US3798864A - Supporting structures and methods of making them - Google Patents

Supporting structures and methods of making them Download PDF

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Publication number
US3798864A
US3798864A US00188735A US18873571A US3798864A US 3798864 A US3798864 A US 3798864A US 00188735 A US00188735 A US 00188735A US 18873571 A US18873571 A US 18873571A US 3798864 A US3798864 A US 3798864A
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United States
Prior art keywords
wires
longitudinal rods
supporting structure
rods
helically wound
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Expired - Lifetime
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US00188735A
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English (en)
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H Georgii
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/065—Light-weight girders, e.g. with precast parts

Definitions

  • ABSTRACT A supporting structure comprises longitudinal rods and transverse straight rods interconnecting the longim P n tudinal rods.
  • the transverse straight rods are constituted by two systems of helically wound wires, and each of the systems comprises at least two wires of the same cross sectional shape.
  • the invention has for its object to provide a supporting structure in which the transverse straight rods are constituted by two systems of helically wound wire's, each of said systems comprising at least two wires of the same cross sectional shape and the wires of one system being wound in one direction while the wires of the other system are wound in the opposite direction, and in which the helically wound wires are united with the longitudinal rods at the crossings between the longitudinal rods and the wires.
  • the supporting structure according to the present invention which includes several oppositely directed helices thus constitutes a statically determinate system and implies great advantages primarily in point of production, compared to supporting structures in which the transverse rods to a major or minor extent are formed by separate units.
  • the wires of one system are arranged outwardly of the longitudinal rods of the supporting structure while the wires of the other system are arranged, inwardly of the longitudinal rods of the supporting structure.
  • this arrangement implies a simple-feed because the oppositely directed helices cannot interlock.
  • all of the wires in the two systems can be arranged outwardly or inwardly of the longitudinal rods of the supporting structure.
  • the number of wires in the two systems is dependent on the configuration of the section as well as the desired effective length thereof. If the section of the supporting structure determined by the longitudinal rods is square, the two systems of helically wound wires shall each include two wires to provide a statically determinate system. If further wires are arranged the effective lengths of the sections can be reduced by interconnecting the wires at the crossings. If the section of the supporting structure determined by the longitudinal rods is triangular, the two systems of helically wound wiresv shall each include three wires to provide a statically de-. terminate system. In certain cases, however, one of said wires may be dispensed with. For a reduction of the effective lengths of the sections the systems can each include five or seven wires. I
  • the invention also relates to a method of making the supporting structure described in the foregoing.
  • This method comprises advancing longitudinal rods and those helically wound wires in an extended state, which are to b arranged inwardly of the longitudinal rods, through a magazine or the manufacturing station for those helically wound wires which are to be arranged outwardly of the longitudinal rods, moving the helically wound wires of the two systems and the longitudinal rods successively into position with the aid of templates, and establishing the connection between the helically wound wires and the longitudinal rods.
  • FIGS. 1 to 3 are perspective views showing the design of the supporting structure in one embodiment thereof
  • FIG. 4 is a cross section of the supporting structure
  • FIG. 5 is a cross section of the supporting structure in another embodiment thereof.
  • FIG. 6 is a developed plan view of the supporting structure shown in FIG. 5;
  • FIG. 7 is a cross section of the supporting structure in a prestressed embodiment thereof.
  • FIG. 8 is a view of the supporting structure partially embedded in a concrete slab or'plastics panel
  • FIG. 9 is a plan view of one machine for making the supporting structure
  • FIG. 10 is a section of said machine
  • FIG. 11 is a plan view of another machine for making the supporting structure.
  • the supporting structure illustrated in FIGS. 1 to 4 is of square section and comprises four longitudinal rods 1 to 4 located at the corners of the section and united with transverse rods. These transverse rods are constituted by two systems of helically wound wires 5 to 8. The wires 5 to 6 of one system are wound in one direction while the'wires 7 to 8 of the other system are wound in the opposite direction. The resulting helically wound wires 5 to 8 are connected with the longitudinal wires 1 to 4 at the crossings between said rods and said wires.
  • the wires 5 and 6 of one system are arranged outwardly of the longitudinal rods [to 4 of the supporting structure, while the wires 7 and8 of the other system are arranged inwardly of said longitudinal rods.
  • the helices are given such a cross sectional shape as to fixedly retain the longitudinal rods I to 4 between them at the corners.
  • FIG. 1 shows the four longitudinal rods 1 to,4 and the helically wound wire 5.
  • FIG. 2 shows the four longitudinal rods l to 4 and the helically wound wires 5 and 6 which together constitute one system.
  • FIG. 3 shows the entire supporting structure supplemented with the helically wound wires 7 and 8 which together constitute the other system and thus are oppositely directed to the helically wound wires 5 and 6.
  • the supporting structure illustrated in FIGS. 5 and 6 is of triangular cross sectional shape and is formed by the longitudinal rods 11 to. 13 located the corners of the section, and by the helically wound wires 14 to 19. Of these wires, wires 14 to 16 are wound in one direction while wires 17 to 19 are wound in the opposite direction, which will clearly appear from FIG. 6 by the different showing of the wires.
  • the supporting structure is prestressed with the aid of prestressing wires 20 which are guided between the helically wound wires arranged inwardly and outwardly of the longitudinal rods.
  • the supporting structure is shown partially embedded in a concrete slab or plastics panel.
  • the supporting structure will be made from steel but other materials such as aluminium are also useful.
  • FIGS. 9 and 10 illustrate a machine for making the supporting structure shown in FIGS. 1 to 4.
  • the machine has a production belt for advancing rods 1 to 4 which are successively joined together with fresh rods from the supply 21. 22 designates a buffer store for the a cutting operation is relatively seldom performed since the wires 5 to 8 in a pack will suffice for a plurality of supporting structures.
  • the wires 5 to 8 are then pulled out and exactly oriented with respect to the rods 1 to 4 before welding is carried out.
  • the welding unit 23 shown in section in FIG. 11 is so arranged that the welding heat at each welding point between rods 1 to 4 and wires 5 to 8 will be the same. The welding heat is symmetrically balanced.
  • the finished supporting structure is cut to suitable lengths by means of a precision cutting knife 24.
  • the resulting supporting structures are transferred to the buffer store 25.
  • the machine shown in FIG. 11 is intended for allautomatic production.
  • the feed of the rods 1 to 4 is here performed over four separate stations 26 including reels and straightening tools. Where heavier dimensions are concerned, this feed is replaced by continuous joining rod by rod.
  • the winding unit 27 for the inner wires 7 and 8 thus comprises a movable rotary unit having a number of reels and straightening tools and a stationary unit with a head about which the wires 7 and 8 are wound.
  • the helically wound wires 7 and 8 are stretched to realize a reduction of their section and to permit their passage through the shaft of the winding unit 28.
  • the rods 1 to 4 are collected by a series of rollers 30 to realize their corresponding passage.
  • the winding unit for the outer wires 5 and 6 is constructed in the same way as the unit 27 for the inner wires 7 and 8, but has the opposite direction of rotation. After the winding unit 28 the machine illustrated in FIG. 11 is designed in the same way as that illustrated in FIGS. 9 and 10.
  • a supporting structure comprising longitudinal rods and transverse straight rods interconnecting the longitudinal rods, wherein the transverse straight rods are constituted by two systems of helically wound wires, each of said systems comprising at least two wires of the same cross-sectional shape with the wires of one system being wound in one direction and disposed outwardly of the longitudinal rods of the support structure while the wires of the other system are wound in the opposite direction and disposed inwardly of the longitudinal rods of the support structure, with each inwardly disposed wire including portions cooperating with portions of an outwardly disposed wire to define a generally transverse unit connecting said longitudinal rods, and said inwardly and outwardly disposed wires also including portions extending diagonally between transverse connecting units in connected relationship with pairs of said longitudinal rods whereby the helically wound wires are united with the longitudinal rods at the crossings between the longitudinal rods and the wires.
  • a method of making a supporting structure which comprises longitudinal rods and transverse straight rods interconnecting the longitudinal rods, said transverse straight rods being constituted by two systems of helically wound wires, each of said systems comprising at least two wires of the same cross sectional shape and the wires of one system being wound in one direction and arranged outwardly of the longitudinal rods of-the supporting structure while the wires of the other system are wound in the opposite direction and arranged in-' wardly of the longitudinal rods of the supporting structure, and the helically wound wires being united with the longitudinal wires at the crossings between the longitudinal rods and the wires, said method comprising advancing longitudinal rods and those helically wound wires in an extended state, which are to be arranged inwardly of the longitudinal rods, through a magazine or the manufacturing station for those helically wound wires which are to be arranged outwardly of the longitudinal rods, successively positioning the helically wound wires in the two systems and the longitudinal rods with the aid of templates, and

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wire Processing (AREA)
  • Reinforcement Elements For Buildings (AREA)
US00188735A 1970-10-16 1971-10-13 Supporting structures and methods of making them Expired - Lifetime US3798864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1397670 1970-10-16

Publications (1)

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US3798864A true US3798864A (en) 1974-03-26

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US00188735A Expired - Lifetime US3798864A (en) 1970-10-16 1971-10-13 Supporting structures and methods of making them

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US (1) US3798864A (fr)
JP (1) JPS5653062B1 (fr)
AU (1) AU473326B2 (fr)
CA (1) CA957817A (fr)
DE (1) DE2151102C3 (fr)
FR (1) FR2111424A5 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152397A2 (fr) * 1984-01-24 1985-08-21 Rakennusvalmiste Oy Armature en hélice pour éléments en béton préfabriqués et procédé pour la fabrication de cette armature
GB2164674A (en) * 1984-09-18 1986-03-26 Targetti Sankey Spa Assembly of reticular, structural components
US4704754A (en) * 1982-04-28 1987-11-10 Bonasso S G Tension arch structure
US5921048A (en) * 1996-04-18 1999-07-13 Brigham Young University Three-dimensional iso-tross structure
WO2002010535A3 (fr) * 2000-07-28 2003-08-14 Univ Brigham Young Sructure a treillis isometrique
US20040107669A1 (en) * 2002-12-05 2004-06-10 Francom Larry R. Open frames for providing structural support and related methods
US20040247866A1 (en) * 2001-08-17 2004-12-09 Jensen David W. Complex composite structures and method and apparatus for fabricating same from continuous fibers
US20060032178A1 (en) * 2002-09-04 2006-02-16 David Jensen Three-dimensional grid panel
US8201294B1 (en) 2010-01-28 2012-06-19 Haewon Lee Triple helix horizontal spanning structure
CN102518253A (zh) * 2011-12-10 2012-06-27 西北工业大学 一种仿竹桁架结构
US20130291709A1 (en) * 2012-05-01 2013-11-07 University Of Maryland Continuous wound composite truss structures
US20180251980A1 (en) * 2017-03-06 2018-09-06 Isotruss Industries Truss structure
US20190003181A1 (en) * 2017-03-06 2019-01-03 Isotruss Industries Llc Truss structure
USD895157S1 (en) 2018-03-06 2020-09-01 IsoTruss Indsutries LLC Longitudinal beam
USD896401S1 (en) 2018-03-06 2020-09-15 Isotruss Industries Llc Beam
GB2594037A (en) * 2020-02-13 2021-10-20 Silver Peter Helical structural framework with torsional integrity

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE367856B (fr) * 1972-10-04 1974-06-10 Hydro Betong Ab
JPH01168472U (fr) * 1988-05-17 1989-11-28
JPH02105879U (fr) * 1989-02-08 1990-08-22
FI89400C (fi) * 1990-08-21 1993-09-27 Gesertek Oy Balkkonstruktion
AU757714B2 (en) * 1996-02-29 2003-03-06 Lg Electronics Inc. Geared motor
RU2452828C1 (ru) * 2010-12-30 2012-06-10 Лема Хамидович Базаев Арматурный элемент

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD18924A (fr) *
US145545A (en) * 1873-12-16 Improvement in bridge-coluivins
US1594505A (en) * 1920-05-18 1926-08-03 Lewis A Frye Trussed girder
US1675188A (en) * 1927-02-03 1928-06-26 Macomber Steel Company Post
US1793928A (en) * 1928-10-06 1931-02-24 Victor F Hammel Cylindrical structure
US2075772A (en) * 1935-08-09 1937-03-30 United States Gypsum Co Stud or joist
US3501920A (en) * 1967-11-15 1970-03-24 Nippon Concrete Ind Co Ltd Reinforced concrete poles,piles and the like
US3532315A (en) * 1967-03-06 1970-10-06 Structural Glass Ltd Antenna wire support structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT184714B (de) * 1953-03-16 1956-02-25 Herbert Dipl Ing Ainedter Deckenträger
CH354919A (fr) * 1957-07-23 1961-06-15 Frantz Rene Procédé de fabrication d'une armature à treillis, installation pour la mise en oeuvre du procëdë et armature à treillis obtenue par ce procèdé
JPH0540371Y2 (fr) * 1988-06-27 1993-10-13
JP2532078Y2 (ja) * 1989-02-14 1997-04-09 株式会社興人 包装体

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD18924A (fr) *
US145545A (en) * 1873-12-16 Improvement in bridge-coluivins
US1594505A (en) * 1920-05-18 1926-08-03 Lewis A Frye Trussed girder
US1675188A (en) * 1927-02-03 1928-06-26 Macomber Steel Company Post
US1793928A (en) * 1928-10-06 1931-02-24 Victor F Hammel Cylindrical structure
US2075772A (en) * 1935-08-09 1937-03-30 United States Gypsum Co Stud or joist
US3532315A (en) * 1967-03-06 1970-10-06 Structural Glass Ltd Antenna wire support structure
US3501920A (en) * 1967-11-15 1970-03-24 Nippon Concrete Ind Co Ltd Reinforced concrete poles,piles and the like

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704754A (en) * 1982-04-28 1987-11-10 Bonasso S G Tension arch structure
EP0152397A3 (fr) * 1984-01-24 1988-03-30 Rakennusvalmiste Oy Armature en hélice pour éléments en béton préfabriqués et procédé pour la fabrication de cette armature
EP0152397A2 (fr) * 1984-01-24 1985-08-21 Rakennusvalmiste Oy Armature en hélice pour éléments en béton préfabriqués et procédé pour la fabrication de cette armature
GB2164674A (en) * 1984-09-18 1986-03-26 Targetti Sankey Spa Assembly of reticular, structural components
US5921048A (en) * 1996-04-18 1999-07-13 Brigham Young University Three-dimensional iso-tross structure
US20050115186A1 (en) * 2000-07-28 2005-06-02 Jensen David W. Iso-truss structure
WO2002010535A3 (fr) * 2000-07-28 2003-08-14 Univ Brigham Young Sructure a treillis isometrique
EA005355B1 (ru) * 2000-07-28 2005-02-24 Бригем Янг Юниверсити Конструктивный элемент и способ его образования
US7132027B2 (en) 2001-08-17 2006-11-07 Brigham Young University Complex composite structures and method and apparatus for fabricating same from continuous fibers
US20040247866A1 (en) * 2001-08-17 2004-12-09 Jensen David W. Complex composite structures and method and apparatus for fabricating same from continuous fibers
US20060032178A1 (en) * 2002-09-04 2006-02-16 David Jensen Three-dimensional grid panel
US7155872B2 (en) * 2002-12-05 2007-01-02 Francom Larry R Open frames for providing structural support and related methods
WO2004053260A3 (fr) * 2002-12-05 2005-03-24 Larry Francom Cadres ouverts assurant un support structural et methodes connexes
WO2004053260A2 (fr) * 2002-12-05 2004-06-24 Larry Francom Cadres ouverts assurant un support structural et methodes connexes
US20040107669A1 (en) * 2002-12-05 2004-06-10 Francom Larry R. Open frames for providing structural support and related methods
US8201294B1 (en) 2010-01-28 2012-06-19 Haewon Lee Triple helix horizontal spanning structure
CN102518253A (zh) * 2011-12-10 2012-06-27 西北工业大学 一种仿竹桁架结构
CN102518253B (zh) * 2011-12-10 2013-12-25 西北工业大学 一种仿竹桁架结构
US20130291709A1 (en) * 2012-05-01 2013-11-07 University Of Maryland Continuous wound composite truss structures
US9435060B2 (en) * 2012-05-01 2016-09-06 University Of Maryland Continuous wound composite truss structures
US20180251980A1 (en) * 2017-03-06 2018-09-06 Isotruss Industries Truss structure
US20190003181A1 (en) * 2017-03-06 2019-01-03 Isotruss Industries Llc Truss structure
US10180000B2 (en) * 2017-03-06 2019-01-15 Isotruss Industries Llc Composite lattice beam
US10557267B2 (en) * 2017-03-06 2020-02-11 Isotruss Industries Llc Truss structure
US10584491B2 (en) * 2017-03-06 2020-03-10 Isotruss Industries Llc Truss structure
USD970754S1 (en) 2017-03-06 2022-11-22 Isotruss Industries Llc Longitudinal beam
USD895157S1 (en) 2018-03-06 2020-09-01 IsoTruss Indsutries LLC Longitudinal beam
USD896401S1 (en) 2018-03-06 2020-09-15 Isotruss Industries Llc Beam
USD1027223S1 (en) 2018-03-06 2024-05-14 IsoTruss, Inc. Beam
GB2594037A (en) * 2020-02-13 2021-10-20 Silver Peter Helical structural framework with torsional integrity
GB2594037B (en) * 2020-02-13 2022-04-13 Silver Peter Helical structural framework with torsional integrity

Also Published As

Publication number Publication date
DE2151102A1 (de) 1972-04-20
AU3462471A (en) 1973-04-19
DE2151102C3 (de) 1981-06-04
FR2111424A5 (fr) 1972-06-02
DE2151102B2 (de) 1980-08-28
CA957817A (en) 1974-11-19
AU473326B2 (en) 1976-06-17
JPS5653062B1 (fr) 1981-12-16

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