EP0295417A2 - Composite building slab, particularly for sectional false floors - Google Patents
Composite building slab, particularly for sectional false floors Download PDFInfo
- Publication number
- EP0295417A2 EP0295417A2 EP88107389A EP88107389A EP0295417A2 EP 0295417 A2 EP0295417 A2 EP 0295417A2 EP 88107389 A EP88107389 A EP 88107389A EP 88107389 A EP88107389 A EP 88107389A EP 0295417 A2 EP0295417 A2 EP 0295417A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tub
- composite building
- building board
- side walls
- corners
- 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
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/024—Sectional false floors, e.g. computer floors
- E04F15/02405—Floor panels
- E04F15/02417—Floor panels made of box-like elements
- E04F15/02423—Floor panels made of box-like elements filled with core material
- E04F15/02429—Floor panels made of box-like elements filled with core material the core material hardening after application
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/008—Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0018—Producing metal-clad stones, such as oven stones
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24322—Composite web or sheet
- Y10T428/24331—Composite web or sheet including nonapertured component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24628—Nonplanar uniform thickness material
- Y10T428/24669—Aligned or parallel nonplanarities
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24777—Edge feature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/24992—Density or compression of components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
Definitions
- the invention relates to a composite building board, in particular for raised floors for support at the corners, consisting of an open top, made of tensile material, preferably sheet steel, and a filling of pressure-resistant material, the density and strength of which can vary within a relatively wide range, and with anchoring means in the tub to achieve the bond between the filling and the tub and a reinforcement connected to the tub bottom.
- a composite building board which is similar to the building board referred to above and which has a tub made of sheet steel which forms the outer reinforcement of the board and a pressure-resistant mass embedded in the tub, usually concrete or anhydrite.
- This tub is manufactured using the deep-drawing process, which has the consequence that the material thickness on its upwardly drawn side walls is less than the material thickness of the tub bottom.
- the load-bearing capacity or resilience of such composite building boards is significantly greater in the middle than in their edge. Therefore, there is a risk that these composite building boards under load, for. B. by driving with a heavy file car, the plate edge always bends more than the center of the plate. This creates a step and each time the file car hits the step, it creates a dynamic load that Repeated occurrence can lead to permanent deformation of the composite building board or even material destruction (cracking in the tub and / or filling).
- the invention has for its object to develop a composite building board with an outer reinforcement trough made of tensile material and a filling of pressure-resistant material such that with the same blast in the middle or at the edges their deflection is practically the same size at these points.
- the above object is achieved in that the reinforcement is provided on the side walls of the trough and is designed in such a way and / or that the density and strength of the filling in the edge region of the composite building board is at least twice as great as compared to the rest of the area towards the center of the board, so that the load-bearing capacity and security of the composite building board against breakage at the edge and in the middle of the board is substantially leveled.
- a composite building board supported at its corners with the features according to the invention has the advantage that its load-bearing capacity in the edge region is matched to the load-bearing capacity in the middle of the board and the previously existing danger with known composite building boards, namely to experience permanent deformation or even material destruction at the edge of the board through appropriate loading, is significantly reduced.
- the invention also makes it easier to meet the requirement in practice than hitherto, according to which the load capacity of a raised floor slab is determined in that the deflection at the weakest point must not be greater than 1/300 of the support distance and, on the other hand, a certain security against breakage is guaranteed must, d. H. that the permissible load is only a part, e.g. B. may correspond to half the breaking load.
- the aforementioned deflection can namely be kept practically the same size at all points in the composite building board according to the invention - assuming an equal load at all these points - preferably the reinforcement on the side walls of the tub is essentially plate-high, so that a correspondingly large moment of inertia receives.
- the invention can also be used in connection with different filler material in order to obtain composite building boards of different weights. This is with regard to the Reduction of manufacturing, freight and assembly costs of great importance.
- the invention enables the production of composite building boards of different weight with correspondingly different load-bearing capacity, but in any case ensures that the load-bearing capacity is practically the same at all points on the composite building board.
- the composite building board has a tub, which is made in one piece from a flat sheet metal plate by bending edge strips between cut corners and welding the abutting edges at the corners of the tub, it is expedient if the edge strips of the flat sheet metal plate are at least doubled in thickness of the tub side walls covers, bends up and welded at their butt edges. In this way it is very easy to achieve a plate-high reinforcement on the side walls of the tub while maintaining the material thickness even in the edge area of the tub bottom.
- the reinforcement by on the sheet metal walls of the tub inside and / or outside, for. B. glued or welded flat material or angle profiles.
- This measure can advantageously be applied to tubs that are manufactured in different ways, including deep drawing.
- Yet another embodiment of the invention is characterized in that the trough is made in two parts from a base plate provided with anchoring means and a profile frame which also forms the reinforced side walls of the trough, the wall thickness of which is at least three times as large as the wall thickness of the floor plate, and that the floor panel with the profile frame by z. B. spot welding is connected.
- a trough, the reinforced side walls of which are formed by a profile frame, and which contains a simple flat floor plate as trough floor is particularly inexpensive to manufacture and leads to a corresponding reduction in costs of the composite building board concerned.
- the edges of the floor panel are additionally deformed to increase the section modulus in the edge area of the building board, the bond effect between the filling made of pressure-resistant material and the tub in the edge area is also advantageously increased at the same time.
- Yet another embodiment of the invention is characterized in that the flat material or the angle profiles for reinforcing the tub side walls in the central region between the corners of the tub have a greater overall height and thus a greater section modulus than the areas adjacent to the corners of the tub. This achieves a reduction in the inherent weight of the composite building board while maintaining the advantages of the invention.
- FIG. 1 a above is shown in section a composite building board (10) which is supported at its four corners on only schematically indicated footrests (11) and z. B. is used to produce a raised floor.
- the composite building board (10) has a trough (3) made of sheet steel with a filling (2) from one pressure-resistant material, e.g. B. concrete or anhydrite.
- the bonding effect between the tub (3) forming the outer reinforcement for the building board (10) and the filling (2) is achieved by anchoring means (4), which in the present case consist of openings with jagged edges (so-called punches) in the tub bottom (5) exist.
- the tub (3) made of sheet steel is manufactured using the deep-drawing process, the tub bottom (5) having the original sheet thickness S 1, while the side walls (6) have a sheet thickness S 2 that is reduced compared to the sheet thickness S 1 due to the deep-drawing process.
- the sectional view of the composite building board (10) schematically shows the deformation of the same under the action of a vertical load P at its edges or in the middle with the board (10) supported only at its four corners. It can be seen that with this known composite building board (10) the deflection hMa in the middle is significantly smaller than the deflection hRa at the edges of the plate. The weakest points of the composite building board (10) are therefore at their edges and determine their resilience, but this is disadvantageous. For the load capacity of raised floor panels, there is an international requirement that the deflection at the weakest point of the panel must not be greater than 1/300 of the support or column distance A.
- FIG. 1 b shows a composite building board (10 g) which corresponds in its external dimensions to the composite building board (10) of FIG. 1 a and is also supported as a double floor board at its four corners on supports (11).
- the composite building board (10 g) has a trough (3 g) designed in accordance with the invention in accordance with the embodiment according to FIG. 2 g, so that under the same load conditions as in the example according to FIG. The middle of the plate is essentially as large as the deflection hRb at the edges of the plate. In other words, the load-bearing capacity of the composite building board (10 g) is practically the same at its edges and in the middle of the board.
- the tub (3 g) (see also FIG.
- a profile frame (from a Z-profile) forms the reinforced side walls (6 g) of the tub (3 g), the thickness S 4 of which is a multiple (at least three times) of the wall thickness S 1 of a floor plate (7), which on the inwardly projecting legs of the profile frame, for. B. is fixed by welding spots (9).
- the bottom plate (7) is provided with the usual anchoring openings (4) for the filling (2) made of pressure-resistant material and it has an additional bevel (7 a) on its four edges, which increases the composite effect and at the same time also the edge area of the composite building board reinforced.
- the filling (2) is of the same density and strength over the entire plate cross section.
- the reinforcement of the side walls (6 g) of the tub (3 g) in relation to the tub floor is in any case dimensioned such that the load-bearing capacity of the composite building board (10 g) is practically the same at its edges and in the middle.
- the composite building board (10 f) shown in FIG. 2 f also contains a trough (3 f) made from two pieces.
- the side walls (6 f) of the tub (3 f) consist of an L-profile frame, the wall thickness S 4 of which is a multiple (at least three times) of the wall thickness S 1 of the floor plate (7).
- This bottom plate (7) is, for. B. attached by welding spots (9) to the inwardly projecting legs of the profile frame and contains anchoring openings (4) for the filling (2), which are also provided in the side walls (6 f) of the tub (3 f).
- the load-bearing capacity of this composite building board (10 f) is at Support at the four corners on their edges and in the middle essentially the same.
- the filling (2) made of pressure-resistant material can have the same density and strength over the entire plate cross-section.
- the composite building board (10 a) according to FIG. 2 a contains a trough (3 a) as external reinforcement for the filling (2) made of pressure-resistant material, in which the wall thickness S 1 of the trough bottom (5) is equal to the wall thickness S 2 of the side walls (6 a) of the tub.
- the leveling of the load-bearing capacity of this composite building board (10 a) at the edge and in the middle of the board when supported at its four corners is done here by statically upgrading its edge area in which the pressure-resistant filling (2) in the edge area (12) has a higher density and has a higher compressive strength than in the rest of the plate cross-section. This is achieved e.g. B. by the fact that the filling (2) originally introduced with a relatively lower density into the tub (3 a) is compressed correspondingly more strongly by pressing pressure in the edge region (12).
- the composite building board shown in Figure 2 b (10 b) consists of a trough (3 b) made of sheet steel and a filling (2) made of pressure-resistant material, for. B. anhydrite.
- the side walls (6 b) of the tub (3 b) are twice as thick as the tub bottom (5).
- This reinforcement of the side walls (6 b) of the tub (3 b) can, for. B. achieve by a manufacturing method, which will be explained with reference to Figures 3 a to 4 c.
- the filling (2) can be of the same density and strength over the entire plate cross section or, preferably in the edge region (12), also a higher density and a higher compressive strength analogous to the exemplary embodiment according to Figure 2a have.
- the side walls of the tub can also be three or four times as thick as the bottom of the tub. Quadruple thickening is preferred.
- the embodiment of a composite building board (10 c) shown in FIG. 2 c comprises a trough (3 c) as external reinforcement, which initially corresponds to that of FIG. 2 a, ie that it has the same wall thickness S 1 at all points.
- the flat material (13) is arranged on the inside on the side walls of the outlet trough, but it can also be attached on the outside and in any case is essentially plate-high.
- the thickness S 3 of the side walls (6 c) in the embodiment according to FIG. 2 c is a multiple of the thickness S 1 of the tub base (5).
- the overall height of the flat material (13) from the tub corners increases steadily towards the center between the corners of the tub and reaches the greatest value in the middle between the tub corners.
- the anchoring with the filling (2) serving openings (4) with inwardly frayed edges (punches) extend in this embodiment through the side walls (6 c) of the tub and also serve to connect the flat material (13) and the Tin walls of the tubs.
- the filling (2) made of pressure-resistant material can again have the same density and strength over the entire plate cross-section.
- the side walls (6 d or 6 e) of the relevant troughs (3 d, 3 e) are reinforced in a manner similar to the exemplary embodiment according to FIG. 2 b, only in the composite building boards (10 d or 10 e) the folded edge strip angled on the outside or inside and additionally used to reinforce the tub side walls (6 d or 6 e).
- the punches (4) can also be used here for connection purposes.
- the composite building board (10 g) shown only in partial section in FIG. 2 g is shown in more detail in FIG. 4.
- This figure shows that the side walls (6 g) of the tub (3 g) are formed from a Z-profile frame, which in turn is composed of four profile pieces (16) which are mitred at their ends (15) and are welded together.
- the profile frame forming the tub side walls (6 f) in the exemplary embodiment according to FIG. 2 f can also be produced in the same way.
- the upturns (7 a) on the base plate (7) or trough base can likewise be provided with openings (4) to further increase the bond effect between the trough (3 g) and the filling (2).
- the sequence of figures 3 a to 3 c illustrates the manufacture of the tub (3 b) for the composite building board (10 b) according to FIG. 2 b, the side walls (6 b) of which have twice the thickness of the tub floor (5).
- the base material for the tub (3 b) is the flat sheet metal blank shown in FIG. 3 a, the external dimensions A 1 and B 1 of which are 4 H greater than the bottom dimensions A 2 and B 2 of the finished tub, which is inclined in FIG. 3 c ( 3 b).
- cutouts (26) are punched out in such a way that edge strips (21) with a transverse dimension 2 H are formed between the punched out corners. Then, according to FIG.
- the edge strips (21) are first folded around bending lines (24 a) and thus the material thickness is doubled before the doubled edge strips are then bent upwards around the bending lines (24 b) until they meet at their ends.
- the finished trough (3 b) is shown in FIG. 3 c with part of the filling (2) made of pressure-resistant material, which has a higher strength on the edges than in the other areas.
- a wide variety of pressure-resistant materials can be used as the filling (2), depending on the requirements for the composite building boards.
- mineral fillers provided in the form of anhydrite or concrete.
- lighter fillings e.g. B. with plastic as a binder (synthetic resin lightweight concrete) or gypsum-bound fillers with light aggregates (z. B. wood chips or perlite).
- the density and the compressive strength of the filling (2) can be varied within wide limits, but the wall thickness S 1 of the tub floor must always be adjusted to the density of the filling (2).
Abstract
Description
Die Erfindung bezieht sich auf eine Verbundbauplatte, insbesondere für Doppelböden zur Auflagerung an den Ecken, bestehend aus einer oben offenen, mit zugfestem Material, vorzugsweise Stahlblech hergestellten Wanne und einer Füllung aus druckfestem Material, dessen Dichte und Festigkeit in einem relativ großen Bereich variieren kann, sowie mit Verankerungsmittel in der Wanne zur Erzielung der Verbundwirkung zwischen der Füllung und der Wanne und einer mit dem Wannenboden kraftschlüssig verbundenen Verstärkung.The invention relates to a composite building board, in particular for raised floors for support at the corners, consisting of an open top, made of tensile material, preferably sheet steel, and a filling of pressure-resistant material, the density and strength of which can vary within a relatively wide range, and with anchoring means in the tub to achieve the bond between the filling and the tub and a reinforcement connected to the tub bottom.
Durch die DE-PS 20 04 101 ist eine Verbundbauplatte bekannt, die der oben bezeichneten Bauplatte ähnlich ist und eine die äußere Bewehrung der Platte bildende Wanne aus Stahlblech sowie eine in der Wanne eingebettete druckfeste Masse, in der Regel Beton oder Anhydrit, aufweist. Diese Wanne wird im Tiefziehverfahren hergestellt, was zur Folge hat, daß die Materialdicke an ihren nach oben gezogenen Seitenwänden gegenüber der Materialdicke des Wannenbodens geringer ist. Vor allem aus diesem Grund ist die Tragfähigkeit bzw. Belastbarkeit solcher Verbundbauplatten in der Mitte wesentlich größer als in ihrem Rand. Daher besteht die Gefahr, daß sich bei diesen Verbundbauplatten unter Belastung, z. B. durch Befahren mit einem schweren Aktenwagen, der Plattenrand immer stärker durchbiegt als die Plattenmitte. Dabei entsteht eine Stufe und bei jedem Stoß des Aktenwagens gegen die Stufe eine dynamische Belastung, die bei wiederholtem Auftreten zu einer bleibenden Verformung der Verbundbauplatte oder gar Materialzerstörung (Rissebildung in der Wanne und / oder Füllung) führen kann.From DE-PS 20 04 101 a composite building board is known which is similar to the building board referred to above and which has a tub made of sheet steel which forms the outer reinforcement of the board and a pressure-resistant mass embedded in the tub, usually concrete or anhydrite. This tub is manufactured using the deep-drawing process, which has the consequence that the material thickness on its upwardly drawn side walls is less than the material thickness of the tub bottom. For this reason in particular, the load-bearing capacity or resilience of such composite building boards is significantly greater in the middle than in their edge. Therefore, there is a risk that these composite building boards under load, for. B. by driving with a heavy file car, the plate edge always bends more than the center of the plate. This creates a step and each time the file car hits the step, it creates a dynamic load that Repeated occurrence can lead to permanent deformation of the composite building board or even material destruction (cracking in the tub and / or filling).
Die oben geschilderten Nachteile treten auch bei Verbundbauplatten auf, bei welchen die Materialdicke der Seitenwände gleich derjenigen des Wannenbodens ist und/oder bei denen entsprechend der DE-OS 25 45 854 neben den Seitenwänden am Wannenboden Armierungsstäbe angeschweißt sind. Auch bei den zuletzt erwähnten Verbundbauplatten ist bei entsprechend hoher Belastung die Durchbiegung am Plattenrand stärker als in der Plattenmitte, da durch die am Wannenboden angeschweißten Armierungsstäbe das Trägheits- und Widerstandsmoment am Plattenrand nicht ausreichend erhöht wird.The disadvantages described above also occur in composite building boards, in which the material thickness of the side walls is equal to that of the tub floor and / or in accordance with
Bei anderen bekannten Verbundbauplatten-Ausführungen, bei welchen die Bewehrung traditionell im Inneren des Betons oder dgl. eingebettet ist (vergl. z. B. DE-PS 26 16 317), ist gegenüber den Verbundbauplatten der eingangs bezeichneten Bauart mit einer wannenförmigen äußeren Bewehrung die Leichtbaukennziffer, d. h. das Verhältnis zwischen Belastungsfähigkeit und Eigengewicht der Verbundbauplatte von Haus aus wesentlich ungünstiger, so daß sie schon aus diesem Grund hier außer Betracht bleiben können.In other known composite building board designs, in which the reinforcement is traditionally embedded in the interior of the concrete or the like (see, for example, DE-PS 26 16 317), compared to the composite building boards of the type described at the outset with a trough-shaped outer reinforcement Lightweight index, d. H. the relationship between load capacity and dead weight of the composite building board inherently much less favorable, so that they can be disregarded for this reason alone.
Der Erfindung liegt die Aufgabe zugrunde, eine Verbundbauplatte mit einer eine äußere Bewehrung bildenden Wanne aus zugfestem Material und einer Füllung aus druckfestem Material derart weiterzubilden, daß unter gleicher Blastung in der Mitte oder an den Rändern ihre Durchbiegung an diesen Stellen praktisch gleich groß ist.The invention has for its object to develop a composite building board with an outer reinforcement trough made of tensile material and a filling of pressure-resistant material such that with the same blast in the middle or at the edges their deflection is practically the same size at these points.
Gemäß der Erfindung wird obige Aufgabe dadurch gelöst, daß die Verstärkung an den Seitenwänden der Wanne vorgesehen und derart ausgebildet ist und/oder daß die Dichte und Festigkeit der Füllung im Randbereich der Verbundbauplatte gegenüber dem restlichen Bereich zur Plattenmitte hin mindestens um das Zweifache größer ist, so daß die Tragfähigkeit und Sicherheit der Verbundbauplatte gegen Bruch am Rand und in der Plattenmitte im wesentlichen nivelliert ist. Eine an ihren Ecken aufgelagerte Verbundbauplatte mit den erfindungsgemäßen Merkmalen hat den Vorteil, daß ihre Tragfähigkeit im Randbereich der Tragfähigkeit in der Plattenmitte angeglichen ist und die bisher vorhandene Gefahr bei bekannten Verbundbauplatten, nämlich durch entsprechende Belastung eine bleibende Verformung oder gar Materialzerstörung am Plattenrand zu erfahren, wesentlich verringert ist. Durch die Erfindung läßt sich auch die Forderung der Praxis einfacher erfüllen als bisher, wonach die Belastungsfähigkeit einer Doppelbodenplatte dadurch bestimmt ist, daß an der schwächsten Stelle die Durchbiegung nicht größer als 1/300 der Auflagerentfernung sein darf und andererseits eine bestimmte Sicherheit gegen Bruch gewährleistet sein muß, d. h. daß die zulässige Belastung nur einen Teil, z. B. die Hälfte der Bruchlast, entsprechen darf. Die erwähnte Durchbiegung läßt sich nämlich bei der erfindungsgemäßen Verbundbauplatte praktisch an allen Stellen gleich groß halten - eine gleich große Belastung an all diesen Stellen vorausgesetzt - vorzugsweise wird die Verstärkung an den Seitenwänden der Wanne, im wesentlichen plattenhoch ausgebildet, so daß man ein entsprechend großes Trägheitsmoment erhält.According to the invention, the above object is achieved in that the reinforcement is provided on the side walls of the trough and is designed in such a way and / or that the density and strength of the filling in the edge region of the composite building board is at least twice as great as compared to the rest of the area towards the center of the board, so that the load-bearing capacity and security of the composite building board against breakage at the edge and in the middle of the board is substantially leveled. A composite building board supported at its corners with the features according to the invention has the advantage that its load-bearing capacity in the edge region is matched to the load-bearing capacity in the middle of the board and the previously existing danger with known composite building boards, namely to experience permanent deformation or even material destruction at the edge of the board through appropriate loading, is significantly reduced. The invention also makes it easier to meet the requirement in practice than hitherto, according to which the load capacity of a raised floor slab is determined in that the deflection at the weakest point must not be greater than 1/300 of the support distance and, on the other hand, a certain security against breakage is guaranteed must, d. H. that the permissible load is only a part, e.g. B. may correspond to half the breaking load. The aforementioned deflection can namely be kept practically the same size at all points in the composite building board according to the invention - assuming an equal load at all these points - preferably the reinforcement on the side walls of the tub is essentially plate-high, so that a correspondingly large moment of inertia receives.
Von Vorteil ist ferner, daß die Erfindung auch in Verbindung mit unterschiedlichem Füllmaterial angewendet werden kann, um Verbundbauplatten unterschiedlichen Gewichts zu erhalten. Dies ist im Hinblick auf die Reduzierung der Herstellungs-, Fracht- und Montagekosten von großer Bedeutung. Mit anderen Worten, die Erfindung ermöglicht die Herstellung von Verbundbauplatten unterschiedlichen Eigengewichts mit entsprechend verschiedener Tragfähigkeit, stellt jedoch in jedem Fall sicher, daß die Tragfähigkeit an allen Stellen der Verbundbauplatte praktisch gleich ist.It is also advantageous that the invention can also be used in connection with different filler material in order to obtain composite building boards of different weights. This is with regard to the Reduction of manufacturing, freight and assembly costs of great importance. In other words, the invention enables the production of composite building boards of different weight with correspondingly different load-bearing capacity, but in any case ensures that the load-bearing capacity is practically the same at all points on the composite building board.
Ausgestaltungen der Erfindung gehen aus den Unteransprüchen hervor. Wenn die Verbundbauplatte eine Wanne aufweist, die einstückig aus einer ebenen Blechplatte durch Aufbiegen von Randstreifen zwischen ausgeschnittenen Ecken und Verschweißen der Stoßkanten an den Ecken der Wanne hergestellt ist, ist es zweckmäßig, wenn man die Randstreifen der ebenen Blechplatte mindestens zur Verdoppelung der Dicke der Wannenseitenwände umschlägt, hochbiegt und an ihren Stoßkanten verschweißt. Auf diese Weise erreicht man sehr einfach eine plattenhohe Verstärkung an den Seitenwänden der Wanne unter Aufrechterhaltung der Materialdicke auch im Randbereich des Wannenbodens.Embodiments of the invention emerge from the subclaims. If the composite building board has a tub, which is made in one piece from a flat sheet metal plate by bending edge strips between cut corners and welding the abutting edges at the corners of the tub, it is expedient if the edge strips of the flat sheet metal plate are at least doubled in thickness of the tub side walls covers, bends up and welded at their butt edges. In this way it is very easy to achieve a plate-high reinforcement on the side walls of the tub while maintaining the material thickness even in the edge area of the tub bottom.
Gemäß einer weiteren Ausbildung der Erfindung ist die Verstärkung durch an den Blechwänden der Wanne innen und/oder außen befestigtes, z. B. aufgeklebtes oder aufgeschweißtes Flachmaterial oder Winkelprofile gebildet. Diese Maßnahme kann vorteilhaft bei Wannen angewendet werden, die auf unterschiedliche Weise, das Tiefziehen eingeschlossen, hergestellt sind.According to a further embodiment of the invention, the reinforcement by on the sheet metal walls of the tub inside and / or outside, for. B. glued or welded flat material or angle profiles. This measure can advantageously be applied to tubs that are manufactured in different ways, including deep drawing.
Noch eine weitere Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß die Wanne zweistückig aus einem mit Verankerungsmittel versehenen Bodenblech und einem zugleich die verstärkten Seitenwände der Wanne bildenden Profilrahmen hergestellt ist, dessen Wanddicke mindestens dreifach so groß ist wie die Wanddicke des Bodenbleches, und daß das Bodenblech mit dem Profilrahmen durch z. B. Punktschweißung verbunden ist. Eine solche Wanne, deren verstärkte Seitenwände durch einen Profilrahmen gebildet sind, und die ein einfaches ebenflächiges Bodenblech als Wannenboden enthält, ist in der Herstellung besonders preiswert und führt zu einer entsprechenden Kostensenkung der betreffenden Verbundbauplatte.Yet another embodiment of the invention is characterized in that the trough is made in two parts from a base plate provided with anchoring means and a profile frame which also forms the reinforced side walls of the trough, the wall thickness of which is at least three times as large as the wall thickness of the floor plate, and that the floor panel with the profile frame by z. B. spot welding is connected. Such a trough, the reinforced side walls of which are formed by a profile frame, and which contains a simple flat floor plate as trough floor, is particularly inexpensive to manufacture and leads to a corresponding reduction in costs of the composite building board concerned.
Wenn nach noch einer weiteren Ausbildung der Erfindung die Ränder des Bodenblechs zur Erhöhung des Widerstandsmoments im Randbereich der Bauplatte zusätzlich verformt sind, wird gleichzeitig vorteilhaft auch die Verbundwirkung zwischen der Füllung aus druckfestem Material und der Wanne im Randbereich gesteigert.If, according to yet another embodiment of the invention, the edges of the floor panel are additionally deformed to increase the section modulus in the edge area of the building board, the bond effect between the filling made of pressure-resistant material and the tub in the edge area is also advantageously increased at the same time.
Noch eine weitere Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß das Flachmaterial oder die Winkelprofile zur Verstärkung der Wannenseitenwände im Mittelbereich zwischen den Ecken der Wanne eine größere Bauhöhe und damit ein größeres Widerstandsmoment besitzen, als die den Ecken der Wanne benachbarten Bereiche. Dadurch erzielt man eine Reduzierung des Eigenwichts der Verbundbauplatte unter Beibehaltung der Vorteile der Erfindung.Yet another embodiment of the invention is characterized in that the flat material or the angle profiles for reinforcing the tub side walls in the central region between the corners of the tub have a greater overall height and thus a greater section modulus than the areas adjacent to the corners of the tub. This achieves a reduction in the inherent weight of the composite building board while maintaining the advantages of the invention.
Die Erfindung wird anschließend anhand der Zeichnungen von Ausführungsbeispielen erläutert. Es zeigen:
- Fig. 1 a eine Querschnittsansicht einer Verbundbauplatte bekannter Bauweise, abgestützt auf ihren Ecken und mit einer Belastung P an ihren Rändern sowie in der Mitte in Verbindung mit einer schematischen Darstellung der durch diese Belastungen hervorgerufenen Durchbiegung der Verbundbauplatte, zum besseren Verständnis übertrieben gezeichnet;
- Fig. 1 b eine der Figur 1 a ähnliche Querschnittsansicht, jedoch von einer Verbundbauplatte mit den erfindungsgemäßen Merkmalen, gleichfalls mit einer schematischen Darstellung der durch die Belastungen hervorgerufenen Durchbiegung der Verbundbauplatte;
- Fig. 2 a eine Teil-Schnittansicht einer Verbundbauplatte, bei der die Dichte und Festigkeit der Füllung in ihrem Randbereich größer als im restlichen Bereich ist;
- Fig. 2 b bis 2 g verschiedene Teil-Schnittansichten von Verbundbauplatten, bei welchen die Seitenwände der Wanne erfindungsgemäß unterschiedlich verstärkt sind;
- Fig. 3 a bis 3 c verschiedene Phasen bei der Herstellung einer Wanne mit verstärkten Seitenwänden aus einem ebenflächigen Blechzuschnitt durch Aufbiegen und Umschlagen von Randstreifen zwischen ausgeschnittenen Ecken für eine Verbundbauplatte entsprechend Figur 2 b und
- Fig. 4 eine Schrägansicht einer aufgeschnittenen Verbundbauplatte entsprechend der Ausführungsform nach Figur 2 g.
- 1 a is a cross-sectional view of a composite building board of known construction, supported on its corners and with a load P at its edges and in the middle in conjunction with a schematic representation of the deflection of the composite building board caused by these loads, exaggerated for better understanding;
- 1 b is a cross-sectional view similar to FIG. 1 a, but of a composite building board with the features according to the invention, likewise with a schematic representation of the deflection of the composite building board caused by the loads;
- 2 a is a partial sectional view of a composite building board, in which the density and strength of the filling in its edge region is greater than in the rest of the region;
- Fig. 2 b to 2 g different partial sectional views of composite building boards, in which the side walls of the tub are reinforced differently according to the invention;
- Fig. 3 a to 3 c different phases in the manufacture of a tub with reinforced side walls from a flat sheet metal blank by bending and turning edge strips between cut corners for a composite building board according to Figure 2 b and
- Fig. 4 is an oblique view of a cut composite building board according to the embodiment of Figure 2 g.
In Figur 1 a ist oben im Schnitt eine Verbundbauplatte (10) gezeigt, die an ihren vier Ecken auf lediglich schematisch angedeutete Fußstützen (11) aufgelagert ist und z. B. zur Herstellung eines Doppelbodens verwendet wird. Die Verbundbauplatte (10) weist eine aus Stahlblech hergestellte Wanne (3) mit einer Füllung (2) aus einem druckfesten Material, z. B. Beton oder Anhydrit, auf. Die Verbundwirkung zwischen der die äußere Bewehrung für die Bauplatte (10) bildenden Wanne (3) und der Füllung (2) wird durch Verankerungsmittel (4) erreicht, die im vorliegenden Fall aus Öffnungen mit nach innen gezogenen gezackten Rändern (sogenannte Punzen) im Wannenboden (5) bestehen. Die Wanne (3) aus Stahlblech ist im Tiefziehverfahren hergestellt, wobei der Wannenboden (5) die ursprüngliche Blechstärke S 1 aufweist, während die Seitenwände (6) eine durch den Tiefziehvorgang bedingte, gegenüber der Blechstärke S 1 reduzierte Blechstärke S 2 besitzen. Unter der Schnittansicht der Verbundbauplatte (10) ist schematisch die Verformung derselben unter der Einwirkung einer senkrechten Last P an ihren Rändern oder in der Mitte bei nur an ihren vier Ecken aufgelagerter Platte (10) dargestellt. Es ist erkennbar, daß bei dieser bekannten Verbundbauplatte (10) die Durchbiegung hMa in der Mitte wesentlich kleiner ist als die Durchbiegung hRa an den Plattenrändern. Die schwächsten Stellen der Verbundbauplatte (10) befinden sich also an ihren Rändern und bestimmen ihre Belastungsfähigkeit, was jedoch ungünstig ist. Für die Belastungsfähigkeit von Doppelbodenplatten gilt nämlich international die Forderung, daß die Durchbiegung an der schwächsten Stelle der Platte nicht größer als 1/300 der Auflager- oder Stützenentfernung A sein darf.In Figure 1 a above is shown in section a composite building board (10) which is supported at its four corners on only schematically indicated footrests (11) and z. B. is used to produce a raised floor. The composite building board (10) has a trough (3) made of sheet steel with a filling (2) from one pressure-resistant material, e.g. B. concrete or anhydrite. The bonding effect between the tub (3) forming the outer reinforcement for the building board (10) and the filling (2) is achieved by anchoring means (4), which in the present case consist of openings with jagged edges (so-called punches) in the tub bottom (5) exist. The tub (3) made of sheet steel is manufactured using the deep-drawing process, the tub bottom (5) having the original sheet thickness S 1, while the side walls (6) have a
In Figur 1 b ist eine Verbundbauplatte (10 g) gezeigt, welche in ihren Außenabmessungen der Verbundbauplatte (10) der Figur 1 a entspricht und als Doppelbodenplatte gleichfalls an ihren vier Ecken auf Stützen (11) aufgelagert wird. Die Verbundbauplatte (10 g) weist jedoch eine entsprechend der Erfindung ausgebildete Wanne (3 g) in Übereinstimmung mit der Ausführungsform nach Figur 2 g auf, wodurch unter gleichen Belastungsverhältnissen wie beim Beispiel nach Figur 1 a die Durchbiegung hMb in der Plattenmitte im wesentlichen so groß wie die Durchbiegung hRb an den Plattenrändern ist. Mit anderen Worten, die Tragfähigkeit der Verbundbauplatte (10 g) ist an ihren Rändern und in der Plattenmitte praktisch gleich groß. Die Wanne (3 g) (vgl. auch Figur 2 g) der Verbundbauplatte (10 g) ist zweistückig hergestellt. Ein Profilrahmen (aus einem Z-Profil) bildet hier die verstärkten Seitenwände (6 g) der Wanne (3 g), deren Dicke S 4 ein Mehrfaches (mindestens das Dreifache) der Wanddicke S 1 eines Bodenbleches (7) beträgt, welches an den nach innen ragenden Schenkeln des Profilrahmens, z. B. durch Schweißpunkte (9) befestigt ist. Das Bodenblech (7) ist mit den üblichen Verankerungsöffnungen (4) für die Füllung (2) aus druckfestem Material versehen und es weist an seinen vier Rändern eine zusätzliche Abkantung (7 a) auf, welche die Verbundwirkung erhöht und gleichzeitig den Randbereich der Verbundbauplatte zusätzlich verstärkt. Die Füllung (2) ist bei diesem Ausführungsbeispiel über den gesamten Plattenquerschnitt von gleicher Dichte und Festigkeit. Die Verstärkung der Seitenwände (6 g) der Wanne (3 g) gegenüber dem Wannenboden ist in jedem Fall so bemessen, daß die Tragfähigkeit der Verbundbauplatte (10 g) an ihren Rändern und in der Mitte praktisch gleich ist.FIG. 1 b shows a composite building board (10 g) which corresponds in its external dimensions to the composite building board (10) of FIG. 1 a and is also supported as a double floor board at its four corners on supports (11). The composite building board (10 g), however, has a trough (3 g) designed in accordance with the invention in accordance with the embodiment according to FIG. 2 g, so that under the same load conditions as in the example according to FIG The middle of the plate is essentially as large as the deflection hRb at the edges of the plate. In other words, the load-bearing capacity of the composite building board (10 g) is practically the same at its edges and in the middle of the board. The tub (3 g) (see also FIG. 2 g) of the composite building board (10 g) is made in two pieces. A profile frame (from a Z-profile) forms the reinforced side walls (6 g) of the tub (3 g), the
Auch die in Figur 2 f gezeigte Verbundbauplatte (10 f) enthält eine aus zwei Stücken hergestellte Wanne (3 f). Die Seitenwände (6 f) der Wanne (3 f) bestehen aus einem L-Profilrahmen, dessen Wandstärke S 4 ein Mehrfaches (mindestens das Dreifache) der Wandstärke S 1 des Bodenbleches (7) beträgt. Dieses Bodenblech (7) ist z. B. durch Schweißpunkte (9) an den nach innen ragenden Schenkeln des Profilrahmens befestigt und enthält Verankerungsöffnungen (4) für die Füllung (2), die auch in den Seitenwänden (6 f) der Wanne (3 f) vorgesehen sind. Die Tragfähigkeit dieser Verbundbauplatte (10 f) ist bei Auflagerung an den vier Ecken an ihren Rändern und in der Mitte im wesentlichen gleich. Dabei kann die Füllung (2) aus druckfestem Material über den gesamten Plattenquerschnitt die gleiche Dichte und Festigkeit aufweisen.The composite building board (10 f) shown in FIG. 2 f also contains a trough (3 f) made from two pieces. The side walls (6 f) of the tub (3 f) consist of an L-profile frame, the
Im Gegensatz zu den bisher beschriebenen Ausführungsbeispielen der Erfindung enthält die Verbundbauplatte (10 a) entsprechend Figur 2 a eine Wanne (3 a) als äußere Bewehrung für die Füllung (2) aus druckfestem Material, bei der die Wandstärke S 1 des Wannenbodens (5) gleich der Wandstärke S 2 der Seitenwände (6 a) der Wanne ist. Die Nivellierung der Tragfähigkeit dieser Verbundbauplatte (10 a) am Rand und in der Plattenmitte bei Auflagerung an ihren vier Ecken erfolgt hier dadurch, daß ihr Randbereich statisch aufgewertet wird, in dem die druckfeste Füllung (2) im Randbereich (12) ein höheres Raumgewicht und eine höhere Druckfestigkeit besitzt als im restlichen Teil des Plattenquerschnitts. Man erreicht dies z. B. dadurch, daß die ursprünglich mit relativ geringerer Dichte in die Wanne (3 a) eingebrachte Füllung (2) durch Preßdruck im Randbereich (12) entsprechend stärker verdichtet wird.In contrast to the previously described exemplary embodiments of the invention, the composite building board (10 a) according to FIG. 2 a contains a trough (3 a) as external reinforcement for the filling (2) made of pressure-resistant material, in which the wall thickness S 1 of the trough bottom (5) is equal to the
Die in Figur 2 b gezeigte Verbundbauplatte (10 b) besteht aus einer Wanne (3 b) aus Stahlblech und einer Füllung (2) aus druckfestem Material, z. B. Anhydrit. Bei diesem Ausführungsbeispiel sind die Seitenwände (6 b) der Wanne (3 b) doppelt so dick wie der Wannenboden (5). Diese Verstärkung der Seitenwände (6 b) der Wanne (3 b) kann man z. B. durch eine Fertigungsmethode erzielen, die noch anhand der Figuren 3 a bis 4 c erläutert wird. Die Füllung (2) kann über den gesamten Plattenquerschnitt von gleicher Dichte und Festigkeit sein oder vorzugsweise im Randbereich (12) auch ein höheres Raumgewicht und eine höhere Druckfestigkeit analog dem Ausführungsbeispiel nach Figur 2 a aufweisen. Die Seitenwände der Wanne können auch dreifach oder vierfach so dick wie der Wannenboden sein. Die vierfache Verdickung wird bevorzugt.The composite building board shown in Figure 2 b (10 b) consists of a trough (3 b) made of sheet steel and a filling (2) made of pressure-resistant material, for. B. anhydrite. In this embodiment, the side walls (6 b) of the tub (3 b) are twice as thick as the tub bottom (5). This reinforcement of the side walls (6 b) of the tub (3 b) can, for. B. achieve by a manufacturing method, which will be explained with reference to Figures 3 a to 4 c. The filling (2) can be of the same density and strength over the entire plate cross section or, preferably in the edge region (12), also a higher density and a higher compressive strength analogous to the exemplary embodiment according to Figure 2a have. The side walls of the tub can also be three or four times as thick as the bottom of the tub. Quadruple thickening is preferred.
Die in Figur 2 c gezeigte Ausführungsform einer Verbundbauplatte (10 c) umfaßt eine Wanne (3 c) als außenliegende Bewehrung, die zunächst derjenigen der Figur 2 a entspricht, d. h., daß sie an allen Stellen die gleiche Wanddicke S 1 aufweist. Die Verstärkung an den Seitenwänden (6 c) dieser Wanne (3 c) wird dadurch geschaffen, daß an den Seiten- bzw. Blechwänden der Ausgangswanne ein Flachmaterial bzw. Flachstahl (13) mit der Wanddicke S 2 durch Schweißen, Kleben oder Druck-Fügetechnik auch in Verbindung mit den Punzen (4) befestigt wird, so daß die Gesamtdicke der Wannen-Seitenwände (6 c) S 3 = S 1 + S 2 ist. Beim Ausführungsbeispiel nach Fig. 2 c ist das Flachmaterial (13) an den Seitenwänden der Ausgangswanne innen angeordnet, es kann jedoch auch außen angebracht sein und ist in jedem Fall im wesentlichen plattenhoch ausgebildet. Die Dicke S 3 der Seitenwände (6 c) beträgt beim Ausführungsbeispiel nach Figur 2 c ein Mehrfaches der Dicke S 1 des Wannenbodens (5). Wie in gestrichelten Linien in Figur 2 c angedeutet ist, nimmt die Bauhöhe des Flachmaterials (13) von den Wanneenecken weg gegen die Mitte zwischen den Ecken der Wanne stetig zu und erreicht in der Mitte zwischen den Wannenecken den größten Wert. Die der Verankerung mit der Füllung (2) dienenden Öffnungen (4) mit nach innen ausgefransten Rändern (Punzen) erstrecken sich bei diesem Ausführungsbeispiel auch durch die Seitenwände (6 c) der Wanne und dienen zugleich der Verbindung zwischen dem Flachmaterial (13) und den Blechwänden der Wannen. Die Füllung (2) aus druckfestem Material kann hier über den gesamten Plattenquerschnitt wieder gleiche Dichte und Festigkeit aufweisen.The embodiment of a composite building board (10 c) shown in FIG. 2 c comprises a trough (3 c) as external reinforcement, which initially corresponds to that of FIG. 2 a, ie that it has the same wall thickness S 1 at all points. The reinforcement on the side walls (6 c) of this tub (3 c) is created in that a flat material or flat steel (13) with the
Bei den Ausführungsbeispielen nach den Figuren 2 d und 2 e sind die Seitenwände (6 d bzw. 6 e) der betreffenden Wannen (3 d, 3 e) ähnlich wie beim Ausführungsbeispiel nach Figur 2 b verstärkt, nur wird bei den Verbundbauplatten (10 d bzw. 10 e) der umgeschlagene Randstreifen außen bzw. innen abgewinkelt und zusätzlich zur Verstärkung der Wannen-Seitenwände (6 d bzw. 6 e) verwendet. Auch hier können die Punzen (4) zusätzlich Verbindungszwecken dienen.In the exemplary embodiments according to FIGS. 2 d and 2 e, the side walls (6 d or 6 e) of the relevant troughs (3 d, 3 e) are reinforced in a manner similar to the exemplary embodiment according to FIG. 2 b, only in the composite building boards (10 d or 10 e) the folded edge strip angled on the outside or inside and additionally used to reinforce the tub side walls (6 d or 6 e). The punches (4) can also be used here for connection purposes.
Die in Figur 2 g nur im Teilschnitt gezeigte Verbundbauplatte (10 g) ist in Figur 4 ausführlicher dargestellt. Diese Figur läßt erkennen, daß die Seitenwände (6 g) der Wanne (3 g) aus einem Z-Profil-Rahmen gebildet sind, der seinerseits aus vier Profilstücken (16) zusammengesetzt ist, die an ihren Enden (15) auf Gehrung zugeschnitten und miteinander verschweißt sind. In gleicher Weise kann auch der die Wannen-Seitenwände (6 f) beim Ausführungsbeispiel nach Figur 2 f bildende Profilrahmen hergestellt werden. Die Aufkantungen (7 a) am Bodenblech (7) bzw. Wannenboden können gleichfalls zur weiteren Steigerung der Verbundwirkung zwischen Wanne (3 g) und Füllung (2) mit Durchbrüchen (4) versehen sein.The composite building board (10 g) shown only in partial section in FIG. 2 g is shown in more detail in FIG. 4. This figure shows that the side walls (6 g) of the tub (3 g) are formed from a Z-profile frame, which in turn is composed of four profile pieces (16) which are mitred at their ends (15) and are welded together. The profile frame forming the tub side walls (6 f) in the exemplary embodiment according to FIG. 2 f can also be produced in the same way. The upturns (7 a) on the base plate (7) or trough base can likewise be provided with openings (4) to further increase the bond effect between the trough (3 g) and the filling (2).
Die Figurenfolge 3 a bis 3 c veranschaulicht die Herstellung der Wanne (3 b) für die Verbundbauplatte (10 b) gemäß Figur 2 b, deren Seitenwände (6 b) die doppelte Dicke des Wannenbodens (5) besitzen. Als Ausgangsmaterial für die Wanne (3 b) dient der in Figur 3 a gezeigte ebenflächige Blechzuschnitt, dessen Außenmaße A 1 und B 1 um den Wert 4 H größer sind als die Bodenmaße A 2 und B 2 der fertigen in Figur 3 c geseigten Wanne (3 b). An den Ecken des Blechzuschnitts der Figur 3 a werden Ausschnitte (26) so ausgestanzt, daß Randstreifen (21) zwischen den ausgestanzten Ecken mit einer Querabmessung 2 H entstehen. Sodann werden gemäß Figur 3 b die Randstreifen (21) zunächst um Biegelinien (24 a) umgelegt und damit die Materialdicke verdoppelt, bevor dann die verdoppelten Randstreifen um die Biegelinien (24 b) nach oben gebogen werden, bis sie an ihren Enden zusammenstoßen. An Ihren Stoßstellen werden schließlich die verdoppelten Randstreifen (21) z. B. durch Schweißnähte (25) verbunden. Die fertige Wanne (3 b) ist in Figur 3 c mit einem Teil der Füllung (2) aus druckfestem Material gezeigt, die randseitig eine höhere Festigkeit als in den übrigen Bereichen aufweist.The sequence of figures 3 a to 3 c illustrates the manufacture of the tub (3 b) for the composite building board (10 b) according to FIG. 2 b, the side walls (6 b) of which have twice the thickness of the tub floor (5). The base material for the tub (3 b) is the flat sheet metal blank shown in FIG. 3 a, the external dimensions A 1 and B 1 of which are 4 H greater than the bottom dimensions A 2 and
Als Füllung (2) können, je nach den Anforderungen an die Verbundbauplatten, verschiedenste druckfeste Materialien verwendet werden. Für besonders hochwertige Verbundbauplatten werden z. B., wie bisher, mineralische Füllmassen in Form von Anhydrit oder Beton vorgesehen. Für Verbundbauplatten, an die geringere Ansprüche gestellt werden, können dagegen auch spezifisch leichtere Füllungen, z. B. mit Kunststoff als Bindemittel (Kunstharz-Leichtbeton) oder gipsgebundene Füllmassen mit leichten Zuschlagstoffen (z. B. Holzschnitzel oder Perlite) verwendet werden. Das Raumgewicht und die Druckfestigkeit der Füllung (2) können dabei in weiten Grenzen variiert werden, jedoch muß dabei immer die Wanddicke S 1 des Wannenbodens dem Raumgewicht der Füllung (2) angeglichen werden.A wide variety of pressure-resistant materials can be used as the filling (2), depending on the requirements for the composite building boards. For particularly high-quality composite building boards, e.g. B., as before, mineral fillers provided in the form of anhydrite or concrete. For composite building boards, to which lower demands are made, on the other hand, specifically lighter fillings, e.g. B. with plastic as a binder (synthetic resin lightweight concrete) or gypsum-bound fillers with light aggregates (z. B. wood chips or perlite). The density and the compressive strength of the filling (2) can be varied within wide limits, but the wall thickness S 1 of the tub floor must always be adjusted to the density of the filling (2).
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88107389T ATE71687T1 (en) | 1987-06-19 | 1988-05-07 | COMPOSITE PANEL, ESPECIALLY FOR RAISED FLOORS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873720238 DE3720238A1 (en) | 1987-06-19 | 1987-06-19 | COMPOSITE BUILDING PANEL, ESPECIALLY FOR DOUBLE FLOORS |
DE3720238 | 1987-06-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0295417A2 true EP0295417A2 (en) | 1988-12-21 |
EP0295417A3 EP0295417A3 (en) | 1989-05-10 |
EP0295417B1 EP0295417B1 (en) | 1992-01-15 |
Family
ID=6329872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88107389A Expired - Lifetime EP0295417B1 (en) | 1987-06-19 | 1988-05-07 | Composite building slab, particularly for sectional false floors |
Country Status (8)
Country | Link |
---|---|
US (1) | US5057355A (en) |
EP (1) | EP0295417B1 (en) |
AT (1) | ATE71687T1 (en) |
CA (1) | CA1302112C (en) |
DE (2) | DE3720238A1 (en) |
DK (1) | DK163315C (en) |
ES (1) | ES2028933T3 (en) |
NO (1) | NO164051C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0451619A1 (en) * | 1990-04-09 | 1991-10-16 | Goldbach GmbH Holz-, Kunststoff-und Metallverarbeitung | Method of manufacturing a composite polygonal panel for floors, panel made according to this method and a floor made from such panels |
WO2009042229A1 (en) * | 2007-09-28 | 2009-04-02 | Haworth, Inc. | Floor tile with adhesively bonded concrete and manufacturing process therefor |
CN105297977A (en) * | 2014-07-23 | 2016-02-03 | 钟崇林 | Method for manufacturing ultrathin light duplex floor slabs |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69106852T2 (en) * | 1990-11-29 | 1995-07-20 | Toshiba Kawasaki Kk | Method of manufacturing a system floor and floor support surface for system floor. |
DE4107594C1 (en) * | 1991-03-09 | 1992-01-09 | Mero-Werke Dr.-Ing. Max Mengeringhausen Gmbh & Co, 8700 Wuerzburg, De | Composite panel for building - has fixings to connect panel trough and anhydrite filling |
DE19752462A1 (en) * | 1997-11-27 | 1999-07-15 | Mero Systeme Gmbh & Co Kg | Double base plate with layer of natural and/or synthetic anhydrite |
AU2002225285A1 (en) * | 2002-01-25 | 2003-09-02 | Edilconsulting S.A. | Flat panel for raised floor |
US6918217B2 (en) | 2002-02-25 | 2005-07-19 | Haworth, Ltd. | Raised access floor system |
ITVR20020035A1 (en) | 2002-04-11 | 2003-10-13 | Stone Italiana S R L | PROCEDURE FOR THE PRODUCTION OF SLABS OR TILES IN AGGLOMERATED MATERIAL REINFORCED WITH METAL PLATE AND SLABS OR REINFORCED TILES WITH |
US20050115162A1 (en) * | 2003-04-28 | 2005-06-02 | Nee Stephen F. | Method and apparatus for coupling structures to roofing |
US8002943B2 (en) * | 2007-09-28 | 2011-08-23 | Haworth, Inc. | Manufacturing process and system for floor tile |
DE102009025179A1 (en) * | 2009-06-12 | 2010-12-16 | Ruth Rundmund-Dingslaken | Construction composite panel |
US8782976B2 (en) * | 2012-11-05 | 2014-07-22 | Gary Meyer | Bi-surfaced raised access floor panel and cold isle forming system in a data center |
US20140260038A1 (en) * | 2013-03-14 | 2014-09-18 | Mark Jeffery Giarritta | Modular Construction System |
WO2016117125A1 (en) * | 2015-01-23 | 2016-07-28 | 日立機材株式会社 | Floor panel |
Citations (5)
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GB493777A (en) * | 1937-04-13 | 1938-10-13 | Ernest Clarke | Improvements in or relating to the manufacture of bricks or blocks |
GB616468A (en) * | 1946-09-04 | 1949-01-21 | Arthur Raymond Perry | Improvements in and relating to composite building slabs |
FR1044808A (en) * | 1951-06-23 | 1953-11-20 | Insoniso | Agglomerated material especially for insulation and construction |
FR2213393A1 (en) * | 1972-10-24 | 1974-08-02 | Versino Joseph | |
EP0209895A2 (en) * | 1985-07-23 | 1987-01-28 | Reinhold & Mahla GmbH | Floor plates for false floors |
Family Cites Families (5)
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GB1411580A (en) * | 1972-12-22 | 1975-10-29 | Ari Propaflor Ltd | Raised floor panels |
DE2712892A1 (en) * | 1977-03-24 | 1978-10-05 | Mengeringhausen Max | Casting system for making composite building panels - has mould holding additional frame and different materials for different loads |
US4621468A (en) * | 1984-07-11 | 1986-11-11 | Donn Incorporated | Concrete metal-backed access floor panel |
DE3431118C1 (en) * | 1984-08-24 | 1985-04-04 | MERO-Werke Dr.-Ing. Max Mengeringhausen, GmbH & Co, 8700 Würzburg | Self-supporting composite building board, especially for double floors |
DE3627353C1 (en) * | 1986-08-12 | 1987-10-15 | Mero Werke Kg | Self-supporting composite building board, especially double floor slab |
-
1987
- 1987-06-19 DE DE19873720238 patent/DE3720238A1/en active Granted
-
1988
- 1988-05-07 EP EP88107389A patent/EP0295417B1/en not_active Expired - Lifetime
- 1988-05-07 ES ES198888107389T patent/ES2028933T3/en not_active Expired - Lifetime
- 1988-05-07 DE DE8888107389T patent/DE3867715D1/en not_active Expired - Fee Related
- 1988-05-07 AT AT88107389T patent/ATE71687T1/en active
- 1988-05-20 DK DK280688A patent/DK163315C/en not_active IP Right Cessation
- 1988-06-17 NO NO882706A patent/NO164051C/en unknown
- 1988-06-20 CA CA000569929A patent/CA1302112C/en not_active Expired - Fee Related
- 1988-07-25 US US07/208,132 patent/US5057355A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB493777A (en) * | 1937-04-13 | 1938-10-13 | Ernest Clarke | Improvements in or relating to the manufacture of bricks or blocks |
GB616468A (en) * | 1946-09-04 | 1949-01-21 | Arthur Raymond Perry | Improvements in and relating to composite building slabs |
FR1044808A (en) * | 1951-06-23 | 1953-11-20 | Insoniso | Agglomerated material especially for insulation and construction |
FR2213393A1 (en) * | 1972-10-24 | 1974-08-02 | Versino Joseph | |
EP0209895A2 (en) * | 1985-07-23 | 1987-01-28 | Reinhold & Mahla GmbH | Floor plates for false floors |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0451619A1 (en) * | 1990-04-09 | 1991-10-16 | Goldbach GmbH Holz-, Kunststoff-und Metallverarbeitung | Method of manufacturing a composite polygonal panel for floors, panel made according to this method and a floor made from such panels |
WO2009042229A1 (en) * | 2007-09-28 | 2009-04-02 | Haworth, Inc. | Floor tile with adhesively bonded concrete and manufacturing process therefor |
US7770345B2 (en) | 2007-09-28 | 2010-08-10 | Haworth, Inc. | Floor tile with adhesively joined concrete sub-blocks |
US7810299B2 (en) | 2007-09-28 | 2010-10-12 | Haworth, Inc. | Manufacturing process for a floor tile |
CN105297977A (en) * | 2014-07-23 | 2016-02-03 | 钟崇林 | Method for manufacturing ultrathin light duplex floor slabs |
Also Published As
Publication number | Publication date |
---|---|
US5057355A (en) | 1991-10-15 |
NO882706L (en) | 1989-03-30 |
EP0295417A3 (en) | 1989-05-10 |
ES2028933T3 (en) | 1992-07-16 |
DK280688D0 (en) | 1988-05-20 |
NO164051B (en) | 1990-05-14 |
NO882706D0 (en) | 1988-06-17 |
DE3720238C2 (en) | 1989-06-08 |
CA1302112C (en) | 1992-06-02 |
NO164051C (en) | 1990-08-22 |
DE3720238A1 (en) | 1989-01-05 |
ATE71687T1 (en) | 1992-02-15 |
DK163315B (en) | 1992-02-17 |
DK280688A (en) | 1988-12-20 |
EP0295417B1 (en) | 1992-01-15 |
DE3867715D1 (en) | 1992-02-27 |
DK163315C (en) | 1992-07-13 |
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