EP0568813B1 - Construction element for the thermal insulation of buildings - Google Patents
Construction element for the thermal insulation of buildings Download PDFInfo
- Publication number
- EP0568813B1 EP0568813B1 EP93105227A EP93105227A EP0568813B1 EP 0568813 B1 EP0568813 B1 EP 0568813B1 EP 93105227 A EP93105227 A EP 93105227A EP 93105227 A EP93105227 A EP 93105227A EP 0568813 B1 EP0568813 B1 EP 0568813B1
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- Prior art keywords
- tube
- insulating body
- constructional element
- element according
- helix
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F19/00—Other details of constructional parts for finishing work on buildings
-
- 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 component for thermal insulation between a building and a cantilevered outer part, consisting of an insulating body to be laid between them with metallic reinforcing bars, which extend transversely to the insulating body, protrude on both sides and are protected against corrosion at least within the insulating body and in the adjacent transition area are, the corrosion protection is formed at least in part of the reinforcing bars by a coating and also an abrasion protection is provided for this coating.
- a component with the features described above is known from GM 90 14 573.
- the reinforcement bars provided with a plastic coating in the insulating body and in the adjacent transition area and frame-shaped brackets are attached to the insulating body to protect it from abrasion. This ensures that local handling of the coating cannot occur when handling the construction site, especially when laying the connection reinforcement.
- the present invention has for its object to develop a new solution for abrasion protection, which is characterized by easier assembly and lower manufacturing costs.
- the new abrasion protection should also improve the corrosion resistance of the reinforcing bars in the endangered transition area.
- the abrasion protection consists of a tube that surrounds the reinforcement bar at least in the transition area, that this tube is spaced by inwardly projecting projections and is arranged to form a ring-like gap on the reinforcement bar and that that over the insulating body projecting ends of the tube have a plurality of openings in the tube wall, which allow the entry of concrete or milk into the gap.
- the tube according to the invention has the advantage that it is much easier and cheaper to manufacture and assemble than the previously known bracket.
- the reinforcing bar through its openings and the spaced arrangement on the reinforcing bar, it ensures that the annular gap between the pipe and the reinforcing bar is filled with concrete or concrete milk, which results in the surface the reinforcement bar sets a basic environment that is particularly favorable for its corrosion protection.
- the described filling of the annular gap is further facilitated by the fact that openings are also provided in the upper circumferential area of the pipe, from which the air displaced by the concrete can escape.
- Insulating bodies with built-in tubes for protection against corrosion of the reinforcing bars are already known.
- the reinforcement bars are not integrated in the insulating body, but are only pulled through the pipes at the construction site afterwards.
- no openings are provided in the tube wall and the radial projections are missing, so that the inventive filling of the gap between the reinforcing element and the tube with concrete or concrete milk is not guaranteed.
- the tube does not act as an abrasion protection for coated reinforcing bars and therefore only protrudes 2 cm on both sides of the insulating body.
- the inwardly projecting projections of the tube are formed by longitudinal ribs.
- the tube can be manufactured inexpensively in the extruder.
- the height of the projections is expediently chosen to be greater than 1.5 mm, in particular from approximately 2 mm to approximately 10 mm. This ensures reliable filling of the pipe with concrete or concrete milk.
- the positioning of the openings in the area of these longitudinal ribs also serves the same purpose, because the flow resistance in the annular gap is thereby reduced. At the same time, this increases the contact area between the reinforcement bar and concrete.
- the size and number of openings are preferably chosen so that they take up a total of about 20% to about 50% of the tube wall area, in particular about 30% to 40%.
- the tube also be provided on its outside with projections, expediently in the form of longitudinal ribs. This provides additional protection against abrasion and the tube can be made very thin-walled despite large openings.
- the support between the reinforcing bar and tube can be done in such a way that the reinforcing bars are connected adjacent to the tube with transverse distributor bars which act as stops, or by the tube with its inwardly projecting projections clamping the reinforcing bar.
- abrasion protection consists of a helix surrounding the reinforcing bar in the form of a helical thread, the pitch of which is dimensioned such that adjacent screw threads are axially spaced apart.
- the helix itself expediently consists of a hard plastic, so that individual gears of the helix cannot be so easily pushed apart when a reinforcing bar rests.
- FIGS. 1 and 2 a series of successive, rectangular insulating bodies 1 made of polystyrene is laid between the components to be insulated. These insulating bodies are traversed in the upper half by a plurality of tension rods 2, in the lower half by corresponding compression rods 3 and, if appropriate, by transverse force rods (not shown further). These reinforcing bars have, at least within the insulating body and in the adjoining transition area, a corrosion-protective coating which is to be protected against abrasion, for example by steel mats or the like that drag along.
- FIGS. 3 and 4 For this purpose, they are not arranged directly in the insulating body 1, but surrounded by a plastic tube 4 or 5, which crosses the insulating body along a recess 7 and is shown in more detail in FIGS. 3 and 4.
- This plastic tube sits coaxially over inner longitudinal ribs 4a or 5a, forming an annular gap 6 on its reinforcement element, in FIGS. 3 and 4 on the tension rod 2.
- the tube wall is provided with numerous openings 4b and 5b, at least at the projecting ends, which are produced by drilling or milling and in particular are also arranged in the region of the longitudinal ribs 4a and 5a. This ensures reliable filling of the annular gap 6 when concreting the components adjacent on both sides of the insulating body 1.
- longitudinal ribs 4c and 5c are also arranged on the outside of the tube. They primarily serve as additional abrasion protection. In addition, they can also support the fastening of the tube in the insulating body if, as shown in FIG. 3, they protrude a little into the insulating body. In this case, it is only necessary to provide a cylindrical through hole in the insulating body 1; when the tube is subsequently pushed in, the longitudinal ribs 4c then dig into the elastically and plastically yielding insulating material of the insulating body 1, as a result of which the tube 4 is retained by itself.
- the tubes can also be glued to the insulating body or attached in some other way.
- Figure 4 differs from Figure 3 essentially in that the recess 7 in the insulating body 1 is not circular cylindrical but has an upper bulge 7a. This bulge is connected to the annular gap 6 via bores 5b and facilitates the escape of air when the concrete milk penetrates into the annular gap.
- Figure 5 shows a tube 4 ', in which the outer ribs 4'c have been partially omitted within the insulating body; they are shown in dashed lines and only begin outside the insulating body 1 up to the pipe end to run. As a result, the tube 4 ′ is held in the insulating body 1 in a form-fitting manner in the axial direction.
- FIG. 6 shows an alternative in which, instead of the tubes 4 and 5, helices 14 and 15 are arranged above the reinforcing bars 2 and 3, respectively.
- these coils allow the reinforcing bars to be reliably encased in concrete, similar to the pipes described above.
- the position of the tension and compression bars 2 and 3 is secured here, as in the exemplary embodiments described above, by distributor bars 8, which are welded to the tension or compression bars on the one hand, and are fastened with solder wire on the other.
- distributor bars 8 which are welded to the tension or compression bars on the one hand, and are fastened with solder wire on the other.
- the different attachment stems from the fact that the reinforcement bars can only be welded to the distribution bars 8 on one side before coating, so that they can then be inserted with the free ends into the insulating body. If the distribution rods were also welded to the free end, the coating would be destroyed again, which is why another fastening is preferred here.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Reinforcement Elements For Buildings (AREA)
- Building Environments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
Description
Die Erfindung betrifft ein Bauelement zur Wärmedämmung zwischen einem Gebäude und einem vorkragenden Außenteil, bestehend aus einem dazwischen zu verlegenden Isolierkörper mit metallischen Bewehrungsstäben, die sich quer zum Isolierkörper durch diesen hindurch erstrecken, beidseits vorstehen und zumindest innerhalb des Isolierkörpers sowie im benachbarten Übergangsbereich gegen Korrosion geschützt sind, wobei der Korrosionsschutz zumindest bei einem Teil der Bewehrungsstäbe durch eine Beschichtung gebildet ist und außerdem ein Abriebschutz für diese Beschichtung vorgesehen ist.The invention relates to a component for thermal insulation between a building and a cantilevered outer part, consisting of an insulating body to be laid between them with metallic reinforcing bars, which extend transversely to the insulating body, protrude on both sides and are protected against corrosion at least within the insulating body and in the adjacent transition area are, the corrosion protection is formed at least in part of the reinforcing bars by a coating and also an abrasion protection is provided for this coating.
Ein wichtiger Gesichtspunkt derartiger Bauelemente ist der Korrosionsschutz der Bewehrungsstäbe im Isolierkörper und im angrenzenden Übergangsbereich, weil dort grundsätzlich mit dem Zutritt von Feuchtigkeit gerechnet werden muß. Man verwendet deshalb in dem gefährdeten Bereich entweder Bewehrungsstäbe aus Edelstahl oder solche aus gewöhnlichem Baustahl, die aber durch eine Beschichtung, beispielsweise aus Kunststoff oder durch Feuerverzinken, gegen Korrosion geschützt sind.An important aspect of such components is the protection against corrosion of the reinforcing bars in the insulating body and in the adjacent transition area, because the ingress of moisture must generally be expected there. Therefore, either reinforcement bars made of stainless steel or those made of ordinary structural steel are used in the endangered area, but are protected against corrosion by a coating, for example made of plastic or by hot-dip galvanizing.
Ein Bauelement mit den eingangs beschriebenen Merkmalen ist durch das GM 90 14 573 bekannt. Dabei sind die Bewehrungsstäbe im Isolierkörper und im benachbarten Übergangsbereich mit einer Kunststoffbeschichtung versehen und als Abriebschutz für diese Beschichtung sind rahmenförmige Bügel am Isolierkörper angebracht. Dadurch ist sichergestellt, daß es beim Hantieren auf der Baustelle, insbesondere beim Verlegen der Anschlußbewehrung nicht zu einem lokalen Abscheuern der Beschichtung kommen kann.A component with the features described above is known from GM 90 14 573. Here are the reinforcement bars provided with a plastic coating in the insulating body and in the adjacent transition area and frame-shaped brackets are attached to the insulating body to protect it from abrasion. This ensures that local handling of the coating cannot occur when handling the construction site, especially when laying the connection reinforcement.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine neue Lösung für den Abriebschutz zu entwickeln, die sich durch einfachere Montage und geringere Herstellkosten auszeichnet. Zugleich soll der neue Abriebschutz aber auch die Korrosionsfestigkeit der Bewehrungsstäbe im gefährdeten Übergangsbereich verbessern.The present invention has for its object to develop a new solution for abrasion protection, which is characterized by easier assembly and lower manufacturing costs. At the same time, the new abrasion protection should also improve the corrosion resistance of the reinforcing bars in the endangered transition area.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Abriebschutz aus einem Rohr besteht, das den Bewehrungsstab zumindest im Übergangsbereich umgibt, daß dieses Rohr durch nach innen ragende Vorsprünge beabstandet ist und unter Bildung eines ringähnlichen Spaltes auf dem Bewehrungsstab angeordnet ist und daß die über den Isolierkörper vorstehenden Enden des Rohres eine Vielzahl von Öffnungen in der Rohrwand aufweisen, die den Eintritt von Beton oder Betonmilch in den Spalt gestatten.This object is achieved in that the abrasion protection consists of a tube that surrounds the reinforcement bar at least in the transition area, that this tube is spaced by inwardly projecting projections and is arranged to form a ring-like gap on the reinforcement bar and that that over the insulating body projecting ends of the tube have a plurality of openings in the tube wall, which allow the entry of concrete or milk into the gap.
Das erfindungsgemäße Rohr bietet zum einen den Vorteil, daß es wesentlich einfacher und kostengünstiger herzustellen wie auch zu montieren ist als die vorbekannten Bügel. Zum anderen sichert es durch seine Öffnungen und die beabstandete Anordnung auf dem Bewehrungsstab das Ausfüllen des Ringspaltes zwischen Rohr und Bewehrungsstab mit Beton oder Betonmilch, wodurch sich an der Oberfläche des Bewehrungsstabes ein basisches Milieu einstellt, das für dessen Korrosionsschutz besonders günstig ist. Das beschriebene Ausfüllen des Ringspaltes wird noch dadurch erleichtert, daß auch Öffnungen im oberen Umfangsbereich des Rohres vorgesehen sind, aus denen die vom Beton verdrängte Luft entweichen kann.The tube according to the invention has the advantage that it is much easier and cheaper to manufacture and assemble than the previously known bracket. On the other hand, through its openings and the spaced arrangement on the reinforcing bar, it ensures that the annular gap between the pipe and the reinforcing bar is filled with concrete or concrete milk, which results in the surface the reinforcement bar sets a basic environment that is particularly favorable for its corrosion protection. The described filling of the annular gap is further facilitated by the fact that openings are also provided in the upper circumferential area of the pipe, from which the air displaced by the concrete can escape.
Zwar sind Isolierkörper mit eingebauten Rohren zum Schutz gegen Korrosion der Bewehrungsstäbe bereits bekannt. Dabei sind aber die Bewehrungsstäbe nicht in den Isolierkörper integriert, sondern sie werden erst nachträglich auf der Baustelle durch die Rohre hindurchgezogen. Außerdem sind in der Rohrwand keine Öffnungen vorgesehen und es fehlt an den radialen Vorsprüngen, so daß das erfindungsgemäße Ausfüllen des Spaltes zwischen Bewehrungselement und Rohr mit Beton oder Betonmilch nicht gewährleistet ist. Im übrigen fungiert das Rohr im bekannten Fall nicht als Abriebschutz für beschichtete Bewehrungsstäbe und steht deshalb nur 2 cm beidseits des Isolierkörpers vor.Insulating bodies with built-in tubes for protection against corrosion of the reinforcing bars are already known. However, the reinforcement bars are not integrated in the insulating body, but are only pulled through the pipes at the construction site afterwards. In addition, no openings are provided in the tube wall and the radial projections are missing, so that the inventive filling of the gap between the reinforcing element and the tube with concrete or concrete milk is not guaranteed. Moreover, in the known case, the tube does not act as an abrasion protection for coated reinforcing bars and therefore only protrudes 2 cm on both sides of the insulating body.
Ähnlich sind die Verhältnisse bei der noch nicht zum Stand der Technik gehörenden Patentanmeldung P 41 03 278. Dort sind die Bewehrungsstäbe zwar in den Isolierkörper integriert, werden aber von einer dicht aufsitzenden Hülse umgeben, so daß sich an der Stabaußenseite ebenfalls kein schützender Betonüberzug bilden kann.The situation is similar in
In vorteilhafter Weiterbildung des Erfindungsgegenstandes empfiehlt es sich, daß die nach innen ragenden Vorsprünge des Rohres durch Längsrippen gebildet sind. Dadurch kann das Rohr kostengünstig im Extruder hergestellt werden.In an advantageous development of the subject matter of the invention, it is recommended that the inwardly projecting projections of the tube are formed by longitudinal ribs. As a result, the tube can be manufactured inexpensively in the extruder.
Die Höhe der Vorsprünge wird zweckmäßig größer als 1,5 mm, insbesondere von etwa 2 mm bis etwa 10 mm, gewählt. Dadurch ist ein zuverlässiges Ausfüllen des Rohres mit Beton oder Betonmilch gewährleistet. Dem gleichen Zweck dient auch die Positionierung der Öffnungen im Bereich dieser Längsrippen, weil sich damit der Durchflußwiderstand im Ringspalt verringert. Gleichzeitig wird dadurch die Kontaktfläche zwischen Bewehrungsstab und Beton vergrößert. Die Größe und Anzahl der Öffnungen werden vorzugsweise so gewählt, daß sie insgesamt etwa 20 % bis etwa 50 % der Rohrwandfläche, insbesondere etwa 30 % bis 40 %, einnehmen.The height of the projections is expediently chosen to be greater than 1.5 mm, in particular from approximately 2 mm to approximately 10 mm. This ensures reliable filling of the pipe with concrete or concrete milk. The positioning of the openings in the area of these longitudinal ribs also serves the same purpose, because the flow resistance in the annular gap is thereby reduced. At the same time, this increases the contact area between the reinforcement bar and concrete. The size and number of openings are preferably chosen so that they take up a total of about 20% to about 50% of the tube wall area, in particular about 30% to 40%.
Damit Beschädigungen der Beschichtung trotz der Wandperforation des Rohres ausgeschlossen sind, empfiehlt es sich, daß das Rohr auch an seiner Außenseite mit Vorsprüngen, zweckmäßig in Form von Längsrippen, versehen ist. Dadurch ergibt sich ein zusätzlicher Abriebschutz und das Rohr kann trotz großflächiger Durchbrechungen sehr dünnwandig ausgeführt werden.So that damage to the coating is ruled out despite the wall perforation of the tube, it is recommended that the tube also be provided on its outside with projections, expediently in the form of longitudinal ribs. This provides additional protection against abrasion and the tube can be made very thin-walled despite large openings.
Die Halterung zwischen Bewehrungsstab und Rohr kann in der Weise erfolgen, daß die Bewehrungsstäbe benachbart zum Rohr mit quer verlaufenden Verteilerstäben verbunden werden, die als Anschläge fungieren, oder indem das Rohr mit seinen nach innen ragenden Vorsprüngen den Bewehrungsstab festklemmt.The support between the reinforcing bar and tube can be done in such a way that the reinforcing bars are connected adjacent to the tube with transverse distributor bars which act as stops, or by the tube with its inwardly projecting projections clamping the reinforcing bar.
Eine andere Lösung, die von dem gleichen Erfindungsgedanken Gebrauch macht, besteht darin, daß der Abriebschutz aus einer den Bewehrungsstab schraubengangförmig umgebenden Wendel besteht, deren Steigung so bemessen ist, daß benachbarte Schraubengänge axial voneinander beabstandet sind.Another solution, which makes use of the same inventive concept, consists in the fact that the abrasion protection consists of a helix surrounding the reinforcing bar in the form of a helical thread, the pitch of which is dimensioned such that adjacent screw threads are axially spaced apart.
Man erhält dadurch einen nahezu gleichwertigen Abriebschutz wie bei dem zuvor beschriebenen Rohr mit Durchbrechungen. Bei der Distanzierung der aufeinanderfolgenden Schraubengänge ist lediglich zu beachten, daß ihr Abstand auf jeden Fall deutlich kleiner ist als der Durchmesser eines Bewehrungsstabes, damit beim Hantieren auf der Baustelle kein Bewehrungsstab in den Zwischenraum der Schraubengänge hineinrutschen und die Beschichtung beschädigen kann.This gives almost equivalent abrasion protection to the previously described pipe with openings. When spacing the successive screw threads, it is only necessary to ensure that their spacing is in any case significantly smaller than the diameter of a reinforcing bar, so that when working on the construction site, no reinforcing bars slip into the space between the screw threads and can damage the coating.
Um das erwünschte Eindringen des Betons zwischen Wendel und Bewehrungsstab zu begünstigen, empfiehlt es sich, den Innendurchmesser der Wendel mehrere Millimeter größer zu wählen als den Außendurchmesser des in ihr verlaufenden Bewehrungsstabes.In order to promote the desired penetration of the concrete between the helix and the reinforcing bar, it is advisable to choose the inner diameter of the helix several millimeters larger than the outer diameter of the reinforcing bar running in it.
Die Wendel selbst besteht zweckmäßig aus einem harten Kunststoff, damit sich einzelne Gänge der Wendel beim Aufliegen eines Bewehrungsstabes nicht so leicht auseinanderdrücken lassen. Es liegt aber auch im Rahmen der Erfindung, die Wendel aus Metall herzustellen.The helix itself expediently consists of a hard plastic, so that individual gears of the helix cannot be so easily pushed apart when a reinforcing bar rests. However, it is also within the scope of the invention to produce the coil from metal.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der Zeichnung; dabei zeigt
Figur 1- den erfindungsgemäßen Isolierkörper im Grundriß;
Figur 2- einen Querschnitt längs der Linie II-II in
Figur 1; Figur 3- einen vergrößerten Querschnitt längs der Linie III-III in
Figur 1; Figur 4- den gleichen Schnitt wie
Figur 3 bei einer alternativen Bauform; Figur 5- den gleichen Schnitt wie
Figur 3 bei einer weiteren Alternative und Figur 6- einen Schnitt wie
Figur 2 bei einem Abriebschutz in Form einer Wendel.
- Figure 1
- the insulating body according to the invention in plan;
- Figure 2
- a cross-section along the line II-II in Figure 1;
- Figure 3
- an enlarged cross section along the line III-III in Figure 1;
- Figure 4
- the same section as Figure 3 in an alternative design;
- Figure 5
- the same section as Figure 3 in a further alternative and
- Figure 6
- a section like Figure 2 in an abrasion protection in the form of a coil.
Gemäß den Figuren 1 und 2 wird zwischen den zu isolierenden Bauteilen eine Reihe aufeinanderfolgender, rechteckiger Isolierkörper 1 aus Polystyrol verlegt. Diese Isolierkörper werden in der oberen Hälfte von mehreren Zugstäben 2, in der unteren Hälfte von entsprechenden Druckstäben 3 und gegebenenfalls noch von nicht weiter dargestellten Querkraftstäben durchquert. Diese Bewehrungsstäbe weisen zumindest innerhalb des Isolierkörpers und im angrenzenden Übergangsbereich eine korrosionsschützende Beschichtung auf, die gegen Abscheuern - etwa durch entlangschleifende Stahlmatten oder dergleichen - geschützt werden soll.According to FIGS. 1 and 2, a series of successive, rectangular
Zu diesem Zweck sind sie nicht unmittelbar im Isolierkörper 1 angeordnet, sondern von einem Kunststoffrohr 4 oder 5 umgeben, das den Isolierkörper längs einer Ausnehmung 7 durchquert und in Figur 3 und 4 näher dargestellt ist. Dieses Kunststoffrohr sitzt über innere Längsrippen 4a bzw. 5a koaxial unter Bildung eines Ringspaltes 6 auf seinem Bewehrungselement, in Figur 3 und 4 auf dem Zugstab 2.For this purpose, they are not arranged directly in the
Außerdem ist die Rohrwandung zumindest an den überstehenden Enden mit zahlreichen Öffnungen 4b bzw. 5b versehen, die durch Bohren oder Ausfräsen hergestellt werden und insbesondere auch im Bereich der Längsrippen 4a und 5a angeordnet sind. Damit ist ein zuverlässiges Ausfüllen des Ringspaltes 6 beim Betonieren der beidseits des Isolierkörpers 1 angrenzenden Bauteile gewährleistet.In addition, the tube wall is provided with
Schließlich sind auch auf der Außenseite des Rohres Längsrippen 4c bzw. 5c angeordnet. Sie dienen in erster Linie als zusätzlicher Abriebschutz. Daneben können sie auch die Befestigung des Rohres im Isolierkörper unterstützen, wenn sie, wie in Figur 3 dargestellt, ein Stück in den Isolierkörper hineinragen. In diesem Fall braucht man im Isolierkörper 1 nur ein zylindrisches Durchgangsloch vorzusehen; beim anschließenden Hineindrücken des Rohres graben sich dann die Längsrippen 4c in das elastisch und plastisch nachgebende Isoliermaterial des Isolierkörpers 1 hinein, wodurch das Rohr 4 von selbst festgehalten wird. Stattdessen oder zusätzlich können die Rohre aber auch mit dem Isolierkörper verklebt oder auf andere Weise befestigt werden.Finally,
Figur 4 unterscheidet sich von Figur 3 im wesentlichen dadurch, daß die Ausnehmung 7 im Isolierkörper 1 nicht kreiszylindrisch ist sondern eine obere Ausbuchtung 7a aufweist. Diese Ausbuchtung steht über Bohrungen 5b mit dem Ringspalt 6 in Verbindung und erleichtert das Entweichen von Luft, wenn die Betonmilch in den Ringspalt eindringt.Figure 4 differs from Figure 3 essentially in that the
Figur 5 zeigt ein Rohr 4', bei dem die Außenrippen 4'c innerhalb des Isolierkörpers teilweise weggelassen worden sind; sie sind gestrichelt dargestellt und beginnen erst außerhalb des Isolierkörpers 1 jeweils bis zum Rohrende zu laufen. Dadurch ist das Rohr 4' in Axialrichtung formschlüssig im Isolierkörper 1 gehalten.Figure 5 shows a tube 4 ', in which the outer ribs 4'c have been partially omitted within the insulating body; they are shown in dashed lines and only begin outside the insulating
Selbstverständlich kann man innerhalb des Isolierkörpers 1 auch ganz auf die Außenrippen 4c oder 4'c verzichten.Of course, one can completely do without the
Figur 6 zeigt eine Alternative, bei der anstelle der Rohre 4 und 5 Wendeln 14 und 15 über den Bewehrungsstäben 2 bzw. 3 angeordnet sind.FIG. 6 shows an alternative in which, instead of the
Diese Wendeln erlauben durch ihren radialen Abstand gegenüber den Bewehrungsstäben sowie durch den axialen Zwischenraum zwischen benachbarten Windungen eine zuverlässige Ummantelung der Bewehrungsstäbe durch Beton ähnlich wie bei den zuvor beschriebenen Rohren.Due to their radial spacing relative to the reinforcing bars and the axial space between adjacent turns, these coils allow the reinforcing bars to be reliably encased in concrete, similar to the pipes described above.
Die Lagesicherung der Zug- und Druckstäbe 2 bzw. 3 erfolgt hier wie auch bei den zuvor beschriebenen Ausführungsbeispielen durch Verteilerstäbe 8, die einerseits an die Zug- oder Druckstäbe angeschweißt, andererseits mit Rödeldraht befestigt werden. Die unterschiedliche Befestigung rührt daher, daß die Bewehrungsstäbe vor dem Beschichten nur an der einen Seite mit den Verteilerstäben 8 verschweißt werden können, damit man sie anschließend mit den freien Enden voraus in den Isolierkörper einschieben kann. Würde man anschließend an dem noch freien Ende ebenfalls die Verteilerstäbe anschweißen, so würde dadurch die Beschichtung wieder zerstört, weshalb man hier eine andere Befestigung vorzieht.The position of the tension and
Selbstverständlich liegt es im Rahmen der Erfindung, die inneren und äußeren Längsrippen der Rohre 4 bzw. 5 nicht axial, sondern schraubengangförmig verlaufen zu lassen.Of course, it is within the scope of the invention not to allow the inner and outer longitudinal ribs of the
Claims (14)
- Constructional element for the provision of thermal insulation between a building and a protruding outer part, consisting of an insulating body (1) to be laid therebetween, the insulating body having metal reinforcement bars (2, 3) which extend across and through the insulating body, project out at both sides and are protected against corrosion at least within the insulating body and in the neighbouring transition region, the corrosion protection being formed in at least a portion of the reinforcement bars (2, 3) by a coating and a protection against abrasion being additionally provided for this coating,
characterised in that
the abrasion protection consists of a tube (4, 5) which surrounds the reinforcement bar (2, 3) at least in the transition region, in that said tube (4, 5) surrounds the reinforcement bar (2, 3) in spaced-apart relationship to form an annular gap (6), the spacing being by means of inwardly projecting protrusions (4a, 5a), and in that the ends of the tube (4, 5) which project beyond the insulating body (1) include a plurality of openings (4b, 5b) in the tube wall allowing the ingress of concrete or concrete grout into the gap. - Constructional element according to Claim 1, characterised in that the protrusions (4a, 5a) are constituted by longitudinal ribs.
- Constructional element according to Claim 1, characterised in that the protrusions are at least 1.5 mm high, and appropriately about 2 mm to about 10 mm high.
- Constructional element according to Claim 1, characterised in that the openings (4b, 5b) are disposed in the region of the longitudinal ribs (4a, 5a).
- Constructional element according to Claim 1, characterised in that the openings (4b, 5b) occupy over 20%, appropriately about 30% to about 50% of the tube-wall surface.
- Constructional element according to Claim 1, characterised in that the tube (4, 5) is provided with protrusions on its outside also, said protrusions being appropriately in the form of longitudinal ribs (4c, 5c).
- Constructional element according to Claim 1, characterised in that the tube (4, 5) projects out on both sides of the insulating body (1) by an amount corresponding to at least the thickness of the insulading body, especially at least 6 cm.
- Constructional element according to Claim 1, characterised in that the tube (4, 5) is composed of synthetic material.
- Constructional element according to Claim 1, characterized in that the tube (4, 5) is lodged or cemented in the insulating body (1).
- Constructional element according to Claim 1, characterised in that the tube (4, 5) is held on its reinforcement bars (2, 3) by means of stops, especially in the form of transversely extending distribution bars (8).
- Constructional element according to Claim 1, characterized in that the tube (4, 5) is lodged against its reinforcement bar (2, 3) by means of inwardly projecting protrusions (4a, 5a).
- Constructional element for the provision of thermal insulation between a building and a protruding outer part, consisting of an insulating body (1) to be laid therebetween, the insulating body having metal reinforcement bars (2, 3) which extend across and through the insulating body (1), project out at both sides and are protected against corrosion at least within the insulating body and in the neighbouring transition region, the corrosion protection being formed at least in a portion of the reinforcement bars (2, 3) by a coating and a protection against abrasion being additionally provided for this coating,
characterised in that
the abrasion protection consists of a helix (14, 15) which surrounds the reinforcement bar (2, 3) in the shape of a thread, the pitch of said helix being chosen such that adjacent convolutions of the helix are axially spaced apart from each other. - Constructional element according to Claim 12, characterised in that the inside diameter of the helix (14, 15) is a few millimeters greater than the outside diameter of the reinforcement bar (2 or 3) which extends in said helix.
- Constructional element according to Claim 12, characterised in that the helix (14, 15) is composed of synthetic material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4214704 | 1992-05-02 | ||
| DE4214704A DE4214704A1 (en) | 1992-05-02 | 1992-05-02 | COMPONENT FOR THERMAL INSULATION IN BUILDINGS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0568813A1 EP0568813A1 (en) | 1993-11-10 |
| EP0568813B1 true EP0568813B1 (en) | 1996-10-23 |
Family
ID=6458128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93105227A Expired - Lifetime EP0568813B1 (en) | 1992-05-02 | 1993-03-30 | Construction element for the thermal insulation of buildings |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0568813B1 (en) |
| AT (1) | ATE144574T1 (en) |
| DE (2) | DE4214704A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4423413A1 (en) * | 1994-07-05 | 1996-01-11 | Schoeck Bauteile Gmbh | Component for thermal insulation in buildings |
| DE19519613C2 (en) * | 1995-05-29 | 2000-04-13 | Sfs Handels Holding Ag Heerbru | Cantilever and / or joint element for reinforced building constructions |
| DE19638538A1 (en) * | 1996-09-20 | 1998-03-26 | Schoeck Bauteile Gmbh | Component for thermal insulation |
| DE19823100C1 (en) * | 1998-05-22 | 2000-01-13 | Sfs Handels Holding Ag Heerbru | Cantilever and / or joint element for reinforced building constructions |
| EP3730708A1 (en) * | 2019-04-23 | 2020-10-28 | HALFEN GmbH | Thermally insulating connection element and thermally insulating component |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3134253A1 (en) * | 1981-08-29 | 1983-03-10 | Reent 4970 Bad Oeynhausen Obernolte | Device for retaining steel reinforcing members |
| DE3422905A1 (en) * | 1984-06-20 | 1986-01-02 | Hansjörg Dipl.-Ing. 7542 Schömberg Braun | Apparatus for connecting a balcony slab and an intermediate floor |
| DE3446006A1 (en) * | 1984-12-17 | 1986-07-03 | Wayss & Freytag Ag, 6000 Frankfurt | Corrosion-protected reinforcing bar for bridging planned structural joints |
| DE3739967A1 (en) * | 1987-11-25 | 1989-06-08 | Meisinger Kg M | STEEL BEAM FOR A CONCRETE PLATE |
| CH676615A5 (en) * | 1988-04-22 | 1991-02-15 | Bau Box Ewiag | |
| CH678076A5 (en) * | 1988-10-27 | 1991-07-31 | Erico Products S A | Insulating collar for reinforced concrete joints - has steel sleeves welded to one side with plastic collars on the other |
| DE4020582A1 (en) * | 1989-07-20 | 1991-01-24 | Schoeck Bauteile Gmbh | COMPONENT FOR THERMAL INSULATION IN BUILDINGS |
| DE9014573U1 (en) * | 1990-10-20 | 1991-02-21 | Schoeck Bauteile Gmbh, 7570 Baden-Baden, De |
-
1992
- 1992-05-02 DE DE4214704A patent/DE4214704A1/en not_active Withdrawn
-
1993
- 1993-03-30 EP EP93105227A patent/EP0568813B1/en not_active Expired - Lifetime
- 1993-03-30 DE DE59304242T patent/DE59304242D1/en not_active Expired - Lifetime
- 1993-03-30 AT AT93105227T patent/ATE144574T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE4214704A1 (en) | 1993-11-04 |
| ATE144574T1 (en) | 1996-11-15 |
| DE59304242D1 (en) | 1996-11-28 |
| EP0568813A1 (en) | 1993-11-10 |
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