EP0093224B1 - Drachträger Zusammenbau - Google Patents

Drachträger Zusammenbau Download PDF

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Publication number
EP0093224B1
EP0093224B1 EP82850095A EP82850095A EP0093224B1 EP 0093224 B1 EP0093224 B1 EP 0093224B1 EP 82850095 A EP82850095 A EP 82850095A EP 82850095 A EP82850095 A EP 82850095A EP 0093224 B1 EP0093224 B1 EP 0093224B1
Authority
EP
European Patent Office
Prior art keywords
beams
boards
connecting means
roof truss
flanges
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.)
Expired
Application number
EP82850095A
Other languages
English (en)
French (fr)
Other versions
EP0093224A1 (de
Inventor
Bengt Ake Kindberg
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
Priority to DE8282850095T priority Critical patent/DE3277313D1/de
Priority to AT82850095T priority patent/ATE29752T1/de
Publication of EP0093224A1 publication Critical patent/EP0093224A1/de
Application granted granted Critical
Publication of EP0093224B1 publication Critical patent/EP0093224B1/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
    • 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
    • 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
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/17—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with non-parallel upper and lower edges, e.g. roof trusses
    • 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
    • E04B2001/2644—Brackets, gussets or joining plates
    • 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
    • E04B2001/2672—Connections specially adapted therefor for members formed from a number of parallel sections

Definitions

  • the present invention relates to a light-weight roof truss assembly suitable for being mounted at the building site and consisting of wooden beams or girders and connecting means in which said beams are insertable to be connected with each other, each connecting means consisting of a pair of identical nailable boards which are fixed in opposed relationship on opposite sides of said beams by fixing means which are driven through the boards of said connecting means and the beam disposed therebetween, said beams to be interconnected being insertable into a position determined by the desired roof truss configuration.
  • roof trusses by a carpenter on a building site demands great skill and normally involves high costs. For this reason, one has instead chosen, to an ever greater extent, to manufacture roof trusses in factories and deliver them ready for erection on the building site. Since industrial manufacture is rational, it has been possible to bring down costs, but, in some cases, the transport to the building site is a problem because of the lack of special vehicles. In addition, cost savings can be reduced in cases where it is desirable to produce a small series of roof trusses with special dimensions or of special design because the machines must first be properly adjusted.
  • US-A-4 275 537 discloses a large heavy beam comprising a considerable amount of iron, solid beams and a steel wire. This beam is unable to solve the above-mentioned problem and the publication does not show the appearance of the ridge portion of the roof trusses. Presumably, two beams forming an angle with one another are interconnected by means of truss plates. This publication involves pretensioning of roof beams by means of a steel wire, and the metal structure illustrated is specifically adapted to connect the steel wire to the upper chord.
  • GB-A-2 051 908 shows the conventional use of truss plates which are disadvantageous in that the timber must be cut at the correct angles at locations where two pieces of timber meet.
  • Truss plates are usually applied by means of a press in the factory, but it is also possible to use a hammer, although the result will then not always be the best.
  • the object of the present invention is to make it possible to manufacture light-weight roof trusses of every desired dimension, construction and roof pitch on the building site in an uncomplicated way and at a competitive price.
  • this object is achieved by the provision of a roof truss assembly as disclosed in "Konstrutations institute", in which said beams are of the type consisting of flanges of wood and a web of metal interconnecting said flanges, and that at least one spacer forming a stop for restricting the depth of insertion of the beams in said connecting means is fixed between said boards; those being marked on the outside at the locations where the fixing means are to be driven in for anchorage of the wood flanges of the beams and of the spacer in said boards.
  • the roof truss generally designated 10 in the drawing, consists of beams 11, 12 and 13 of which the beams 11 and 12 form the upper chords of the truss while the beam 13 forms the lower chord.
  • the beams 11, 12 and 13 are composed of flanges 14, 15 and a web 16 in the form of a wire bent in zigzag which interconnects the flanges. These beams give a highly resistant and light-weight roof truss. Instead of the beams illustrated in the drawing, it is of course possible to use conventional roof truss wood.
  • the beams 11, 12 forming the upper chords are secured to each other by a connecting means in the form of an insert member 17 consisting of two identical, parallel boards 19, for instance of plywood, which are disposed opposite each other and nailed at 21 an opposite sides of a wooden block 20, thus forming a spacer.
  • the adjacent, outwardly facing edge surfaces of the means 17 make an angle with each other which corresponds to the desired roof pitch.
  • the end portions of the beams 11, 12 are insertable until the squarely cut ends of the beams abut against the spacer 20.
  • the beams 11, 12 are so placed that their outwardly facing sides are flush with the outer sides of the means 17, whereby the beams 11, 12 are placed with the desired slope, which in the present instance corresponds to a roof pitch of 45°.
  • the beams 11, 12 are fixed in the insert member by means of nails 23 which are driven through both of the boards 19 and the flanges of the intermediate beam.
  • the boards 19 on the outside have markings 22 which indicate where the nails 23 should be driven in.
  • the beams 11, 12 forming the upper chords are joined with the beam 13 of the lower chord by means of insert members 18 which also consist of two parallel, opposed boards 24 which, like the boards 19, are held at a distance from each other which corresponds to the thickness of the beam flanges, by means of spacers 25, 26 which also serve as stops and support means for the beam ends.
  • the boards 24 here have two opposite sides making an angle with each other which is determined by the roof pitch, in this instance 45°, being interconnected at the side facing away from the beams by means of a short side which is at right angles to the side of the connecting means that extends along the upper chord beam.
  • the side of the means 18 which faces away from the beams is located, as appears from the drawing, at a distance from the spacers 25, 26 and between these spacers and said side there are provided wooden blocks 27, 28 extending along the outer sides of the connecting means, thus defining a space closed on three sides.
  • a fixing portion 30 of a loose truss overhang is insertable and fixable by nailing. If the roof to be made should have no truss overhangs, said space is sealed by means of a wooden block 31 which is fastened with nails.
  • the required amount of insert members 17, 18 are ordered from the factory, it being necessary only to indicate the desired roof pitch.
  • the means 17,18 are then delivered together with beams 11, 12, 13, if such are not already available on the building site since being also usable as framework elements, e.g. studs, in housing constructions, and truss overhangs or, alternatively, wooden blocks 31.
  • the beams 11, 12 and 13 are cut to suitable lengths.
  • the beam ends are then inserted in the insert members 17, 18 in the manner shown in the drawing, whereupon nails are driven in at the indicated locations.
  • the manufacture of the trusses is highly rational and, hence, they can be produced at a low price. If use is made of beams 11, 12, 13 of the type shown in the drawing, the result will be a light-weight roof truss with excellent physical properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)

Claims (3)

1. Leichte Dachkonstruktion, geeignet zur Errichtung an der Baustelle und bestehend aus hölzernen Balken oder Trägern (11, 12, 13) und Verbindungsgliedern (17, 18), in die die Balken einführbar sind, um miteinander verbunden zu werden, wobei jedes Verbindungsglied (17, 18) aus zwei identischen, nagelbaren Tafeln (19, 24) besteht, die einander gegenüber auf entgegengesetzten Seiten der Balken (11, 12, 13) mittels Befestigungsglieder (23) befestigt sind, die durch die Tafeln (19, 24) der Verbindungsglieder und den dazwischen angebrachten Balken (11, 12, 13) getrieben werden, wobei die miteinander zu verbindenden Balken (11, 12, 13) in einer von der erwünschten Dachstuhlkonfiguration bestimmten Lage einführbar sind, dadurch gekennzeichnet, dass die Balken (11, 12, 13) des aus hölzernen Flanschen und einem diese verbindenden Metallsteg bestehenden Typs sind, und dass zwischen den Tafeln (19, 24) zumindest ein Abstandstück (20, 25, 26) befestigt ist, das einen die Einführungstiefe der Balken (11, 12, 13) in die Verbindungsglieder begrenzenden Anschlag bildet, wobei die Verbindungsglieder auf ihrer Aussenseite an denjenigen Stellen (22) Markierungen tragen, wo die Befestigungsglieder (23) zur Verankerung der hölzernen Flansche der Balken (11, 12, 13) und der Abstandstücke (20, 25, 26) in die Tafeln (19, 24) einzutreiben sind.
2. Dachstuhlkonstruktion nach Anspruch 1, dadurch gekennzeichnet, dass das untere Verbindungsstück (18) des Dachstuhls ausser dem die Balken (11, 12, 13) aufnehmenden Raum einen Raum besitzt, in den ein Schaftteil (30) eines losen Dachstuhlüberstandes (29) einführbar und befestigtbar ist.
3. Dachstuhlkonstruktion nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Verbindungsglieder (17, 18) aus Sperrholztafeln (19, 24) bestehen, die auf entgegengesetzten Seiten von die genannten Abstandstücke (20, 25, 26) bildenden Holzblöcken genagelt sind.
EP82850095A 1980-11-05 1982-05-04 Drachträger Zusammenbau Expired EP0093224B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8282850095T DE3277313D1 (en) 1982-05-04 1982-05-04 Roof truss assembly
AT82850095T ATE29752T1 (de) 1982-05-04 1982-05-04 Drachtraeger zusammenbau.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8007746A SE441021B (sv) 1980-11-05 1980-11-05 Takstolsats med forbindningsorgan innefattande spikbara plattor med distanselement

Publications (2)

Publication Number Publication Date
EP0093224A1 EP0093224A1 (de) 1983-11-09
EP0093224B1 true EP0093224B1 (de) 1987-09-16

Family

ID=20342166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82850095A Expired EP0093224B1 (de) 1980-11-05 1982-05-04 Drachträger Zusammenbau

Country Status (2)

Country Link
EP (1) EP0093224B1 (de)
SE (1) SE441021B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563855A1 (fr) * 1984-05-07 1985-11-08 Legrand Roland Ossature en bois deployable.
EP0890685A1 (de) * 1997-07-09 1999-01-13 Wiesner-Hager Baugruppe Ges.M.B.H. Träger
US7979981B2 (en) 2005-05-23 2011-07-19 Innovequity Inc. Automated construction system
US9670676B2 (en) 2014-03-24 2017-06-06 Universal Forest Products, Inc. Truss

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH86676A (de) * 1919-07-02 1920-09-16 Kienast Heinrich Holzfachwerkkonstruktion.
GB634277A (en) * 1948-01-02 1950-03-15 Cawood Wharton & Company Ltd Improved box spar and truss formation
FR1067094A (fr) * 1952-11-24 1954-06-11 Ferme en bois
US3263381A (en) * 1963-10-28 1966-08-02 Rafters Inc Building frame structure
DE1609653C3 (de) * 1966-12-23 1974-06-27 Greimbau-Lizenz-Gmbh, 3200 Hildesheim Kastenträger
US4275537A (en) * 1977-05-26 1981-06-30 Tension Structures, Inc. Tension members
FR2434908A1 (fr) * 1978-09-01 1980-03-28 Gaspaillard Jean Element d'ossature pour un portique autoporteur en bois et procede de montage de cet element
GB2041060B (en) * 1978-12-21 1982-12-01 Redland Technology Ltd Rafters roof structures
GB2051908A (en) * 1979-06-13 1981-01-21 Jean Champeau Et Cie Sa Entrep Prefabricated Roof Truss

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Grundzüge des neuzeitlichen Holzbaues, Band 1, (1981), Konstruktionselemente von G. Dröge und K.-H. Stoy, Verlag von Wilhelm Ernst & Sohn, Berlin-München *

Also Published As

Publication number Publication date
SE8007746L (sv) 1982-05-06
SE441021B (sv) 1985-09-02
EP0093224A1 (de) 1983-11-09

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