US3530620A - Element for the construction of dome-shaped structures - Google Patents

Element for the construction of dome-shaped structures Download PDF

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Publication number
US3530620A
US3530620A US716747A US3530620DA US3530620A US 3530620 A US3530620 A US 3530620A US 716747 A US716747 A US 716747A US 3530620D A US3530620D A US 3530620DA US 3530620 A US3530620 A US 3530620A
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United States
Prior art keywords
frame
dome
construction
sides
corner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US716747A
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English (en)
Inventor
Erik Voje Heieren
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Selco AS
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Selco AS
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Filing date
Publication date
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Publication of US3530620A publication Critical patent/US3530620A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B1/3211—Structures with a vertical rotation axis or the like, e.g. semi-spherical structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/327—Arched structures; Vaulted structures; Folded structures comprised of a number of panels or blocs connected together forming a self-supporting structure
    • E04B2001/3276—Panel connection details
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/32—Arched structures; Vaulted structures; Folded structures
    • E04B2001/327—Arched structures; Vaulted structures; Folded structures comprised of a number of panels or blocs connected together forming a self-supporting structure
    • E04B2001/3288—Panel frame details, e.g. flanges of steel sheet panels

Definitions

  • a triangular element for a dome-shaped structure such as a radome, comprises a covered triangular frame the sides of which are interconnected at the corners by means of obliquely positioned plates.
  • the present invention relates to dome-shaped structures, for example, protective domes for radar installations and antennas, the so-called radomes.
  • domes can of course serve as construction for other purposes.
  • the domes are constructed mainly of triangular elements the corners of which, in the finished dome, are tangential to a dome surface.
  • Each triangular element normally consists of a frame and a diaphragm of plastic or metal secured thereto.
  • the actual frame is normally made of metal, e.g. steel.
  • This type of dome is mounted by bolting together the separate elements by means of bolts threaded through holes in the frame sides of the element.
  • the object of the present invention is to provide an element of such a construction that the shape of the element is securely maintained when subject toforces transferred through the bolts, preferably those bolts located closest to the corners of the elements.
  • an element for the construction of dome-shaped structures, for example, protective domes for radar installations.
  • the said element consists of a triangular frame and is characterized in that the separate sides of the frame are held together by means of corner plates positioned obliquely with respect to the plane of the frame and spaced at a distance from the corners.
  • trapezeform corner plates are employed, and the corner plates are arranged in such a way as to be neither horizontal nor vertical with respect to the plane of the frame. In this manner the corner plates secure both the angle of inclination of the sides in relation to the plane of the frame and the corner angle of the frame when subject to forces which are transferred through the bolt hole closest to the corner plates.
  • the side ends of the frame are free and it is unnecessary to attach them together, for instance by means of welding, nor is it necessary for the side ends of the frame to meet.
  • the side ends of the frame do not meet. This fact obviously facilitates the production of the triangular elements in that the exact corner connection, otherwise required, is unnecessary. It is important to note here that the construction of such dome-shaped structures requires comparatively great precision with respect to the separate elements, since errors quickly accumulate and become particularly noticeable in the final construction.
  • the necessary diaphragm of plastic or metal is secured to the frame in that the diaphragm is simply cut in the corners of the triangle and applied over the frame when mounting the elements.
  • the diaphragm is held in place by clamping the side of the element to an adjacent element the diaphragm being thus also clamped between two adjacent frame sides which are held together by means of the said bolts.
  • a simple and inexpensive production is achieved by means of the present invention, and also easy mounting, simple and reasonable replacement possibilities for the diaphragm and a secure attachment of the diaphragm to the frame.
  • FIG. 1 shows a horizontal projection of an element corner
  • FIG. 2 shows a section along the line II-II in FIG. 1, and
  • FIG. 3 shows, in diagram form, a dome constructed of elements according to the invention.
  • the corner of an element shown in FIG. 1 comprises two frame sides 1 and 2, together with a corner plate 6.
  • the corner plate 6 is obliquely positioned, on the drawing at about 45 to the plane of the frame, and, as indicated in FIG. 2, is welded to the sides of the frame.
  • a bolt hole 4 is shown in the frame side 1
  • a bolt hole 5 is shown in frame side 2, by which, as explained above, the separate elements are bolted together.
  • a diaphragm 3 is applied on the element, as shown most elfectively in FIG. 2, and an epoxy bonding agent 7 and 8 is disposed between the diaphragm and the sides of the frame.
  • the use of the bonding agent is not absolutely necessary since the diaphragm will be maintained in sealing relationship between two frame sides when the elements are mounted in a dome as shown schematically in FIG. 3.
  • a triangular element for the construction of domeshaped structures comprising a triangular frame covered by a diaghragm, and corner plates obliquely positioned relative to the plane of the frame adjacent but spaced from the corners of the frame, each said corner plate being secured to and rigidly interconnecting two sides of the frame.
  • the sides of the frame are shorter than the corresponding sides of the triangle, in a manner such that said sides do not meet at the corners.
  • a dome structure comprising a plurality of elements according to claim 1 bolted together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Treating Waste Gases (AREA)
  • Tents Or Canopies (AREA)
US716747A 1967-04-08 1968-03-28 Element for the construction of dome-shaped structures Expired - Lifetime US3530620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO167637A NO119249B (enrdf_load_stackoverflow) 1967-04-08 1967-04-08

Publications (1)

Publication Number Publication Date
US3530620A true US3530620A (en) 1970-09-29

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ID=19910013

Family Applications (1)

Application Number Title Priority Date Filing Date
US716747A Expired - Lifetime US3530620A (en) 1967-04-08 1968-03-28 Element for the construction of dome-shaped structures

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US (1) US3530620A (enrdf_load_stackoverflow)
NO (1) NO119249B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785101A (en) * 1972-03-16 1974-01-15 Geometrics Construction for spherical structure and component therefor
US3844074A (en) * 1973-04-13 1974-10-29 Geometrics Wall construction for spherical structures
US3877079A (en) * 1973-12-10 1975-04-15 Bryant Mary Louetta O Method for making an article conformable to a variably shaped cylindrical surface
US3955329A (en) * 1974-05-03 1976-05-11 Hannula Wayne A Hollow structure
US9506240B1 (en) 2016-03-26 2016-11-29 Adam Zachary Winter Dome structure with square and homogeneous elements
WO2019195700A1 (en) * 2018-04-05 2019-10-10 L3 Essco Incorporated A metal space frame radome
USD968646S1 (en) 2021-07-21 2022-11-01 Msg Entertainment Group, Llc Building

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939186A (en) * 1956-04-09 1960-06-07 North American Aviation Inc Enclosure device
US3042050A (en) * 1960-02-16 1962-07-03 Gleason Reel Corp Thermal barrier
US3255556A (en) * 1963-02-14 1966-06-14 Electronic Space Structures Co Panel and spherical structure
US3323820A (en) * 1965-04-19 1967-06-06 Whittaker Corp Space frame structures
US3344565A (en) * 1965-01-27 1967-10-03 Norman H Nye Interlocked lightweight building structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939186A (en) * 1956-04-09 1960-06-07 North American Aviation Inc Enclosure device
US3042050A (en) * 1960-02-16 1962-07-03 Gleason Reel Corp Thermal barrier
US3255556A (en) * 1963-02-14 1966-06-14 Electronic Space Structures Co Panel and spherical structure
US3344565A (en) * 1965-01-27 1967-10-03 Norman H Nye Interlocked lightweight building structure
US3323820A (en) * 1965-04-19 1967-06-06 Whittaker Corp Space frame structures

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785101A (en) * 1972-03-16 1974-01-15 Geometrics Construction for spherical structure and component therefor
US3844074A (en) * 1973-04-13 1974-10-29 Geometrics Wall construction for spherical structures
US3877079A (en) * 1973-12-10 1975-04-15 Bryant Mary Louetta O Method for making an article conformable to a variably shaped cylindrical surface
US3955329A (en) * 1974-05-03 1976-05-11 Hannula Wayne A Hollow structure
US9506240B1 (en) 2016-03-26 2016-11-29 Adam Zachary Winter Dome structure with square and homogeneous elements
WO2019195700A1 (en) * 2018-04-05 2019-10-10 L3 Essco Incorporated A metal space frame radome
USD968646S1 (en) 2021-07-21 2022-11-01 Msg Entertainment Group, Llc Building

Also Published As

Publication number Publication date
NO119249B (enrdf_load_stackoverflow) 1970-04-20

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