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GB2163193A - Flush mounting dwangs - Google Patents

Flush mounting dwangs Download PDF

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Publication number
GB2163193A
GB2163193A GB08518295A GB8518295A GB2163193A GB 2163193 A GB2163193 A GB 2163193A GB 08518295 A GB08518295 A GB 08518295A GB 8518295 A GB8518295 A GB 8518295A GB 2163193 A GB2163193 A GB 2163193A
Authority
GB
United Kingdom
Prior art keywords
dwang
section
limb
transverse cross
recessed portion
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.)
Withdrawn
Application number
GB08518295A
Other versions
GB8518295D0 (en
Inventor
William Graham Hitchins
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8518295D0 publication Critical patent/GB8518295D0/en
Publication of GB2163193A publication Critical patent/GB2163193A/en
Withdrawn legal-status Critical Current

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
    • E04C3/28—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of materials not covered by groups E04C3/04 - E04C3/20
    • 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
    • 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
    • E04C2003/026—Braces
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)

Abstract

A dwang, being an elongated structural building component fabricated from a rigid material, a transverse cross-section of which has at least one limb element 2 or 3 and at least one web element 1, said limb and web elements being disposed normal to each other; and one or more of said at least one limb and web elements having formed therein a recessed portion 4 or 5 which extends over the length of the said dwang. <IMAGE>

Description

SPECIFICATION Flush mounting dwangs This invention relates to structural building components, and more particularly to those components sometimes referred to as "dwangs".
The term "dwang" apparently originated in Scotland in the mid-nineteenth century, being used to denote the "short pieces of timber employed in strutting a floor" (Shorter Oxford English Dictionary). It is known that these old wooden dwangs were affixed between adjacent floor joists to produce a lattice-like structure to which the floorboards could be nailed.
Since the structural building components according to the present invention serve a largely similar purpose, throughout this specification they will be termed "dwangs" also.
These inventive dwangs are suited particularly, but- not exclusively, to use with rolled steel joists (known as "RSJ's") in the construction of buildings such as those which incorporate two-part "snap-together" structural components being, for example, vertical studs; there again, these dwangs may also have application in the construction of ceilings as well as floors.
Therefore, in accordance with the present invention there is provided a dwang, being an elongated structural building component fabricated from a rigid material, a transverse crosssection of which has at least one limb element and at least one web element, said limb and web elements being disposed normal to each other; and one or more of said at least one limb and web elements having formed therein a recessed portion which extends over the length of the dwang.
Such a dwang may have a transverse crosssection which is L-shaped, the lower web element of the shape having the recessed portion formed therein, or it may have a transverse cross-section which is T-shaped, in which case the upper web element of the "T" has the recessed portion formed therein.
Alternatively, the dwang may have an Hshaped cross-section (that is to say, an "H" on its side:- "I") with the recessed portions formed in the two limb elements of the H.
There again, the dwang of the present invention may equally well have a U-shaped cross-section, the web element of this flatbottomed "U" being provided with the recessed portion; in another embodiment the "U" has two recessed portions, one in each limb.
The inventive dwangs are fabricated from a suitable rigid material such as a metal, extruded or otherwise, or plastic, or fibreglassreinforced resin or the like.
in order that the reader may gain a better understanding of the present invention, hereinafter will be described certain embodiments thereof, by way of example only, and with reference to the accompanying drawings in which Figures 1, 2 and 3 show, fragmentarily and isometrically, portions of dwangs of different transverse cross-sections; Figure 4 illustrates how a dwang according to the present invention may be employed in the construction of a ceiling; and Figure 5 similarly shows how such a dwang may be utilised in floor construction.
Upon referring to the drawings it will be seen that Fig. 1 represents a dwang the transverse cross-section of which is substantially H-shaped. The adjectival "H-shaped" is employed to be in accord with the way in which RSJ's of this cross-section are described in the construction industry, even though the "H" may be lying on its side. In this dwang, the web element 1 is planar, while each limb element 2 and 3 is provided with a recessed portion formed therein, referenced 4, 5 respectively.
Fig. 2 shows an inventive dwang of flatbottomed U-shaped transverse cross-section, the "U" being shown lying on its side here again. Web element 6 is the planar element in this embodiment, recessed portions 7 and 8 being formed respectively in the two limb elements 9, 10.
Fig. 3 represents a dwang the transverse cross-section of which is substantially Tshaped. The upper web element 11 of the T is formed with a recessed portion 1 2 therein, while limb element 1 3 is planar; needless to say, this dwang may also be used "upside down".
Fig. 4 illustrates how such a dwang is employed in the construction of a ceiling; excepting for the inventive dwang, which is shown in cross-hatched transverse cross-section, all other building components are shown only in outline, in the interests of clarity. The particular dwang shown is yet a further embodiment, being of flat-bottomed U-shaped cross-section but having its limbs 14 and 1 5 planar while its web 1 6 has formed therein a recessed portion 1 7. Such dwangs are particularly suited, but not exclusively so, for use in building constructions incorporating twopart, "snap-together" vertical studs, generally referenced 1 8. In such a structure, a roofframe may be bolted to studs 1 8 by bolts such as 19.
Fig. 5 illustrates how an inventive dwang, generally referenced 20, may be used in the construction of a floor, the particular dwang shown being of H-shaped transverse crosssection, as that already described with reference to Fig. 1. In this drawing, with the exception of the portrayed dwang, which is cross-hatched, all the other building components are shown only in outine, in the interests of clarity.
Here again, the structure incorporates two part, "snap-together" vertical studs, generally referenced 21. In such a building construction, the frame of the structure may be bolted down onto a cast concrete foundation or footing 22 by means of bolts 23, these bolts being partly embedded in the foundation or footing 22 during casting of the latter. The lower, embedded end of each bolt 23 is formed into a hook 24 adapted to engage with a cast-in-situ reinforcing rod 25.
While the above description is generally in terms of bolted-together structures employing two part or three part, "snap-together" components, it should be understood that dwangs made in accordance with the present invention are equally applicable to other, more conventional building constructions, wherever and whenever dwangs are required; moreover, the inventive dwangs may also take the place of purlins in roof-frame construction. There again, the four cross-sectional transverse shapes illustrated in the drawings should by no means be construed as being limiting; for example, dwangs having rectangular or shaped transverse cross-sections are also envisaged. A dwang- having a rectangular transverse cross-section will have recessed portions extending over the lengths of two opposed sides.
From the foregoing, the reader will readily appreciate that dwangs, being elongated structural building components made according to the present invention, will provide the public with a new or much-improved article of great use in the building industry or, at the very least, offer to it a useful and attractive choice.

Claims (9)

1. A dwang, being an elongated structural building component fabricated from a rigid material, a transverse cross-section of which has at least one limb element and at least one web element, said limb and web elements being disposed normal to each other; and one or more of said at least one limb and web elements having formed therein a recessed portion which extends over the length of the said dwang.
2. The dwang as claimed in Claim 1, wherein said transverse cross-section is Lshaped, the lower web element of said shape having a said recessed portion formed therein.
3. The dwang as claimed in Claim 1, wherein said transverse cross-section is Tshaped, the upper web element of said shape having a said recessed portion formed therein.
4. The dwang as claimed in Claim 1, wherein said transverse cross-section is Hshaped, the two limb elements of said shape each having a said recessed portion formed therein.
5. The dwang as claimed in Claim 1, wherein said transverse cross-section is Ushaped, the two limb elements of said shape each having a said recessed portion formed therein.
6. The dwang as claimed in Claim 1, wherein said transverse cross-section is Ushaped, the web element of said shape having a said recessed portion formed therein.
7. The dwang as claimed in Claim 1, but wherein the transverse cross-section thereof is rectangular, two opposed sides of which having formed therein said recessed portions.
8. The dwang as claimed in any one of the preceding Claims, wherein said rigid material is selected from the group consisting of metals, plastics, and firbreglass-reinforced resins.
9. A dwang, being an elongated structural building component, substantially as hereinbefore described with reference to the accompanying drawings.
GB08518295A 1984-07-23 1985-07-19 Flush mounting dwangs Withdrawn GB2163193A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPG616584 1984-07-23

Publications (2)

Publication Number Publication Date
GB8518295D0 GB8518295D0 (en) 1985-08-29
GB2163193A true GB2163193A (en) 1986-02-19

Family

ID=3770679

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08518295A Withdrawn GB2163193A (en) 1984-07-23 1985-07-19 Flush mounting dwangs

Country Status (1)

Country Link
GB (1) GB2163193A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189272A (en) * 1986-04-15 1987-10-21 Dale Beam with stepped flange for monorail
GB2304744A (en) * 1995-08-31 1997-03-26 Michael Patrick Byfield Flanged structural members
US11420472B2 (en) * 2017-04-05 2022-08-23 Nippon Steel Corporation Front axle beam and production method thereof

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB435630A (en) * 1933-06-08 1935-09-25 Ver Stahlwerke Ag Improvements in girders
GB449668A (en) * 1936-01-13 1936-07-01 Ferdinand Richards Improvements in rolled metal props, struts and like shoring members
GB478442A (en) * 1935-10-01 1938-01-19 Nordiska Armaturfab Ab Improvements in or relating to girders, profile irons and the like
GB493688A (en) * 1938-04-19 1938-10-12 Albert Victor Staniforth Improvements in or relating to steel floors or platforms
GB570503A (en) * 1943-08-25 1945-07-10 Constructors Ltd Improvements in or relating to perforated metal bar members of angle section
GB608101A (en) * 1946-02-15 1948-09-09 Alfred Marsden Alcock Improvements relating to vehicle bodywork
GB691200A (en) * 1950-08-02 1953-05-06 Bert Inkley Means for attaching wall and ceiling lining boards, panels, sheets and slabs to section rails and structural members
GB695591A (en) * 1951-03-27 1953-08-12 Jacob Merle Gwynne Nailable metal structural members
GB716659A (en) * 1951-05-18 1954-10-13 Henri Maurice Schnadt Improvements in or relating to flange sections for welded plate girders
GB742629A (en) * 1952-11-10 1955-12-30 Moderner Baubedarf Gmbh Improvements in or relating to light ceiling girders
GB1271525A (en) * 1969-05-12 1972-04-19 Guy Guele A beam for constructional use in buildings
GB1462924A (en) * 1974-01-18 1977-01-26 Aluma Building Syst Inc Concrete forming structure
US4034957A (en) * 1976-02-17 1977-07-12 Symons Corporation Concrete formwork including I-beam support
GB1487244A (en) * 1973-10-12 1977-09-28 Vallourec Purlins or similar structural members and constructions incorporating such purlins
GB2036150A (en) * 1978-11-22 1980-06-25 Layher E I-sectioned light metal girder
US4318252A (en) * 1979-08-31 1982-03-09 Janson Richard W Joist assembly for stage equipment support system

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB435630A (en) * 1933-06-08 1935-09-25 Ver Stahlwerke Ag Improvements in girders
GB478442A (en) * 1935-10-01 1938-01-19 Nordiska Armaturfab Ab Improvements in or relating to girders, profile irons and the like
GB449668A (en) * 1936-01-13 1936-07-01 Ferdinand Richards Improvements in rolled metal props, struts and like shoring members
GB493688A (en) * 1938-04-19 1938-10-12 Albert Victor Staniforth Improvements in or relating to steel floors or platforms
GB570503A (en) * 1943-08-25 1945-07-10 Constructors Ltd Improvements in or relating to perforated metal bar members of angle section
GB608101A (en) * 1946-02-15 1948-09-09 Alfred Marsden Alcock Improvements relating to vehicle bodywork
GB691200A (en) * 1950-08-02 1953-05-06 Bert Inkley Means for attaching wall and ceiling lining boards, panels, sheets and slabs to section rails and structural members
GB695591A (en) * 1951-03-27 1953-08-12 Jacob Merle Gwynne Nailable metal structural members
GB716659A (en) * 1951-05-18 1954-10-13 Henri Maurice Schnadt Improvements in or relating to flange sections for welded plate girders
GB742629A (en) * 1952-11-10 1955-12-30 Moderner Baubedarf Gmbh Improvements in or relating to light ceiling girders
GB1271525A (en) * 1969-05-12 1972-04-19 Guy Guele A beam for constructional use in buildings
GB1487244A (en) * 1973-10-12 1977-09-28 Vallourec Purlins or similar structural members and constructions incorporating such purlins
GB1462924A (en) * 1974-01-18 1977-01-26 Aluma Building Syst Inc Concrete forming structure
US4034957A (en) * 1976-02-17 1977-07-12 Symons Corporation Concrete formwork including I-beam support
GB2036150A (en) * 1978-11-22 1980-06-25 Layher E I-sectioned light metal girder
US4318252A (en) * 1979-08-31 1982-03-09 Janson Richard W Joist assembly for stage equipment support system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189272A (en) * 1986-04-15 1987-10-21 Dale Beam with stepped flange for monorail
GB2189272B (en) * 1986-04-15 1990-12-12 Dale Improvements in or relating to beams
GB2304744A (en) * 1995-08-31 1997-03-26 Michael Patrick Byfield Flanged structural members
US11420472B2 (en) * 2017-04-05 2022-08-23 Nippon Steel Corporation Front axle beam and production method thereof

Also Published As

Publication number Publication date
GB8518295D0 (en) 1985-08-29

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)