EP2447430B1 - Pre-fabricated component for a canteleverd balcony slab - Google Patents
Pre-fabricated component for a canteleverd balcony slab Download PDFInfo
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- EP2447430B1 EP2447430B1 EP20110186807 EP11186807A EP2447430B1 EP 2447430 B1 EP2447430 B1 EP 2447430B1 EP 20110186807 EP20110186807 EP 20110186807 EP 11186807 A EP11186807 A EP 11186807A EP 2447430 B1 EP2447430 B1 EP 2447430B1
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- prefabricated component
- teeth
- balcony
- insulating body
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- 239000004033 plastic Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000004873 anchoring Methods 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 7
- 229920002647 polyamide Polymers 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 6
- 230000009970 fire resistant effect Effects 0.000 claims description 2
- 238000007788 roughening Methods 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 description 9
- 238000009413 insulation Methods 0.000 description 9
- 239000000835 fiber Substances 0.000 description 3
- 239000011343 solid material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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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
- E04B1/003—Balconies; Decks
- E04B1/0038—Anchoring devices specially adapted therefor with means for preventing cold bridging
Definitions
- the invention relates to a prefabricated component as a connection element for a cantilevered balcony slab, with a prefabricated insulating body, which is connected to the length of the insulating body arranged Werner, a prefabricated insulating body, which is connected to the length of the insulating body arranged Werner, a prefabricated insulating body, which is connected to the length of the insulating body arranged Werner, a prefabricated insulating body, which is connected to the length of the insulating body arranged Werner connected or connectable with thrust bearings, which are arranged in recesses in the lower region of the insulating body, and with over Outside of the insulating body beyond projecting anchoring projections.
- Fertigbaumaschine for a projecting balcony slab are for example from the DE 196 52 165 C2 or the DE 10 2007 050 059 A1 known.
- the temperature movement is a very significant load case.
- the balcony expands parallel to the building, while at night it shortens. This constant movement is intensified seasonally.
- the balcony extends from 7.000 m to 7.005 m in summer, ie by a few millimeters and in winter there is a corresponding shortening.
- the ceiling or wall remains lying behind an exterior insulation, without such deformations.
- the actual prefabricated component and thus the connecting element must allow this movement, so be horizontally lubricious, so that the fatigue stress is not increased by the friction to be overcome or even corresponding constraints.
- the weight loads In the vertical direction, the weight loads must be absorbed and gliding in this direction is not possible.
- the external attenuations have been designed for 80 mm to 100 mm.
- the balcony thicknesses are usually 20 cm, so that the previous shear force elements are formed with oblique tensile steel bars.
- the outer insulation and thus the prefabricated thicker so there are very flat inclinations for the oblique rod as a lateral force element, which lead to any useful load more.
- a prefabricated component of the type mentioned is from the EP 0 499 590 A1 out.
- the prefabricated component has the insulating body penetrating tension rods.
- As anchoring projections cross bars are essentially formed, which extend over the entire length of the insulating body and are held by disk-like protruding from the clamping body, the insulating body passing through connectors at a distance from the insulating body.
- EP0499590 discloses a prefabricated component as a connection element for a cantilevered balcony slab, with a prefabricated DämmMech, in the distributed over the length of the insulating body arranged tension rods can be inserted, with thrust bearings, which are arranged in recesses in the lower region of the insulating body and with over the outside of the insulating body also protruding Anchoring projections, wherein the anchoring projections are arranged as arranged in the longitudinal direction of the insulating body to the thrust bearings arranged, projecting from discs plates, and wherein the discs are inserted in over the length of the insulating body distributed slots.
- the invention has for its object to bring about a strict structure of the connection element and to provide the ability to achieve greater insulation thicknesses of the finished component.
- That this task solvent prefabricated component according to the invention is characterized in that the anchoring projections are arranged as in the longitudinal direction of the insulating body to the thrust bearings arranged, protruding from toothed discs teeth and that the toothed discs are used in over the length of the insulating body distributed slots.
- Toothed disks proposed, which are distributed in slots of the insulating body over its length. These toothed pulleys are independent of the thrust bearings and act as lateral force elements and are used in slots that are excluded in Dämm emotions. Here, the toothed discs do not reach to the lower edge of the Insulating body, but sit in slots within the insulating body.
- the invention proposes a strict structure of the connecting element, wherein a separation of the multiaxial stress states is enforced and therefore up to 20 cm insulation thickness is possible.
- the rigid box is dissolved, quasi cut.
- thrust bearing which do not consist of a block, but these pressure bearings are composed of webs and thus are more flexible and can respond better to temperature differences.
- the toothed discs have at least one tooth on each side, both of which are the same size.
- the vertical end face in the area of the larger teeth is designed as a pressure surface to the balcony ceiling.
- the printing area extends from the slice corner to about the middle of the larger tooth.
- the mathematical ratio of this vertical pressure surface to the sum of the horizontal tooth surface corresponds approximately to the square root formed from insulation thickness divided by 80 mm.
- a bore may be provided through which concrete flows, thereby creating a good bond.
- the actual toothed discs are made of plastic and preferably from a polyamide injection molding with finely divided glass fibers.
- the existing plastic pulley is formed like a sheet, d. H. thin and 5 to 12 mm thick. It ends about 3 to 6 cm below the balcony top edge and is not frictionally connected to the actual prefabricated component or the pressure bearing used.
- the balcony-side teeth on the toothed pulleys may be roughened or toothed on their vertical end outside to the balcony, while the teeth are smooth on their top and bottom. Likewise, all the tooth surfaces on the ceiling are smooth.
- the thrust bearings are formed by a plastic grid element and also consist of a polyamide injection molding, wherein the hollow box formed from the plastic grids has a mass or moment of inertia which is horizontally equal to a maximum of 20% of vertical.
- the cavities of the hollow box of the thrust bearing can be filled with fire-resistant material or low-strength injection molding.
- the pressure bearings are generally roughened or toothed to the balcony side.
- the thrust bearings do not extend to the end face of the insulation, d. H. do not quite match the insulation thickness.
- the remaining cavity is later potted with the concrete of the balcony ceiling.
- the distance between thrust bearing and toothed pulley depends on the load conditions. For higher loads, there must be a distance of 2 cm between the lower edge of the thrust bearing as the most heavily loaded point in the bearing and the lower edge of the sprocket.
- the plastic material polyamide injection molding with finely divided glass fibers about 30 to 60 volume percent and due to the grid construction results from the injection molding a direction of the fibers. This causes due to the forced orientation of the fibers an above average increase in strength and Querverformungsdorfkeit.
- the latticed configuration has the further advantage that after the injection process no long cooling times are required, otherwise the homogeneity and thus the strength of the Pressure bearing suffer.
- a thin strip can be manufactured accurately using injection molding or casting.
- the 8 mm thick toothed disc can be advantageously brought into a lattice form by on 5 mm thick solid material bilateral ribs are formed, which continue on the teeth and thicken them.
- the thickening of the disc is advantageously formed at the pressure points of the larger teeth.
- Fig. 1 shows an insulating body 1, which is 60 cm long in the illustrated embodiment to illustrate the invention, has a height of 15 cm, with a balcony thickness of 20 cm and an insulating thickness of 8 cm.
- this insulating body are in slots 13 and 13a spaced from each other a plurality of toothed disks 4 used, their design Fig. 2 and Fig. 4 clearer.
- the representation in Fig. 1 should only show the precast component in general, which serves as a connection element for a projecting balcony plate.
- the slots 13 for the toothed discs 4 are about 2 cm away from the recesses 7.
- the slots 13 a is approximately centrally between the recesses 7, but extends to the lower edge of the insulating body. 1
- a toothed disc 4 is shown, wherein the balcony side with B and the ceiling side is denoted by D.
- the toothed disk 4 has teeth 5 on the balcony side B, while teeth 6 are provided on the ceiling side.
- the upper teeth 5 are designed to project further than the lower teeth 5 and the balcony-side teeth 5 are roughened on its vertical outside, so that a good adhesion is achieved.
- the vertical end faces in the region of the larger teeth 5, 6 are designed as pressure surfaces 10. At the top and bottom of all teeth 5 and all sides of the teeth 6 are smooth.
- the toothed disc 4 is made of a plastic material, preferably polyamide injection molding, and has finely divided glass fibers in a proportion of 30 to 60 volume percent.
- the distance Z the distance between the upper edge of the lower tooth 5 and the lower edge of the lower tooth 6 is designated.
- the insulation thickness here is 160 mm, the height of the toothed disc 120 mm and the distance Z is 15 mm.
- Fig. 1 a shows a horizontal section through the insulating body.
- the thrust bearing 3, 3a, 3b do not reach on the balcony side to the end face of the insulation.
- Fig. 3 are thrust bearing 3, 3a and 3b shown.
- the thrust bearing 3 has a width of 40 mm and height of 40 mm and consists of three vertical disks of 8 mm each and two cover disks.
- Integrated are again two slices.
- the thrust bearing 3a four vertical discs, a center disc and two cover discs are provided.
- the strength of the plastic is about eight to twelve times that of the concrete of the actual ceiling, so that little plastic material is needed and cost-effective production is achieved.
- the dissolution of the cuboid into a hollow mold significantly reduces the rigidity with respect to temperature movements compared with the solid material known in the prior art.
- the vertical surface on the balcony side is interlocked or roughened, creating a centering with the concrete of the balcony which promotes horizontal movement.
- the plastic material consists of a polyamide injection molding with finely divided glass fibers, d. H. 30 to 60 volume percent. Due to the orientation of the fibers caused by injection molding, an above-average increase in strength and transverse deformation capability is achieved. In the cavities of the two thrust bearings 3 and 3a fire protection material can be introduced.
- Thrust bearing 3 b shows a grid element whose outer ring 12 is formed with a higher compressive strength than the core 15th
- a tooth 5a is provided in the upper region of the toothed disc, in which a bore is provided, in which concrete runs concrete or a transverse rod or a bracket can be inserted to the rear wall anchorage. Also in this case, the tops of the teeth are smooth, so that thereby a slide is promoted.
- Fig. 5 shows a material-saving design of the toothed disc with protruding ribs, which continue in the teeth.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
- Joining Of Building Structures In Genera (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
Die Erfindung betrifft ein Fertigbauteil als Anschlusselement für eine auskragende Balkonplatte, mit einem vorgefertigten Dämmkörper, der mit über die Länge des Dämmkörpers verteilt angeordneten Zugstäben verbunden oder verbindbar ist, mit Drucklagern, die in Ausnehmungen im unteren Bereich des Dämmkörpers angeordnet sind, und mit über die Außenseite des Dämmkörpers hinaus vorstehenden Verankerungsvorsprüngen.The invention relates to a prefabricated component as a connection element for a cantilevered balcony slab, with a prefabricated insulating body, which is connected to the length of the insulating body arranged Zugstäben connected or connectable with thrust bearings, which are arranged in recesses in the lower region of the insulating body, and with over Outside of the insulating body beyond projecting anchoring projections.
Fertigbauteile für eine auskragende Balkonplatte sind beispielsweise aus der
Die Beanspruchungen in diesen Fertigbauteilen entstehen aus dem Balkoneigengewicht, der Verkehrslast durch Nutzung sowie der Folge von Temperaturbewegungen.The stresses in these prefabricated components arise from the balcony own weight, the traffic load through use and the result of temperature fluctuations.
Die Temperaturbewegung ist dabei ein sehr bedeutender Lastfall. Tagsüber dehnt sich der Balkon parallel zum Gebäude aus, während er sich nachts verkürzt. Diese ständige Bewegung wird jahreszeitenbedingt verstärkt. Für einen Balkon von 7 m Länge und einer Breite in der Regel zwischen 1,20 und 2,50 m verlängert sich der Balkon im Sommer von 7,000 m auf 7,005 m, also um einige Millimeter und im Winter gibt es eine entsprechende Verkürzung. Über einen Zeitraum von 80 Jahren betrachtet, gibt es über 100.000 solcher Verformungszyklen und das Material des Anschlusselementes wird daher ermüden.The temperature movement is a very significant load case. During the day, the balcony expands parallel to the building, while at night it shortens. This constant movement is intensified seasonally. For a balcony of 7 m length and a width usually between 1.20 and 2.50 m, the balcony extends from 7.000 m to 7.005 m in summer, ie by a few millimeters and in winter there is a corresponding shortening. Over a period of 80 years, there are over 100,000 such deformation cycles, and the material of the connection element will therefore become fatigued.
Während der Balkon sich bewegt, bleibt die Decke oder die Wand, weil hinter einer Außendämmung liegend, ohne derartige Verformungen. Das eigentliche Fertigbauteil und damit das Anschlusselement muss diese Bewegung zulassen, also horizontal gleitfähig sein, damit die Ermüdungsbeanspruchung nicht durch die zu überwindende Reibung oder gar entsprechende Zwänge erhöht wird. In der vertikalen Richtung sind die Gewichtslasten aufzunehmen und ein Gleiten in dieser Richtung ist nicht möglich.As the balcony moves, the ceiling or wall remains lying behind an exterior insulation, without such deformations. The actual prefabricated component and thus the connecting element must allow this movement, so be horizontally lubricious, so that the fatigue stress is not increased by the friction to be overcome or even corresponding constraints. In the vertical direction, the weight loads must be absorbed and gliding in this direction is not possible.
Versuche haben ergeben, dass die in den beiden genannten Literaturstellen beschriebenen Fertigbauteile die Last nur sehr eingeschränkt aufnehmen könnten. Diese Einbauteile sind zu starr, quasi ein steifer Kasten, der bei Temperaturlasten zu gro-βe Spannungen auf sich zieht. Es kommt zum schnellen Versagen. Aus dem gleichzeitigen Wirken der vertikalen Gewichtslasten und der horizontalen Bewegungen kommt es zu ungünstigen mehraxialen Spannungsüberlagerungen. Dies ist für den anschließenden Beton ungünstig, da er unkontrolliert aus unterschiedlichen Richtungen belastet wird.Experiments have shown that the prefabricated components described in the two cited references could absorb the load only very limited. These built-in parts are too rigid, a kind of stiff box, which attracts too much stress under temperature loads. It comes to a quick failure. The simultaneous action of the vertical weight loads and the horizontal movements leads to unfavorable multiaxial stress superimpositions. This is unfavorable for the subsequent concrete because it is loaded uncontrollably from different directions.
Bislang waren die Außendämmungen auf 80 mm bis 100 mm ausgelegt. Die Balkondicken liegen üblicherweise bei 20 cm, so dass die bisherigen Querkraftelemente mit schrägen Zugstäben aus Stahl ausgebildet sind. Wird nun die Außendämmung und damit das Fertigbauteil dicker, so ergeben sich sehr flache Neigungen für den Schrägstab als Querkraftelement, die zu keinem brauchbaren Lastabtrag mehr führen.So far, the external attenuations have been designed for 80 mm to 100 mm. The balcony thicknesses are usually 20 cm, so that the previous shear force elements are formed with oblique tensile steel bars. Now, if the outer insulation and thus the prefabricated thicker, so there are very flat inclinations for the oblique rod as a lateral force element, which lead to any useful load more.
In der
Ein Fertigbauteil der eingangs genannten Art geht aus der
Der Erfindung liegt die Aufgabe zugrunde, eine strenge Gliederung des Anschlusselementes herbeizuführen und die Möglichkeit zu schaffen, größere Dämmdicken des Fertigbauteiles zu erreichen.The invention has for its object to bring about a strict structure of the connection element and to provide the ability to achieve greater insulation thicknesses of the finished component.
Dass diese Aufgabe lösende Fertigbauteil nach der Erfindung ist dadurch gekennzeichnet, dass die Verankerungsvorsprünge als in Längsrichtung des Dämmkörpers zu den Drucklagern versetzt angeordnete, von Zahnscheiben vorstehende Zähne ausgebildet sind und dass die Zahnscheiben in über die Länge des Dämmkörpers verteilte Schlitze eingesetzt sind.That this task solvent prefabricated component according to the invention is characterized in that the anchoring projections are arranged as in the longitudinal direction of the insulating body to the thrust bearings arranged, protruding from toothed discs teeth and that the toothed discs are used in over the length of the insulating body distributed slots.
Gemäß der Erfindung werden zur Verbindung anstelle der bekannten Querkraftstäbe (
Die Erfindung schlägt also eine strenge Gliederung des Anschlusselementes vor, wobei eine Trennung der mehraxialen Spannungszustände erzwungen wird und daher bis zu 20 cm Dämmstoffdicke möglich wird. Der starre Kasten wird aufgelöst, quasi zerschnitten.Thus, the invention proposes a strict structure of the connecting element, wherein a separation of the multiaxial stress states is enforced and therefore up to 20 cm insulation thickness is possible. The rigid box is dissolved, quasi cut.
Zur Lösung der die Erfindung zugrunde liegenden Aufgabe werden auch Drucklager vorgeschlagen, die nicht aus einem Block bestehen, sondern diese Drucklager sind aus Stegen zusammengesetzt und sind dadurch nachgiebiger und können besser auf Temperaturunterschiede reagieren.To solve the problem underlying the invention also thrust bearing are proposed, which do not consist of a block, but these pressure bearings are composed of webs and thus are more flexible and can respond better to temperature differences.
Die Zahnscheiben weisen mindestens einen Zahn an jeder Seite auf, die beide die gleiche Größe aufweisen.The toothed discs have at least one tooth on each side, both of which are the same size.
Gemäß der Erfindung kann aber auch vorgesehen sein, dass auf jeder Seite mindestens zwei Zähne vorhanden sind, wobei dann der obere Zahn zur Balkonseite und der untere Zahn auf der Deckenseite länger ausgebildet sind als die anderen.According to the invention can also be provided that on each side at least two teeth are present, in which case the upper tooth to the balcony side and the lower tooth on the ceiling side are designed to be longer than the others.
Die vertikale Stirnfläche im Bereich der größeren Zähne ist als Druckfläche zur Balkondecke ausgebildet. Die Druckfläche reicht von der Scheibenecke bis etwa zur Mitte des größeren Zahnes. Das mathematische Verhältnis von dieser vertikalen Druckfläche zur Summe der horizontalen Zahnfläche entspricht etwa der Quadratwurzel gebildet aus Dämmstoffdicke dividiert durch 80 mm.The vertical end face in the area of the larger teeth is designed as a pressure surface to the balcony ceiling. The printing area extends from the slice corner to about the middle of the larger tooth. The mathematical ratio of this vertical pressure surface to the sum of the horizontal tooth surface corresponds approximately to the square root formed from insulation thickness divided by 80 mm.
In dem oberen größeren Zahn kann eine Bohrung vorgesehen sein durch die Beton fließt und dadurch eine gute Verbindung schafft. Die eigentlichen Zahnscheiben bestehen aus Kunststoff und zwar vorzugsweise aus einem Polyamid-Spritzguss mit fein verteilten Glasfasern.In the upper larger tooth, a bore may be provided through which concrete flows, thereby creating a good bond. The actual toothed discs are made of plastic and preferably from a polyamide injection molding with finely divided glass fibers.
Die aus Kunststoff bestehende Zahnscheibe ist blechartig ausgebildet, d. h. dünn und zwar 5 bis 12 mm dick. Sie endet etwa 3 bis 6 cm unterhalb der Balkonoberkante und ist nicht kraftschlüssig mit dem eigentlichen Fertigbauteil oder dem eingesetzten Drucklager verbunden.The existing plastic pulley is formed like a sheet, d. H. thin and 5 to 12 mm thick. It ends about 3 to 6 cm below the balcony top edge and is not frictionally connected to the actual prefabricated component or the pressure bearing used.
Die balkonseitigen Zähne an den Zahnscheiben können an ihrer vertikalen Stirn-Außenseite zum Balkon hin aufgeraut oder verzahnt ausgebildet sein, während die Zähne an ihrer Ober- und Unterseite glatt gestaltet sind. Ebenso sind alle deckenseitigen Zahnflächen glatt.The balcony-side teeth on the toothed pulleys may be roughened or toothed on their vertical end outside to the balcony, while the teeth are smooth on their top and bottom. Likewise, all the tooth surfaces on the ceiling are smooth.
Die Drucklager werden durch ein Kunststoffgitterelement gebildet und bestehen ebenfalls aus einem Polyamid-Spritzguss, wobei der aus den Kunststoffgittern gebildete Hohlkasten ein Masse- bzw. Trägheitsmoment aufweist, das horizontal gleich maximal 20 % von Vertikal ist.The thrust bearings are formed by a plastic grid element and also consist of a polyamide injection molding, wherein the hollow box formed from the plastic grids has a mass or moment of inertia which is horizontally equal to a maximum of 20% of vertical.
Die Hohlräume des Hohlkastens des Drucklagers können mit brandbeständigem Material oder niederfestem Spritzguss ausgefüllt sein.The cavities of the hollow box of the thrust bearing can be filled with fire-resistant material or low-strength injection molding.
Die Drucklager sind grundsätzlich zur Balkonseite hin aufgeraut bzw. verzahnt.The pressure bearings are generally roughened or toothed to the balcony side.
Die Drucklager reichen auf der Balkonseite nicht bis zur Stirnfläche der Dämmung, d. h. entsprechen nicht ganz der Dämmstoffdicke. Der verbliebene Hohlraum wird später mit dem Beton der Balkondecke vergossen.On the balcony side, the thrust bearings do not extend to the end face of the insulation, d. H. do not quite match the insulation thickness. The remaining cavity is later potted with the concrete of the balcony ceiling.
Der Abstand zwischen Drucklager und Zahnscheibe hängt von den Belastungsverhältnissen ab. Bei höheren Lasten muss ein Abstand von 2 cm zwischen dem unteren Drucklagerrand als höchst belastete Stelle im Lager und dem unteren Rand der Zahnscheibe vorhanden sein.The distance between thrust bearing and toothed pulley depends on the load conditions. For higher loads, there must be a distance of 2 cm between the lower edge of the thrust bearing as the most heavily loaded point in the bearing and the lower edge of the sprocket.
Vorteilhaft ist das Kunststoffmaterial Polyamid-Spritzguss mit feinteiligen Glasfasern, etwa 30 bis 60 Volumenprozent und infolge der Gitterkonstruktion ergibt sich aus dem Spritzgussvorgang eine Richtung der Fasern. Dies bewirkt infolge der erzwungenen Orientierung der Fasern eine überdurchschnittliche Festigkeitssteigerung und Querverformungsmöglichkeit.Advantageously, the plastic material polyamide injection molding with finely divided glass fibers, about 30 to 60 volume percent and due to the grid construction results from the injection molding a direction of the fibers. This causes due to the forced orientation of the fibers an above average increase in strength and Querverformungsmöglichkeit.
Die gitterförmige Ausbildung hat weiterhin den Vorteil, dass nach dem Spritzvorgang keine langen Auskühlzeiten erforderlich sind, andernfalls würde die Homogenität und damit die Festigkeit des Drucklagers leiden. Ein dünner Streifen lässt sich dagegen im Spritzguss- oder auch Gießverfahren zielsicher herstellen.The latticed configuration has the further advantage that after the injection process no long cooling times are required, otherwise the homogeneity and thus the strength of the Pressure bearing suffer. On the other hand, a thin strip can be manufactured accurately using injection molding or casting.
Daher genügt weniger Kunststoffmaterial, wobei es auch wesentlich ist, dass durch die Auflösung des Körpers in eine Hohlform sich die Steifigkeit gegenüber Temperaturbewegung deutlich gegenüber Vollmaterial reduziert.Therefore, less plastic material is sufficient, and it is also essential that by dissolving the body into a hollow mold, the rigidity against temperature movement is significantly reduced compared to solid material.
Auch kann die 8 mm dicke Zahnscheibe vorteilhaft in eine Gitterform gebracht werden, indem an 5 mm dicken Vollmaterial beidseitige Rippen angeformt sind, die sich an den Zähnen forsetzen und diese verdicken. Die Verdickung der Scheibe entsteht vorteilhaft an den Druckpunkten der größeren Zähne.Also, the 8 mm thick toothed disc can be advantageously brought into a lattice form by on 5 mm thick solid material bilateral ribs are formed, which continue on the teeth and thicken them. The thickening of the disc is advantageously formed at the pressure points of the larger teeth.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen erläutert. Die Zeichnungen zeigen dabei in
- Fig. 1 u. 1a
- die Ansicht eines und einen Schnitt durch einen Dämmkörper, in
- Fig. 2
- eine Zahnscheibe, in
- Fig. 3
- die Ausbildung von Gestaltungsformen für die Drucklager, in
- Fig. 4
- eine Einzelheit einer Zahnscheibe und in
- Fig. 5
- eine abgeänderte Ausführungsform einer Zahnscheibe.
- Fig. 1 u. 1a
- the view of and a section through a Dämmkörper, in
- Fig. 2
- a toothed disc, in
- Fig. 3
- the formation of design forms for the thrust bearing, in
- Fig. 4
- a detail of a toothed disc and in
- Fig. 5
- a modified embodiment of a toothed wheel.
Außerdem sind Aufnahmeräume 7 für die in
Die Schlitze 13 für die Zahnscheiben 4 sind etwa 2 cm von den Ausnehmungen 7 entfernt. Die Schlitze 13 a liegt etwa mittig zwischen den Ausnehmungen 7, reicht aber bis zur unteren Kante des Dämmkörpers 1.The
In
In
Integriert sind noch mal zwei Scheiben. Bei der Ausführungsform des Drucklagers 3a sind vier vertikale Scheiben, eine Mittelscheibe und zwei Deckscheiben vorgesehen.Integrated are again two slices. In the embodiment of the
Die Festigkeit des Kunststoffes ist etwa acht bis zwölf Mal so hoch wie die des Betons der eigentlichen Decke, so dass wenig Kunststoffmaterial benötigt wird und eine kostengünstige Herstellung erreicht wird. Durch die Auflösung des Quaders in eine Hohlform reduziert sich die Steifigkeit gegenüber Temperaturbewegungen deutlich gegenüber dem im Stand der Technik bekannten Vollmaterial.The strength of the plastic is about eight to twelve times that of the concrete of the actual ceiling, so that little plastic material is needed and cost-effective production is achieved. The dissolution of the cuboid into a hollow mold significantly reduces the rigidity with respect to temperature movements compared with the solid material known in the prior art.
Die vertikale Fläche auf der Balkonseite ist verzahnt bzw. aufgeraut, wodurch eine bei horizontaler Bewegung fördernde Zentrierung mit dem Beton des Balkons entsteht.The vertical surface on the balcony side is interlocked or roughened, creating a centering with the concrete of the balcony which promotes horizontal movement.
Auch hier besteht das Kunststoffmaterial aus einem Polyamid-Spritzguss mit fein verteilten Glasfasern, d. h. 30 bis 60 Volumenprozent. Durch die durch den Spritzguss bewirkte Orientierung der Fasern wird eine überdurchschnittliche Festigkeitssteigerung und Querverformungsmöglichkeit erreicht. In die Hohlräume der beiden Drucklager 3 und 3a kann Brandschutzmaterial eingebracht werden.Again, the plastic material consists of a polyamide injection molding with finely divided glass fibers, d. H. 30 to 60 volume percent. Due to the orientation of the fibers caused by injection molding, an above-average increase in strength and transverse deformation capability is achieved. In the cavities of the two
Drucklager 3 b zeigt ein Gitterelement, dessen Außenring 12 mit einer höheren Druckfestigkeit ausgebildet ist als der Kern 15.
Bei der Ausführungsform gemäß
Die Ausführung gemäß
Claims (21)
- Prefabricated component as a connection element for a cantilevered balcony slab, with a prefabricated insulating body (1) into which there can be inserted tension bars (2) which are arranged in a distributed manner over the length of the insulating body (1), with thrust bearings (3, 3a, 3b) having low thermal conductivity and high compressive strength, which are arranged in cutouts (7) in the lower region of the insulating body, and with anchoring projections (5, 6) which protrude beyond the outer side of the insulating body (1), wherein the anchoring projections (5, 6) are designed as teeth (5, 6) which protrude from toothed discs (4) and are arranged in an offset manner with respect to the thrust bearings (3, 3a, 3b) in the longitudinal direction of the insulating body (1), and wherein the toothed discs (4) are inserted into slots (13, 13a) distributed over the length of the insulating body (1).
- Prefabricated component according to Claim 1, characterized in that the thrust bearings (3, 3a, 3b) consist of a plastic mesh element.
- Prefabricated component according to Claim 1, characterized in that at least one tooth (5, 6) is provided on each toothed disc (4) and on each side, wherein these two teeth (5, 6) have approximately the same size.
- Prefabricated component according to Claim 1, characterized in that at least two teeth (5, 6) are provided above one another on each side on each toothed disc (4), wherein the upper tooth (5) and the lower tooth (6) are designed to be longer than the other teeth (5, 6).
- Prefabricated component according to one of Claims 1, 3 and 4, characterized in that the toothed discs (4) consist of plastic.
- Prefabricated component at least according to Claim 5, characterized in that the plastic material of the toothed discs (4) consists of injection-moulded polyamide and/or is reinforced with finely dispersed glass fibres.
- Prefabricated component at least according to Claim 1, characterized in that the balcony-side teeth (5) are designed to be roughened or serrated at their vertical end face.
- Prefabricated component at least according to Claim 1, characterized in that the teeth (5, 6) are designed to be smooth at their upper side and lower side.
- Prefabricated component according to Claim 2, characterized in that the thrust bearing (3, 3a) is set back on the balcony side by about 5-8 mm with respect to the vertical end side of the insulating body.
- Prefabricated component according to Claim 2, characterized in that the strength of the thrust bearing (3, 3a, 3b) is at least eight times as high as the concrete of the balcony ceiling.
- Prefabricated component at least according to Claim 2, characterized in that the plastic material of the thrust bearings (3, 3a, 3b) is injection-moulded polyamide with finely dispersed glass fibres.
- Prefabricated component at least according to Claim 2, characterized in that the thrust bearing (3, 3a, 3b) is designed as a hollow box with a moment of mass or moment of inertia horizontally equal to at most 20% of the vertical.
- Prefabricated component at least according to Claim 12, characterized in that the cavities of the hollow box (3, 3a) formed as a thrust bearing are filled with fire-resistant material.
- Prefabricated component at least according to Claim 2, characterized in that the thrust bearing (3, 3a) has a roughening or serration on the vertical balcony side.
- Prefabricated component according to Claim 1, characterized in that the cutout (7) is closed at the bottom.
- Prefabricated component according to Claim 1, characterized in that the teeth (5, 6) are thicker than the toothed disc (4).
- Prefabricated component according to Claim 1, characterized in that the teeth (5, 6) are designed to be rectangular.
- Prefabricated component according to Claim 1, characterized in that the balcony-side edge of the toothed disc (4) is designed to be shorter or longer than the ceiling-side edge.
- Prefabricated component according to Claim 1, characterized in that the upper edge of the balcony-side tooth/teeth (5) is arranged to be upwardly offset with respect to the lower edge of the corresponding ceiling-side teeth (6) by the dimension Z, which is at least 15 mm.
- Prefabricated component according to Claim 1, characterized in that the toothed disc (4) is designed to be thicker in the region of the pressure surface (10).
- Prefabricated component according to Claim 2, characterized in that the distance between the cutouts (7) and the slots (13) is at least 1 cm.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010060203A DE102010060203A1 (en) | 2010-10-27 | 2010-10-27 | Prefabricated component for a projecting balcony slab |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2447430A2 EP2447430A2 (en) | 2012-05-02 |
EP2447430A3 EP2447430A3 (en) | 2013-08-14 |
EP2447430B1 true EP2447430B1 (en) | 2015-03-18 |
Family
ID=44903115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20110186807 Active EP2447430B1 (en) | 2010-10-27 | 2011-10-26 | Pre-fabricated component for a canteleverd balcony slab |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2447430B1 (en) |
DE (1) | DE102010060203A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2821558B1 (en) * | 2013-07-03 | 2017-09-20 | F.J. Aschwanden AG | Component for the thermally insulated connection of two building sections |
EP3901385A1 (en) * | 2016-02-03 | 2021-10-27 | HALFEN GmbH | Thermally insulating component |
DE102016121491A1 (en) | 2016-11-10 | 2018-05-17 | Dieckhoff Verpackungen Gmbh | Connecting component for a projecting concrete slab |
CH717894A2 (en) * | 2020-09-22 | 2022-03-31 | Peikko Group Oy | Wall component, in particular facade wall component. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE151836T1 (en) * | 1991-02-15 | 1997-05-15 | Reto Bonomo | THERMAL INSULATING CRAFT PLATE CONNECTION ELEMENT AND USE THEREOF |
DE19652165C2 (en) | 1996-12-05 | 1999-06-17 | Syspro Gruppe Betonbauteile E | Prefabricated component for a cantilevered balcony slab |
DE19718021B4 (en) * | 1997-04-29 | 2006-09-14 | Halfen Gmbh & Co. Kommanditgesellschaft | Thermally insulating component |
ATE459764T1 (en) * | 2001-12-20 | 2010-03-15 | Sfs Locher Ag | COLLAR PLATE CONNECTION ELEMENT AND COLLAR PLATE CONNECTION ASSEMBLY HAVING A NUMBER OF SUCH CRAFT PLATE CONNECTION ELEMENTS |
DE502004005013D1 (en) * | 2004-02-11 | 2007-10-31 | Halfen Gmbh | Thermally insulating component |
DE202007019070U1 (en) | 2007-10-19 | 2010-07-29 | Kahmer, Herbert, Dr. | Prefabricated component for a projecting balcony slab |
-
2010
- 2010-10-27 DE DE102010060203A patent/DE102010060203A1/en not_active Withdrawn
-
2011
- 2011-10-26 EP EP20110186807 patent/EP2447430B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2447430A3 (en) | 2013-08-14 |
DE102010060203A1 (en) | 2012-05-03 |
EP2447430A2 (en) | 2012-05-02 |
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