DE3003682A1 - Concrete ceiling formwork with connectable beam flanges - which support holder plates, facilitating mechanical dismantling - Google Patents

Abstract

Form boards are attachable between beams, or similar, linking upright supports bearing a form panel at the top of formwork for a concreted ceiling. Each support (2) has a carrier head (7) with one or more holder plates (9) below its form panel (3). At each end, the beam (4) has a flange (10), or similar fixture attachment, connectable to the holder plate. The edge stem pieces on the beams, at right angles to the form skin (5), have fixture points (12) for end faces of form boards (6) brought to abut onto them. This permits engagement by a mechanical device, and safe mechanical lowering and dismantling.

Description

Ceiling formwork The invention relates to a ceiling formwork their upper end a formwork panel having supports connecting the supports Beams or the like. And formwork panels which can be fastened between the beams, the Formwork panels can be stripped out before removing the supports.

Such ceiling formwork is already known. In DE-PS 23 11 544 is, for example, a support device in the area of such a ceiling formwork described, which allows a lowering of the formwork beams without lifting by the support head can be rotated accordingly and then the Lowering of the girder allowed, then such a formwork girder can be attached to the opposite one Unhooked the support and thereby detached it from the composite formwork. Connect the neighboring formwork panels can for their part be unhooked and thus switched off will. Since they are lowered a bit, stands for hanging and being with it required slight lifting or swiveling movement, enough space is available.

There are other such ceiling formwork known that also have based on the principle, first a lowering and then a lowering in the area of the supports To unhook the individual formwork parts.

The above-mentioned unhooking movements require swiveling or lifting movements, which can only be carried out efficiently by hand.

Accordingly, the size of the individual formwork parts is limited so their weight for such a stripping movement by hand is not too great. Corresponding the shuttering and stripping speed is limited. Moreover, this is it Working with the formwork, which -because of the height of such ceiling formwork in the Usually must take place on a ladder, scaffolding or the like, dangerous.

The invention is therefore based on the object of a ceiling formwork of the type mentioned at the beginning of the process - primarily when it comes to shelling - Can attack a mechanical device and has the connection points after their loosening is the detached formwork part or one that is still assembled from several parts Formwork area is supported and carried by this lifting device, so that he then by machine without endangering human workers and with relatively large weight can be lowered.

The solution to this problem is that the support has a support head with at least one holding plate or the like arranged under their formwork plate. Fastening device has that further the formwork support at its ends one flange or the like attachment attachment that can be connected to the retaining plate or the like and that the edge webs or the like lying at right angles to the formwork skin of the formwork girders Fastening points for butt end faces of the formwork panels that can be attached to them to have. This makes everything possible after loosening the connection between the formwork girders and the formwork panels can simply be lowered downwards without the need for swiveling and / or lifting movements are necessary. Is the switchboard or a composite panel This is how easy the connection can be made from underneath by a mechanical lifting device be solved, after which the mechanical lowering can take place.

It is particularly advantageous if the Ilalteplatte or the like.

and the flanges or the like of the formwork beam with one another in harmony bringable holes or the like. Attachment parts for through bolts or the like. Have fasteners and if the flanges of the formwork supports the retaining plate reach under in functional position. Is a formwork sector of slab formwork from Engaged under a lifting device, the through bolts or the like can simply. be solved at the supports, after which the formwork girders and possibly also with it connected formwork can be lowered down without the support or the support head must be moved in some way. In combination with the Measure the butt jointing of the edges of the formwork panels with those of the formwork beams there are different shuttering options at any point in the Slab formwork. It is also to be regarded as a particular advantage that the frontal Attaching formwork panels to the use of existing formwork panels allows webs arranged at their edges at right angles to the formlining, which have corresponding mounting holes in the webs. Such formwork panels are siiid already known and are often used to form walls. Now you can this possibly unchanged in a composite of a ceiling formwork of the above ATt, which is a considerable relief for the user. Conversely, he can also use his slab formwork panels to & c-heal walls. Instead of through bolts, wedge bolts, screws, brackets or the like can also be used. serve for fastening.

1) the advantage described is increased when using round holes at least one lateral recess for inserting a connecting bolt with at least one stop and one that fits through the recess, preferably Pin-like stop are provided, the connecting bolt by turning is securable. Such connecting bolts are also widely used in the field of vertical formwork for connecting formwork panels to one another or also used with additional parts, often with a disc spring at the stop for improvement the connection can be provided. For the slab formwork you can then these existing connecting bolts can also be used Measure that can also help stabilize the slab formwork consist in the fact that on the lower side in the functional position of the bracket preferably in, whose plan can be moved back, protruding laterally in the functional position Projections are provided on which formwork panels can be placed. In this way a loose formwork composite can first be formed before the actual The formwork panels are connected to the formwork beams using the socket pins. Is a formwork panel or a composite formwork raised to the level of the girders can therefore with the support projections which can preferably be pivoted out about a vertical axis a preliminary fixation must be made, after which the actual connection can be done with the through bolt. Conversely, these projections can be used when stripping first be unfolded before the connecting bolts are pulled ilat then the Ilubvorrichtung reached under the formwork panels, the projections can be pivoted away again will. But there is also the possibility of using the formwork panels when stripping to reach under the lifting device, then swivel away the 'projections under the formwork panels and then the. Bolt to pull. So it is practically part of the invention Method which is characterized in that after the supports have been erected the formwork beams and / or the formwork panels individually or after prior connection machine raised to larger surface elements and with the flanges or the like the carrier is lifted from below to the holding plates or the like and connected to it will.

When stripping a formwork area or part of a formwork Lift truck or the like. Subsequently, the formwork area or part of the Remaining formwork released and be drained. As already mentioned, When shuttering, after fastening the formwork girders, the to be connected to them Formwork panels raised flush with the girders, the auxiliary projections of the girders folded out and the formwork panels are temporarily placed thereon, after which they are finally fixed will.

Especially when combining one or more of the above Features and measures results in a ceiling formwork, which in many cases Existing formwork panels with edge bars and the associated fastening bolts with transverse pins and disc springs can be used what storage relieved. Nevertheless, there is a slab formwork in which the shuttering is carried out on and off Lifting movements that go beyond the functional position, often initially lowering make necessary on the supports can be avoided.

Further developments of the invention are the subject of further claims The following is the invention with its essential pertinent details described in more detail with reference to the drawing. It shows: FIG. 1 in a more schematic way Representation of the top view of a possible design of a slab formwork with im Spaced columns, these connecting parallel beams and between them arranged formwork panels, on an enlarged scale Fig. 2 is a perspective view of a support head of a support, FIG. 3 in a perspective representation, a view a carrier serving to connect the supports, FIG. 4 shows the underside of a holding plate of a carrying head with carriers attacking it and continuing one another, Fig. 5 shows a longitudinal section through the carrying head of a support and the connected to it Carrier, FIG. 6 a view of the underside of a ceiling formwork according to the invention, in the case of one support, the two outgoing formwork beams and the ones connected to them formwork panels connected to one another are visible, and FIG. 7 shows a longitudinal section through the formwork panels of the ceiling formwork according to FIG. 6 with a view of the Inside of the edge webs of these formwork panels connected to the formwork beams.

A ceiling formwork designated as a whole by 1 (cf. in particular 1, 6 and 7) has supports 2 which, at their upper end, have a formwork panel 3 to have. The ceiling formwork 1 also includes the supports 2 binding girders 4, wherein in Fig. 3 such a carrier 4 without its skin 5s in Fig. 5 but with this Formwork skin 5 is shown. Finally belong to the ceiling formwork 1 between the girders 4 and the supports 2 attachable formwork panels 6., The formwork panels 6 and also the carrier 4 can be dismantled before removing the supports 2. So that the supports 2 can stay a little longer after concreting.

A support 2, the lower part of which stands up on the ground the better Top view is not shown because of, has a particularly clearly visible in Fig. 2 Support head 7, for example on a tubular lower part with its approach 8 can be attached or plugged into it. However, part 8 could also merge in one piece into the lower part of a support. Under the formwork plate 3 has the support head 7 is parallel to this Formwork plate 3 arranged Retaining plate 9 on. Instead of such a plate 9, another fastening device could also be used be provided.

The formwork support 4 namely has one with this at each of its ends Retaining plate 9 or the like. Connectable flange 10 or the like. Mounting attachment, which protrudes in the longitudinal direction over the narrow side of the carrier 4. They also have Edge webs 11 of the longitudinal side of the girder 4, which are at right angles to the formwork skin 5 Fastening points, elongated holes 12 to be described in the exemplary embodiment, for the end faces of the formwork panels 6 that can be butt attached to them.

It can be seen in particular in FIGS. 2 to 5 that the holding plate 9 of the support or support head 7 and the flanges lo of the formwork support 4 in accordance have holes 13 and 14 which can be brought together for through bolts 15 and that the flanges 10 of the formwork supports 4, the holding plate 9 in the functional position reach under. The flanges lo is so from below with their holes 14 below the holding plate 9 brought with its holes 13, after which the bolts 15 for fixing can be used in this position. Correspondingly-can after stripping after removing the bolts 15, such a carrier 4 can simply be lowered downwards, which is especially advantageous when a mechanical device or the like. engages under the beam when stripping.

In the exemplary embodiment, round holes 13 and 14 with two are mutually exclusive opposite side recesses 13a or

14 a for inserting a connecting bolt 15 with at least one Stop 15 a and a fitting through the recesses 13 a and 14 a, preferably pin-like counter-stop 15 b provided, the connecting bolt 15 through Twisting can be secured. Will the bolt with in the direction of orientation the Recesses 13a and 14a lying pin 15b through the superimposed holes carried out, it then only needs to be rotated 90 ° to complete the entire connection, as shown in FIGS. 4 and 5 to secure. This is where the provided on the bolt 15 handle 15c expediently on the underside of the Formwork.

The holding plate 9 is approximately rectangular in the exemplary embodiment and the width of one side of the rectangle is less than the width of the one acting there Formwork support 4 which facilitates or favors stripping. On every flange 10 of the carrier 4 are provided at least two holes 14, the distance between them corresponds to the distance between the corresponding perforations 13 of the holding plate 9. The width the formwork panel 3 corresponds to that of the formwork support 4, so that these parts 3 and 4 align with each other in the functional position. This allows the formwork panels 6 laterally also-connected in such a way that they overlap the area of the support head 7, as can be seen e.g. in Fig. 1.

In practice, parallel rows of formwork girders 4 can also be used intermediate support heads 7 are formed and can between these rows then the formwork panels 6 can be arranged. This gives a simple and appropriate Formwork composite that can be set up and dismantled quickly for a Slab formwork 1, as shown in FIG. 1.

As already mentioned, those lying at right angles to the formwork facing 5 point Side surfaces or webs 11 of the formwork girder, more 4 perforations, in the exemplary embodiment in the direction of the formwork support 4 oriented elongated holes 12, the keyhole-like Perforations 17 in the edge webs 18 of the formwork panels 6 overlap in the functional position and in the example with the holes 14 and 13 of the flanges 10 and the retaining plate 9 match. This way you can also connect the formwork panels 6 on the girders 4 use the same fastening bolts 15 find (see. Figs. 6 and 7). The slots 12 have the advantage that the Formwork panels 6 are displaced laterally in a practically stepless manner relative to the girders can, so that also differently sized formwork panels 6 or spacers or the like. Can be attached without difficulty regardless of which Total dimensions of the slab formwork 1 should have. In the longitudinal direction of these slots 12 no significant forces are to be expected, so that the clamping effect of the connecting bolts 15, which often still carry a plate spring at their stop 15 a, are sufficient is, especially since the overall composite of the slab formwork 1 also mutually counteract displacement movements secures.

In Figs. 3 to 5 it can be seen that the lower in the functional position Side of the formwork support 4 can be moved back in plan, in the functional position laterally protruding projections 19 are provided on which the peeling boards 6 can be placed. In the exemplary embodiment, these support projections are 19 μm a vertical axis 20 in the functional position in a parallel to the formwork skin 5 Pivotable level.

By this pivoting movement, the projections can either in their Entire are brought under the formwork support 4, so that the lateral webs 11 form the outermost limit of the formwork girders 4, or they can be inserted into the, for example are pivoted in the position shown in Fig. 3. When shuttering, for example after the formwork supports 4 have been attached, the formwork panels to be connected thereto 6 are raised, until they are flush with the supports 4 are. Now the auxiliary projections can be opened out, so the formwork panels 6 can be temporarily placed on it, after which they are finally attached can. It is advantageous to denote the edge webs 18 of the formwork panels and the Edge webs 11 of the carrier and the perforations 12 and 17 arranged therein, respectively are arranged coincidentally, so that after placing the formwork panels 6 on the auxiliary projections 19, the holes to be connected are already at the same height and the bolts can be pushed through easily. The preliminary hang-up the projections 19 has the advantage that there is still longitudinal displacements of the already raised formwork panels are possible to adapt to corresponding neighboring panels, before the final fastening flit the bolt 15 takes place.

The formwork support 4 is essentially made of those already mentioned parallel webs 11 arranged at right angles to the formwork skin 5, in particular flat iron, this at intervals in front of bindings transverse webs 21 as well as one of their upper side covering Formwork skin 5 is preferably made of wood. A formwork support 4 is therefore practical a narrow formwork element adapted to the dimensions of the support head 7 of the supports 2 represents which corresponding connection and fastening points on the one hand to attach on the support heads 7 and on the other hand on the formwork panels 6. The one for stiffening serving transverse webs 21 of the formwork supports 4 can be angle profiles, U-profiles Or the like. And they can be welded to the inside of the edge webs 11. In the exemplary embodiment, the transverse webs 21 simultaneously support the pivot axes 20 for the projections which can be swung in and out 1.9. On the inside of the narrow sides forming outer webs 11 a of the carrier 4 are tabs 11 b to support the Formlining 5 in front.

In Fig. 2 you can see above all that between the forming the formwork skin upper plate 3 and the underneath, parallel in the exemplary embodiment Retaining plates 9 of the support head 7 connecting these two plates and son: it the entire head 7 stiffening intermediate pieces 22, preferably fixed profile pieces, in particular are welded. From the dashed illustration of FIG. 4 goes it emerges that the profile pieces 22 on the support head 7 at least part of the Define the area of the perforations of the ilalteplatte 9. This makes this perforation area, at which later the flanges lo the carrier 4 attack from below, as best as possible reinforced and stiffened without the passage or access to the connecting bolts 15 to complicate or hinder.

In this case, 22 elbow pieces are provided as profile pieces, the ones Shield areas of the respective perforation 13 from the outer edges of the holding plate 9 are turned away so that the bolt area is visible and controllable from there blcibt.

To connect the formwork panels 6 to the edge webs 11 of the formwork beams 4, the already mentioned connecting bolts 15 with cross pin 15 b or the like. Counter-stop be provided; then the outer handle 15 c in the same direction be oriented as the cross pin 15 b, while the keyhole-like holes are oriented horizontally with their greatest extent in the functional position, so that in the locking position the handle 15 c points approximately vertically downwards. In such a case, the gravity acting on the handles 15 c carries helps to keep the bolt in this functional position, even when vibrating forces the formwork can be transferred from the concrete call.

In the exemplary embodiment, however, there is an orientation of the handles 15 c provided at right angles to that of the cross pins 15 b. This is especially true possible if due a disc spring, the clamping force on the bolt-n is increased accordingly..51an then has the advantage that the handles 15 c in the functional position practically all are housed in the outline of the formwork panels and neither a lifting device to be raised for stripping nor any other underneath the formwork can hinder work to be carried out.

The ceiling formwork according to the invention advantageously allows in particular in the equipment provided in the exemplary embodiment that according to the erection of the supports with support heads 7, the formwork supports 4 and / or the Formwork panels 6 individually or after prior connection to larger Ilächenelemcnten lifted by machine and illit the flanges 10 of the carrier 4 from below to the holding plate 9 and connected to them, after which the shuttering is already practical is done. A dangerous and exhausting formwork with muscle power becomes so practically avoided. When stripping a formwork area or part of the formwork be reached under by a pallet truck or the like. Machine device, after which this formwork area or part of the rest of the ceiling formwork 1 and then released is lowered with the aid of the pallet truck.

Another advantage of the formwork according to the invention can be seen in dae few adapted to the special function part, namely the support heads 7 and the carrier 4 suffice to possibly already existing formwork panels 6 also for To be able to use shells from ceilings ..

The possibility of the support heads 7 with the approaches 8 in formwork props plugging in or on such supports also has the advantage that the entire slab formwork with formwork panels, support elements and support heads outside of the building already at least partially assembled, picked up with a crane and four-part sling and can be lowered from above onto the corresponding formwork supports. The after pipe sections or lugs 8 of the support heads 7 pointing downwards are then inserted into the corresponding Holes introduced in the head plates of formwork props. This also gives a machine supported and correspondingly accelerated construction of the corner formwork. Of the Separability of the supports and their supporting heads is therefore of particular importance to.

Another option is to start with rows of supports with their supporting heads and formwork girders in between in the corresponding To set up the distance between the formwork panels to be inserted and, if necessary To connect with spacing scaffolding tubes or the like. Then the formwork panels 6 again placed on the auxiliary projections 19 from above with the help of a piece of love and then with the fastening elements, for example the connecting bolts 15 secured. The auxiliary projections 19 thus also contribute to a Possibility of creating machine-assisted lin formwork.

All shown in the description, the claims and the drawing Features and construction details can be used individually or in any combination are of essential importance to each other.

L e r s e i t e

Claims (19)

Slab formwork claims 1. Slab formwork with at its upper end a formwork panel having supports, supports connecting the supports or the like. and formwork panels which can be fastened between the beams, the formwork panels in front of the Removing the supports can be stripped out, that the support (2) has a support head (7) with at least one gunter its formwork panel (3) arranged holding plate (9) or the like. Fastening device that furthermore the formwork support (4) at its ends each with the lialteplate (9) Or the like. Connectable flange (10) or the like. Attachment approach and that the Edge webs or the like of the formwork beams lying at right angles to the formwork skin (5) Fastening points (12) for butt end faces of the formwork panels that can be attached to them (6) have. 2. Slab formwork according to claim 1, characterized in that the Holding plate (9) or the like. The flanges (Io) 'or the like. of the formwork support (4) in particular in accordance with one another perforations (13) or similar fastening points for push-through bolts (15) or the like. Fastening elements and that the flanges (lo) of the formwork supports (4) reach under the retaining plate (9) in the functional position. 3. Slab formwork according to claim 1 or 2, characterized in that that round holes with at least one lateral recess (13a, 14a) for pushing through a connecting bolt (15) with at least one stop (15a) and one through the recess matching., preferably pin-like counter-stop (15b) is provided are, wherein the connecting bolt can be secured by turning. 4. Slab formwork according to one of claims 1 to 3, characterized in that that the holding plate (9) is approximately rectangular and its width is smaller than the width of the formwork beams (4) and that on each flange (lo) of the beam (4) at least two perforations (14) equidistant from one another as the perforations (13) of the Ilalteplatte (9) are provided. 5. Slab formwork according to one of claims 1 to 4, characterized in that that, at right angles to the formwork skin (5) lying side surfaces (11) of the formwork support (4) perforations, preferably elongated perforations oriented in the direction of the carrier (4) (12) have theXschlnsselochike perforations in the edge webs (18) of the formwork panels (6) reach over in the functional position and preferably with the perforations (13,14) the flange (lo) and the lialteplate (9) match. 6. Slab formwork according to one of claims 1 to 5, characterized in that that preferably on the lower side in the functional position of the formwork support (4) Movable back in the plan., in the functional position laterally protruding projections are provided on which the formwork panels can be placed. 7. Slab formwork according to one of claims 1 to 6, characterized in that that the support projections (19) about a vertical axis in the functional position (Po) can be pivoted in a plane lying parallel to the formwork skin (5). 8. Slab formwork according to one of claims 1 to 7, characterized in that that a formwork support (4) provided with the flanges (10) essentially consists of parallel webs (11) arranged at right angles to the formwork skin (5), in particular Flat iron, these cross webs (21) connecting at intervals and one of their top covering formlining (5) are preferably made of wood. 9. Slab formwork according to one of claims 1 to 8, characterized in that that the transverse webs (21) of the formwork supports (4) used for reinforcement are angular profiles, U-profiles or the like. Are and welded to the inside of the edge webs (11) are. lo. Slab formwork according to one of Claims 1 to 9, characterized in that that the transverse rod (21) the pivot axes (20) for the .and swiveling out Wear projections (19). 11. Slab formwork according to one of claims 1 to lo, characterized in that that between the upper plate (3) forming the formwork skin and the one below preferably parallel tialtplatte (9) of the support head (7) stiffening intermediate pieces (22), preferably fastened profile pieces, in particular welded. 12. Slab formwork according to one of claims 1 to 11, characterized in that that the profile pieces (22) on the support head (7) at least part of the area c the holes (13) of the llalteplatte (9). 13. Slab formwork according to one of claims 1 to 12, characterized in that that as profile pieces (22) angle pieces are provided that those areas of the screen the respective perforations (13) that are exposed from the outer edges of the lialteplate (Y are turned away. 14. Slab formwork according to one of claims 1 to 13, characterized in that that to connect the formwork panels (G) with the edge webs (1-1) of the formwork support (4) connecting bolt (15) with a cross pin (15b) or the like. Counterstops are provided with an outer lland handle (15) is oriented in the same direction as the cross pin (15b), while the keyhole-like Perforation in the functional position with its greatest dimension oriented horizontally are, so that in the locked position, the handle points approximately vertically downwards. 15. 1) corner formwork according to one of claims 1 to 14, characterized in that that the side webs (11) carrier (4) and the edge webs (18) of the formwork panels (6) of starting from the formlining have about the same height and their perforations (12,17) lie at the same height. 16. Slab formwork according to one of the preceding claims, characterized characterized in that the support head (7) protrudes below the llalteplatte (9) Approach (8) for pushing on or plugging into a preferably tubular support Has. 17. Procedure for shuttering and stripping slab formwork with supports, these connecting beams and attached formwork panels in particular after a or more of the preceding claims, d u r c h g e n n n z e i c h n e t that after erecting the supports (2) with the supporting heads (7) the formwork supports (4) and / or the formwork panels (6) individually or after prior connection to form larger ones Surface elements are raised by machine, with the flanges (lö) or the like. the carrier (4) against the 1lalteplatten (9) or the like. Gehracht and be connected to dicsen. 18. The method according to claim 17, characterized in that when off shell a formwork area rader formwork part from a pallet truck or the like. then the formwork area or part is detached from the rest of the slab formwork (1) and is drained. 19. The method nach.Anspruch 17 or 17, characterized in that with Linschalen after attaching the formwork beams (4) to be connected to it Formwork panels (6) are raised flush with the girders (4) or from above into this position lowered, the auxiliary projections (19) of the carrier (4) folded out and the formwork panels on it are temporarily deposited, after which they are finally attached. - Description -