AU602119B2 - Structural assemblies - Google Patents

Structural assemblies Download PDF

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Publication number
AU602119B2
AU602119B2 AU45949/89A AU4594989A AU602119B2 AU 602119 B2 AU602119 B2 AU 602119B2 AU 45949/89 A AU45949/89 A AU 45949/89A AU 4594989 A AU4594989 A AU 4594989A AU 602119 B2 AU602119 B2 AU 602119B2
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AU
Australia
Prior art keywords
joist
section
members
tab
web
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.)
Ceased
Application number
AU45949/89A
Other versions
AU4594989A (en
Inventor
Mark Daniel Beazley
Gordon Stuart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
El Barador Holdings Pty Ltd
Original Assignee
El Barador Holdings Pty Ltd
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
Priority claimed from AU20650/88A external-priority patent/AU588510B2/en
Application filed by El Barador Holdings Pty Ltd filed Critical El Barador Holdings Pty Ltd
Priority to AU45949/89A priority Critical patent/AU602119B2/en
Publication of AU4594989A publication Critical patent/AU4594989A/en
Application granted granted Critical
Publication of AU602119B2 publication Critical patent/AU602119B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
    • E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/06—Constructions of roof intersections or hipped ends
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/06—Constructions of roof intersections or hipped ends
    • E04B7/063—Hipped ends
    • 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
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • 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
    • E04C2003/0408—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
    • E04C2003/0421—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 comprising one single unitary part
    • 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
    • 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
    • E04C2003/0473—U- or C-shaped
    • 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
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Landscapes

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

Description

L...2 COMMONWEALTH OF AUSTRALIA Patents Act 1952
O
Name of Applicant: Address of Applicant: Actual Inventors: Address for Service: EL BARADOR HOLDINGS PTY LTD 30 Palings Court, Nerang, Queensland, 4211, Australia Mark Daniel BEAZLEY Gordon STUART GRANT ADAMS COMPANY Patent and Trade Mark Attorneys 144 Edward Street BRISBANE QUEENSLAND 4000
AUSTRALIA
COMPLETE SPECIFICATION FOR THE INVENTION ENTITLED: "STRUCTURAL ASSEMBLIES" The following statement is a full description of the invention including the best method of performing it known to the applicant.
LL-
THIS INVENTION relates to improvements in structural assemblies.
It is well known that an I-section beam has the structural advantage that any loads applied to it are directed through the neutral axis of the beam, reducing any twisting moments on the beam. At present it is not possible to roll-form I-section metal beams and so C- and Z-section beams have been used as compromises. To ensure that they can withstand any twisting moments on the beams, the C- and Z-section a beams have been produced from thicker gauge steel than would otherwise be required by I-section beams to support the applied loads.
It is an object of the present invention to provide a frame assembly which incorporates an I-section beam which is assembled from a pair of C-section beams.
It is a preferred object to provide such an assembly where laterally extending structural members can be easily fixed to the I-beam.
It is a further preferred object to provide such a frame assembly which has a wide range of potential applications e.g. in the building industry.
Other preferred objects of the present invention will become apparent from the following description.
In a broad aspect the present invention resides in a frame assembly including: a structural I-beam, the I-beam being assembled from a pair of substantially identical Csection beams arranged back-to-back wherein: each C-section beam has a web member interconnecting a pair of substantially parallel flange members directed to one side of the web member; a plurality of tab members formed out of the web member, each tab member has a leg extending substantially perpendicular to the web member and a toe substantially parallel to, but spaced from, the web member, and a slot or hole formed in the web member adjacent each tab member; the respective legs of the tab members and slots or holes in the web members being aligned, at least one of the legs of the tab members of one of the C-section beams entering the corresponding aligned slot or hole of the other C-section beam, the legs of the tab member being deformable to engage the web member of the other C-section beam to secure the C-section beams together; at least one lateral beam or joist connected thereto, each lateral beam or joist having a web between a pair of side flanges, the side flanges of the lateral beam or joist being received between a pair of the flange members of the I-beam; and fastener means engaged in aligned holes in the side flanges of the lateral beam or joist and the side flange members of the I-beam to connect the lateral beam or joist to the I-beam.
Preferably the fasteners are bolts, where the bolts passing through the lower of the side flanges and the flange members secure the lateral beam or joist and the I-beam to a stump or pier; and the bolts passing through the upper of the side flanges and the side flange members secure the lateral beam or joist and the I-beam to a stud or fixing bracket for a building wall structure.
Preferably the web of the lateral beam or joist has a slot adjacent the end received in the I-beam ane one of the tab members on the I-beam is engaged in the slot to assist in the connection of the lateral beam or joist to the I-beam.
Preferably tab members at each end of each respective C-section beams enter the respective slots of the other C-section beam.
Preferably aligned pairs of holes are provided along the length of the flanges on the assembled beam, preferably at modular spacings, to enable two or more of the assembled I-beams to be secured together and/or to supports on building structures.
The frame assembly may be used in floor and ceiling assemblies and portal frames in building structures and in a wide range of other applications.
To enable the invention to be fully understood, preferred embodiments will now be described with reference to the accompanying drawings, in which: FIG. 1 is a perspective view of an I-beam before assembly; FIG. 2 is a perspective view of a 3-way beam connection; FIGS. 3 to 6 are plan views of a beam corner, beam joint, 3-way beam connection and a 4-way beam connection respectively; and FIG. 7 is a sectional side view of a portion of a building structure employing the assembled beam.
Referring to FIGS. 1 and 2, the assembled Ibeam comprises a pair of roll-formed C-section metal beams 11, 12 arranged with their respective webs 13 back-to-back and their upper and lower side flanges 14, directed outwardly.
A plurality of tabs 16 are punched or otherwise formed out of the webs 13 of the C-section beams, only one tab per beam being shown. Each tab 16 has a leg 16A extending substantially perpendicular to the web 13 and a toe 16B substantially parallel to, but spaced from, the web 13. A respective slot 17 for each tab 16 remains in the web 13. As shown, the tabs 16 of the beams 11, 12 are oppositely directed to each other so that the tabs 16 of beam 11 enter the corresponding aligned slots 17 of beam 12 and vice versa.
When the beams 11, 12 are brought together, with the tabs 16 through the aligned slots 17, the tabs 16 of each beam are deformed, e.g. with a hammer, to cause the legs 16A and toes 16B to engage the web of the other beam to so secure the C-section beams 11, 12 together with a single assembled I-section beam suitable for structural purposes.
Holes 18, 19 of different diameters, are provided in the side flanges 14, 15 respectively adjacent their ends, and in pairs at modular lengths along the flanges, to enable two or more of the Isection beams 10 to be secured together.
As shown in FIG. 2, the holes 18, 19 are spaced so that when two or more I-beams 10 are connected together, the ends of their webs 13 are slightly spaced, with their side flanges 14, 15 overlapped.
FIGS 3 to 6 show how the assembled I-beams may be connected together at a joint e.g. over a supporting stump or pier, where bolts passing through the holes 18, 19 connect the beams 10 to structural fixing brackets or stump head plates (provided with aligned holes) not shown.
FIG. 7 illustrates how the I-beams 10 may be used as part of a floor structure for a building, the beams also enabling a wall structure to be attached to the supporting stumps or piers.
The floor structure 20 is supported on a plurality of building stumps 21. Each stump 21 has a rectangular cap 22 with four holes to receive bolts 23.
30 The floor structure 20 has a peripheral frame and crossmembers formed of the assembled I-beams interconnected by joists 24. Each joist 24 is of modified Z-section roll-formed steel, with top and bottom flanges 25 connected by a web 26.
A slot 27 is formed centrally in the web 26 adjacent each end and is engaged by one of the tabs 16 of the adjacent I-beam 10 to secure joist 24 to the Ibeam 10 (the side flanges 25 of the joist being closely interfitted with the side flanges 14, 15 of the I-beam As shown, the hole 27 is spaced from the end of the joist 24 a distance substantially equal to the height of the leg 16A of the tab 16 and the toe 16B is received in the hole 27 and then deformed with a hammer) to form a hook to secure the joist 24 and I-beam together.
Bolts 23 through aligned holes (not shown) in the lower side flanges 25 of the joist 24, the I-beam holes 19) and the cap 22 of the stump 21 enable the floor assembly 20 to be secured to the stump 21. A floor panel 28 is laid over the floor assembly 20 and is clamped to the I-beams 10 by bolts 29 passing through the holes 18 in the I-beams, the floor panel 28 and angled fixing brackets 30 for wall panels 31. The floor panel 28 is fixed to the joists 24 by suitable screws, -studs or adhesives.
A cover sheeting 32 is provided around the floor structure 20, to enclose the I-beam 10 of the peripheral frame, and weather-proofing is provided between the wall panels 31 and the cover sheeting 32 by suitable flashing 33.
If, at any time, the building is to be extended, the cover sheeting 32 and flashing 33 may be removed and joists 24 may be connected to the I-beams i.e. to extend to the right in FIG. 7. (The new joist 24 would be connected to the I-beam 10 by the free tabs 16 and the bolts 23, 29.) As discussed above, the assembled I-beams may be used in a wide range of alternative applications e.g.
intermdiate floor/ceiling structures, ceiling or roof j i structures and portal frames. The beams may also be used wherever relatively light-weight I-beams can be substituted for a heavier C- or Z-section beams of the same load capacity. The range of potential applications is limited only by the skilled addressee's imagination.
Various changes and modifications may be made to the embodiments described without departing from the scope of the present invention defined in the appended claims.
e*

Claims (4)

1. A frame assembly including: a structural I-beam, the I-beam being assembled from a pair of substantially identical C- section beams arranqed back-to-back wherein: each C-section beam has a web member interconnecting a pair of substantially parallel flange members directed to one side of the web member; a plurality of tab members formed out of the web member, each tab member has a leg extending substantially perpendicular to the web member and a toe substantially parallel to, but spaced from, the web member, and a slot or hole formed in the web member adjacent each tab member; the respective legs of the tab members and slots or holes in the web members being aligned, at least one of the legs of the tab members of one of the C-section beams entering the corresponding aligned slot or hole of the other C-section beam, the legs of the tab member being deformable to engage the web member of the other C-section beam to secure the C-section beams together; at least one lateral beam or joist connected thereto, each lateral beam or joist having a web between a pair of side flanges of the lateral beam or joist being received between a pair of the flange members of the I-beam; and fastener means engaged in aligned holes in the side flanges of the lateral beam or joist and the flange members of the I-beam to connect the lateral beam or joist to the I-beam.
2. A frame assembly according to Claim 1 wherein: the fasteners are bolts, where the bolts passing through the lower of the side flanges and the flange members secure the latral beam or joist and the I-beam to a stump or pier, and the bolts passing through 8 the upper of the side flanges and the flange members secure the lateral beam or joist and the I-beam to a stud or fixing bracket for a building wall structure.
3. A frame assembly according to Claim 1 or Claim 2 wherein: tab members are provided adjacent each end of the respective C-section beam, and their legs enter the respective slots of the other C-section beam and are deformed to engage and secure the respective web members together.
4. A frame assembly according to any one of Claims 1 to 3 wherein: aligned pairs of holes are provided at modular spacings along the side flanges on the I-beam. DATED this twenty-seventh day of June 1990. EL BARADOR HOLDINGS PTY LTD By their Patent Attorneys GRANT ADAMS COMPANY o. *9
AU45949/89A 1987-08-13 1989-12-06 Structural assemblies Ceased AU602119B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45949/89A AU602119B2 (en) 1987-08-13 1989-12-06 Structural assemblies

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPI3703 1987-08-13
AU20650/88A AU588510B2 (en) 1987-08-13 1988-08-12 Structural assemblies
AU45949/89A AU602119B2 (en) 1987-08-13 1989-12-06 Structural assemblies

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU20650/88A Division AU588510B2 (en) 1987-08-13 1988-08-12 Structural assemblies

Publications (2)

Publication Number Publication Date
AU4594989A AU4594989A (en) 1990-04-05
AU602119B2 true AU602119B2 (en) 1990-09-27

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Application Number Title Priority Date Filing Date
AU45949/89A Ceased AU602119B2 (en) 1987-08-13 1989-12-06 Structural assemblies

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AU (1) AU602119B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016004474A1 (en) * 2014-07-07 2016-01-14 Rockhouse International Pty Ltd Frame systems for building structures

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB561506A (en) * 1942-08-18 1944-05-23 Mills Scaffold Co Ltd Improvements in or relating to metal constructional members
DE3540027A1 (en) * 1984-11-15 1986-05-15 Nord-Plan Stålreoler A/S, Vipperød THICK PLATE CONSTRUCTION

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB561506A (en) * 1942-08-18 1944-05-23 Mills Scaffold Co Ltd Improvements in or relating to metal constructional members
DE3540027A1 (en) * 1984-11-15 1986-05-15 Nord-Plan Stålreoler A/S, Vipperød THICK PLATE CONSTRUCTION

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016004474A1 (en) * 2014-07-07 2016-01-14 Rockhouse International Pty Ltd Frame systems for building structures
US10151100B2 (en) 2014-07-07 2018-12-11 Rockhouse International Pty Ltd Frame systems for building structures
AU2015286222B2 (en) * 2014-07-07 2019-08-29 Rockhouse International Pty Ltd Frame systems for building structures
US10895072B2 (en) 2014-07-07 2021-01-19 Rockhouse International Pty Ltd Frame systems for building structures

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Publication number Publication date
AU4594989A (en) 1990-04-05

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