EP0026397A2 - Stütze für Tragbalken zur Verwendung im Bau und Baustruktur mit einer solchen Stütze - Google Patents

Stütze für Tragbalken zur Verwendung im Bau und Baustruktur mit einer solchen Stütze Download PDF

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Publication number
EP0026397A2
EP0026397A2 EP80105565A EP80105565A EP0026397A2 EP 0026397 A2 EP0026397 A2 EP 0026397A2 EP 80105565 A EP80105565 A EP 80105565A EP 80105565 A EP80105565 A EP 80105565A EP 0026397 A2 EP0026397 A2 EP 0026397A2
Authority
EP
European Patent Office
Prior art keywords
joist
flange
support
supporting structure
support according
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.)
Granted
Application number
EP80105565A
Other languages
English (en)
French (fr)
Other versions
EP0026397B1 (de
EP0026397A3 (en
Inventor
Harold John Andrews
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.)
PRESS-BAT HOLDINGS Ltd
Original Assignee
PRESS-BAT HOLDINGS 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
Application filed by PRESS-BAT HOLDINGS Ltd filed Critical PRESS-BAT HOLDINGS Ltd
Publication of EP0026397A2 publication Critical patent/EP0026397A2/de
Publication of EP0026397A3 publication Critical patent/EP0026397A3/en
Application granted granted Critical
Publication of EP0026397B1 publication Critical patent/EP0026397B1/de
Expired 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
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/12—Load-carrying floor structures formed substantially of prefabricated units with wooden beams
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
    • E04B1/2604—Connections specially adapted therefor
    • E04B1/2612—Joist hangers

Definitions

  • This invention relates to a joist support for use in building, and to a building structure including such a support.
  • joist includes all forms of structural timber element such as roof trusses for example as well as the timbers conventionally referred to as joists and intended to support floors and ceilings.
  • a joist support for use in building, for securing a joist (as hereinbefore defined) to a supporting structure (as hereinafter defined)
  • the joist support comprising a sheet metal member having a fold extending completely across it to form a rigid spine which divides the member into a pair of generally planar mutually perpendicular flanges; one of the flanges including a fixing portion having fixing means for securing an end portion of the joist to the member; the other flange comprising a bearing portion adapted to bear on the supporting structure; location means being provided on said one or said other flange for locating the end of the joist at a position such that a substantial part of the member projects beyond the end of the joist, the bearing portion of said other flange being located wholly within said projecting part and the rigid spine extending throughout at least a major part of both the fixing portion and the bearing portion and being aligned, in use, along an elongate edge of the joist
  • the location means are disposed on said one flange. They may comprise one or more tongues of metal pressed out of the plane of the flange or one or more apertures through which the end of the joist can be seen.
  • Said other flange may additionally include a support portion disposed, in use, in supporting relation beneath the end portion of -the joist.
  • the bearing portion of said other flange may have a width, measured from the rigid spine, which is substantially greater than that of the joist, at least at the region thereof adjacent the end of the joist.
  • One or more keying formations may be provided on the bearing portion.
  • one or more fastener receiving openings may be provided in the bearing portion.
  • the sheet metal member is of slightly elongate generally rectangular form and the fold extends obliquely across the member from one corner, to intersect the longer side of the elongate rectangle adjacent the opposite corner.
  • the invention also provides a building structure comprising a supporting structure (as hereinafter defined), a joist (as hereinbefore defined), and a joist support as set out above, securing the joist to the supporting structure.
  • a “supporting structure” as herein defined may comprise a wall which may be of masonry elements arranged in courses, or may comprise a timber support on which the load formed by a joist, roof truss or other timber member is to be taken.
  • the joist support may be keyed into mortar or the like settable material by one or more keying formations provided on the bearing portion.
  • bearing portion of the joist support may be secured by means of nailing or bolting, particularly where the supporting structure is made of timber. Suitable fastener openings to receive nails or bolts will then be provided in the bearing portion.
  • the joist support will be seen to comprise a generally rectangular metal member 10 which has a single oblique fold 11, extending from one corner 12 across the member 10 to intersect an elongate edge 13 of the metal member adjacent the corner 14 opposite the first mentioned corner 12.
  • the metal member is therefore divided by the fold 11 into one flange 15 which is generally upright in use and another flange 16 which is generally horizontal in use.
  • the fold 11 can be regarded as a rigid spine extending somewhat diagonally across the metal member 10 and providing a considerable degree of rigidity.
  • the two flanges 15 and 16 are disposed at right angles to each other and, in use, the joist 17 which is outlined in chain dotted lines is placed in abutment with the flanges 15 and 1b.
  • the position of the end of the joist is controlled by placing the end of the joist so that it can be seen through a joist locating aperture 18.
  • a tongue or more than one tongue of metal can be pressed out of the member 10 to provide joist locating means equivalent to the aperture 18.
  • the aperture 18 is shown provided on the one flange 15 but could alternatively be provided on the other flange 1b.
  • the end portion of the joist is positioned so that its end face is located at the aperture 18 and it is then secured to the one flange 15 by suitable fastening means.
  • a number of nail holes 19 are provided, through which nails can be driven into the joist.
  • a pair of large diameter bolt holes 20 are also provided. All of these fixing holes are provided in a fixing portion of the one upright flange 15, this fixing portion lying to the right hand side of the chain-dotted line 21 which indicates the end of the joist.
  • the majority of the nail holes 19 are disposed well to the right of this line 21, so as to comply with the requirements of the relevant standard which requires that the structural fixings should be placed and spaced at such a distance from the end as to prevent splitting or similar degradation of the material.
  • the main securing nails will be at least twenty times the nail diameter from the end for example.
  • An additional nail hole 22 is provided somewhat closer to the line 21 for added stiffness by reducing the buckling length of the free edge 32 of the extension 30.
  • the free edge 32 of the extension 30 could be stiffened by one or more ribs for example.
  • the other flange 16 of the member 10 is disposed horizontally in use and includes a support portion 23 which is disposed beneath the end of the joist 17 in use. This may contribute to supporting and locating the joist although the joist is not secured to this support portion 23.
  • a large opening 24 is provided in the support portion 23, to be used for securing, for example, plasterboard to the underside of the joist.
  • the other flange 16 also includes a bearing portion 25. This bears on the upper surface of a supporting structure 26 shown in dotted outline.
  • the bearing portion has a large aperture 27 which may be used as a mortar key to embed the bearing portion 25 in mortar used between adjacent courses of masonry. This keying is also assisted by virtue of the fact that a corner 2b of the member 10 is also positioned to the left hand side as shown of the line 21 which represents the position of the end of the joist and also of the edge of the supporting structure 26; thus, the corner 2b is embedded in the mortar if mortar is provided.
  • a pair of nail holes 29 are provided, to enable the joist support to be used on a supporting structure of timber, to which it will then be nailed using these holes 29.
  • a bolt can be inserted through the aperture 27 or other purpose designed fixing means can be provided.
  • a joist support as shown in detail in Figure 1 is secured to each end of the joist 17 and effectively forms an extension 30 of the joist projecting from the end of the joist.
  • This extension is the part of the joist support to the left hand side of the line 21 in Figure 1.
  • these extensions 30 can be rested on the previously provided supporting structures 26.
  • the walls will be built up to the level at which the joists are to be provided and a pair of joist supports according to the invention will then be secured, for example by nailing, to the end portions of the joist 17.
  • the extensions 30 at each end of the joist can then be rested on the masonry of the walls as shown in Figure 2. It will be seen that the structure is fully stable without any additional courses of masonry being built above the joist support at that stage.
  • This feature of the joist support makes it adaptable for use in securing roof trusses in place to the top of a wall. In this case, there would normally be no masonry above the level of the base of the roof truss which would make the use of a conventional joist hanger impracticable.
  • the load of the joist is spread across the width of the bearing portion in the region of the line 21 denoting the end of the joist, which coincides roughly with the edge of the lightweight blocks forming the supporting structure 26.
  • the rigidity of the spine formed by the fold 11 also serves to distribute the joist load across the thickness of the lightweight block. In this way, the load is not concentrated on the forward edge of the block, which might cause that forward edge to crumble, but is spread over a large, generally triangular region of the top surface of the block.
  • joist support shown in the drawings and described above has considerable advantages compared with a conventional welded joist hanger. Firstly, it can be manufactured quite simply by stamping and pressing from sheet metal which can be galvanised to any desired thickness as it does not need to be welded.
  • the sheet metal member 10 is generally rectangular, being slightly skewed as shown to permit the corner 2b to lie inboard of the line 21 and of the edge of the supporting structure 2b. This means that large numbers of the metal members can be cut without substantial wastage from a single sheet.
  • the forces acting on the bearing portion 25 of the joist support, in use, are largely downward compressive forces whereas, with a conventional joist hanger, the forces on the bearing portion tend to be both downward compressive forces and lateral shear forces tending to pull the bearing portion out of the mortar joint. This is because the joist is disposed below the forward edge of the bearing portion of a conventional joist hanger.
  • the joist support of the present invention is positively secured at the side of the joist by means of the fixings passing through holes 19 or 20.
  • joist supports in the form shown are capable of being stacked one on another in a very minimal space and can readily be packed for transport and storage.
  • roof trusses for example could be provided with supports of the general type shown which are fitted in the factory before the roof trusses are delivered to a building site.
  • the joist support shown has a fold 11 extending somewhat diagonally from one corner 12 to the region of the opposite corner 14, this need not necessary be the case and the support could be of simple angle section, provided that adequate bearing area and fixing area were provided. In this case, it might be necessary to reduce the height of the upright 31 on the extension 30 of the one flange 15, in order to accommodate coursing of brickwork or other masonry in use.
  • flanges are generally planar, they could be ribbed or otherwise profiled for stiffness or to improve keying or friction.
  • the joist support shown should be provided in left-hand and right-hand forms. If these are used alternately, with the joist disposed at conventional centres of 400 millimetres, the upright 31 will be spaced correctly to occur in the interstices between building elements of a course of masonry in alternate bays.
  • a masonry saw can be used to slot the masonry elements to accommodate the upright 31. If it is desired to use the joist support in renovation of existing buildings, a masonry saw can again be used to produce a pair of perpendicularly disposed slots into which the joist support can be slid. It will be appreciated that no mortar is required to secure the joist support in position so that renovation work is much more satisfactory than it would be using a conventional joist hanger which requires a mortar bond to provide ' edge bearing and hold it securely in position.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
EP19800105565 1979-09-28 1980-09-17 Stütze für Tragbalken zur Verwendung im Bau und Baustruktur mit einer solchen Stütze Expired EP0026397B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7933744 1979-09-28
GB7933744 1979-09-28

Publications (3)

Publication Number Publication Date
EP0026397A2 true EP0026397A2 (de) 1981-04-08
EP0026397A3 EP0026397A3 (en) 1981-06-03
EP0026397B1 EP0026397B1 (de) 1984-03-21

Family

ID=10508155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800105565 Expired EP0026397B1 (de) 1979-09-28 1980-09-17 Stütze für Tragbalken zur Verwendung im Bau und Baustruktur mit einer solchen Stütze

Country Status (3)

Country Link
EP (1) EP0026397B1 (de)
DE (1) DE3067163D1 (de)
IE (1) IE50239B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141460A (en) * 1983-06-18 1984-12-19 Press Bat Holdings Ltd Method of butt jointing timbers in a building and splice plate for performing the method
US4546579A (en) * 1983-02-15 1985-10-15 Gang-Nail Systems, Inc. Seat plate protecting structural members
FR2645568A1 (fr) * 1989-04-07 1990-10-12 Ricard Coffrages Bride d'assemblage, son procede de fabrication, et pieces metalliques d'armature ou de charpente equipees d'une telle bride
GB2433269A (en) * 2005-12-14 2007-06-20 Harold John Andrews Joist hanger or similar support for a timber joist or the like
EP2546424A3 (de) * 2011-02-08 2014-02-26 Simpson Strong-Tie Company, Inc. Winkelträger zur Befestigung eines ersten Bauelements an ein zweites Bauelement und Verfahren zur Herstellung eines Winkelträgers
WO2017020098A1 (fr) * 2015-07-31 2017-02-09 Delfeld Marc Pièce de connexion

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1945925A (en) * 1932-11-08 1934-02-06 Stiefel William Metallic tie structure
US2751644A (en) * 1953-12-14 1956-06-26 Axel V Pedersen Joist hanger
GB868578A (en) * 1959-09-09 1961-05-17 Arthur Leonard Wallis Improvements in and relating to metallic timber connectors
GB977164A (en) * 1962-11-14 1964-12-02 Timber Engineering Co Improvements in and relating to joist connectors for wooden buildings
US4003179A (en) * 1976-01-21 1977-01-18 Simpson Manufacturing Co., Inc. Truss hanger
GB2027477A (en) * 1978-07-26 1980-02-20 Bat Building Joist hanger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1945925A (en) * 1932-11-08 1934-02-06 Stiefel William Metallic tie structure
US2751644A (en) * 1953-12-14 1956-06-26 Axel V Pedersen Joist hanger
GB868578A (en) * 1959-09-09 1961-05-17 Arthur Leonard Wallis Improvements in and relating to metallic timber connectors
GB977164A (en) * 1962-11-14 1964-12-02 Timber Engineering Co Improvements in and relating to joist connectors for wooden buildings
US4003179A (en) * 1976-01-21 1977-01-18 Simpson Manufacturing Co., Inc. Truss hanger
GB2027477A (en) * 1978-07-26 1980-02-20 Bat Building Joist hanger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546579A (en) * 1983-02-15 1985-10-15 Gang-Nail Systems, Inc. Seat plate protecting structural members
GB2141460A (en) * 1983-06-18 1984-12-19 Press Bat Holdings Ltd Method of butt jointing timbers in a building and splice plate for performing the method
FR2645568A1 (fr) * 1989-04-07 1990-10-12 Ricard Coffrages Bride d'assemblage, son procede de fabrication, et pieces metalliques d'armature ou de charpente equipees d'une telle bride
WO1990012180A1 (fr) * 1989-04-07 1990-10-18 Coffrages Ricard Bride d'assemblage, son procede de fabrication, et pieces metalliques d'armature ou de charpente equipees d'une telle bride
GB2433269A (en) * 2005-12-14 2007-06-20 Harold John Andrews Joist hanger or similar support for a timber joist or the like
EP2546424A3 (de) * 2011-02-08 2014-02-26 Simpson Strong-Tie Company, Inc. Winkelträger zur Befestigung eines ersten Bauelements an ein zweites Bauelement und Verfahren zur Herstellung eines Winkelträgers
WO2017020098A1 (fr) * 2015-07-31 2017-02-09 Delfeld Marc Pièce de connexion
US10227770B2 (en) 2015-07-31 2019-03-12 Marc Delfeld Connection part

Also Published As

Publication number Publication date
EP0026397B1 (de) 1984-03-21
IE50239B1 (en) 1986-03-05
IE801929L (en) 1981-03-28
DE3067163D1 (en) 1984-04-26
EP0026397A3 (en) 1981-06-03

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