EP0277681A1 - Elément en caisson autoportant pour toiture - Google Patents

Elément en caisson autoportant pour toiture Download PDF

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Publication number
EP0277681A1
EP0277681A1 EP88200112A EP88200112A EP0277681A1 EP 0277681 A1 EP0277681 A1 EP 0277681A1 EP 88200112 A EP88200112 A EP 88200112A EP 88200112 A EP88200112 A EP 88200112A EP 0277681 A1 EP0277681 A1 EP 0277681A1
Authority
EP
European Patent Office
Prior art keywords
box
roof
roof element
floor
rafter
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
EP88200112A
Other languages
German (de)
English (en)
Inventor
Antonius Marinus Ettema
Johan Riezebos
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.)
Rockwool Lapinus BV
Original Assignee
Rockwool Lapinus BV
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 Rockwool Lapinus BV filed Critical Rockwool Lapinus BV
Publication of EP0277681A1 publication Critical patent/EP0277681A1/fr
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
    • 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
    • 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
    • E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
    • E04B7/22—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material
    • E04B7/225—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material the slabs having non-structural supports for roofing materials

Definitions

  • the invention relates to a box-like roof element for a rafter roof of a building, to a building provided with a roof having such a box-like roof element and to a floor anchor for use thereby.
  • Box-like roof elements are self-supporting roof elements which can be used as purlin element or as rafter member. In the case of use as rafter member placing is carried out on the walls of a building and a truss may if required serve as intermediate support.
  • Roofs provided with such box-like roof elements have the drawback that supply on an industrial scale of small-­scale purpose-built structures entails such high adaptation costs for the box-like roof elements and the roof construction that roofs manufactured on such a scale have a markedly exces­sive cost price per sq.m.
  • the invention provides for this need and a building that is furnished with a roof with self-supporting box-like roof elements which meet the above mentioned requirements is characterized according to the invention in that the box-like roof element supports with the base plate via a floor beam extending transversely of the rafters on and is anchored to a floor of the building.
  • the box-like roof element according to the invention thus supports on its lower end and/or upper end only with the base plate via the lying floor beam, whereby the rafters give the box-like roof element bending rigidity and the floor beam supports the whole box-like roof element via the base plate and secures it against shifting.
  • the floor beam is preferably provided with a longi­tudinal rib against which the base plate rests.
  • a very advantageous connection between box-like roof element and floor beam is obtained if on its lower sur­face facing away from the rafters the base plate is preferably provided with a rabbet into which the floor beam grips.
  • the base plate is namely of particular importance that the lower surface of the base plate substan­tially displays no protrusions or irregularities and that a well secured support is nevertheless ensured.
  • the box-like roof elements preferably possess a length such that one single box member spans the horizontal distance between the line of the ridge and the roof gutter and the supporting member is a floor beam which supports on the floor.
  • the latter has to be additionally se­cured against deflection by making use of a support frame.
  • the lower surface is provided with a rabbet located parallel to and at an interval from a lower edge of the box-like roof element, into which rabbet grips a support frame.
  • the floor beam rests in an anchor seat of a floor anchor attached to the floor.
  • the anchor seat comprises a floor anchor base, a floor anchor part sloping relative to the floor and a floor anchor end portion that is bent such that this floor anchor end portion is parallel to and lies against a lower face of a box-like roof element.
  • the floor anchor form can be adapted rapidly and simply to a different roof slope by changing of the bending through another angle. Since in addi­tion the floor anchor end portion lies against the lower face of the box-like roof element there is no danger of undesired change in shape as a result of later bending of the floor anchor.
  • the floor anchor is provided with a bearing lip with a ridge on which a box-like roof element laid on the bearing lip supports on its upper end, whereby the ridge grips the rabbet in the element base plate, a box-­like roof element can support on a floor such that there is substantially no horizontal load acting in a bearing support located at a lower level.
  • box-like roof elements adjoining each other can be connected.
  • the box-like roof element can be split up into modules, whereby a module size of 120, 60 or 30 cm corresponds exactly with sizes currently applied in practice. If in pre­ference the box-like roof element comprises four rafters, two edge rafters and two centre rafters and the interval between an edge rafter and a centre rafter is equal to a, the box-­like roof element can easily be split up by sawing through the base plate between the two centre rafters.
  • a box-like roof element is provided at its ridge end with a groove for accommodation therein of a ridge runner, provisions can be made beforehand in a simple manner for rapid placing of the ridge runner.
  • the invention further relates to the self-supporting box-like roof element for a roof that is characterized in its preferred embodiment by a base plate, at least two rafters attached onto the base plate at an interval a from each other, insulation material located in rafter channels formed between rafters, and a rabbet arranged in the lower surface of the base plate facing away from the rafters intended for accom­modation therein of a rib of a support member. If it is neces­sary to use a support frame the self-supporting box-like roof element is further characterized in that the lower surface is provided with a second rabbet located parallel to and at an interval from the first rabbet and intended for accommodation therein of a support frame.
  • each rabbet the form of the floor anchors, the floor beam and the support frame can be quickly and simply determined depending on the specified roof slope and span.
  • the invention relates to a floor anchor for a box-like roof element according to the invention.
  • Fig. 1 shows a building 1 provided with a rafter roof 2.
  • This rafter roof 2 comprises box-like roof elements 3-7 according to the invention.
  • Each box-like roof element 3-­7 supports at the gutter edge 8 via a floor beam 9 on a floor 10.
  • the box-like roof elements 4 and 5 are provided with a roof light 12 arranged in a break-through 11. Box-like roof elements 7 and 13 pass over a bearing wall 14 without supporting thereon. Box-like roof elements 3-7 and 13 further support on a support frame 15.
  • Fig. 2-5 show in more detail the structure of a box-like roof element according to the invention and the construction of the rafter roof 2.
  • the box-like roof element 4 as in fig. 4 comprises a base plate 16 and four rafters 17-­20.
  • the interval a between the edge rafters 17, 20 and the central rafters 18, 19 is such that the interval a muliplied by twice the width of a rafter is equal to a modular size, in this case 60 cm.
  • Box-like roof element 3 is obtained from box-like roof element 4 by sawing the base plate 16 longi­tudinally through the middle at the point of a gap 21 between the central rafters 18 and 19.
  • Rafters 17, 20 are attached using nails or staples 22 to base plate 16.
  • Insulation material is laid between rafters 17 and 18 and 19 and 20 in the rafter channels 23.
  • the base plate for example chipboard, is 16 mm thick, the insulation material 24 consists for example of rockwool and is 85 mm thick.
  • the rafaters are for example 25 mm wide and 102 mm high.
  • Base plate 16 is provided with two rabbets 26 and 27 arranged transversely in the lower surface of the base plate 16 facing away from rafters 17-20.
  • the rabbets 26 and 27 are for instance 10 mm deep and 30 mm wide.
  • Box-like roof element 3 lies with a rabbet wall 28 against a rib 29 of the floor beam 9.
  • Floor beam 9 rests in an anchor seat 30 of a floor anchor 32 anchored on the floor 10 with fastening means 31.
  • Each anchor seat 30 comprises a floor anchor base 33 a floor anchor part 34 sloping relative to floor 10 and a floor anchor end portion that is bent such that end portion 35 is parallel to and lies against the lower surface 25 of base plate 16. Using screws 136 the base plate 16 is fastened onto floor beam 9, thus fixing the floor anchor end portion 35. A translation between floor beam 9 and box-like roof element 3 is then substantially impossible.
  • the upper edge 36 of support frame 15 grips into the rabbet 27.
  • the box-like roof element 3 is provided in a bevelled edge 39 with a groove 38 in which is laid a ridge runner 40.
  • the box-like roof element is connected for pivoting via hinge means 41 to another box-like roof element 42 according to the invention.
  • rafters 17-20 Attached to rafters 17-20 are tile battens 43 onto which hook roof tiles 44.
  • a gutter 45 is attached via a gutter support 46 to box-like roof element 3.
  • Fig. 6 shows a nomogram with curves 47-49, from which can be deduced the support frame height in relation to the roof slope and span of the box-like roof element.
  • the curve 47 relates to a support frame height of 120 cm
  • curve 48 to a support frame height of 90 cm
  • curve 49 to a support frame height of 90 cm and which is further supported to the maximum.
  • Fig. 7 shows the coupling between two box-like roof elements 6 and 7 adjoining each other at the side.
  • the base plates 16 abut each other and a space between the edge rafters 50 and 51 is sealed laterally with a stopper 52 of polyure­thane foam.
  • the tile batten 53 runs transversely over the box-like roof elements 6 and 7 and carries the tiles 54.
  • Fig. 8 shows the coupling between the box-like roof elements 13 and 7 at the point of the bearing wall 14.
  • the box-like roof elements extend along this bearing wall 14 and the distance between wall 14 and edge rafters 54 and 55 is filled by a filling 57 and a stopper 56 of polyurethane foam.
  • a variation in the thickness of the wall 14 double brick lime sandstone, gas concrete blocks etc.
  • a visual batten 58 removes the gap between box-like roof elements 7 and 13 from view.
  • Laid over wall 14 and between rafters 54 and 55 is a mat of insulating material 58. In addition to an insulating effect, cross-over of sound over the wall 14 is markedly decreased.
  • the tile battens 59 and 60 also do not connect above wall 14.
  • Fig. 9 shows in detail the roof break-through 11 for the roof light 12.
  • the edge rafter 61 of box-like roof element 4 is provided along the roof break-through 11 with a reinforcing rafter 62.
  • Roof light 12 rests on reinforcing rafter 62 and on a transverse batten 53 which is attached to base plate 16.
  • Attached to the frame 64 of roof light 12 is an aluminium gutter profile 65 which rests on a gutter support 66 and is further provided with a tile rib 67.
  • a rib 68 of polyurethane foam is arranged on the insulating material 24, as a result of which moisture that has come under the tiles 69 collects in an aluminium gutter profile 70 which slopes downward and extends to the sides outside the box-like roof element 4. This moisutre can then run off down­ward over the insulation material 24, eventually reaching the roof gutter 45.
  • Fig. 10 and 11 show the manufacture of box-like roof element 4 from fig. 4.
  • the four rafters 17, 18, 19 and 20 are carried above a table 71 as according to arrows 72 and lie against a guide strip 73.
  • the rafters are displaced towards one another in the direc­tion of arrows 76 and the insulation material 24 is fixed between rafters 17, 18, 19 and 20, while the centre rafters 18 and 19 are held at a distance by spacers 77.
  • adhesive 82 is applied to rafters 17-20 and to the insulating material.
  • a base plate 16 is laid on rafters 17-20 and attached thereto using staples 22.
  • the insulation material is subsequently moved in vertical direction using table parts 79 and 80. These latter press the insulation material against the base plate 16, thus resulting in a good mutual adhesion.
  • the former can be provided with a rabbet 26 as according to the invention which is arranged with a cutter 83.
  • a sawing unit 84 comprises a circular saw 85 with a cutter 86 attached to the saw blade which is in­tended for the forming of the groove 38.
  • the circular saw 85 is guided on guide rods 87 and is mounted for rotation in a bracket 88.
  • circular saw 85 can be set such that the ridge angle ⁇ is arranged in one sawing movement. The position of use is obtained by tilting the box-like roof element.
  • Fig. 12 shows in more detail an assembly of the box-like roof elements 4 and 89 which are connected for pivot­ing with hinge means 41. Clearly shown are also the ridge groove 38 and the slanting face 39. Both base plates 16 are also provided with the rabbets 26 and 27, which do not however necessarily lie opposite each other.
  • This assembly 90 of the box-like roof elements 4 and 89 is transported to the building site, folded out on site and directly placed such that the rib 29 and the upper edge 36 of support frame 15 grip into the respective rabbets 26 and 27. The assembly 89 is then attached using fastening means 136 to the floor 10, on which assembly 89 supports entirely.
  • FIG. 13 and 14 show two other rafter roofs 91 and 92.
  • Rafter roof 91 consists only of a row of box-like roof elements 93 which support in the known manner via a rib 29 of the floor beam 9 gripping in rabbet 26 via the floor anchor 32 on the floor 32 ⁇ , while in this case the other lower end 94 rests on a supporting beam 95 and at that location no load occurs in horizontal direction.
  • the box-like roof element is protected on the top with a roof covering 96.
  • the span of box-like roof element 93 is such with this angle of slope that no support frame is necessary.
  • box-like roof elements 97 and 98 are coupled for pivoting via the hinge means 41.
  • Box-like roof element 97 is further provided with a dormer arranged in a broken through part.
  • an intermediate ceiling 100 is fitted which comprises trusses 101 which are attached using shoes 102 to the base plates 16 of box-like roof elements 97 an 98.
  • box-­like roof element 97 supports on the floor 10 in the previous­ly described manner.
  • fig. 15 shows the connection of two box-­like roof elements 103 and 104 at their end wall positions at the point of an intermediate floor 10 ⁇ .
  • the rib 29 of floor beam 9 supports an end wall portion 105 of the base plate 16 of box-like roof element 103.
  • Box-like roof element 104 rests with base plate 16 on a supporting lip 35 of floor anchor 32.
  • a ridge 107 standing up from supporting lip 35 grips into the rabbet 26 of base plate 16 of box-like roof element 104.
  • bolts 106 screwed into the floor beam 9 both box-like roof elements 103 and 104 are adequately fastened to the intermediate floor 10 ⁇ .
  • the box-like roof elements 103 and 104 again support entirely with their base plate 16 via floor beam 9 on floor 10 ⁇ .
  • the form of floor beam 9 and floor anchor 32 can again be adapted quickly and simply to any currently required angle of slope and span.
  • box-like roof elements according to the invention are only described as being open box-like, it will be apparent that the elements may also have the form of a closed box, in which case a top plate or top layer is at­tached over the rafters.
  • the insulation material that is used has to be water repellent and vapour permeable.
  • rockwool other suitable insulating materials can be used, such as glass wool, polyurethane foam and the like. If vapour inhibit­ing materials are used that are stronger relative to the insulating material, a vapour inhibiting foil may also be employed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP88200112A 1987-01-26 1988-01-21 Elément en caisson autoportant pour toiture Ceased EP0277681A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700180A NL8700180A (nl) 1987-01-26 1987-01-26 Zelfdragend doosdakelement voor een dak.
NL8700180 1987-01-26

Publications (1)

Publication Number Publication Date
EP0277681A1 true EP0277681A1 (fr) 1988-08-10

Family

ID=19849471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88200112A Ceased EP0277681A1 (fr) 1987-01-26 1988-01-21 Elément en caisson autoportant pour toiture

Country Status (2)

Country Link
EP (1) EP0277681A1 (fr)
NL (1) NL8700180A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020303A1 (fr) * 1992-03-30 1993-10-14 E2 Hus Produktions Ab Bloc de soutien de toit
AT1145U1 (de) * 1996-01-18 1996-11-25 Bauunternehmung Ing Anton Hutt Selbsttragende dachtafel und dachkonstruktionen
DE19728980A1 (de) * 1997-07-07 1999-02-11 Hans Guenter Dipl Ing Willmann Dachkonstruktion als Grundkonstruktion eine Dacheindeckung tragend sowie Trag- und Dämmelement
WO1999018300A1 (fr) * 1997-10-02 1999-04-15 Braas Gmbh Jeu de pieces detachees pour la construction du sous-toit d'une toiture inclinee
DE19743846A1 (de) * 1997-10-04 1999-06-02 Peter Dr Ing Maack Sattel- oder Walmdach
EP0890683A3 (fr) * 1997-07-07 2000-04-26 Hans Günter Willmann Structure de toit
GB2399831A (en) * 2003-03-28 2004-09-29 Wynn Peter Holloway Attachment device for roofing panels
DE102012007700A1 (de) * 2012-04-19 2013-10-24 Viebrockhaus Ag Stahlbetondecke mit mindestens einer darauf befestigten Fußpfette und Verfahren zur Herstellung einer Stahlbetondecke mit mindestens einer darauf befestigten Fußpfette

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289362A (en) * 1964-11-09 1966-12-06 Joseph A Whelan Prefabricated roof and eave anchor means therefor
DE2048512A1 (de) * 1969-10-07 1971-04-22 Byggnads AB Harry Karlsson, Lund (Schweden) Verfahren zum Errichten von Hausern mit nicht flachen Dachern
FR2351223A1 (fr) * 1976-05-11 1977-12-09 Vercelletto Antoine Procede de construction de charpentes et charpentes ainsi realisees
EP0018338A2 (fr) * 1979-04-06 1980-10-29 Knut Akesson Procédé de construction d'un bâtiment économisant de l'énergie et un tel bâtiment
DE2942945A1 (de) * 1979-10-24 1981-05-07 Kesting, Klaus Lorenz, Dr.-Ing., 4600 Dortmund Bausatz fuer ein satteldach, insbesondere ein kehlbalkendach aus vorgefertigten teilen fuer vorzugsweise vorgefertigte haeuser mit z.b. einem aus mehreren stahlbetonraumzellen bestehenden untergeschoss

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289362A (en) * 1964-11-09 1966-12-06 Joseph A Whelan Prefabricated roof and eave anchor means therefor
DE2048512A1 (de) * 1969-10-07 1971-04-22 Byggnads AB Harry Karlsson, Lund (Schweden) Verfahren zum Errichten von Hausern mit nicht flachen Dachern
FR2351223A1 (fr) * 1976-05-11 1977-12-09 Vercelletto Antoine Procede de construction de charpentes et charpentes ainsi realisees
EP0018338A2 (fr) * 1979-04-06 1980-10-29 Knut Akesson Procédé de construction d'un bâtiment économisant de l'énergie et un tel bâtiment
DE2942945A1 (de) * 1979-10-24 1981-05-07 Kesting, Klaus Lorenz, Dr.-Ing., 4600 Dortmund Bausatz fuer ein satteldach, insbesondere ein kehlbalkendach aus vorgefertigten teilen fuer vorzugsweise vorgefertigte haeuser mit z.b. einem aus mehreren stahlbetonraumzellen bestehenden untergeschoss

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BOUWWERELD, vol. 83, no. 12, 12th June 1987, page 35, Doetinchem, NL; J. WILSCHUT: "Bevestigingsbeugels voor dakbeschotelementen" *
CAHIERS DU CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT, no. 229, May 1982, pages 1-24, CSTB, Paris, FR; avis technique no. 5/81-377: "Couverture. Avis sur les éléments isolants porteurs de couverture. TRILATTE ET TRILAFEU" *
CAHIERS DU CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT, no. 242, September 1983, pages 1-6, CSTB, Paris, FR; constat de traditionalité no. 5/82-426: "Charpente-caisson. Constat de traditionalité sur le procédé de caisson rotulé de toiture. 3 D COMPOBOIS" *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020303A1 (fr) * 1992-03-30 1993-10-14 E2 Hus Produktions Ab Bloc de soutien de toit
AT1145U1 (de) * 1996-01-18 1996-11-25 Bauunternehmung Ing Anton Hutt Selbsttragende dachtafel und dachkonstruktionen
DE19728980A1 (de) * 1997-07-07 1999-02-11 Hans Guenter Dipl Ing Willmann Dachkonstruktion als Grundkonstruktion eine Dacheindeckung tragend sowie Trag- und Dämmelement
EP0890683A3 (fr) * 1997-07-07 2000-04-26 Hans Günter Willmann Structure de toit
DE19728980C2 (de) * 1997-07-07 2001-06-13 Hans Guenter Willmann Dachkonstruktion als Grundkonstruktion eine Dacheindeckung tragend sowie Trag- und Dämmelement
WO1999018300A1 (fr) * 1997-10-02 1999-04-15 Braas Gmbh Jeu de pieces detachees pour la construction du sous-toit d'une toiture inclinee
DE19743846A1 (de) * 1997-10-04 1999-06-02 Peter Dr Ing Maack Sattel- oder Walmdach
DE19743846C2 (de) * 1997-10-04 2000-09-21 Peter Maack Sattel- oder Krüppelwalmdach
GB2399831A (en) * 2003-03-28 2004-09-29 Wynn Peter Holloway Attachment device for roofing panels
GB2399831B (en) * 2003-03-28 2006-03-22 Wynn Peter Holloway Composite roof panels
DE102012007700A1 (de) * 2012-04-19 2013-10-24 Viebrockhaus Ag Stahlbetondecke mit mindestens einer darauf befestigten Fußpfette und Verfahren zur Herstellung einer Stahlbetondecke mit mindestens einer darauf befestigten Fußpfette
DE102012007700B4 (de) * 2012-04-19 2015-06-25 Viebrockhaus Ag Stahlbetondecke mit mindestens einer darauf befestigten Fußpfette

Also Published As

Publication number Publication date
NL8700180A (nl) 1988-08-16

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