FORMWORK

Description

[0001] The invention relates to a formwork, in particular cornice formwork, comprising: an outer formwork element, an inner formwork element, preferably also a floor formwork element, a support bracket having a horizontal beam, a supporting element, preferably a vertical beam, wherein the first longitudinal end of the horizontal beam of the support bracket is fastened to the supporting element.

[0002] EP 2 210 979 B1 discloses such a formwork device, which can be used, in particular, to manufacture a cornice cap on a bridge. In the manufacture of concrete bridges, a pier structure is provided with a bridge superstructure. The bridge superstructure has a cantilever slab that projects laterally beyond the pier structure. A cornice cap is concreted onto the laterally projecting edges of the cantilever slab. To manufacture the cornice cap, the space to be occupied by the cornice cap is enclosed with formwork elements consisting of an inner shield, an outer shield, and a base shield. In this prior art, the inner shield, the outer shield, and the base shield are mounted on a common formwork holder. The formwork holder is movably mounted on a column element that is rigidly connected to a single working platform.To position the formwork elements—the inner shield, outer shield, and base shield—in the desired position for concreting ("shuttering"), the formwork holder can first be moved vertically using a first adjustment device until the upper end of the vertically aligned inner shield, attached to the formwork holder, rests directly against the underside of the cantilever slab. Subsequently, the outer shield support, which supports the outer shield, is moved horizontally using a second adjustment device until the base shield is clamped between the outer shield and inner shield. Then, the concreting of the closed cornice cap form can begin.

[0003] Once the concrete has hardened, the formwork is removed. For stripping, the first adjustment device first gives the formwork holder freedom of movement in the vertical direction. This allows the formwork holder to fall downwards within a limited range. However, the shields usually hold so tightly against the cornice cap that the formwork holder does not fall initially. With the help of the second adjustment device, the outer shield support is then moved horizontally away from the cornice cap, whereby the cornice cap only rests on the inner shield and the bottom shield. Finally, a tilting device is actuated, with which the formwork holder is tilted upwards about a tilting bearing. Tilting the formwork holder overcomes the adhesive forces between the shields and the cornice cap, whereby the inner shield is peeled off from its upper end to its lower end.After tilting, the shields are spaced from the cornice cap, thus creating the stripped state.

[0004] A disadvantage of this state of the art, however, is that operating the formwork holder is complex, especially when erecting and striking the formwork.

[0005] The further prior art is formed by EP 0 930 408 A1 and DE 10 2007 016724 B3.

[0006] In contrast, the object of the present invention is to alleviate or eliminate at least some of the disadvantages of the prior art.

[0007] This object is achieved by a formwork having the features of claim 1. Preferred embodiments of the invention are specified in the dependent claims.

[0008] According to the invention, the outer formwork element, preferably also the bottom formwork element, is fastened to the support bracket and the inner formwork element is fastened to the support element.

[0009] For the purposes of this disclosure, the location and direction specifications, such as "top", "bottom", "horizontal", "vertical", refer to the mounted use state of the support bracket on the support element.

[0010] The inner formwork element is thus connected to the load-bearing element independently of the support bracket. The inner formwork element is therefore not subject to adjustment of the support bracket, for example a height adjustment and / or tilting of the support bracket. This design is advantageous for several reasons. The inner formwork element can be assembled and adjusted more easily, in particular because the inner formwork element can be attached to the load-bearing element before the bottom formwork element. Striking is also simplified because the outer formwork element and the bottom formwork element can be removed first before the inner formwork element is spaced apart from the concrete body. This creates more space for striking on the inside. Furthermore, striking can be made safer.

[0011] The outer formwork element and the inner formwork element, preferably also the bottom formwork element, can each have a formwork panel with a formwork surface facing the concrete. The formwork panel can be made of wood or metal. Furthermore, at least one formwork support can be arranged on the rear side of the respective formwork panel facing away from the concrete.

[0012] In a preferred embodiment, the inner formwork element is attached to the support element of the support device via a holder, in particular movable between a shuttering position and a stripping position. The holder is preferably adjustably mounted on the support element.

[0013] Depending on the design, the inner formwork element can be moved between the shuttering and striking positions by adjusting the bracket, for example, by linearly shifting the bracket. Alternatively, the bracket can be fixedly mounted to the supporting element.

[0014] To fasten the inner formwork element to the support element, the inner formwork element can be placed on a support or installation surface of the bracket.

[0015] In a preferred embodiment, the holder has an adjusting element, for example an adjusting spindle or an adjusting screw, in particular for moving the inner formwork element between the shuttering and the dismantling position.

[0016] The adjustment element allows the holder to be adjusted in position relative to the support element. In one embodiment, the inner formwork element can be moved with the holder, in particular between the shuttering and stripping positions. In another embodiment, the inner formwork element can be released by adjusting the holder using the adjustment element, i.e., the inner formwork element is given mobility by actuating the adjustment element.

[0017] To facilitate operation, the adjustment element can be accessible on the side of the support element facing the inner formwork element. This allows the adjustment element to be adjusted on the side of the inner formwork element.

[0018] In order to improve the detachment of the inner formwork element from the concrete body, the holder can have at least one oblong hole running at an angle (i.e. at an angle deviating from the horizontal) to the supporting element. In this design, the holder with the inner formwork element can be moved between the shuttering and striking positions by sliding along the oblong hole, in particular by means of the adjusting element. During striking, the holder can be guided with the help of the oblong hole, for example, diagonally downwards, away from the concrete body. This advantageously achieves forced guidance of the holder from the shuttering to the striking position. In this design, the holder can have a holding bracket for the inner formwork element. The holding bracket can be connected to a bearing part on which the adjusting element, for example a setscrew with a nut, is mounted.The adjustment element can be connected to the bracket via a connecting part, for example, a connecting pin. The movement of the connecting part relative to the bearing part can be guided via another elongated hole.

[0019] In a further embodiment, the holder comprises a support bracket mounted on the support element, on which the inner formwork element is arranged. The support bracket can be arranged immovably, i.e., without adjustability, on the support element. In this embodiment, the inner formwork element can be placed on the support bracket.

[0020] Furthermore, it is advantageous if the holder is attached to the support element in a reversibly detachable manner, in particular via at least one securing bolt.

[0021] The support element preferably has a first support profile and a second support profile, preferably each a U-profile. Furthermore, it is advantageous if the first support profile and the second support profile have individual through-openings at the same longitudinal positions. The holder can have at least one through-opening, which can be arranged in alignment with one of the through-openings of the first or second support profile. The holder can be releasably held on the support element by means of the at least one securing bolt.

[0022] In one embodiment, the locking bolt is removed for demolding. In another embodiment, the locking bolt can be accommodated in the elongated hole of the bracket.

[0023] In a further embodiment, the bracket is pivotably attached to the support element. During formwork installation, the inner formwork element can be pressed against the structure by pivoting the bracket in a first direction, for example, in the case of a design as cornice formwork, against a cantilever arm, i.e. a freely projecting side area of the structure, in order to close a gap between the formwork and the structure. For striking, the bracket can be pivoted in a second direction in order to release the tension between the inner formwork element and the structure, in particular to achieve vertical clearance. In addition, the pivoting of the bracket can be used to facilitate dismantling the bracket after striking.

[0024] For a pivotable arrangement of the bracket on the support element, it is advantageous if the bracket is attached to the support element via a locking bolt, wherein the locking bolt forms the pivot axis for pivoting the bracket. In this embodiment, the adjustment element is preferably provided, which is designed in particular as an adjusting spindle or a set screw. The bracket can be pivoted by actuating, in particular by rotating, the adjustment element.

[0025] In a preferred embodiment, the holder comprises a support element, in particular a support bolt, for support on the support element, in particular on the outer side of the support element. The support element is preferably arranged in a slotted guide of the holder. In this embodiment, the adjustment element is preferably configured to adjust the support element along the slotted guide in order to adjust the angle of the holder to the support element.

[0026] According to the invention, the bracket comprises, particularly on the rear side of the inner formwork element, a stripping wedge, preferably made of metal, which is movable along the support element. The stripping wedge has a wedge surface on the side facing the inner formwork element. Due to the wedge shape, horizontal clearance is achieved during stripping when the stripping wedge is moved.

[0027] The stripping wedge preferably has at least one retaining opening, with which the stripping wedge is guided along the support element, in particular in the longitudinal direction of the support element. For example, the support element can have the first and second support profiles, on which the stripping wedge is guided via two retaining openings.

[0028] Preferably, the stripping wedge is mounted on the supporting element in a reversibly detachable manner. During installation, the stripping wedge can preferably be pushed onto the supporting element from above.

[0029] In a formwork setting position, the stripping wedge is arranged in a first, in particular a lower, position on the support element. In the formwork setting position, the inner formwork element is arranged adjacent to the stripping wedge. Preferably, an intermediate wedge, in particular a wooden wedge, is arranged, in particular loosely, between the stripping wedge and the inner formwork element. Depending on the design, a support member, for example a wooden support, can also be arranged between the inner formwork element and the stripping wedge. In a preferred design, the holder is pivoted in the first direction in the formwork setting position in order to press the inner formwork element against the structure.

[0030] In a stripping position, the stripping wedge is moved, in particular with a tool, for example with a striking tool such as a hammer, along the support element from the first position to a second, in particular upper, position. For this purpose, the stripping wedge can have, in particular on the underside, a striking part, in particular a striking plate, which forms a striking surface for a striking tool. When the stripping wedge is moved from the first to the second position, the wedge surface of the stripping wedge can slide along the corresponding wedge surface of the intermediate wedge. By moving the stripping wedge, a particularly horizontal release of the inner formwork element is achieved. In the stripping position, the inner formwork element can be moved away from the concrete element in a horizontal direction.Depending on the design, the bracket can be pivoted in the second direction in the stripping position in order to release the pressing of the inner formwork element with the structure.

[0031] For disassembly, the wedge element can be completely removed from the support element, in particular from the upper end of the support element.

[0032] In a preferred embodiment, a first adjustment device is provided for adjusting the height of the horizontal beam of the support bracket relative to the supporting element of the formwork. Preferably, the first adjustment device comprises a slotted guide with a guide slot for a guide pin, extending diagonally to the horizontal beam.

[0033] In many applications, it is also advantageous to provide a second adjustment device with a second actuating element for adjusting the inclination of the horizontal beam relative to the formwork support element. It is particularly advantageous if the horizontal beam can be adjusted both in height and in inclination relative to the support element.

[0034] The inner formwork element does not follow the adjustment of the support bracket via the first and, if applicable, the second adjustment device.

[0035] In a preferred application, the formwork is designed as cornice formwork. A cornice is understood to be the freely projecting edge area of a structure, for example, a bridge. A cornice cap can be created using the cornice formwork. Preferably, an outer formwork element, and preferably also a base formwork element, are mounted on the horizontal beam. The outer formwork element can preferably be fixed in various longitudinal positions along the horizontal beam using an adjustment device.

[0036] In many applications, especially with cornice formwork, it is advantageous if a platform support for a working platform is mounted below the horizontal beam of the support device. The first adjustment device, and in particular also the second adjustment device, can be operated from the working platform. Preferably, only a single working platform is mounted below the horizontal beam of the support device, in particular on the support element.

[0037] The invention further relates to a structure comprising a concrete component, for example a cornice cap, and a formwork in one of the previously described embodiments. The formwork is (temporarily) connected to the concrete component.

[0038] The outer formwork element and the inner formwork element, preferably also the bottom formwork element, define a space in a shuttering position that is filled with concrete to create the desired concrete body, in particular a cornice cap. The inner formwork element is arranged on the cornice side, while the outer formwork element is arranged on the side facing away from the cornice.

[0039] The invention is further explained below using preferred embodiments in the drawings. Fig. 1A shows a diagrammatic view of a formwork for concreting a cornice cap, in which a support device with a series of height- and angle-adjustable support brackets is provided. Fig. 1B shows a side view of the formwork according to Fig. 1A Fig. 2 shows a diagrammatic view of the support device in the mounted state on a supporting element in the form of a vertical beam. Fig. 3 shows a side view of the support device when mounted on the vertical support. Fig. 4 shows a longitudinal section through the support device in the mounted state on the vertical support. Fig. 5 shows a side view of the support device in an upper end position of the support console. Fig. 6 shows a longitudinal section of the support device in the upper end position of the support console. Fig. 7 shows a side view of the support device in a lower end position of the support console. Fig. 8 shows a longitudinal section of the support device in the lower end position of the support console. Fig. 9 and Fig. 10 show an alternative design variant of the support bracket, in which a diagonal strut is supported on the vertical beam via a pair of rollers. Fig. 11 shows a diagrammatic view, Fig. 12 a side view and Fig. 13 a longitudinal section of the support bracket with an alternative design variant of the inclination adjustment. Fig. 14A shows a diagrammatic view and Fig. 14B a side view of the support bracket in the mounted state on the supporting element, whereby a holder for an inner formwork element, i.e. an inner shield, is also mounted on the supporting element. Fig. 14C, Fig. 14D und Fig. 14E show an alternative design of the bracket for the inner formwork element in the mounted state on the supporting element. Fig. 14F shows another alternative design of the bracket for the inner formwork element in the mounted state on the supporting element. Fig. 15A shows a side view of the support console, showing the extent of the height adjustment. Fig. 15B shows that in Fig. 15A highlighted detail A. Fig. 16 shows a tunnel formwork in which a working platform is supported by the support bracket on the supporting element, here the outer formwork. Fig. 17 shows a single-sided formwork in which a working platform is supported on the rear side of a support frame using the support bracket. Fig. 18 shows a version of the support bracket in the mounted state on the vertical support. Fig. 19 bis Fig. 25 show different views of another embodiment of the holder for the inner formwork element.

[0040] Fig. 1 shows a formwork 1 which, in the embodiment shown, is fastened as cornice formwork to a cornice 2, i.e. to a preferably substantially horizontally extending, laterally freely projecting edge region of the structure 3, in this case a bridge. For this purpose, the cornice formwork has a support device 4 with diagonal compression struts 5 and load-bearing elements, in this case vertical beams 6, which are each fastened parallel and at horizontal distances from one another to the underside of the cornice 2. The support device 4 also has a working platform 7 which has a covering 8 with a horizontal working surface. At the rear longitudinal edge of the working platform 7, i.e. on the long side facing away from the cornice 2, a railing 9 with vertical railing beams 10 and horizontal protective elements 11 is arranged.

[0041] In the embodiment shown, the support device 4 further comprises a plurality of support brackets 12, each of which has a horizontal beam 13 with a first longitudinal end 13A and a second longitudinal end 13B. The horizontal beams 13 are mounted with their first longitudinal ends 13A to the vertical beams 6. The support brackets 12 also each have a diagonal strut 14 for supporting the horizontal beam 13 from below.

[0042] The horizontal beams 13 support a first formwork device 15 and a second formwork device 16, with which, in the embodiment shown, a cornice cap 17 can be produced on the cornice 2. The first formwork device 15 has first formwork supports 18, which are arranged on the upper sides of the horizontal beams 13, in particular substantially perpendicular thereto. The first formwork supports 18 support a bottom formwork element 19, here a formwork panel, with which, in the embodiment shown, a substantially horizontal formwork surface is formed. The second formwork device 16 has second formwork supports 20 and an outer formwork element 21, here a further formwork panel, with which, in the embodiment shown, a substantially vertical formwork surface is formed.The second formwork device 16 is positioned using essentially vertical cornice clamps 22, which are arranged on the horizontal beams 13 of the support brackets 12 and are adjustable in the horizontal direction. The cornice clamps 22 are supported at the rear by diagonal support struts 22A on the horizontal beams 13. The support struts 22A are telescopic such that the inclination of the cornice clamps 22 is adjustable. Thus, the cornice clamps 22 can be arranged not only in a vertical position, but also in a position inclined to the vertical.

[0043] As from Fig. 2 and Fig. 3 As can be seen in detail, the support bracket 12 has a first adjustment device 23 with a first actuating element 24 for adjusting the height of the horizontal support 13 relative to the vertical support 6. The first actuating element 24 for adjusting the height of the horizontal support 13 is freely accessible at the second longitudinal end 13B of the horizontal support 13 facing away from the vertical support 6, so that easy adjustment from the work platform 7 is possible.

[0044] As from Fig. 4 As can be seen, the first adjustment device 23 has a first force transmission element 25, which here is formed by a first spindle 25A. By actuating the first actuating element 24, a force is exerted by the force transmission element 25 in the longitudinal direction of the horizontal support 13, i.e. in the direction of its pronounced longitudinal extent, which force, as will be explained in more detail later, is converted into the height adjustment of the horizontal support 13. The horizontal support 13 has an elongated hollow profile 26 in which the first spindle 25A is arranged. The first spindle 25A extends over more than 3 / 4 of the length of the horizontal support 13, from its outermost to its innermost point in the horizontal direction.

[0045] In the embodiment shown, the first adjustment device 23 has a sliding guide part, hereinafter referred to as the sliding guide 27, with which an adjustment essentially in the longitudinal direction of the horizontal support 13 is converted into the height adjustment of the horizontal support 13. The sliding guide 27 has a guide slot 28 which runs at an angle of essentially 45° to the longitudinal axis of the vertical support 6 (which is vertical in the assembled state). A guide pin 29 is mounted in the guide slot 28 and is fixedly mounted on the vertical support 6 with respect to the height adjustment. The guide slot 28 is provided on a sliding part in the form of a sliding plate 30 which, when the first spindle 26 is adjusted, is displaced essentially in the longitudinal direction of the horizontal support 13 within a mounting housing 31 at the first longitudinal end 13A of the horizontal support 13.The mounting housing 31 has an upper guide part in the form of an upper guide plate 32A and a lower guide part in the form of a lower guide plate 32B, between which the sliding plate 30 is guided with a substantially precise fit on the top and bottom sides. In the embodiment shown, two identical sliding plates 30 are provided, which are guided on the same guide pin 29.

[0046] As from Fig. 5 As can be seen, the mounting housing 31 has a vertical slot 33 on each side (relative to the horizontal neutral position of the horizontal support), in which the guide pin 29 of the link guide 27 is guided. The vertical slots 33 enable the up and down movement of the support brackets 12 during height adjustment.

[0047] The vertical support 6 consists of a first support profile 6A and a second support profile 6B (cf. Fig. 2 ), which are arranged parallel and at a horizontal distance perpendicular to the horizontal support 13. Depending on the design, the first support profile 6A and the second support profile 6B can each be a U-profile. A gap is formed between the first support profile 6A and the second support profile 6B, into which gap the mounting housing 31 is inserted at the first longitudinal end 13A of the horizontal support 13. The first support profile 6A and the second support profile 6B each have individual through-openings 34 at the same longitudinal positions, so that the guide pin 29 can optionally be arranged at different height positions. With the help of the pairs of through-openings 34, a rough adjustment of the height of the horizontal support 13 can be carried out. The first adjusting device 23 enables a fine adjustment of the height of the horizontal support 13.By actuating the first actuating element 24, the support bracket 12 moves upwards or downwards, depending on the direction of actuation, while maintaining the inclination of the horizontal beam 13. The diagonal strut 14 is supported on the vertical beam 6 via a thrust bearing 35. In the version of the . Fig. 1 bis 8 The thrust bearing 35 has sliding surfaces 35A, which can slide on an outer side of the vertical support 6. The diagonal strut 14 is connected to the mounting housing 31 via a connecting lever 14A, which is shorter than the diagonal strut.

[0048] The height adjustment of the horizontal beam 13 is described below using the Figuren 4 bis 8 described.

[0049] Fig. 4 shows the horizontal support 13 in a starting position in which the guide pin 29 is arranged in the center of the longitudinal slots 28 of the sliding plates 30. To raise the horizontal support 13, the first actuating element 24 is rotated in one direction of rotation using a tool. This rotational movement is taken over by the first spindle 25A, which is in threaded engagement with a first nut 25B at the end opposite the actuating element 24. As a result, the first spindle 25A is screwed further into the first nut 25B. This adjustment of the first spindle 25A in the longitudinal direction of the horizontal support 13 causes the sliding plates 30 to move sideways within the mounting housing 31, whereby the guide pin 29 is displaced relative to the sliding plates 30 along the guide slot 28.The sliding plates 30 rest on the inside of the mounting housing 31, so that the lateral movement of the sliding plates 30 is converted into the upward movement of the horizontal beam 13 with the mounting housing 31 and the hollow profile. In the . Fig. 5 und 6 the maximum lifting of the horizontal beam 13 is shown, with the guide pin 29 attached to the lower end of the guide slot 28.

[0050] The lowering of the horizontal beam 13 is effected by turning the actuating element 24 in the opposite direction. This further unscrews the inner end of the first spindle 25A from the nut 25B. The sliding plates 30A move inward, the guide pin 29 moves upward along the guide slot 28, and the horizontal beam 13 is lowered accordingly. The maximum lowering of the horizontal beam is in the Fig. 7 und 8 shown.

[0051] As can be seen from the sectional views of the Fig. 4 , 6 and8 As can be seen, two holding plates 25C are provided inside the hollow profile of the horizontal beam 13, each with a passage opening for the first spindle 25A, in order to support the first spindle 25A over its length.

[0052] Fig. 9 and Fig. 10 show an alternative design variant in which the thrust bearing 35 at the inner end of the diagonal strut 14 is formed by a pair of rollers 35B. The pair of rollers 35B rolls on the outside of the vertical support 6 during the height adjustment of the support bracket 12.

[0053] As from Fig. 2 bis 10 As can be seen, the support brackets 12 each have a second adjusting device 36 with a second actuating element 37 for adjusting an inclination, i.e. an oblique position to the horizontal, of the horizontal support 13. The horizontal support 13 can therefore be arranged not only in an exactly horizontal position, but also in a position inclined to the horizontal. Like the first actuating element 24 for the height adjustment, the second actuating element 37 for the inclination adjustment is freely accessible at the second longitudinal end 13B of the horizontal support 13 facing away from the vertical support 6. Thus, a height adjustment and an inclination adjustment can be carried out independently of one another at the outer end of the horizontal support 13.The second adjustment device 36 has a second force transmission element 38 connected to the second actuating element 37, a second spindle 39 in the embodiment shown, and a spindle receptacle 40 in the form of a second nut connected to the outer end of the diagonal strut 24. By rotating the second spindle 39 with the aid of the second actuating element 37, the spindle receptacle 40 moves inward or outward depending on the direction of rotation. This changes the inclination of the diagonal strut 14, which is articulated at the inner end to the connecting lever 14A and at the outer end to a spindle housing 41 mounted on the underside of the horizontal support 13. The second spindle 39, which can be shorter than the first spindle 25, is accommodated inside the spindle housing 41.

[0054] In Fig. 11 bis 13 An alternative embodiment of the second adjustment device 36 is shown, in which the diagonal strut 14 is designed as a spindle strut. The spindle strut has a central part 42C, which forms a first and a second nut element (one left-handed, the other right-handed) at the ends. A first spindle element 42A and a second spindle element 42B are screwed into these nut elements (also a left-handed and a right-handed spindle element). If the central part 42C of the spindle strut is rotated by means of a handle 43, here a pivot pin, the spindle elements 42A, 42B approach each other or move away from each other, depending on the direction of rotation.

[0055] Fig. 15A und Fig. 15B show in detail a design variant in which a viewing window 31A is formed on the mounting housing 31, which provides a view of a marking 30A on the sliding plate 30. Depending on the position of the sliding plate 30, the marking 30A moves along the viewing window 31A. Thus, the extent of the height adjustment is signaled to the operator via the relative position of the marking 30A to the viewing window 31A on the mounting housing 31. Above the viewing window 31A, a scale 31B is provided, on which an absolute value of the height adjustment relative to the center position is indicated. Advantageously, the height position can be preset in this way without measuring instruments. Furthermore, the height position can be read at any time.

[0056] As from Fig. 1A and Fig. 1B, the cornice formwork 1 also has an inner formwork element 60, which, however, is not mounted on the support bracket 12, but on the vertical support 6 of the support device 4 in a reversibly detachable manner.

[0057] Fig. 14A and Fig. 14B show a first embodiment of a holder 61, with which the inner formwork element 60 is fixed between the Fig. 1A and Fig. 1B shown shuttering position and a stripping position spaced from the cornice cap relative to the vertical beam 6.

[0058] In the embodiment of the Fig. 14A , 14B the first support profile 6A and the second support profile 6B have, on their mutually facing base surfaces, pairs of openings spaced apart in the vertical direction, here the through-openings 34 for the locking pin 29, which are arranged in alignment with through-openings of the holder 61.

[0059] By means of securing bolts 63, the bracket 61 is releasably held on the vertical beam 6. The bracket 61 also has an adjusting element 66, here an adjusting spindle 61A. For striking, the inner formwork element 60 is spaced from the concrete by actuating the adjusting element 66. In the embodiment of the Fig. 14A and Fig. 14B The inner formwork element 60 is adjusted in the longitudinal direction of the horizontal beam 13. The securing bolts 63 are then removed and the inner formwork can be dismantled.

[0060] In the Fig. 14C, Fig. 14D und Fig. 14E a further embodiment of the holder 61 is shown, which in turn is mounted on the vertical support 6 via the securing bolts 63. In this embodiment, the holder 61 has a holding bracket 70 with at least one elongated hole 65 running obliquely to the vertical support 6, here with two parallel elongated holes 65, each running obliquely to the vertical support 6, in which at least one, here two, securing bolts 63 are arranged. The holding bracket 70 is connected to a bearing part 71, on which an adjusting element 66, here an adjusting screw with a nut, is mounted. The adjusting element 66 is connected to the holding bracket 71 via a connecting part 72, here a connecting pin. The movement of the connecting part 72 is guided via a further elongated hole 73. By means of the adjusting element 66, the inner formwork element 60 can be moved obliquely downwards from the shuttering to the striking position.The operating area of the adjustment element 66 is arranged on the same side as the inner formwork element 60 with respect to the vertical support 6.

[0061] In the Fig. 14F A further embodiment of the bracket 61 is shown. In this embodiment, the bracket 61 has a support bracket 67, which is mounted stationary or immovable on the vertical support 6 by means of the securing bolts 63. The inner formwork element 60 is supported on the support bracket 67. A spacer 68, particularly made of wood, can be arranged between the inner formwork element 60 and the vertical support 6. For stripping, the support bracket 67 is removed. For this purpose, the securing bolts 63 with which the support bracket 67 is attached to the vertical support 6 are removed. The inner formwork element 60 can then be removed.

[0062] Fig. 16 shows a design of formwork 1 as tunnel formwork 44 with an inner formwork 45 and an outer formwork 46. With the tunnel formwork 44, a tunnel segment with an arched cross-section can be produced. In this design, the support bracket 12 is mounted on the outer formwork 46, which here forms the load-bearing element. The horizontal beam 13 of the support bracket 12 is designed as a platform support for a work platform 47 with a (here horizontal) work surface for workers. A railing post 48 for attaching protective parts 49 is arranged at the second (outer) longitudinal ends 13B of the horizontal beam. The inclination adjustment allows the work surface for the operating personnel to be aligned horizontally. This is advantageous due to the different cross-sections of the tunnels.

[0063] Fig. 17 shows a design of formwork 1 as a single-sided formwork 50, which is supported by a support frame 51. In this design, the horizontal beam 13 of the support bracket 12 is also designed as a platform support, on which a work platform 47 is arranged. The support bracket 12 is detachably mounted on the support frame 51, which forms the supporting element in this design.

[0064] Fig. 18 shows a detailed view of the support bracket 12, which in the application shown supports the working platform 47 from below. The support bracket 12 is mounted on the vertical beam 6. However, the support bracket 12 can also be attached to other supporting elements, such as the outer formwork of the tunnel formwork 44 ( Fig. 16 ) or the support frame 51 ( Fig. 17 ) can be mounted.

[0065] Fig. 19 bis Fig. 25 show a further embodiment in which the holder 61 can be arranged in different pivoting positions on the support element.

[0066] In the design of the Fig. 19 bis Fig. 25 The bracket 61 is mounted to the support element via a single securing bolt 63. The securing bolt 63 defines the pivot axis for pivoting the bracket 61. The bracket 61 also has a support element 69, in particular a support bolt, which is supported on the outside of the first 6A and second support profile 6B in every pivot position. The support element 69 is arranged in a slotted guide 70. By adjusting, here rotating, the adjusting element 66, the support element 69 moves along the slotted guide 70, pivoting the bracket 61 about the pivot axis.

[0067] In the design of the Fig. 19 bis Fig. 25 The bracket 61 also has a stripping wedge 71, which is mounted on the support element in a reversibly detachable manner, in the embodiment shown via a plug-in connection. For this purpose, the stripping wedge 71 has two openings 71A, with which the stripping wedge 71 can be moved along flanges of the first support profile 6A and the second support profile 6B. With the help of the openings 71A, the stripping wedge 71 is held on the support element and secured against being pulled off in the horizontal direction. The stripping wedge 71 has a wedge surface 72 inclined forward to the vertical, towards the side facing the concrete.

[0068] Fig. 19 and Fig. 20 show the bracket 61 without the inner formwork element 60. According Fig. 21 and Fig. 22 The inner formwork element 60 is placed on a support or installation surface of the holder 61 (horizontal in the illustrated state). A correspondingly inclined wedge surface of an intermediate wedge 73 rests against the wedge surface 72 of the stripping wedge 71. In the illustrated embodiment, a support member 74, here a support timber, is also arranged between the inner formwork element 60, here a formwork panel, and the intermediate wedge 73.

[0069] During shuttering, the bracket 61 is first attached to the supporting element 6 by means of the securing bolt 63. For this purpose, the securing bolt is arranged with a substantially precise fit on one of the pairs of through-openings 34 of the first 6A and second supporting profile 6B. The stripping wedge 71 is pushed onto the supporting element 6 from above. In the embodiment shown, the intermediate wedge 73, the support part 74 and the inner formwork element 60 are placed on the supporting surface of the bracket 61. The inner formwork element 60 can then be pressed against the underside of the laterally freely projecting edge region of the structure 3 by pivoting the bracket 61 by means of the adjusting element 66. For this purpose, the bracket 61 can be Fig. 19 and Fig. 21 The neutral position shown with the installation surface for the inner formwork element 60 horizontally arranged can be pivoted in the first direction, here upwards. The remaining components of the formwork 1, in particular the support bracket 12, are then assembled.

[0070] During stripping, the procedure is reversed. The inner formwork element 60 is finally dismantled. The stripping wedge 71 is moved upwards along the supporting element. For this purpose, the stripping wedge 71 has at least one striking plate 75 on its underside, which is struck from below with a hammer. In the embodiment shown, two striking plates 75 are provided, which also provide lateral guidance for the lower end of the stripping wedge 71. By moving the stripping wedge 71, the inner formwork element 60 is released in the horizontal direction. If the inner formwork element 60 was previously pressed against the structure by pivoting the holder 61 upwards, the inner formwork element 60 can be released, preferably after the stripping wedge has been released, by pivoting the holder 61 downwards in the vertical direction (see Fig. 23 bis Fig. 25 ).

Claims

1. Formwork (1), in particular cornice formwork, comprising an outer formwork element (21), an inner formwork element (60), preferably also a floor formwork element (19), a support bracket (12) comprising a horizontal beam (13), a supporting element, preferably a vertical beam (6), wherein the first longitudinal end (13A) of the horizontal beam (13) of the support bracket (12) is attached to the supporting element, the outer formwork element (21), preferably also the floor formwork element (19), is fastened to the support bracket (12) and the inner formwork element (60) is fastened to the supporting element, whereiun the inner formwork element (60) being afastened to the supporting element via a holder (61), characterised in that the holder comprises a formwork wedge (71) which is displaceable along the supporting element, wherein the formwork wedge (71) comprises a wedge surface on the side facing the inner formwork element (60) and, due to the wedge shape, a horizontal release of the inner formwork element (60) is achieved during stripping when the formwork wedge (71) is displaced.

2. Formwork (1) according to claim 1, characterised in that the holder (61) comprises an adjusting element (66), for example an adjusting spindle (61A).

3. Formwork (1) according to claim 2, characterised in that the adjusting element (66) is accessible on the side of the supporting element facing the inner formwork element (60).

4. Formwork (1) according to one of claims 1 to 3, characterised in that the holder (61) comprises a support angle (67) mounted on the supporting element, on which the inner formwork element (60) is arranged.

5. Formwork (1) according to one of claims 1 to 4, characterised in that the holder (61) is detachably fastened to the supporting element, in particular via at least one securing bolt (63).

6. Formwork (1) according to one of claims 1 to 5, characterised in that the holder (61) comprises an elongated hole (65) extending obliquely to the supporting element (6).

7. Formwork (1) according to one of claims 1 to 6, characterised in that the holder (61) is pivotably attached to the supporting element.

8. Formwork (1) according to claim 7, characterised in that the holder (61) is fastened to the supporting element via a securing bolt (63), wherein the securing bolt (63) forms the pivot axis for the pivoting of the holder (61).

9. Formwork (1) according to one of claims 1 to 8, characterised in that the formwork wedge (68) is detachably connected to the supporting element, in particular via a plug-in connection.

10. Formwork according to one of claims 1 to 8, characterised in that the holder (61) comprises a supporting element (69), in particular a support bolt, for support on the supporting element, in particular on the outside of the supporting element.

11. Formwork according to claim 10, characterised in that the supporting element (69) is arranged in a slotted guide (70) of the holder (61).

12. Formwork according to claim 11, characterised in that the adjusting element (66) is set up to adjust the supporting element (69) along the slotted guide (70) in order to adjust the angle of the holder (61).