EP1790788A2 - Slab-shaped fire protection element - Google Patents

Slab-shaped fire protection element Download PDF

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Publication number
EP1790788A2
EP1790788A2 EP06024125A EP06024125A EP1790788A2 EP 1790788 A2 EP1790788 A2 EP 1790788A2 EP 06024125 A EP06024125 A EP 06024125A EP 06024125 A EP06024125 A EP 06024125A EP 1790788 A2 EP1790788 A2 EP 1790788A2
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EP
European Patent Office
Prior art keywords
fire protection
protection element
fire
wall
ceiling
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.)
Granted
Application number
EP06024125A
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German (de)
French (fr)
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EP1790788A3 (en
EP1790788B1 (en
Inventor
Andreas Schlüter
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.)
Promat GmbH
Original Assignee
Promat GmbH
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Publication date
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Priority to PL06024125T priority Critical patent/PL1790788T3/en
Publication of EP1790788A2 publication Critical patent/EP1790788A2/en
Publication of EP1790788A3 publication Critical patent/EP1790788A3/en
Application granted granted Critical
Publication of EP1790788B1 publication Critical patent/EP1790788B1/en
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    • 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
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped

Definitions

  • the invention relates to a plate-shaped fire protection element for covering walls or ceilings made of concrete with an inserted reinforcement.
  • the invention further relates to a fire protection clothing of a wall and / or ceiling made of concrete with an inserted reinforcement, with a plurality of attached to the wall and / or ceiling plate-shaped fire protection elements.
  • Such fire protection elements are used, for example, in tunnels, which consist of concrete, with reinforcing rods or grids made of steel are introduced into the concrete to increase the load capacity.
  • the fire protection elements prevent the concrete from flaking off and thus exposing the supporting reinforcement. This is particularly important insofar as the reinforcing bars or grids fail in case of fire if they exceed a critical temperature.
  • the invention has for its object to provide a cover of walls and / or ceilings, on the one hand provides the proven fire protection available and on the other hand prevents corrosion of the reinforcement.
  • the aforementioned plate-shaped fire protection element according to the invention is characterized by at least one spacer which holds the fire protection element in the mounted state of the fire protection element at a distance from the wall and / or ceiling.
  • the invention is based on the finding that the corrosion is due, inter alia, to chlorides which originate from salts, in particular spreading salts, which are applied by spraying water. In question are also substances from car exhaust, which lead to corrosion.
  • the chlorides penetrate into the concrete without fire protection elements or by conventionally arranged fire protection elements and thus come into contact with the reinforcement.
  • a spacer associated with the fire protection elements is provided to minimize the above-described penetration process.
  • the fire protection elements are therefore no longer - as conventional - applied directly, so without clearance, on the (concrete) walls and / or ceilings, but at a distance to these. This further complicates the path of aggressive chlorides and other harmful substances to the wall.
  • the at least one spacer is connected to the fire protection element.
  • a bond is connected to the fire protection element.
  • glands are also possible, albeit more complex, and are mounted in such a simple manner to the walls and / or ceilings.
  • the spacer made of plastic, in particular rubber.
  • this offers manufacturing advantages; Plastic spacers are namely easy to produce, for example by injection molding.
  • the material plastic offers a certain flexibility.
  • the spacers may also be made of other, preferably corrosion-resistant, materials.
  • the shape of the spacers can be designed arbitrarily within wide limits. As a particularly advantageous form has been found that is designed like a knob.
  • the individual nubs can be glued or screwed with their leaking flat side on the fire protection element according to the invention.
  • the tip of the respective knob is in the mounted state of the fire protection element on the wall and / or the ceiling.
  • the fire protection element is preferably designed to be open to diffusion, that is, it is designed such that it sucks water from one side, which it emits on the other side again.
  • the material of the fire protection element acts as a filter for any substances in the water and causing a metal corrosion, such as chlorides.
  • the fire protection element according to the invention can also be referred to as a "sucking" fire protection element, which filters out the substances present in the water, for example spray water, and which cause metal and / or steel corrosion.
  • the fire protection element according to the invention mounted in front of a steel-proven concrete wall or ceiling acts as a corrosion barrier.
  • the object is achieved according to the invention in the above-mentioned fire protection clothing further characterized in that spacers are arranged between the fire protection element and the wall and / or ceiling, which keep the fire protection elements at a distance from the wall and / or ceiling.
  • the fire protection system for walls and / or ceilings made of reinforced concrete, which consists on the one hand of a fire protection clothing formed from fire protection elements, and on the other hand of a concrete cover of the supporting reinforcement.
  • a reliable protection of the wall and / or ceiling is given with the fire protection system, so that there is no flaking of concrete in case of fire, which can be up to the reinforcement, which would be greatly weakened and thus would be a collapse of the tunnel.
  • Fig. 1 shows a schematic representation of a sectional view of a tunnel. This has a tunnel cross section 1, a road surface 2 and concrete walls and / or ceilings 3. Within the concrete walls 3 are - also schematically shown - 4 reinforcements arranged.
  • the reinforcements 4 increase the load-bearing capacity of the concrete walls or ceilings 3. They can for example consist of steel bars or grids.
  • 3 plate-shaped fire protection elements 5 are applied to the concrete wall and / or ceiling. These protect the concrete and in particular the underlying reinforcements 4 in case of fire. It has been shown that the occurring in case of fire, large heat in unprotected tunnel walls and / or ceilings can lead to chipping of the concrete to the reinforcements 4, which carries the risk that the reinforcements 4 fail and thus their supportive function to lose. In extreme cases, it can lead to a collapse of the tunnel.
  • the fire protection panels are applied directly to the concrete walls and / or ceilings, as indicated in Fig. 2 by a screw 6.
  • this has meant that chlorides from salts or other corrosion-causing substances can penetrate through the fire protection panels 5 into the concrete wall and there attack the reinforcements 4.
  • a plurality of spacers 7 are applied in the illustrated embodiment to the respective fire protection element, of which a spacer 7 is shown in a sectional view in FIG. 3.
  • the spacer 7 is formed like a knob, wherein it is glued with its expiring ends 8 on the fire protection element 5. With its tip 9 it is supported against the concrete wall and / or ceiling 3.
  • a gap 10 is formed between the fire protection element 5 and the concrete wall and / or ceiling 3, which prevents a "wandering" of the chlorides and other aggressive substances into the concrete wall and / or ceiling. This is especially true when the gap 10 allows ventilation of the fire protection element 5.
  • a spacer 7 is shown.
  • a plurality of spacers may be arranged on a fire protection element.
  • Through the spacer through the fire protection element 5 is connected via a screw or dowel 11 with the concrete wall.
  • the respective spacers 7 through the screw 11 on the fire protection element 5 assure, so that optionally a bond or other attachment can be omitted.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

The plate shaped fire protection element (5) has a cover with armoring. A spacer (7) maintains a distance between fire protection elements and the wall or ceiling while in installed condition of the fire protection element. The spacer is made of plastic material in knob shape and the space provides ventilation. An independent claim is also included for the fire protection clothing.

Description

Die Erfindung betrifft ein plattenförmiges Brandschutzelement zur Abdeckung von Wänden oder Decken aus Beton mit einer eingebrachten Bewehrung.The invention relates to a plate-shaped fire protection element for covering walls or ceilings made of concrete with an inserted reinforcement.

Die Erfindung betrifft ferner eine Brandschutzbekleidung einer Wand und/oder Decke aus Beton mit einer eingebrachten Bewehrung, mit einer Mehrzahl von an der Wand und/oder Decke angebrachten plattenförmigen Brandschutzelementen.The invention further relates to a fire protection clothing of a wall and / or ceiling made of concrete with an inserted reinforcement, with a plurality of attached to the wall and / or ceiling plate-shaped fire protection elements.

Derartige Brandschutzelemente kommen beispielsweise in Tunnelröhren zum Einsatz, die aus Beton bestehen, wobei zur Erhöhung der Tragkraft Bewehrungsstäbe oder -gitter aus Stahl in den Beton eingebracht sind. Die Brandschutzelemente verhindern im Brandfall ein Abplatzen des Betons und damit ein Freilegen der tragenden Bewehrung. Dies ist insoweit besonders wichtig, als die Bewehrungsstäbe oder -gitter im Brandfall versagen, wenn sie eine kritische Temperatur überschreiten.Such fire protection elements are used, for example, in tunnels, which consist of concrete, with reinforcing rods or grids made of steel are introduced into the concrete to increase the load capacity. In the event of fire, the fire protection elements prevent the concrete from flaking off and thus exposing the supporting reinforcement. This is particularly important insofar as the reinforcing bars or grids fail in case of fire if they exceed a critical temperature.

Es wurde festgestellt, daß die eingebrachte tragende Bewehrung einem Korrosionsvorgang unterliegt. Dadurch werden die Stahlstäbe oder -gitter geschwächt. Es besteht die Gefahr, daß durch den Korrosionsvorgang die Stützkonstruktion mit der Zeit versagt.It was found that the applied load-bearing reinforcement is subject to a corrosion process. As a result, the steel bars or grids are weakened. There is a risk that the supporting structure will fail over time due to the corrosion process.

Der Erfindung liegt die Aufgabe zugrunde, eine Abdeckung von Wänden und/oder Decken zu schaffen, die einerseits den bewährten Brandschutz zur Verfügung stellt und andererseits eine Korrosion der Bewehrung verhindert.The invention has for its object to provide a cover of walls and / or ceilings, on the one hand provides the proven fire protection available and on the other hand prevents corrosion of the reinforcement.

Zur Lösung dieser Aufgabe ist das eingangs genannte plattenförmige Brandschutzelement erfindungsgemäß gekennzeichnet durch mindestens einen Abstandshalter, der im montierten Zustand des Brandschutzelements das Brandschutzelement im Abstand zu der Wand und/oder Decke hält.To solve this problem, the aforementioned plate-shaped fire protection element according to the invention is characterized by at least one spacer which holds the fire protection element in the mounted state of the fire protection element at a distance from the wall and / or ceiling.

Der Erfindung liegt die Erkenntnis zugrunde, daß die Korrosion unter anderem auf Chloride zurückzuführen ist, die aus Salzen, insbesondere Streusalzen, stammen, die durch Spritzwasser aufgebracht werden. In Frage kommen auch Stoffe aus Autoabgasen, die zur Korrosion führen. Die Chloride dringen ohne Brandschutzelemente oder durch auf herkömmliche Weise angeordnete Brandschutzelemente in den Beton ein und gelangen so in Kontakt mit der Bewehrung.The invention is based on the finding that the corrosion is due, inter alia, to chlorides which originate from salts, in particular spreading salts, which are applied by spraying water. In question are also substances from car exhaust, which lead to corrosion. The chlorides penetrate into the concrete without fire protection elements or by conventionally arranged fire protection elements and thus come into contact with the reinforcement.

Erfindungsgemäß ist zur Minimierung des zuvor geschilderten Eindringvorgangs ein den Brandschutzelementen zugeordneter Abstandshalter vorgesehen. Die Brandschutzelemente werden also nicht mehr - wie herkömmlich - direkt, also ohne Abstand, auf den (Beton)-Wänden und/oder Decken aufgebracht, sondern im Abstand zu diesen. Dadurch wird der Weg der aggressiven Chloride und anderer schädlicher Stoffe zu der Wand zusätzlich erschwert. Es entsteht vorteilhafterweise eine Hinterlüftung der Brandschutzelemente, die eine Korrosion verhindert.According to the invention, a spacer associated with the fire protection elements is provided to minimize the above-described penetration process. The fire protection elements are therefore no longer - as conventional - applied directly, so without clearance, on the (concrete) walls and / or ceilings, but at a distance to these. This further complicates the path of aggressive chlorides and other harmful substances to the wall. There is advantageously a rear ventilation of the fire protection elements, which prevents corrosion.

Vorzugsweise ist der mindestens eine Abstandshalter mit dem Brandschutzelement verbunden. In Frage kommt im einfachsten Fall eine Verklebung. Gleichermaßen möglich, wenn auch aufwendiger, sind Verschraubungen. Die Brandschutzelemente sind also bereits herstellerseitig mit den Abstandshaltern ausgestattet und werden derart in einfacher Weise an den Wänden und/oder Decken angebracht.Preferably, the at least one spacer is connected to the fire protection element. In question comes in the simplest case, a bond. Equally possible, albeit more complex, are glands. The fire protection elements are thus already factory-equipped with the spacers and are mounted in such a simple manner to the walls and / or ceilings.

In Weiterbildung der Erfindung wird vorgeschlagen, daß der Abstandshalter aus Kunststoff, insbesondere Gummi besteht. Zum einen bietet dies herstellungstechnische Vorteile; Kunststoff-Abstandshalter sind nämlich beispielsweise im Spritzgießverfahren einfach herzustellen. Zum anderen bietet das Material Kunststoff eine gewisse Flexibilität. Auch wenn also die zu bekleidende Wand und/oder Decke Unebenheiten aufweist, bedeckt die erfindungsgemäße Brandschutzplatte dennoch insoweit vollflächig mit Abstand die Wand und/oder Decke. Es wird darauf hingewiesen, daß die Abstandshalter auch aus anderen, vorzugsweise korrosionsfesten, Materialien hergestellt sein können.In a further development of the invention it is proposed that the spacer made of plastic, in particular rubber. On the one hand, this offers manufacturing advantages; Plastic spacers are namely easy to produce, for example by injection molding. On the other hand, the material plastic offers a certain flexibility. Thus, even if the wall and / or ceiling to be clad has unevenness, the fire protection panel according to the invention nevertheless covers the wall and / or ceiling over the whole area at a distance. It should be noted that the spacers may also be made of other, preferably corrosion-resistant, materials.

Die Form der Abstandshalter ist in weiten Grenzen beliebig gestaltbar. Als besonders vorteilhaft hat sich eine Form herausgestellt, die noppenartig ausgebildet ist. Die einzelnen Noppen können mit ihrer auslaufenden Flachseite auf das erfindungsgemäße Brandschutzelement aufgeklebt oder aufgeschraubt sein. Die Spitze der jeweiligen Noppe liegt im befestigten Zustand des Brandschutzelements an der Wand und/oder der Decke an.The shape of the spacers can be designed arbitrarily within wide limits. As a particularly advantageous form has been found that is designed like a knob. The individual nubs can be glued or screwed with their leaking flat side on the fire protection element according to the invention. The tip of the respective knob is in the mounted state of the fire protection element on the wall and / or the ceiling.

Es sollte sichergestellt sein, daß zwischen dem jeweiligen plattenförmigen Brandschutzelement und der Wand und/oder Decke eine Luftschicht verbleibt. Durch eine Hinterlüftung des Brandschutzelements wird ein Übergang der Chloride und sonstiger Korrosion verursachender Stoffe verhindert. In diesem Zusammenhang wird vorgeschlagen, daß eine Mehrzahl von Abstandshaltern über das Brandschutzelement verteilt sind, wobei sie zwischen sich einen Luftraum definieren.It should be ensured that an air layer remains between the respective plate-shaped fire protection element and the wall and / or ceiling. By a rear ventilation of the fire protection element, a transition of the chlorides and other corrosion-causing substances is prevented. In this connection, it is proposed that a plurality of spacers are distributed over the fire protection element, defining an air space between them.

Das Brandschutzelement ist bevorzugterweise diffusionsoffen ausgebildet, das heißt es ist derart ausgebildet, daß es von seiner einen Seite her Wasser ansaugt, welches es über die andere Seite wieder abgibt. Dabei wirkt das Material des Brandschutzelementes, aus welchem dieses besteht, als Filter für etwaige im Wasser befindliche und eine Metallkorrosion bewirkende Substanzen, wie zum Beispiel Chloride. Insofern kann das erfindungsgemäße Brandschutzelement auch als "saugendes" Brandschutzelement bezeichnet werden, welches die im Wasser, beispielsweise Spritzwasser befindlichen und eine Metall- und/oder Stahlkorrosion hervorrufenden Substanzen ausfiltert. Insofern wirkt das vor einer stahlbewährten Betonwand oder Decke montierte erfindungsgemäße Brandschutzelement als Korrosionsbarriere.The fire protection element is preferably designed to be open to diffusion, that is, it is designed such that it sucks water from one side, which it emits on the other side again. In this case, the material of the fire protection element, of which this consists, acts as a filter for any substances in the water and causing a metal corrosion, such as chlorides. In this respect, the fire protection element according to the invention can also be referred to as a "sucking" fire protection element, which filters out the substances present in the water, for example spray water, and which cause metal and / or steel corrosion. In this respect, the fire protection element according to the invention mounted in front of a steel-proven concrete wall or ceiling acts as a corrosion barrier.

Die Aufgabe wird bei der eingangs genannten Brandschutzbekleidung erfindungsgemäß ferner dadurch gelöst, daß zwischen dem Brandschutzelement und der Wand und/oder Decke Abstandshalter angeordnet sind, die die Brandschutzelemente auf Abstand zu der Wand und/oder Decke halten.The object is achieved according to the invention in the above-mentioned fire protection clothing further characterized in that spacers are arranged between the fire protection element and the wall and / or ceiling, which keep the fire protection elements at a distance from the wall and / or ceiling.

Bisher verlangten Normen bei Tunnelinnenschalen und Zwischendecken eine Betondeckung der tragenden Bewehrung von 60 mm zum Verkehrsraum. Darüber hinaus konnte vorgesehen sein, daß innerhalb der Betondeckung eine verzinkte Mattenbewehrung mit einer eigenen Betondeckung von 20 mm sein muß. Die Erfindung schafft hier Abhilfe. Erfindungsgemäß kann die zusätzliche Mattenbewehrung entfallen. Darüber hinaus kann die Dicke der Betondeckung kleiner gehalten werden als im Stand der Technik, nämlich zwischen 40 und 60 mm, wie es in wesentlicher Weiterbildung der Erfindung vorgeschlagen wird.Previously, standards for tunnel inner shells and false ceilings required a concrete cover of the supporting reinforcement of 60 mm to the traffic area. In addition, it could be provided that within the concrete cover a galvanized mat reinforcement must be with its own concrete cover of 20 mm. The invention provides a remedy. According to the invention, the additional mat reinforcement can be omitted. In addition, the thickness of the concrete cover be kept smaller than in the prior art, namely between 40 and 60 mm, as proposed in essential development of the invention.

Es ist somit möglich, ein kostengünstiges Brandschutzsystem für Wände und/oder Decken aus bewehrtem Beton bereitzustellen, welches zum einen aus einer aus Brandschutzelementen gebildeten Brandschutzbekleidung, und zum anderen aus einer Betondeckung der tragenden Bewehrung besteht. Durch die Ausbildung der Brandschutzbekleidung und ihrer Halterung bezüglich einer Wand und/oder Decke ist eine Reduzierung der Betondeckungsdicke möglich, und die zusätzliche Einbringung von Bewehrungen in die Betondeckung kann entfallen. Daher setzt sich das Brandschutzsystem aus einer Brandschutzbekleidung und einer kostengünstigen und dauerhaften Betondeckung zusammen, welche erfolgreich die Korrosion von Bewehrungen verhindert. Gleichzeitig ist mit dem Brandschutzsystem ein zuverlässiger Schutz der Wand und/oder Decke gegeben, so daß es im Brandfall zu keinen Abplatzungen von Beton kommt, die bis zur Bewehrung erfolgen können, wodurch diese stark geschwächt würde und somit eine Einsturzgefahr des Tunnels bestünde.It is thus possible to provide an inexpensive fire protection system for walls and / or ceilings made of reinforced concrete, which consists on the one hand of a fire protection clothing formed from fire protection elements, and on the other hand of a concrete cover of the supporting reinforcement. The formation of the fire protective clothing and its support with respect to a wall and / or ceiling a reduction of concrete cover thickness is possible, and the additional contribution of reinforcements in the concrete cover can be omitted. Therefore, the fire protection system consists of a fire protection clothing and a cost-effective and durable concrete cover, which successfully prevents the corrosion of reinforcements. At the same time a reliable protection of the wall and / or ceiling is given with the fire protection system, so that there is no flaking of concrete in case of fire, which can be up to the reinforcement, which would be greatly weakened and thus would be a collapse of the tunnel.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.Advantageous developments of the invention are described in the subclaims.

Im folgenden wird die Erfindung im Zusammenhang mit der beigefügten Zeichnung näher erläutert. Die Zeichnung zeigt in:

Fig. 1
in schematischer Darstellung eine Querschnittsansicht eines Tunnels, bei dem die Erfindung bevorzugt Anwendung findet;
Fig. 2
in schematischer Darstellung eine herkömmliche Anordnung von Brandschutzplatten an der Tunnelwand; und
Fig. 3
in schematischer Darstellung eine Schnittansicht eines erfindungsgemäßen Brandschutzelements im montierten Zustand.
In the following the invention will be explained in connection with the accompanying drawings. The drawing shows in:
Fig. 1
a schematic cross-sectional view of a tunnel, in which the invention is preferably used;
Fig. 2
a schematic representation of a conventional arrangement of fire protection panels on the tunnel wall; and
Fig. 3
in a schematic representation of a sectional view of a fire protection element according to the invention in the mounted state.

Fig. 1 zeigt in einer schematischen Darstellung eine Schnittansicht eines Tunnels. Dieser weist einen Tunnelquerschnitt 1, einen Fahrbahnbelag 2 und Betonwände und/oder -decken 3 auf. Innerhalb der Betonwände 3 sind - ebenfalls schematisch dargestellt - Bewehrungen 4 angeordnet.Fig. 1 shows a schematic representation of a sectional view of a tunnel. This has a tunnel cross section 1, a road surface 2 and concrete walls and / or ceilings 3. Within the concrete walls 3 are - also schematically shown - 4 reinforcements arranged.

Die Bewehrungen 4 erhöhen die Tragkraft der Betonwände oder -decken 3. Sie können beispielsweise aus Stahlstangen oder -gittern bestehen.The reinforcements 4 increase the load-bearing capacity of the concrete walls or ceilings 3. They can for example consist of steel bars or grids.

Wie es in Fig. 2 ausschnittsweise dargestellt ist, sind an der Betonwand und/oder -decke 3 plattenförmige Brandschutzelemente 5 aufgebracht. Diese schützen den Beton und insbesondere die dahinterliegenden Bewehrungen 4 im Brandfall. Es hat sich nämlich gezeigt, daß die im Brandfall auftretende große Hitze bei nicht geschützten Tunnelwänden und/oder -decken zu einem Abplatzen des Betons bis hin zu den Bewehrungen 4 kommen kann, was die Gefahr birgt, daß die Bewehrungen 4 versagen und damit ihre Stützfunktion verlieren. Im Extremfall kann es zu einem Einsturz des Tunnels führen.As shown in detail in Fig. 2, 3 plate-shaped fire protection elements 5 are applied to the concrete wall and / or ceiling. These protect the concrete and in particular the underlying reinforcements 4 in case of fire. It has been shown that the occurring in case of fire, large heat in unprotected tunnel walls and / or ceilings can lead to chipping of the concrete to the reinforcements 4, which carries the risk that the reinforcements 4 fail and thus their supportive function to lose. In extreme cases, it can lead to a collapse of the tunnel.

Herkömmlich sind die Brandschutzplatten direkt auf die Betonwände und/oder -decken aufgebracht, wie dies in Fig. 2 durch eine Verschraubung 6 angedeutet ist. Dies hat jedoch dazu geführt, daß Chloride aus Salzen oder sonstige Korrosion verursachende Stoffe durch die Brandschutzplatten 5 hindurch in die Betonwand eindringen können und dort die Bewehrungen 4 angreifen. Zur Optimierung des Korrosionsschutzes sind in der dargestellten Ausführungsform auf das jeweilige Brandschutzelement eine Mehrzahl von Abstandshaltern 7 aufgebracht, von denen ein Abstandshalter 7 in einer Schnittdarstellung in Fig. 3 gezeigt ist.Conventionally, the fire protection panels are applied directly to the concrete walls and / or ceilings, as indicated in Fig. 2 by a screw 6. However, this has meant that chlorides from salts or other corrosion-causing substances can penetrate through the fire protection panels 5 into the concrete wall and there attack the reinforcements 4. To optimize the corrosion protection, a plurality of spacers 7 are applied in the illustrated embodiment to the respective fire protection element, of which a spacer 7 is shown in a sectional view in FIG. 3.

Vorteilhafterweise ist der Abstandshalter 7 noppenartig ausgebildet, wobei er mit seinen auslaufenden Enden 8 auf dem Brandschutzelement 5 aufgeklebt ist. Mit seiner Spitze 9 stützt er sich gegen die Betonwand und/oder -decke 3 ab.Advantageously, the spacer 7 is formed like a knob, wherein it is glued with its expiring ends 8 on the fire protection element 5. With its tip 9 it is supported against the concrete wall and / or ceiling 3.

Durch die erfindungsgemäße Konstruktion entsteht zwischen dem Brandschutzelement 5 und der Betonwand und/oder -decke 3 ein Spalt 10, der ein "Wandern" der Chloride und sonstiger aggressiver Stoffe in die Betonwand und/oder -decke hinein verhindert. Dies gilt insbesondere dann, wenn der Spalt 10 eine Hinterlüftung des Brandschutzelements 5 gestattet.Due to the construction according to the invention, a gap 10 is formed between the fire protection element 5 and the concrete wall and / or ceiling 3, which prevents a "wandering" of the chlorides and other aggressive substances into the concrete wall and / or ceiling. This is especially true when the gap 10 allows ventilation of the fire protection element 5.

In Fig. 3 ist lediglich ein Abstandshalter 7 gezeigt. Selbstverständlich können auf einem Brandschutzelement mehrere Abstandshalter angeordnet sein. Durch den Abstandshalter hindurch ist das Brandschutzelement 5 über eine Verschraubung bzw. Verdübelung 11 mit der Betonwand verbunden. Unter Umständen ist es also möglich, die jeweiligen Abstandshalter 7 durch die Verschraubung 11 auf dem Brandschutzelement 5 (vor-) zusichern, so daß gegebenenfalls eine Verklebung oder sonstige Befestigung entfallen kann.In Fig. 3, only a spacer 7 is shown. Of course, a plurality of spacers may be arranged on a fire protection element. Through the spacer through the fire protection element 5 is connected via a screw or dowel 11 with the concrete wall. Under certain circumstances, it is possible, the respective spacers 7 through the screw 11 on the fire protection element 5 (pre-) assure, so that optionally a bond or other attachment can be omitted.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
TunnelquerschnittTunnel cross section
22
Fahrbahnbelagroadbed
33
Betonwand / -deckeConcrete wall / ceiling
44
Bewehrungreinforcement
55
BrandschutzelementFire protection element
66
Verschraubung / VerdübelungScrew connection / doweling
77
Abstandshalterspacer
88th
Enden des AbstandshaltersEnds of the spacer
99
Spitze des AbstandshaltersTip of the spacer
1010
Spaltecolumn
1111
Verschraubung / VerdübelungScrew connection / doweling

Claims (13)

Plattenförmiges Brandschutzelement (5) zur Abdeckung von Wänden und/oder Decken (3) aus Beton mit einer eingebrachten Bewehrung (4),
gekennzeichnet durch
mindestens einen Abstandshalter (7), der im montierten Zustand des Brandschutzelements (5) das Brandschutzelement im Abstand zu der Wand und/oder Decke (3) hält.Plate-shaped fire protection element (5) for covering walls and / or ceilings (3) made of concrete with an inserted reinforcement (4),
marked by
at least one spacer (7) which holds the fire protection element in the mounted state of the fire protection element (5) at a distance from the wall and / or ceiling (3). Brandschutzelement nach Anspruch 1, dadurch gekennzeichnet, daß der Abstandshalter (7) mit dem Brandschutzelement (5) verbunden, vorzugsweise verklebt, ist.Fire protection element according to claim 1, characterized in that the spacer (7) connected to the fire protection element (5), preferably glued, is. Brandschutzelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Abstandshalter (7) aus Kunststoff, insbesondere Gummi besteht.Fire protection element according to claim 1 or 2, characterized in that the spacer (7) made of plastic, in particular rubber. Brandschutzelement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Abstandshalter (7) noppenartig ausgebildet ist.Fire protection element according to one of claims 1 to 3, characterized in that the spacer (7) is designed knob-like. Brandschutzelement nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß eine Mehrzahl von Abstandshaltern (7) über das Brandschutzelement (5) verteilt sind, wobei sie zwischen sich einen Luftraum definieren.Fire protection element according to one of claims 1 to 4, characterized in that a plurality of spacers (7) are distributed over the fire protection element (5), wherein they define an air space between them. Brandschutzelement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß dieses diffusionsoffen ausgebildet ist.Fire protection element according to one of claims 1 to 5, characterized in that it is designed to be permeable. Brandschutzbekleidung einer Wand und/oder Decke (3) aus Beton mit einer eingebrachten Bewehrung mit einer Mehrzahl von an der Wand und/oder Decke angebrachten plattenförmigen Brandschutzelementen (5), dadurch gekennzeichnet, daß zwischen den Brandschutzelementen (5) und der Wand und/oder Decke eine Hinterlüftung in Form eines Abstands vorgesehen ist, vorzugsweise in Form von Abstandshaltern (7), die die Brandschutzelemente auf Abstand zu der Wand halten.Fire protection clothing of a wall and / or ceiling (3) of concrete with an inserted reinforcement with a plurality of attached to the wall and / or ceiling plate-shaped fire protection elements (5), characterized in that between the fire protection elements (5) and the wall and / or Cover a rear ventilation is provided in the form of a distance, preferably in the form of spacers (7), which keep the fire protection elements at a distance from the wall. Brandschutzbekleidung nach Anspruch 7, dadurch gekennzeichnet, daß die Abstandshalter (7) mit den Brandschutzelementen (5) verbunden, vorzugsweise verklebt, sind.Fire-resistant clothing according to Claim 7, characterized in that the spacers (7) are connected, preferably glued, to the fire-protection elements (5). Brandschutzbekleidung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Abstandshalter (7) aus Kunststoff, insbesondere Gummi bestehen.Fire-resistant clothing according to claim 7 or 8, characterized in that the spacers (7) consist of plastic, in particular rubber. Brandschutzbekleidung nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß die Abstandshalter (7) noppenartig ausgebildet sind.Fire-resistant clothing according to one of Claims 7 to 9, characterized in that the spacers (7) are of knob-like design. Brandschutzbekleidung nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß die Brandschutzelemente (5) an der Wand und/oder Decke festgeschraubt sind, wobei zumindest einige Schrauben durch zugehörige Abstandshalter (7) gehen.Fire-resistant clothing according to one of Claims 7 to 10, characterized in that the fire-protection elements (5) are screwed tight to the wall and / or ceiling, at least some screws passing through associated spacers (7). Brandschutzbekleidung nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß die Brandschutzelemente (5) diffusionsoffen ausgebildet sind.Fire protection clothing according to one of claims 7 to 11, characterized in that the fire protection elements (5) are designed to be open to diffusion. Brandschutzbekleidung nach einem der Ansprüche 6 bis 12, dadurch gekennzeichnet, daß in der Wand und/oder Decke (3) eine Bewehrung (4) eingebracht ist, die mit einer Betondeckung abgedeckt ist, wobei die Betondeckung eine Schichtdicke zwischen ca. 40 und 60 mm aufweist, insbesondere < 60 mm ist.Fire-resistant clothing according to one of claims 6 to 12, characterized in that in the wall and / or ceiling (3) a reinforcement (4) is introduced, which is covered with a concrete cover, wherein the concrete cover has a layer thickness between about 40 and 60 mm has, in particular <60 mm.
EP06024125A 2005-11-24 2006-11-21 Fire protection covering for a concrete wall and/or ceiling Not-in-force EP1790788B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06024125T PL1790788T3 (en) 2005-11-24 2006-11-21 Fire protection covering for a concrete wall and/or ceiling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005018354U DE202005018354U1 (en) 2005-11-24 2005-11-24 Plate-shaped fire protection element

Publications (3)

Publication Number Publication Date
EP1790788A2 true EP1790788A2 (en) 2007-05-30
EP1790788A3 EP1790788A3 (en) 2008-08-20
EP1790788B1 EP1790788B1 (en) 2012-01-04

Family

ID=35854085

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Application Number Title Priority Date Filing Date
EP06024125A Not-in-force EP1790788B1 (en) 2005-11-24 2006-11-21 Fire protection covering for a concrete wall and/or ceiling

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Country Link
EP (1) EP1790788B1 (en)
AT (1) ATE540175T1 (en)
DE (1) DE202005018354U1 (en)
PL (1) PL1790788T3 (en)
RU (1) RU2418139C2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29601777U1 (en) 1996-02-03 1996-08-14 Haack, Alfred, Dr.-Ing., 50933 Köln Fire protection insulation in tunnels and buildings
WO2000073599A1 (en) 1999-06-01 2000-12-07 Austrotherm Gesmbh Insulation system for ceilings

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036865C2 (en) * 1990-11-19 2000-03-02 Trespa Int Bv Ventilated facade cladding
DE19620893A1 (en) * 1996-05-23 1997-11-27 Wolman Gmbh Dr Fire-resistant ventilated facades
US20040068948A1 (en) * 2002-10-03 2004-04-15 Wrass Lawrence J. Fire/party wall system
DE202005008250U1 (en) * 2005-05-23 2005-09-01 Xella Trockenbau-Systeme Gmbh Tunnel lining comprises a frame system for fixing the fire protection plates, and an insulation layer positioned on the fire protection plates in such a way that no thermal loading results from it in cases of fire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29601777U1 (en) 1996-02-03 1996-08-14 Haack, Alfred, Dr.-Ing., 50933 Köln Fire protection insulation in tunnels and buildings
WO2000073599A1 (en) 1999-06-01 2000-12-07 Austrotherm Gesmbh Insulation system for ceilings

Also Published As

Publication number Publication date
DE202005018354U1 (en) 2006-02-09
ATE540175T1 (en) 2012-01-15
PL1790788T3 (en) 2012-08-31
EP1790788A3 (en) 2008-08-20
RU2418139C2 (en) 2011-05-10
RU2006141456A (en) 2008-05-27
EP1790788B1 (en) 2012-01-04

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