EP2032324B1 - Device and method for the production of profiled concrete elements - Google Patents

Description

The invention relates to a slipformer for producing profiled concrete elements with a movable on a production line molding with insert profiles, at least one of the molding concrete feeding and compressing movable on the production line device and a movable over the production line feeding device for a reinforcement of the concrete element, and a Method.

The DE 81 19 953 U1 describes a slipformer for producing prefabricated concrete parts with a form of the finished parts determining formwork set, which is fixed to a first frame and devices for supplying and compacting concrete, such as concrete distribution boxes has. The first frame is associated with a second frame provided with means for connecting and operating the devices of the first frame, such as hydraulic cable devices, electrical devices, a motor for moving core and shutter sets and for driving the concrete distribution boxes and the like is. Both frames are designed for common feed on rails via wheels with hydraulically, electrically and / or mechanically connected devices and devices. The second frame can be placed over the first frame and releasably fixed and at least the first frame has the wheels for advancement.

Furthermore, the disclosure DE 30 00 590 A1 a device for producing profiled concrete elements with a movable on a production line molding with insert profiles and at least one of the molding concrete supplying and compressing, also movable on the production line pressure medium, which is designed as a pump.

With one from the FR 1 565 429 A1 known slip pavers are prepared prestressed or limp reinforced concrete elements in the continuous casting process. Before concreting, corrugated reinforcing bars are manually attached to tensioning wires and the slipformer then travels over them. This attachment of the reinforcing rods by hand is time consuming and therefore expensive. In addition, an exact working method is required.

Furthermore, the shows DE 40 22 364 A1 a method for producing reinforced concrete beams and a slipformer for carrying out the method. A concrete strip manufactured in a first step forms an upwardly open channel into which a steel fitting designed as a lattice girder is inserted. Then the gutter is poured out with a self-compacting concrete.

From the IT 109 30 969 B shows a slipformer for concrete elements, in which prior to concreting with the aid of a feeder a wire helix is placed over tension wires. After concreting, brackets are inserted into the upper sides of the concrete elements in parallel and at a distance from each other by means of a further feed device, which serves to connect ceiling panels to the concrete elements.

Of the FR 2 172 506 A is a method for producing a profiled concrete element with a working in the continuous casting slip paver, in which via a feeder individual transverse reinforcing steels are used at a distance from each other in the cast concrete element. The reinforcing steels may have different shapes, for example C-shaped or hook-shaped.

Finally, the reveals DE 37 14 581 A1 a device for the correct positioning of a prefabricated reinforcement in a reinforced concrete slab, in which initially filled liquid concrete in a suitable formwork, then the prefabricated reinforcement is placed and brought by shaking in the required position.

It is an object of the invention to provide a slipformer and a method of the type mentioned above, with each of which a cost-effective and reliable continuous production of concrete elements with a reinforcement for producing a Schubarmierung is ensured.

According to the task of the glider is characterized solved that the feeding device has a plurality of juxtaposed slots and is formed such that at least one wavy curved reinforcing rod by the feeder into the concrete can be introduced, the reverse arches of one side of the reinforcing rod project into the concrete and the reverse arcs of the opposite side to the outside and to which the feed device is assigned a guide device for the reinforcing bar, which extends from the feed device to a compressor downstream of the feed device.

Accordingly, during the production of the concrete element in the fresh concrete of the reinforcing rod is inserted and fixed by the concrete. The wave-shaped reinforcing bar is not a lattice girder. The reinforcing bar is wavy curved only in a forming process and is a very inexpensive to manufacture component, while a lattice girder is a unit to expensive to manufacture, which consists of a Obergurtstab and two Untergurtstäben, being welded between the Obergurtstab and each Untergurtstab diagonal bars. By feeding the proportion of manual activity in the introduction of the reinforcing rod is substantially reduced, so the component, such as a ceiling support, a lintel, a rib or bridge plate is relatively inexpensive to manufacture. In addition, a reproducible mounting of the reinforcing rod is ensured by the particular attachable to an existing slip paver or attached feeder. Of course, the waveform of Armierungsstabes is arbitrary or different waveforms arbitrary be combined with each other, in particular periodic, aperiodic, rectangular, trapezoidal and parallelogram waveforms are used. At the protruding into the open reversal bows can be further steel parts such. As grid mats, attach to produce a Schubarmierung.

Conveniently, the feeder of the molding concrete supplying and compacting device is arranged downstream. As a result, first the contours of the concrete part are largely completed and then inserted the reinforcing rod in the already compacted concrete.

Since with a slipformer often very long and / or wide concrete parts or simultaneously concrete parts are produced in a larger number, preferably the feed device for entering a plurality of successively and / or spaced juxtaposed Armierungsstäbe is formed. Of course, the Armierungsstäbe can be arranged both immediately behind one another and at a predetermined distance one behind the other.

So that the concrete-covered portion of the reinforcing bar is completely surrounded by concrete, the feeder of the compressor is connected downstream. The reinforcing rod is embedded in the concrete by compacting and it is not necessary to add additional concrete for the insertion of the reinforcing rod.

The molded part is designed to form at least one notch for receiving the reinforcing rod. The notch facilitates the introduction of the reinforcing bar in the compacted concrete and is closed at the subsequent to the introduction of the reinforcing bar compaction process. If several reinforcing bars to be mounted side by side, of course, notches are provided in appropriate numbers.

In order to fix the reinforcing bar in position until it is enclosed by compacted concrete, the feeder is associated with a guide device for the reinforcing bar, which extends from the feeder to the compressor downstream of the feeder. The guide device may in the simplest case of two parallel and spaced apart rods, between which the Armierungsstab is guided. If several reinforcing bars are to be introduced into the concrete, then of course guide devices are present in a corresponding number.

According to the invention, the object is also achieved in that in a method for producing a profiled concrete element with a slipformer, which works in the continuous casting method, at least one corrugated reinforcing rod is inserted into the concrete such that the reverse arches of one side of the reinforcing rod into the concrete and the Reverse bends of the opposite side protrude into the open, and the concrete after inserting the reinforcing rod is compacted, the reinforcing rod is guided after insertion into the concrete until the concrete is compacted.

The inventive method is used in particular for the production of concrete elements designed as a ceiling support, which are provided with an on-site concrete to be poured over Schubarmierung and has the advantages already explained. In particular, no additional concrete is supplied after the insertion of the reinforcing rod in the concrete, which is why over the prior art method, a step is saved.

Conveniently, a plurality of corrugated Armierungsstäbe be pressed with the corresponding reversing bends parallel and spaced from each other simultaneously in the concrete. Preferably, several reinforcing rods are inserted behind one another in the concrete. Thus, the cost-effective production of either a relatively large concrete part with a plurality of Armierungsstäben or a plurality of concrete parts is ensured with at least one Armierungsstab.

It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the respectively specified combination but also in other combinations. The scope of the invention is defined only by the claims.

Fig.1

eine schematische Seitenansicht einer erfindungsgemäßen Vorrichtung,

Fig.2

eine Schnittdarstellung gemäß der Linie II-II nach Fig. 1 und

Fig.3

eine Vorderansicht eines mit der Vorrichtung nach Fig. 1 gefertigten Betonteils.

The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying drawings. It shows:

Fig.1

a schematic side view of a device according to the invention,

Fig.2

a sectional view along the line II-II according to Fig. 1 and

Figure 3

a front view of one with the device according to Fig. 1 manufactured concrete part.

Trained as a slide paver device for producing profiled concrete elements 1 comprises two concrete silos 14, 2 each with associated compressors 3, 4 to apply concrete in two layers on a production line 5 over which a molded part 6 with insert profiles is movable. Furthermore, a feed device 7, which can also be moved over the production line 5, is provided for introducing corrugated reinforcing rods 8 into the concrete, which is connected downstream of the second compressor 4. At the feeder 7, another compressor 9 connects.

The feeder 7 has a plurality of guide slots 10 aligned adjacent to each other to insert the reinforcing bars 8 into the concrete such that the turnarounds 11 of one side project into the concrete and the reversing arcs 12 of the opposite side project into the open. Between the feed device 7 and the further compressor 9, a guide device 15 is arranged, which holds the Armierungsstäbe 8 in its inserted position until they are intimately enclosed by the compacted concrete and thus held.

With the slipformer can be made depending on the molded part 6, for example, as a ceiling support 13 trained concrete elements 1. The projecting into the open reversal bows 12 of the reinforcing bars 8 are initially used for striking a hoist. After the ceiling beams 13 have been mounted on the construction site, the reversing arches 12 are used to attach a thrust arming, which is then poured over with in-situ concrete.

Claims (6)

1. Slipformer for the production of profiled concrete elements (1), comprising a mould part (6) which can be moved on a production line (5) and has insert profiles, at least one compacting device which supplies concrete to the mould part (6) and can be moved on the production line (5), and a feed device (7) which can be moved over the production line (5) for reinforcing the concrete element (1), characterized in that the feed device (7) has a plurality of slots (10) arranged next to one another and is designed in such a way that at least one reinforcing bar (8), which is bent in a corrugated shape, can be introduced by the feed device (7) into the concrete, wherein the reversal bends (11) of one side of the reinforcing bar (8) project into the concrete and the reversal bends (12) of the opposite side project into free space, and the feed device (7) is assigned a feed apparatus (15) for the reinforcing bar (8), which apparatus extends from the feed device (7) to a compactor (9) arranged downstream of the feed device (7).
2. Slipformer according to Claim 1, characterized in that the feed device (7) is arranged downstream of the compacting device which supplies concrete to the mould part (6).
3. Slipformer according to Claim 1 or 2, characterized in that the feed device (7) is designed for introducing a plurality of reinforcing bars (8) arranged behind one another and/or at a distance next to one another.
4. Method for producing a profiled concrete element (1) using a slipformer which operates by the extrusion process, wherein at least one corrugated reinforcing bar (8) is inserted into the concrete, characterized in that the corrugated reinforcing bar (8) is inserted into the concrete in such a way that the reversal bends (11) of one side of the reinforcing bar (8) project into the concrete and the reversal bends (12) of the opposite side project into free space, and the concrete is compacted after the insertion of the reinforcing bar (8), wherein, after insertion into the concrete, the reinforcing bar (8) is guided until such time as the concrete is compacted.
5. Method according to Claim 4, characterized in that a plurality of corrugated reinforcing bars (8) are simultaneously pressed into the concrete parallel and at distance from one another by the corresponding reversal bends (11).
6. Method according to Claim 4 or 5, characterized in that a plurality of reinforcing bars (8) are inserted behind one another into the concrete.

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