EP0731233B1 - Dalle en treillis ayant des caractéristiques améliorées - Google Patents

Dalle en treillis ayant des caractéristiques améliorées Download PDF

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Publication number
EP0731233B1
EP0731233B1 EP96102798A EP96102798A EP0731233B1 EP 0731233 B1 EP0731233 B1 EP 0731233B1 EP 96102798 A EP96102798 A EP 96102798A EP 96102798 A EP96102798 A EP 96102798A EP 0731233 B1 EP0731233 B1 EP 0731233B1
Authority
EP
European Patent Office
Prior art keywords
chord
board according
webs
framework board
framework
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 - Lifetime
Application number
EP96102798A
Other languages
German (de)
English (en)
Other versions
EP0731233A1 (fr
Inventor
Jakob Rübeck
Dieter Bettinger
Friedhelm Rinkenberger
Andreas Schlund
Wolffgang Wiebel
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.)
Roehm GmbH Darmstadt
Original Assignee
Roehm GmbH Darmstadt
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 Roehm GmbH Darmstadt filed Critical Roehm GmbH Darmstadt
Publication of EP0731233A1 publication Critical patent/EP0731233A1/fr
Application granted granted Critical
Publication of EP0731233B1 publication Critical patent/EP0731233B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/54—Slab-like translucent elements
    • E04C2/543—Hollow multi-walled panels with integrated webs

Definitions

  • the invention relates to a truss panel from a thermoplastic consisting of three in each predetermined distance arranged parallel to each other Belts, of which a middle belt between an upper and a lower flange is arranged, and between the belts extending sloping webs for connection and Spacing of the straps, the webs - in cross section seen - in a zigzag between the upper chord and lower chord run.
  • Truss slab is a term that is changing more and more for a certain form of twin-wall sheets, which are also called Inclined multi-plate are known, has naturalized.
  • Twin-wall sheets made of thermoplastic materials in a transparent version for almost 25 years now Glazing in commercial and private areas used.
  • twin-wall sheets consist of two or more belt plates with intermediate ones Vertical and / or diagonal bars. This structure gives the panels have high rigidity with low weight and good thermal insulation properties. Based on these Properties as well as the high light transmission and Find weather resistance with good fire behavior
  • Twin-wall sheets preferably made from the Polymethyl methacrylate (PMMA), polycarbonate (PC) or plastics Polyvinyl chloride, usually used in commercial Area, e.g. B. for greenhouses, industrial and Sports halls, and in the private sector, e.g. B. for pergolas, Terrace canopies and winter gardens.
  • PMMA Polymethyl methacrylate
  • PC polycarbonate
  • Polyvinyl chloride usually used in commercial Area, e.g. B. for greenhouses, industrial and Sports halls, and in the private sector, e.g. B. for pergolas, Terrace canopies and winter gardens.
  • Double-wall / triple-wall plate in which the webs in regular distances to each other perpendicular to the Plate level run, so that the image of lined up rectangular chambers.
  • the webs form with the plates at an angle of approximately 45 o, which due to improved transmission of transverse forces to lower voltages and to higher stiffness at similar basis weight, results.
  • Inclined multi-wall sheets are known for polycarbonate become (EP-A-0 530 545), in which two in the given Distance parallel plates through both inclined webs and perpendicular ones Vertical webs are connected.
  • the inclined web multiple plate made of PC have a sufficient load capacity, since the buckling is shifted beyond the maximum load, which is defined so that the deflection at a load of 750 N / m 2 is not more than 5%, based on the width of the plate.
  • truss panels of the beginning to provide the kind mentioned that at sufficient rigidity as low as possible Weight per unit area with optimal thermal insulation exhibit.
  • the truss panels should conventional processes without any special additional Effort can be extruded.
  • the truss panel according to the invention can basically consist of made of any thermoplastically processable plastic be the one skilled in the art of manufacturing Twin-wall sheets as suitable for the production of the same considered.
  • Preferred thermoplastics include molding compounds based on polycarbonate, acrylic glass or polyolefins.
  • the one according to the invention is particularly preferred Truss panel made of acrylic glass.
  • Truss panel made of acrylic glass.
  • those to this Molding compounds used in practice are purposes those based on PMMA preferred.
  • the thickness of the entire plate can be as well as the vertical distance between the straps, the thickness of the Belts themselves as well as the slope and the angle, the form the inclined webs with the truss, in to some extent to the special needs that come from result of the purpose of the truss panel, adapted become.
  • the plate according to the invention has a thickness measured by the top of the upper outer belt to the bottom of the lower outer belt is approx. 32 mm. Especially for this configuration arises with regard to Thermal insulation particularly advantageous properties.
  • Truss panel characterized in that the Distance between two belts in the vertical direction like this is dimensioned that hollow chambers with laminar Air flow behavior without turbulence occurs.
  • This is implemented in one embodiment, for example, where the vertical distance between two belts each approx. 14 mm from surface to opposite surface is. In the latter case, in conjunction with a total thickness of the plate of approx. 32 mm of the hollow chambers in which the air is free from Turbulence is, so that an optimal thermal insulation effect is achieved.
  • the middle belt is significantly thinner than that outer straps is formed.
  • Half-timbered panel therefore, in that the central belt only approx. 1/3 of the thickness of the top or bottom flange. It has It has been shown that the central belt as a whole is only slightly or not at all about the rigidity of the entire panel has to contribute, whereby its thickness only from is of secondary importance for this purpose.
  • the main function of the Middle belt consists in the formation of compartments, which with a corresponding air flow behavior Guarantee for the excellent thermal insulation of the truss panel according to the invention.
  • the Middle belt the function of an additional Heat transfer resistance, which is a further improvement thermal insulation.
  • Truss panel is particularly preferred Embodiment characterized in that the inclined webs an angle of approximately 60 ° with the Form truss slab. This is much steeper than with the generic known from the prior art Truss panels, in which the inclined webs i. d. R. an angle of approx. 45 ° with the truss panel form. The steeper angle is particularly successful advantageous if the plate is sufficiently rigid corresponding perpendicular support webs dispense.
  • the new thermal insulation regulation of January 1st, 1995 stipulates a k-value ⁇ 1.8 W / m 2 K for buildings with internal temperatures> 19 ° C for glazing components.
  • the truss panel according to the invention is characterized in that the k value of the truss panel is ⁇ 2.4, preferably ⁇ 1.9 and particularly preferably approximately 1.7 W / m 2 K.
  • the half-timbered panel according to the invention thus allows the latest regulation in the corresponding construction sector to be met and significantly undercut, and is thus clearly superior to the twin-wall panels made of thermoplastic plastic which have hitherto not met these requirements.
  • the special geometry of the truss according to the invention gives the truss panels a high level of rigidity with a simultaneous reduction in tension in the webs.
  • a purlin-free installation of up to 1200 N / m 2 snow and wind loads is possible.
  • the previously known twin-wall sheets made of a thermoplastic material must be additionally supported with these loads.
  • the invention can also be particularly advantageous Truss panel different belt and Have web thickness distributions. That is, by preferably thin top and bottom straps on the Plate edges and thin webs in the middle of the plate Basis weight can be further optimized without the Functionality of the entire truss panel restrict. So it is preferably possible to change the thickness of the Outer belts of approx. 1.5 mm in the area of the middle of the panel lower about 1.2 mm in the edge area of the panels, while the web thickness near the plate edges approx. 1 mm may be, the thickness of the webs near the Middle belt can be taken back to about 0.7 mm.
  • the truss panels according to the invention are according to the known processes produced by extrusion. On the The top and / or bottom of the panels can of course suitable coatings for further reinforcement, for improved flame protection, etc., according to the known Process, e.g. B. by coextrusion or lamination, be applied.
  • the plates according to the invention are used on the known areas, such as greenhouses, Building glazing, winter gardens, roofing, for pergolas etc.
  • Truss panel shows a representation of a cross section through a preferred embodiment of the invention Truss panel.
  • 1 denotes the one according to the invention Truss panel.
  • the outer belts 2 and 3 (upper belt 2 and Lower flange 3) are arranged parallel to each other and the Distance A from the top of the top chord to the bottom of the lower chord is approx. 32 mm.
  • About in the middle of the room between the two outer belts 2 and 3 is parallel to a center belt 4 arranged.
  • the two outer belts 2 and 3 are on the edge side by means of outer webs 10 connected and inside they are zigzag shaped webs 5 running between the two outer belts connected with each other.
  • the webs 5 form on the Place 6 an angle B with the truss panel of approx. 60 °.
  • the straps shown in the illustration are approx. 1.5 mm thick (Outer belts 2 and 3) or have a thickness of approx. 0.5 mm on (middle belt 4).
  • the thickness of the oblique Zigzag bars are approx. 1.0 mm.
  • the width D of the plate is approximately 1200 mm, while the theoretical weight per unit area is approximately 6.5 kg / m 2 . This weight per unit area can still be reduced significantly if the edge areas of the belts 2 and 3 are tapered to approx. 1.2 mm and the center areas of the webs to approx. 0.7 mm.
  • E denotes the distance between two belts. This is approx. 14 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Panels For Use In Building Construction (AREA)

Claims (13)

  1. Dalle en treillis en matière thermoplastique comprenant :
    trois ceintures (2-4) parallèles, écartées, parmi lesquelles la ceinture médiane (4) se trouve entre une ceinture supérieure et une ceinture inférieure (2, 3), et,
    entre les ceintures (2-4) des entretoises (5) inclinées pour relier et maintenir l'écartement des ceintures (2-4), les entretoises (5) ayant en coupe transversale un tracé en zigzag entre la ceinture supérieure (2) et la ceinture inférieure (3) ,
    caractérisée en ce que
    la dalle en treillis (1) ne présente, à l'exception des entretoises extérieures (10) du côté du bord, aucune entretoise verticale, perpendiculaire aux ceintures opposées (2, 4) mais seulement des entretoises inclinées (5) et ;
    chaque entretoise inclinée (5) présente exactement un point d'intersection (9) avec la ceinture médiane (4), mais les entretoises inclinées (5) ne se croisent pas.
  2. Dalle en treillis selon la revendication 1,
    caractérisée en ce qu'
    elle est asymétrique par rapport au plan de la ceinture médiane.
  3. Dalle en treillis selon la revendication 1 ou 2,
    caractérisée en ce qu'
    elle est en PVC, verre acrylique ou en polyoléfine.
  4. Dalle en treillis selon la revendication 1 ou 2,
    caractérisée en ce qu'
    elle est en verre acrylique.
  5. Dalle en treillis selon la revendication 4,
    caractérisée en ce que
    l'épaisseur A de la plaque mesurée entre la face supérieure de la ceinture supérieure (2) et la face inférieure de la ceinture inférieure (3) est d'environ 32 mm.
  6. Dalle en treillis selon les revendications 4 ou 5,
    caractérisée en ce que
    la distance E entre deux ceintures dans la direction verticale est dimensionnée pour que les cavités (7, 8) présentent une caractéristique de circulation d'air laminaire sans turbulences.
  7. Dalle en treillis selon la revendication 6,
    caractérisée en ce que
    la distance verticale E entre deux ceintures chaque fois de la surface supérieure et de la surface supérieure opposée est d'environ 14 mm.
  8. Dalle en treillis selon l'une quelconque des revendications 4 à 7,
    caractérisée en ce que
    la ceinture médiane (4) a une épaisseur représentant environ 1/3 de celle de la ceinture supérieure (2) ou de la ceinture inférieure (3).
  9. Dalle en treillis selon la revendication 8,
    caractérisée en ce que
    la ceinture médiane (4) a une épaisseur d'environ 0,5 mm et la ceinture supérieure (2) et la ceinture inférieure (3) chaque fois une épaisseur d'environ 1,5 mm.
  10. Dalle en treillis selon l'une des revendications 4 à 9,
    caractérisée en ce que
    les entretoises inclinées (5) font un angle d'environ 60° avec la dalle en treillis (1).
  11. Dalle en treillis selon l'une des revendications 4 à 10,
    caractérisée en ce que
    le coefficient k de la dalle en treillis (1) est inférieur à 2,4, de préférence inférieur à 1,9 et notamment égal à 1,7 W/m2K.
  12. Dalle en treillis selon l'une des revendications 4 à 11,
    caractérisée en ce qu'
    elle peut être installée sans latte jusqu'à une charge de 1200 N/m2.
  13. Dalle en treillis selon la revendication 4,
    caractérisée en ce que
    l'épaisseur A de la plaque mesurée entre la face supérieure de la ceinture supérieure (2) et la face inférieure de la ceinture inférieure (3) est d'environ 16 mm.
EP96102798A 1995-03-09 1996-02-24 Dalle en treillis ayant des caractéristiques améliorées Expired - Lifetime EP0731233B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19508185 1995-03-09
DE19508185A DE19508185C2 (de) 1995-03-09 1995-03-09 Fachwerkplatte mit verbesserten Eigenschaften

Publications (2)

Publication Number Publication Date
EP0731233A1 EP0731233A1 (fr) 1996-09-11
EP0731233B1 true EP0731233B1 (fr) 2001-01-10

Family

ID=7756012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102798A Expired - Lifetime EP0731233B1 (fr) 1995-03-09 1996-02-24 Dalle en treillis ayant des caractéristiques améliorées

Country Status (2)

Country Link
EP (1) EP0731233B1 (fr)
DE (2) DE19508185C2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5972475A (en) * 1997-10-24 1999-10-26 The Dow Chemical Company Structural sheet design for reduced weight and increased rigidity
US8864017B2 (en) 2011-10-13 2014-10-21 Orbis Corporation Plastic corrugated container with improved fold lines and method and apparatus for making same
US10625916B2 (en) 2013-12-24 2020-04-21 Orbis Corporation Plastic corrugated container with soft score line
US10829265B2 (en) 2013-12-24 2020-11-10 Orbis Corporation Straight consistent body scores on plastic corrugated boxes and a process for making same
EP3486188B1 (fr) 2013-12-24 2021-05-05 Orbis Corporation Flan pour récipient en plastique ondulé
US11643242B2 (en) 2013-12-24 2023-05-09 Orbis Corporation Air vent for welded portion in plastic corrugated material, and process for forming welded portion
US20160102196A1 (en) * 2014-10-10 2016-04-14 Orbis Corporation Plastic Corrugation
CN105040902B (zh) * 2015-06-15 2017-10-27 黄尚进 一种中空保温墙体
ES2964921T3 (es) 2017-02-21 2024-04-10 Orbis Corp Cajas de plástico corrugado con líneas de pliegue marcadas
US11072140B2 (en) 2017-06-20 2021-07-27 Orbis Corporation Balanced process for extrusion of plastic corrugated sheet and subsequent converting into plastic boxes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1504800A1 (de) * 1965-07-06 1969-10-16 Roehm & Haas Gmbh Strangpress-Spritzwerkzeug zur Herstellung von Abdeck- oder Wandplatten aus thermoplastischen Kunststoffen
DE1609661A1 (de) * 1966-02-11 1970-05-06 Hagenburg Otto Heinrich Graf Ebenes oder gekruemmtes Flaechentragwerk,insbesondere aus glasfaserverstaerktem Kunststoff
DE1609760A1 (de) * 1966-04-09 1970-04-16 Passat Maschb Gmbh Plattenfoermiges Bauelement aus Kunststoff
DE3048695A1 (de) * 1980-12-23 1982-07-08 Bayer Ag, 5090 Leverkusen Stegdoppelplatten
DE8705220U1 (de) * 1987-04-08 1987-07-09 Mönch Kunststoff-Technik GmbH, 64732 Bad König Hohlkammerplatte
IL89005A (en) * 1989-01-19 1991-11-21 Polygal Lightweight construction panels with interconnectable edges
DE9110957U1 (de) * 1991-09-04 1991-11-07 Degussa Ag, 6000 Frankfurt Schrägstegmehrfachplatten aus aromatischen Polycarbonaten
DE29503815U1 (de) * 1995-03-09 1995-04-27 Degussa Ag, 60311 Frankfurt Fachwerkplatte mit verbesserten Eigenschaften

Also Published As

Publication number Publication date
DE59606283D1 (de) 2001-02-15
DE19508185C2 (de) 1997-01-16
EP0731233A1 (fr) 1996-09-11
DE19508185A1 (de) 1996-09-12

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