 The American Pavilion of Expo '67, by R. Buckminster Fuller, now the Biosphère, on Île Sainte-Hélène, Montreal A geodesic dome(IPA: jiədɛzɪk/jiədizɪk dəʊm) is an almost spherical structure based on a network of struts arranged on great circles (geodesics) lying on the surface of a sphere. The geodesics intersect to form triangular elements that create local triangular rigidity and distribute the stress. Expo 67 American Pavilion (now the Biosphère), by R. Buckminster Fuller, on Île Sainte-Hélène, Montreal. ...
Expo 67 American Pavilion (now the Biosphère), by R. Buckminster Fuller, on Île Sainte-Hélène, Montreal. ...
{{Canadian City/Disable Field={{{Disable Motto Link}}}}} Motto: Concordia Salus (Salvation through harmony) Ville de Montréal, Québec, Canada Location. ...
The International Phonetic Alphabet is a phonetic alphabet used by linguists to accurately and uniquely represent each of the wide variety of sounds (phones or phonemes) the human vocal apparatus can produce. ...
A great circle on a sphere A great circle is a circle on the surface of a sphere that has the same diameter as the sphere, dividing the sphere into two equal hemispheres. ...
In mathematics, a geodesic is a generalization of the notion of a straight line to curved spaces. ...
A sphere is, roughly speaking, a ball-shaped object. ...
A 5-frequency triangle Missing image Image:base_tri_X.jpg Geodesic domes are created by taking a polyhedron of choice, then subdividing its triangular faces into smaller triangular faces. ...
Stress has different meanings in different fields: Stress (physics); see also tensile stress, shear stress and pressure. ...
Of all known structures, a geodesic dome has the highest ratio of enclosed area to weight. Geodesic domes are far stronger as units than the individual struts would suggest. It is common for a new dome to reach a "critical mass" during construction, shift slightly, and lift any attached scaffolding from the ground. St Peters Basilica, Rome A dome is a common structural element of architecture that resembles the hollow upper half of a sphere. ...
Geodesic domes are designed by taking a Platonic solid, such as an icosahedron, and then filling each face with a regular pattern of triangles bulged out so that their vertices lie in the surface of a sphere. The trick is that the sub-pattern of triangles should create "geodesics", great circles to distribute stress across the structure. In solid geometry and some ancient physical theories, a Platonic solid is a convex polyhedron with all its faces being regular polygons of the same size and shape, and the same number of faces meeting at each of its vertices. ...
An icosahedron [ˌaıkəsəhiːdrən] noun (plural: -drons, -dra [-drə]) is a polyhedron having 20 faces. ...
There is reason to believe that geodesic construction can be effectively extended to any shape, although it works best in shapes that lack corners to concentrate stress.
History
Buckminster Fuller developed and named the geodesic dome from field experiments with Kenneth Snelson at Black Mountain College in the late 1940's. Researchers have found antecedent experiments like the 1913 geodesic planetarium dome at the Carl Zeiss plant in Jena, Germany, but it was Fuller that exploited, patented, and developed the idea. In the US postage stamp commemerating Buckminster Fuller and his contributions to architecture and science, some of his inventions are visible. ...
Kenneth Snelson (born 1927) is a contemporary sculptor whose works are designed usine flexible and rigid components in a mutually supportive arrangement, according to the idea of tensegrity. ...
From the time of its founding by John Rice in 1933, Black Mountain College, located near Asheville, North Carolina, was known as one of the leading progressive schools of art in the United States. ...
1913 is a common year starting on Wednesday. ...
Carl Zeiss Carl Zeiss (September 11, 1816 – December 3, 1888) was an optician commonly known for the company he founded, Zeiss. ...
Map of Germany showing Jena Jena is a town in central Germany on the River Saale. ...
The geodesic dome appealed to Fuller because it was extremely strong for its weight, its "omnitriangulated" surface provided an inherently stable structure, and because a sphere encloses the greatest volume for the least surface area. Fuller had hopes that the geodesic dome would help address the postwar housing crisis. This was in line with his prior hopes for both versions of the Dymaxion House. The Dymaxion House was developed by inventor Buckminster Fuller to address several failures he perceived with existing homebuilding techniques. ...
From an engineering perspective geodesic domes are far superior to traditional right-angle post-and-beam construction techniques, which are far less efficient, far heavier, inherently instable, and rely on gravity to stand up. But there were drawbacks.
While strong, domes react to external stresses in ways that confound traditional engineering. Some tensegrity structures will retain their shape and contract evenly when stressed on the outside, and some don't. One dome built at Princeton was hit by a snowplow, which popped the struts on the opposing side. To this day, the behavior of tension and compression forces in the different varieties of geodesic structures is not well understood. Traditionally trained structural engineers cannot guarantee their performance and safety. This article needs cleanup. ...
Princeton is the name of several places in the United States of America: Princeton, Florida Princeton, Illinois Princeton, Indiana Princeton, Iowa Princeton, Kansas Princeton, Kentucky Princeton, Louisiana Princeton, Maine Princeton, Massachusetts Princeton, Minnesota Princeton, Missouri Princeton, New Jersey Princeton, North Carolina Princeton, South Carolina Princeton, Texas Princeton, West Virginia Princeton...
The dome was successfully adopted for specialized industrial use, like the 1958 Union Tank Car Company dome near Baton Rouge, Louisiana and specialty buildings like the Henry Kaiser dome, auditoriums, weather observatories, and storage facilities. The dome was soon breaking records for covered surface, enclosed volume, and construction speed. Leveraging the geodesic dome's stability, the US Air Force experimented with helicopter-deliverable units. The dome was introduced to a wider audience at Expo '67 the Montreal, Canada World's Fair as part of the American Pavilion. The structure's covering later burned, but the structure itself still stands and, under the name Biosphère, currently houses an interpretive museum about the Saint Lawrence River. Capitol Building Baton Rouge (pronounced in English, and in French) is the capital of Louisiana, a state of the United States of America. ...
The 1967 International and Universal Exposition, or simply Expo 67 was a Worlds Fair held in Montreal, Quebec, Canada in 1967 to coincide with the Canadian Centennial that year. ...
This article needs cleanup. ...
Worlds Fair is the generic name for various large expositions held since the mid 19th century. ...
A museum is typically a non-profit, permanent institution in the service of society and of its development, open to the public, which acquires, conserves, researches, communicates and exhibits, for purposes of study, education enjoyment, the tangible and intangible evidence of people and their environment. ...
The Saint Lawrence River (French: fleuve Saint-Laurent) is a large west-to-east flowing river in the middle latitudes of North America, connecting the Great Lakes with the Atlantic Ocean. ...
In the "Climatron", built in 1960 at Missouri Botanical Gardens, the original plexiglass panels discolored and were replaced with glass. Residential domes were less successful. Fuller himself lived in a geodesic dome in Carbondale, Illinois, at the corner of Forest and Cherry, but they never caught on to the extent that Fuller hoped. Download high resolution version (2816x2120, 1523 KB)The Climatron at the Missouri Botanical Gardens in Saint Louis, Missouri. ...
Download high resolution version (2816x2120, 1523 KB)The Climatron at the Missouri Botanical Gardens in Saint Louis, Missouri. ...
Categories: US geography stubs | Botanical gardens | Missouri landmarks | Saint Louis, Missouri ...
Carbondale is a city in extreme south central Illinois in the midwestern United States, about an hour north of Cairo. ...
Chord factors Of great importance is the chord factor, the factor by which the radius of a dome must be multiplied to yield the length of a particular strut. The chord factor is twice the sine of half the central angle of the chord, but determining the central angle requires some non-trivial spherical geometry. In Geodesic Math and How to Use It Hugh Kenner writes, "Tables of chord factors, containing as they do the essential design information for spherical systems, were for many years guarded like military secrets. As late as 1966, some 3v icosa figures from Popular Science Monthly were all anyone outside the circle of Fuller licensees had to go on." (page 57, 1976 edition) Other tables became available with publication of Lloyd Kahn's Domebook 1 (1970) and Domebook 2 (1971). With advent of personal computers, the mathematics became more accessible. Rick Bono's Dome software, outputs a script that can be used with the POV-ray raytracer to produce 3D pictures of domes. Domes of differing frequencies, or amount of subdivision of a polyhedral face, require differing results. Frequency, in this context, is symbolized by v. Spherical geometry is the geometry of the two-dimensional surface of a sphere. ...
Issue of Popular Science Popular Science is an American monthly magazine founded in 1872 carrying articles for the general reader on science and technology subjects. ...
The Utah Teapot, rendered in POV-Ray. ...
A ray traced scene. ...
Advantages of domes They are very strong. The basic structure erects very quickly with a small crew, and light-weight pieces. Domes as large as fifty meters have been constructed in the wilderness from rough materials without a crane. The dome is also aerodynamic, so it loses relatively little heat to wind chill. Solar heating is possible by placing an arc of windows across the dome: the more heating needed the wider the arc should be, to encompass more of the year.
One residential design called a dome home employs the dome's aerodynamic properties to be resistant to high winds, such as those created by hurricanes. This article is about weather phenomena. ...
Disadvantages of dome homes However, as a housing system the dome has numerous drawbacks and problems:
The shape of a dome house makes it difficult to conform to code requirements for placement of sewer vents and chimneys. Off the shelf, all building materials come in rectangular shapes. Fire escapes are problematical; codes require them, and they’re expensive. Windows conforming to code can cost anywhere from five to fifteen times as much as windows in conventional houses. Scrap from cutting (i.e., waste) can run to a high proportion, driving costs up. Professional electrical wiring costs more because of increased labor time; but even owner-wired situations are costly, because more of certain materials is required with a dome versus conventional construction.
Domes have unique interior air-stratification and air-moisture-distribution characteristics. These tend to result in a lack of longevity if wood framing or interior paneling (in the upper portions) has been used, as is often the case with a residential dome. Privacy is compromised in a dome since a dome is difficult to partition satisfactorily, also since sounds circulate (ambience problems are mentioned below). The dome shape leaves the vast majority of the interior surface unusable because of the sharply sloping roof lines. For example, in a 20 foot tall dome, only the bottom 8 feet or so are really usable. This leaves a large volume that must be heated, yet cannot be lived in.
Dome builders find it hard to seal domes against rain. The most effective method with a wooden dome is to shingle the dome. Another method is to use a one-piece reinforced concrete or plastic dome. Some domes have been constructed from plastic or waxed cardboard triangles that overlapped in such a way as to shed water. Domes tend to develop leaks because the sun heats the dome during the daily cycle and the stresses are conveyed through the structure as the sun moves through the sky much as one might break the shell of a hard-boiled egg by simultaneously pressing and rolling.
On the other hand, in Bucky Works : Buckminster Fuller's Ideas for Today, Fuller's former student J. Baldwin states that there is no reason for a dome that is properly designed and constructed and uses proper materials to leak and that some designs cannot leak. James Tennant Baldwin (whose books and articles have been published under the names J. Baldwin, Jay Baldwin, and James T. Baldwin) is an American industrial designer and writer born in 1934. ...
Sounds, smells and even reflected light tend to be conveyed through the entire structure. Lloyd Kahn, author of Domebook One, Domebook 2 and later, Shelter, became disillusioned with domes by 1973, and details many more problems with dome homes on his website[1] calling them smart but not wise. Kahn is the source of many of the criticisms listed above, in this article section, having gathered information widely.
Finally, the furnishing and fitting world is designed with flat surfaces in mind, and installing something as simple as a sofa results in a half-moon behind the sofa being wasted.
Methods of construction Wooden domes drill a hole in the width of a strut. A stainless steel band locks the strut's hole to a circle of steel pipe. This method lets the struts be simply cut to the exact needed length. Triangles of exterior plywood are then nailed to the struts. The dome is wrapped with several stapled layers of tar paper, from the bottom to the top in order to shed water, and finished with shingles.
Temporary greenhouse domes have been constructed by stapling plastic sheeting onto a dome constructed from 1x1s. The result is warm, movable by hand in sizes less than 20 feet, and cheap. It should be staked to the ground, because it will fly away in strong wind.
Steel-framework domes can be easily constructed of electrical conduit. One flattens the end of a strut, and drills bolt holes at the needed length. A single bolt secures a vertex of struts. The nuts are usually set with removable locking compound, or if the dome is portable, have a castle nut with a cotter pin. This is the standard way to construct domes for jungle-gyms.
Concrete and foam plastic domes generally start with a steel framework dome, and then wrap it with chicken-wire and wire screen for reinforcement. The chicken wire and screen is tied to the framework with wire ties. The material is sprayed or molded onto the frame. Tests should be performed with small squares to achieve the correct consistency of concrete or plastic. Generally, several coats are necessary on the inside and outside. The last step is to saturate concrete or polyester domes with a thin layer of epoxy compound to shed water.
 A CGI geodesic sphere rendered using freeware DOME Software and POV-Ray software Some concrete domes have been constructed from prefabricated prestressed steel-reinforced concrete panels that can be bolted into place. The bolts are within raised receptacles covered with little concrete caps to shed water. The triangles overlap to shed water. The triangles in this method can be molded in forms patterned in sand with wooden patterns, but the concrete triangles are usually so heavy they must be placed with a crane. This construction is well-suited to domes because there is no place for water to pool on the concrete and leak through. The metal fasteners, joints and internal steel frames remain dry, preventing frost and corrosion damage. The concrete resists sun and weathering. Some form of internal flashing or caulking must be placed over the joints to prevent drafts. The 1963 Cinerama Dome was built from precast concrete hexagons and pentagons. Geodesic Dome (chrome) rendered by POV-Ray and dome software (GNU) Source: http://www. ...
Geodesic Dome (chrome) rendered by POV-Ray and dome software (GNU) Source: http://www. ...
The Cinerama Dome, as decorated for Shrek 2 Pacific Theatres Cinerama Dome at 6360 Sunset Boulevard in Hollywood has been a landmark movie theater since its opening on November 7, 1963. ...
Largest geodesic dome structures Many geodesic domes have been built and are in use. According to the Buckminster Fuller Institute Web site, the largest geodesic-dome structures (listed in descending order from largest diameter) are: - Fantasy Entertainment Complex: Kyosho Isle, Japan, 710 feet
- Multi-Purpose Arena: Nagoya, Japan, 614 feet
- Tacoma Dome: Tacoma, WA, USA, 530 feet
- Superior Dome: Northern Michigan University. Marquette, MI, USA, 525 feet
- Walkup Skydome: Northern Arizona University. Flagstaff, AZ, USA, 502 feet
- Round Valley High School Stadium: Springerville, AZ, USA, 440 feet
- Former Spruce Goose Hangar: Long Beach, CA, USA, 415 feet
- Formosa Plastics Storage Facility: Mai Liao, Taiwan, 402 feet
- Union Tank Car Maintenance Facility: Baton Rouge, LA, USA, 384 feet
- Lehigh Portland Cement Storage Facility: Union Bridge, MD, USA, 374 feet
Nagoya Castle in June of 2004. ...
The Tacoma Dome is an indoor arena located in Tacoma, Washington. ...
Tacoma, with Mount Rainier in background You may be looking for Takoma or Tacoma class frigate. ...
The Superior Dome, which opened as the world’s largest wooden dome on September 14, 1991, is a domed stadium on the campus of Northern Michigan University in Marquette, Michigan. ...
Northern Michigan University Logo Northern Michigan University is an American four year accredited institution of higher learning located in Marquette, Michigan. ...
The old ore dock in Marquette Marquette is a city located in Marquette County in the Upper Peninsula of Michigan. ...
Northern Arizona University (NAU) is a university in Flagstaff, Arizona in the United States. ...
Flagstaff (Navajo Kinłání) is a city located in Coconino County in northern Arizona, in the west of the United States. ...
Springerville is a town located in Apache County, Arizona. ...
Hughes H-4 Hercules The Spruce Goose is a nickname commonly given to the Hughes H-4 Hercules, an aircraft designed and built by the Hughes Aircraft company, Howard Hughes plane company. ...
County Los Angeles County, California Area - Total - Water 170. ...
Capitol Building Baton Rouge is the capital of Louisiana, a state of the United States of America. ...
Union Bridge is a town located in Carroll County, Maryland. ...
See also Fullerene C540 Fullerenes are one of only 4 types of naturally occurring forms of carbon (the other three being diamond, graphite and ceraphite). ...
A Hoberman Sphere is a structure that resembles a geodesic dome, but is capable of folding down to a fraction of its normal size by the scissor-like action of its joints. ...
Truss bridge for a single track railway, converted to pedestrian use and pipeline support. ...
References - Geodesic Math and How to Use It by Hugh Kenner, University of California Press (October 1, 2003) ISBN 0520239318
- Bucky Works : Buckminster Fuller's Ideas for Today by J. Baldwin, John Wiley & Sons (March, 1996) ISBN 0471129534
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