WO2003046302A1 - Structural elongate elements - Google Patents

Structural elongate elements Download PDF

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Publication number
WO2003046302A1
WO2003046302A1 PCT/GB2002/005190 GB0205190W WO03046302A1 WO 2003046302 A1 WO2003046302 A1 WO 2003046302A1 GB 0205190 W GB0205190 W GB 0205190W WO 03046302 A1 WO03046302 A1 WO 03046302A1
Authority
WO
WIPO (PCT)
Prior art keywords
chords
elongate
bracing members
members
element according
Prior art date
Application number
PCT/GB2002/005190
Other languages
French (fr)
Inventor
Jeffrey Raymond Phillips
Original Assignee
Jeffrey Raymond Phillips
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jeffrey Raymond Phillips filed Critical Jeffrey Raymond Phillips
Priority to AU2002339182A priority Critical patent/AU2002339182A1/en
Priority to EP02777559A priority patent/EP1488055A1/en
Publication of WO2003046302A1 publication Critical patent/WO2003046302A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/11—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with non-parallel upper and lower edges, e.g. roof trusses
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped

Definitions

  • the present invention relates to structural elongate elements and in particular to lattice elements such as trusses, beams, girders or columns and also to space frames formed from such elements.
  • an elongate structural element comprises a pair of longitudinally extending chords, the chords being spaced from one another and being interconnected along their lengths by a plurality of bracing members, the bracing members being configured as closed curved members, each bracing member being secured to each of the chords.
  • each bracing member is also secured to adjacent bracing members.
  • the bracing members are of circular, elliptical or oval configuration.
  • the chords may be straight or curvilinear and may be parallel to one another or of varying separation.
  • chords and braces are preferably formed from metal bar of any suitable simple or compound section, for example "I”, “T”, angle section, circular hollow section, square hollow section, rectangular hollow section, universal beam or universal column.
  • the chords are preferably formed as a continuous length.
  • the chords may alternatively be formed from several lengths, joined together in suitable manner.
  • the bracing members may be secured to the chords and/or to one another, either directly or with spacing means located there between.
  • the bracing members may be secured to the chords, each other or spacing members in any suitable manner, for example welding, brazing, bonding, bolting or rivetting.
  • Figure 1 illustrates diagrammatically, in side elevation, a latticed girder in accordance with one embodiment of the present invention
  • Figure 2 illustrates diagrammatically a second embodiment of the present invention
  • Figure 3 illustrates diagrammatically a third embodiment of the present invention
  • Figure 4 illustrates diagrammatically a fourth embodiment of the present invention
  • Figure 5 illustrates diagrammatically a fifth embodiment of the present invention
  • Figure 6 illustrates diagrammatically a sixth embodiment of the present invention
  • Figure 7 illustrates a connecting between a bracing member and chord in accordance with one embodiment of the invention.
  • Figure 8 illustrates a connecting between a bracing member and chord in accordance with an alternative embodiment of the invention
  • a latticed girder 10 comprises a pair of straight chords 1 2,14 of for example square hollow section steel located parallel to one another, in spaced apart relationship.
  • the circular bracing members 1 6 are also secured to adjacent bracing members 1 6 in similar manner.
  • the upper chord 22 is bent at its mid-point, so that the separation between chords 22 and 24 decreases from the mid-point to the ends of the beam 20.
  • the bracing members 26 are of elliptical configuration, the axes of the bracing members 26 decreasing from that located at the mid-point of the beam 20, towards the ends of the beam 20.
  • bracing members 26 are secured to the chords 22 and 24 and to one another, in similar manner to the beam described with reference to Figure
  • the upper chord 32 is again bent at its mid-point so that the chords 32 and 34 converge towards one another meeting at the extremities of the beam 30.
  • Circular bracing members 36 are of diminishing diameter from the centre of the beam, and are secured to the chords 32 and 34 and to one another in similar manner to that described above.
  • chords 42 and 44 are curved, having the same radius of curvature, so that they are disposed parallel to one another.
  • Elliptical bracing members 46 of equal dimensions are secured between the chords 42 and 44 and to one another, as described above.
  • chords 52 and 54 are again of curved configuration but of different radius of curvature, so that the chords 52 and 54 converge towards one another at their mid-point.
  • Circular bracing members 56 are secured between the chords 52 and 54 and to one another in similar manner to that described above.
  • the beam 60 comprises an upper chord 62 of curved configuration and a lower chord 64 having two straight portions angled to one another, the lower chord 64 engaging the upper chord 62 and being secured thereto at its mid-point and diverging away from the upper chord 62 towards the ends of the beam 60.
  • Circular bracing members 66 of varying diameter are located between each section of the lower chord 64 and the upper chord 62 and are secured to the chords and each other, in similar manner to that described above.
  • the bracing members 16 of square hollow section are secured directly to the chords 12,14 also of square hollow section, by means of fillet or butt welds 70.
  • the bracing members 1 6 and chords may be brazed, bonded, bolted or rivetted together.
  • the bracing members 16 may also be secured to one another in similar manner.
  • a spacing member 80 of square hollow section is interposed between to bracing member 16 and chord 12,14.
  • the spacing member 80 being secured to the chord 1 2,1 and the bracing member 16 by full profile fillet or butt welds 82, or by brazing, bonding, bolting or rivetting.
  • the bracing member may be bolted directly to the chord with the spacing member 80 interposed there between.
  • the bracing members 16 may be interconnected with bracing members interposed there between, in similar manner to that described above.
  • the spacing members 80 may be of any suitable section.
  • bracing members 1 6 may be used to secure the bracing members 1 6 to chords 1 2, 14 and to each other, in a single structural elongate element or space frame.
  • chords and bracing members may be used in accordance with the present invention, to form an elongate structural element.
  • a series of beams formed in accordance with the present invention may be arranged in intersecting relationship and interconnected to form a space frame.
  • one set of beams will be arranged parallel to one another in spaced apart relationship, a second set of beams being arranged in parallel spaced apart relationship, the second set of beams being angled with respect to the first set, for example at right angles, so that the two sets of beams intersect, the chords of the beams being secured together at the points of intersection, in suitable manner.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

An elongate structural element has a pair of longitudinally extending chords, the chords being spaced from one another and being inter-connected along their lengths by a plurality of bracing members, the bracing members being configured as close curve members, each bracing member being secured to each of the chords.

Description

STRUCTURAL ELONGATE ELEMENTS
The present invention relates to structural elongate elements and in particular to lattice elements such as trusses, beams, girders or columns and also to space frames formed from such elements.
According to one aspect of the present invention, an elongate structural element comprises a pair of longitudinally extending chords, the chords being spaced from one another and being interconnected along their lengths by a plurality of bracing members, the bracing members being configured as closed curved members, each bracing member being secured to each of the chords.
According to a preferred embodiment of the invention, each bracing member is also secured to adjacent bracing members.
Preferably, the bracing members are of circular, elliptical or oval configuration. The chords may be straight or curvilinear and may be parallel to one another or of varying separation.
The chords and braces are preferably formed from metal bar of any suitable simple or compound section, for example "I", "T", angle section, circular hollow section, square hollow section, rectangular hollow section, universal beam or universal column. The chords are preferably formed as a continuous length. The chords may alternatively be formed from several lengths, joined together in suitable manner.
The bracing members may be secured to the chords and/or to one another, either directly or with spacing means located there between. The bracing members may be secured to the chords, each other or spacing members in any suitable manner, for example welding, brazing, bonding, bolting or rivetting.
The invention is now described, by way of example only, with reference to the accompanying drawings, in which:-
Figure 1 illustrates diagrammatically, in side elevation, a latticed girder in accordance with one embodiment of the present invention;
Figure 2 illustrates diagrammatically a second embodiment of the present invention;
Figure 3 illustrates diagrammatically a third embodiment of the present invention;
Figure 4 illustrates diagrammatically a fourth embodiment of the present invention;
Figure 5 illustrates diagrammatically a fifth embodiment of the present invention;
Figure 6 illustrates diagrammatically a sixth embodiment of the present invention;
Figure 7 illustrates a connecting between a bracing member and chord in accordance with one embodiment of the invention; and
Figure 8 illustrates a connecting between a bracing member and chord in accordance with an alternative embodiment of the invention
As illustrated in Figure 1 , a latticed girder 10 comprises a pair of straight chords 1 2,14 of for example square hollow section steel located parallel to one another, in spaced apart relationship. A series of circular bracing members 1 6 of equal diameter formed, for example, from square hollow section of smaller dimensions than the chords 1 2, 1 4, are secured between the chords 1 2,14 in suitable manner, for example by welding or bolting. The circular bracing members 1 6 are also secured to adjacent bracing members 1 6 in similar manner.
In the embodiment illustrated in Figure 2, the upper chord 22 is bent at its mid-point, so that the separation between chords 22 and 24 decreases from the mid-point to the ends of the beam 20. The bracing members 26 are of elliptical configuration, the axes of the bracing members 26 decreasing from that located at the mid-point of the beam 20, towards the ends of the beam 20.
The bracing members 26 are secured to the chords 22 and 24 and to one another, in similar manner to the beam described with reference to Figure
1 .
In the embodiment illustrated in Figure 3, the upper chord 32 is again bent at its mid-point so that the chords 32 and 34 converge towards one another meeting at the extremities of the beam 30. Circular bracing members 36 are of diminishing diameter from the centre of the beam, and are secured to the chords 32 and 34 and to one another in similar manner to that described above.
In the beam 40 illustrated in Figure 4, the chords 42 and 44 are curved, having the same radius of curvature, so that they are disposed parallel to one another. Elliptical bracing members 46 of equal dimensions, are secured between the chords 42 and 44 and to one another, as described above. In the beam illustrated in Figure 5, the chords 52 and 54 are again of curved configuration but of different radius of curvature, so that the chords 52 and 54 converge towards one another at their mid-point. Circular bracing members 56 are secured between the chords 52 and 54 and to one another in similar manner to that described above.
In the embodiment illustrated in Figure 6, the beam 60 comprises an upper chord 62 of curved configuration and a lower chord 64 having two straight portions angled to one another, the lower chord 64 engaging the upper chord 62 and being secured thereto at its mid-point and diverging away from the upper chord 62 towards the ends of the beam 60. Circular bracing members 66 of varying diameter are located between each section of the lower chord 64 and the upper chord 62 and are secured to the chords and each other, in similar manner to that described above.
As illustrated in figure 7, in for example the latticed girder 10 illustrated in figure 1 , the bracing members 16 of square hollow section, are secured directly to the chords 12,14 also of square hollow section, by means of fillet or butt welds 70. Alternatively the bracing members 1 6 and chords may be brazed, bonded, bolted or rivetted together. The bracing members 16 may also be secured to one another in similar manner.
In the alternative embodiment illustrated in figure 8, a spacing member 80 of square hollow section, is interposed between to bracing member 16 and chord 12,14. The spacing member 80 being secured to the chord 1 2,1 and the bracing member 16 by full profile fillet or butt welds 82, or by brazing, bonding, bolting or rivetting. Alternatively the bracing member may be bolted directly to the chord with the spacing member 80 interposed there between. The bracing members 16 may be interconnected with bracing members interposed there between, in similar manner to that described above. The spacing members 80 may be of any suitable section.
It will be appreciated that a combination of direct and spaced connections may be used to secure the bracing members 1 6 to chords 1 2, 14 and to each other, in a single structural elongate element or space frame.
Various modifications may be made without departing from the invention and the above embodiments are only examples. Any combination of chords and bracing members, may be used in accordance with the present invention, to form an elongate structural element.
Furthermore, a series of beams formed in accordance with the present invention may be arranged in intersecting relationship and interconnected to form a space frame. Preferably in such an arrangement one set of beams will be arranged parallel to one another in spaced apart relationship, a second set of beams being arranged in parallel spaced apart relationship, the second set of beams being angled with respect to the first set, for example at right angles, so that the two sets of beams intersect, the chords of the beams being secured together at the points of intersection, in suitable manner.

Claims

1 . An elongate structural element comprising a pair of longitudinally extending chords, the chords being spaced from one another and being inter-connected along their lengths by a plurality of bracing members, the bracing members being configured as close curve members, each bracing member being secured to each of the chords.
2. An elongate structural element according to claim 1 in which adjacent bracing members are secured to one another.
3. An elongate structural element according to claim 1 or 2 in which spacing members are interposed between the bracing members and the chords and/or between adjacent bracing members.
4. An elongate structural element according to any one of claims 1 to 3 in which the bracing members are of circular, elliptical or oval configuration.
5. A structural elongate element according to any one of claims 1 to 4 in which the chords are of straight or curvilinear configuration.
6. A structural element according to claim 5 in which the chords are parallel to one another or of varying separation.
7. A structural element according to any one of the preceding claims in which the chords, bracing members and/or spacing members are formed from metal bar of; "I", "1", angle section, circular hollow section, square hollow section, rectangular hollow section, universal beam and/or universal column configuration.
8. A structural elongate element according to any one of the preceding claims in which the bracing members are secured to the chords and/or one another and/or the spacing members, by means of welding, brazing, bonding, bolting and/or rivetting.
9. A structural elongate element substantially as described herein with reference to and as shown in Figures 1 to 8 of the accompanying drawings.
10. A space frame formed from a series of intersecting elongate structural elements, the elongate structural elements being as claimed in any one of claims 1 to 9, the chords of the elongate elements being secured together at their points of intersection.
PCT/GB2002/005190 2001-11-21 2002-11-19 Structural elongate elements WO2003046302A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002339182A AU2002339182A1 (en) 2001-11-21 2002-11-19 Structural elongate elements
EP02777559A EP1488055A1 (en) 2001-11-21 2002-11-19 Structural elongate elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0127818A GB0127818D0 (en) 2001-11-21 2001-11-21 Structural elongate elements
GB0127818.3 2001-11-21

Publications (1)

Publication Number Publication Date
WO2003046302A1 true WO2003046302A1 (en) 2003-06-05

Family

ID=9926125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/005190 WO2003046302A1 (en) 2001-11-21 2002-11-19 Structural elongate elements

Country Status (4)

Country Link
EP (1) EP1488055A1 (en)
AU (1) AU2002339182A1 (en)
GB (2) GB0127818D0 (en)
WO (1) WO2003046302A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH245601A (en) * 1945-03-15 1946-11-30 Zuern Erwin Iron element that can be used as a support or reinforcement for concrete beams.
GB638689A (en) * 1948-01-13 1950-06-14 Nils Birger Henrik Sundman Improvements in or relating to girders and like constructions
WO1992011423A1 (en) * 1990-12-18 1992-07-09 Centralny Osrodek Badawczo-Projektowy Konstrukcji Metalowych 'mostostal' S.A. System of space structures in particular grids

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1015778A (en) * 1962-10-26 1966-01-05 De Clippelier Ets Building elements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH245601A (en) * 1945-03-15 1946-11-30 Zuern Erwin Iron element that can be used as a support or reinforcement for concrete beams.
GB638689A (en) * 1948-01-13 1950-06-14 Nils Birger Henrik Sundman Improvements in or relating to girders and like constructions
WO1992011423A1 (en) * 1990-12-18 1992-07-09 Centralny Osrodek Badawczo-Projektowy Konstrukcji Metalowych 'mostostal' S.A. System of space structures in particular grids

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1488055A1 *

Also Published As

Publication number Publication date
GB0127818D0 (en) 2002-01-09
AU2002339182A1 (en) 2003-06-10
EP1488055A1 (en) 2004-12-22
GB2382359A (en) 2003-05-28
GB0226935D0 (en) 2002-12-24
GB2382359B (en) 2004-06-30

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