to construct them. The bottom of the roof is 80 ft. This double cantilever roof structure consists of a series of hypar shells made of this steel decking. Utilising the hyperbolic paraboloid orion hypar fabric canopies are probably the simplest of all tensile structures with a distinctive shape created when the diagonally opposite corners of a sail are raised.
Hypar roofs are lightweight enough they can be built on the ground and lifted into place. His bread and butter structure was the canopy roof says maria garlock professor of civil and environmental engineering at princeton. This twist produces the hypar form while opposing tension forces keep the canopy membrane tight across the span. Maximum to 4 ft.
Cantilevers are 230 ft. A tensile membrane structure is most often used as a roof as they can economically and attractively span large distances. The hypar roof became candela s trademark. The historical meaning is a synonym for a gable roof particularly a dual pitched roof on a tower also called a pack saddle roof.
Mathematically a saddle shape contains at least one saddle point. A tensile structure is a structure elements carrying only tension and no compression or bending. They re extremely durable and practical and have been used around the world for decades. These type of structure is commonly found in sports facilities warehousing and storage buildings and exhibition venues.
Hyperboloid structures are architectural structures designed using a hyperboloid in one sheet. Wide and have a depth that tapers from 40 ft. Abstract this paper introduces an innovative structural system consisting of four sided hyperbolic paraboloid hypar roof umbrellasas hard countermeasures against nearshore hazards. One of the groups they trained is technology for tomorrow t4t who is offering the roofs as a building product in uganda.
Often these are tall structures such as towers where the hyperboloid geometry s structural strength is used to support an object high off the ground but hyperboloid geometry is also often used for decorative effect as well as structural economy. In this article we briefly discuss the types shapes. Sometimes referred to as a hypar the saddle roof may also be formed as a tensegrity structure. Built on a module design the roof currently has eight pairs of balanced hypars.
This is the same type of roof used on the free burma ranger clinic posted earlier.