Method for moving a ceiling formwork, collision protection element, as well as ceiling formwork, support device and incremental launching device with such a collision protection element

Description

[0001] The invention relates to a method for moving a slab formwork into the next concreting cycle with a next concreting section to be concreted, in which first and second support devices arranged next to one another in a displacement direction are arranged below the next concreting section to support the slab formwork. Furthermore, the invention relates to an arrangement comprising a collision protection element for preventing collision with the front end of a slab formwork and an incremental launching device with such a collision protection element.

[0002] In the incremental launching method, which is used in bridge construction, for example, a slab formwork is moved or pushed from one concreting cycle to the next. For this purpose, an existing slab formwork is stripped, i.e. lowered from a concreting level required for concreting, moved or pushed horizontally into the next concreting cycle and then pushed up or lifted to the required concreting level and adjusted. The lifting and adjusting of the slab formwork is also referred to as shuttering and is usually carried out using jacks and / or props and / or spindle devices in order to reach and maintain the concreting level. However, particularly in the edge area of a bridge trough, accessibility for height adjustment is poor due to sloping walls, which makes shuttering labor-intensive and time-consuming for the worker on site and therefore costly for the client or contractor.makes it costly for property developers.

[0003] Document DE 3527470 A1 discloses a method for moving a slab formwork. Document DE 102015223762 A1 discloses an arrangement for producing a concrete slab.

[0004] The object of the present invention, in contrast, is to provide a method for moving a slab formwork that simplifies and accelerates the lifting and setting up of the slab formwork while avoiding the described disadvantage of the prior art. Furthermore, the method is intended to reduce the potential for errors during formwork installation without increasing the number of necessary tools such as jacks.

[0005] This object is achieved according to the invention by a method for shifting a slab formwork into the next concreting cycle according to claim 1, an arrangement according to claim 14 and also according to claim 16, and an incremental launching device according to claim 17. The subclaims represent preferred developments.

[0006] The object of the invention is thus achieved by a method for moving a slab formwork into the next concreting cycle with a next concreting section to be concreted, in which first and second support devices are arranged along a direction of movement, in particular on a side wall, for example an edge region of a bridge trough, to support the slab formwork below the next concreting section, which support devices each have a shuttering position and a striking position as working positions, wherein when the slab formwork is supported by the support device in the shuttering position, the slab formwork is raised to a concreting level and in the striking position is lowered relative to the concreting level. The first support device is moved into the striking position orbrought and the second support device arranged relative to the first support device in the direction of displacement is moved or brought into the formwork position. This is followed by arranging a collision protection element between the second support device and an end face of the slab formwork when the end face of the slab formwork impacts the second support device after the first support device has passed over it, so that the collision protection element forms a flank rising in the direction of displacement for guiding the slab formwork in the direction of displacement, and the end face of the slab formwork is raised to the concreting level, guided by the collision protection element, so that the second support device is passed over by the slab formwork.

[0007] According to the invention, at least two support devices are arranged along the displacement direction below the next concreting section to be concreted in the next concreting cycle, wherein the first support device is in the stripping position and the second support device, arranged directly or indirectly next to the first support device in the displacement direction, is in the shuttering position before the slab formwork has passed over the second support device. The first and second support devices can be arranged adjacent to one another, or at least one other support device can be arranged between the first and second support devices, wherein the other support device is moved into the stripping position or into a position between the stripping position and the shuttering position (EP). One or more other support devices can therefore be arranged between the first and second support devices.The one or more other support devices can also each be offset into the stripping position. The one or more other support devices can also be offset into a position between the stripping position and the shuttering position at the same height. The collision protection element is then arranged between the support device arranged adjacent to the first support device in the direction of displacement and an end face of the slab formwork upon impact of the end face of the slab formwork after passing over the first support device. The collision protection element is also arranged between the second support device and an end face of the slab formwork upon impact of the end face of the slab formwork after passing over the other support device adjacent to the second support device in the opposite direction to the direction of displacement.

[0008] A ramp rising in the direction of displacement consisting of several other support devices with positions between the striking position and the forming position at different heights is also possible, in which case the collision protection element is arranged between each other support device and an end face of the slab formwork upon impact with the end face of the slab formwork after passing over the other support device adjacent to this other support device in the direction opposite to the direction of displacement. The collision protection element can be arranged on the end face of the slab formwork and / or on each of the support devices, respectively in and / or against the direction of displacement. The flank rising in the direction of displacement sweeps over a height difference that corresponds at least to the height difference due to different positions that occurs between adjacent support devices.If the flank rising in the direction of displacement covers a height difference that corresponds at least to a height difference between the stripping position and the shuttering position, the collision protection element can be used for any height difference between adjacent support devices.

[0009] The formwork setting and stripping positions can be assumed by the support device by means of a lowering device arranged on a support element of the support device as part of the support device, which is designed to displace the slab formwork vertically relative to the support device without a lowering device. Alternatively or additionally, each of these positions can be achieved by adjusting a variable length of a support element of the support device that is at least partially vertically aligned in the supported state, for example in the form of a telescope, a spindle, or a lifting device.

[0010] If further support devices in the previous concreting cycle are in the stripping position in order to be able to move the slab formwork into the next concreting cycle, the front side of the slab formwork in the displacement direction, which the first support device has moved over in the stripping position, would move onto the second support device, since this support device is in the shuttering position and, in contrast to the other support devices, which are lowered relative to the concreting level, is raised to the concreting level.This collision with the second support device is prevented by placing a collision protection element between the second support device and the front of the slab formwork at the time the front of the slab formwork hits the second support device. The collision protection element forms a flank that rises in the direction of displacement to guide the slab formwork in the direction of displacement, which allows the front of the slab formwork to be raised by the collision protection element to the concreting level. The front of the slab formwork thus gives way to the second support device upwards and therefore travels over the second support device. The support devices can be moved manually and / or by means of electrical, pneumatic and / or hydraulic force introduction into the formwork forming and striking positions as working positions.

[0011] A collision between the front of the slab formwork and the second support device is therefore consciously accepted when the slab formwork is moved, and driving into the second support device in such a way that the front of the slab formwork is stopped by the second support device is avoided by arranging the collision protection element with a flank that rises in the direction of displacement. Instead, the guidance of the collision protection element lifts the slab formwork during the collision and raises the front of the slab formwork to the concreting level so that the second support device is driven over by the slab formwork. This method therefore allows at least part of the slab formwork to be lifted with the front in the direction of displacement to the concreting level before the slab formwork has been moved into the next concreting cycle.Instead of waiting until after a horizontal shift into the next concreting cycle, i.e., a complete shift of the slab formwork below the next concrete section to be concreted, to raise and adjust the slab formwork to the required concreting level, i.e., to formwork, the formwork is started immediately after the horizontal shift. This procedure accelerates the construction process compared to conventional formwork removal and re-forming and reduces the potential for errors because, unlike the state of the art, no additional intervention by a construction worker is required when raising the front end of the slab formwork to the concreting level in the final process step.

[0012] Instead, the slab is raised to the concreting level by moving the anti-collision element over the second support device. The anti-collision element partially converts the horizontal movement of the slab formwork in the direction of displacement into a vertical movement for raising it to the concreting level when the slab formwork collides with the second support device. This saves time and, at least in part, eliminates the lifting and setting up of the slab formwork, which would otherwise follow the horizontal movement separately. Since only the existing support devices can be used, no additional tools such as jacks, jacks, etc. are required.By combining the second support device in the formwork position before formwork is erected with the collision protection element and the front side of the slab formwork at the time of collision of the slab formwork with the second support device according to the invention, the formwork of the slab formwork can be simplified and accelerated.

[0013] The slab formwork can be a known slab formwork, in which the collision protection element is attached, for example, to the front end in the direction of displacement. Alternatively or additionally, the collision protection element can also be attached at one end to the second support device and, if necessary, to additional support devices. Retrofitting existing slab formwork and / or support devices with the collision protection element to implement the method according to the invention for moving the slab formwork is therefore easily possible.

[0014] Advantageously, by shifting the slab formwork into the next concreting cycle, the slab formwork is at least partially raised to the concreting level, so that not only the front end in the direction of shifting, but also a larger portion of the slab formwork is at the concreting level. This reduces the effort required to enclose the remaining part of the slab formwork, which is not (yet) at the concreting level but is lowered below it.

[0015] Once the first support device is moved into the shuttering position after the slab formwork has been moved into the next concreting cycle, the slab formwork can be fully raised to the concreting level. If not only the first and second support devices support the slab formwork below the next concreting section, but additional support devices also support the slab formwork, these additional support devices must also be moved or held in the shuttering position.

[0016] The advantages of the method according to the invention are particularly evident when the slab formwork is moved from a first concreting cycle with an at least partially concreted first concreting section to the next concreting cycle, wherein the next concreting section is arranged adjacent to the first concreting section in the direction of displacement, a third support device for supporting the slab formwork is arranged adjacent to the first support device below the first concreting section in the direction opposite to the direction of displacement, the third support device is moved into the stripping position, the slab formwork is moved by first at least partially supporting the slab formwork by the third support device, then the first support device and then the second support device are moved over from the front side of the slab formwork in the direction of displacement,and the displacement of the slab formwork into the next concreting section is continued until another end face of the slab formwork oriented in the direction opposite to the displacement direction (VR) is released by the third support device or only an end section of the slab formwork encompassing the other end face of the slab formwork is supported by the third support device. The slab formwork is thus moved from the first concreting section into the next concreting section and is already partially raised to the concreting level. When the first support device is moved from the striking to the forming position and, if applicable, further support devices in the displacement direction next to the second support device are moved to the forming position,The next concreting section can be concreted. If only the end section of the slab formwork encompassing the further end face of the slab formwork moved into the next concreting section is supported by the third support device, the slab formwork can rest against an end section of the underside of the concreted first concreting section in order to be able to concrete the next concreting section flush with the concreted first concreting section.

[0017] Further support devices can be arranged next to the second support device in the direction of displacement and / or next to the first / third support device in the direction opposite to the direction of displacement. Before the slab formwork is moved into the next concreting section, the further support devices arranged next to the second support device in the direction of displacement can be moved into the shuttering position and / or the further support devices arranged next to the second support device in the direction opposite to the direction of displacement can be moved into the stripping position. In this case, the concreting section can be concreted with the slab formwork moved into the next concreting section as soon as the first support device is moved into the shuttering position.

[0018] Advantageously, the collision protection element is formed on the end face of the slab formwork in the direction of displacement and / or on the other end face of the slab formwork in the direction opposite to the direction of displacement, with a flank rising in this direction. The collision protection element can be provided, for example, on a longitudinal beam of the slab formwork, which is supported by a roller of a support device. The collision protection element then forms a termination of the longitudinal beam in the direction of displacement and / or in the direction opposite to the direction of displacement. The collision protection element can have a width corresponding to the width of the longitudinal beam.

[0019] If the side of the collision protection element adjacent to a lower edge of the front side and / or the further front side is arranged substantially flush with the lower edge of the front side and / or the further front side, sliding or rolling of the slab formwork on or over the support device is ensured.

[0020] Alternatively or in addition to being attached to the ceiling formwork, the collision protection element can be formed at an end of at least one of the support devices facing the ceiling formwork. In this case, no modification of the ceiling formwork is required to implement the method according to the invention.

[0021] The collision protection element is preferably designed in a beak-shaped, wedge-shaped, skid-shaped, or ramp-shaped form, as a solid or hollow body. This ensures simple and cost-effective production.

[0022] In one embodiment of the invention, the slab formwork is provided with a formwork skin element that forms the underside of a roadway slab, and the support device is designed as a roadway slab bracket. With such a slab formwork, the underside of a roadway slab can be formed effectively.

[0023] The support device can form a support head at one end facing the slab formwork, with the support head being provided with a roller for attachment to a longitudinal beam of the slab formwork. The slab formwork can then be moved by rolling on the roller.

[0024] The support device is advantageously provided with a lowering device with a lifting piston, a support base, and a locking device, wherein the lifting piston is displaceably mounted in the support base and is designed to be inserted from the formwork position into the stripping position and is designed to be locked in the extended working position by means of the locking device. The locking device is provided with a pivot bearing and an eccentric lever, wherein the eccentric lever is rotatably mounted in the pivot bearing and the lifting piston and the support base are supported against each other in the working position (see above) via the eccentric lever, and the support base and / or the lifting piston form the support head at one end. This lowering device allows simple and reliable raising to the concreting level and lowering relative to the concreting level, so that the support device reaches and maintains the formwork and stripping position.

[0025] The invention also includes an arrangement with first and second support devices, a ceiling formwork and a collision protection element for preventing a front side of a ceiling formwork from collapsing, wherein the ceiling formwork is supported by a first support device placed in a stripping position, onto a second support device placed in a shuttering position when the ceiling formwork is moved into a next concreting cycle with a next concreting section to be concreted, wherein the second support device is arranged in the direction of a displacement direction of the ceiling formwork relative to the first support device, wherein when the ceiling formwork is supported by the support device in the shuttering position, the ceiling formwork is raised to a concreting level and is lowered relative to the concreting level in the stripping position,When the front end of the slab formwork impacts the second support device after passing over the first support device, the collision protection element is arranged between the second support device and a front end of the slab formwork in such a way that the collision protection element has a flank rising in the direction of displacement, which is designed, for example, as a solid or hollow body in the form of a beak, wedge, skid, or ramp, to guide the slab formwork in the direction of displacement, and is designed to lift the front end of the slab formwork to the concreting level in such a way that the slab formwork can pass over the second support device. The advantages of this collision protection element correspond to those already mentioned in connection with the use of the collision protection element.

[0026] A slab formwork in which the collision protection element is formed on the front side of the slab formwork in the direction of displacement and / or on another front side of the slab formwork in the direction opposite to the direction of displacement with a flank rising in this direction allows the slab formwork to be moved in the manner according to the invention with any form of support device that can be set in a formwork and stripping position.

[0027] If, in the case of the slab formwork, a side of the collision protection element adjacent to a lower edge of the front side and / or the further front side is arranged substantially flush with the lower edge of the front side and / or the further front side, sliding or rolling of the slab formwork on or over the support device is ensured, whereby friction when moving the slab formwork is reduced / minimized, which reduces wear of the moving parts and reduces operating costs.

[0028] Alternatively, the collision protection element of the arrangement according to the invention can be formed at an end of the support device facing the ceiling formwork. The ceiling formwork can then, but does not have to, be modified in order to be able to carry out the method according to the invention for moving the ceiling formwork.

[0029] In one embodiment of the invention, an incremental launching device comprises at least the first and second support devices and the slab formwork with the collision protection element, wherein the slab formwork is provided with a formwork skin element designed to form an underside of a roadway slab, and the support device is designed as a roadway slab console, wherein the support device comprises a support head at an end facing the slab formwork, wherein the support head is provided with a roller for engagement with a longitudinal beam of the slab formwork. This incremental launching device allows the slab formwork to be moved, which simplifies and accelerates the lifting and setup of the slab formwork while avoiding the described disadvantage of the prior art.The incremental launching device is advantageously designed such that the support device is provided with a lowering device having a lifting piston, a support base, and a locking device. The lifting piston is displaceably mounted in the support base and can be pushed in from the formwork position to the stripping position and can be locked in the extended working position by means of the locking device. The locking device is provided with a pivot bearing and an eccentric lever. The eccentric lever is rotatably mounted in the pivot bearing, and the lifting piston and the support base are supported against each other in the working position via the eccentric lever. The support base and / or the lifting piston form the support head at one end. This ensures simple and reliable raising to the concreting level and lowering relative to the concreting level for reaching and maintaining the formwork and stripping position for the support device.

[0030] Further features and advantages of the invention will become apparent from the following detailed description of an exemplary embodiment of the invention, from the patent claims, and from the figures of the drawing, which illustrate details essential to the invention. The features shown in the drawing are presented in such a way that the special features of the invention can be clearly seen. The various features can be implemented individually or in combinations in variants of the claims of the invention. In the figures, identical reference numerals designate identical or corresponding elements.

[0031] They show: Fig. 1 shows an incremental launching device according to the invention with several support devices, an enlarged collision protection element and a ceiling formwork, which is moved from a concreted concreting section of a roadway slab of a bridge into a concreted section of the roadway slab to be concreted, in a side view; Fig. 2 shows two of the in Fig. 1 shown support devices designed as roadway slab consoles, each provided with a lowering device, at one end of which a roller is arranged, in a spatial external view; Fig. 3a a part of the in Fig. 1 shown incremental launching device with ceiling formwork arranged below a roadway slab and one of the Fig. 2 shown supporting devices provided with the lowering device and designed as a roadway slab console in a front view; Fig. 3b the supporting device designed as a roadway slab console with the lowering device as in Figur 3a shown; Fig. 3c in Fig. 2 shown lowering devices each with a support head raised to the concreting level and a support head lowered relative to the concreting level corresponding to a shuttering and striking position of the support device provided with the respective lowering device; and Fig. 4 one of the two in Fig. 3b shown lowering devices without roller in a cross-sectional view from the front with a slide as an eccentric lever holding device, wherein a lifting piston is shown in the extended formwork position.

[0032] Fig. 1 shows an incremental launching device according to the present invention with support devices 11-14, an enlarged drive-on element 15 on a front side 17 in a displacement direction VR of a longitudinal beam 4 of the slab formwork 10, as well as the slab formwork 10 being moved from a first concreted concrete section 8 in the form of a roadway slab 3 of a bridge 1 to be constructed into a concreting section 9 to be concreted. The slab formwork 10, which is located with formwork elements 6, 6' in the next concreting section 9 to be concreted and with formwork elements 7, 7' in the first concreted concreting section 8, is moved in the X-direction from the first concreting section 8 corresponding to a first concreting cycle into the next concreting section 9 corresponding to a next concreting cycle. The concreting sections 8, 9 can be longer than in the Fig. 1 and each have a length in the X direction that essentially corresponds to the length of the slab formwork with the formwork elements 6, 6', 7, 7'. Longer lengths of the concreting sections 8, 9 are also possible.

[0033] The formwork element 6 is arranged on a frame with a longitudinal beam 4 oriented in the X direction and on cross beams, each oriented in the Z direction (perpendicular to the plane of the paper). The formwork element 6' is arranged on a frame with a further longitudinal beam 4' oriented in the X direction. The further formwork element 7 of the slab formwork 10 is arranged on a frame with a further longitudinal beam 5 oriented in the X direction, and the further formwork element 7' is arranged on a frame with the further longitudinal beam 5'. The formwork elements 6, 6', 7, and 7' are connected to one another to form a uniform formwork surface for shaping an underside 3U of the roadway slab 3. The longitudinal members 4, 4', 5, 5' are therefore connected to one another at mutually facing ends of the longitudinal members, wherein a collision protection element 15 is attached to the end face 17 in the displacement direction VR, which corresponds to the X direction.In the direction opposite to the displacement direction VR, which corresponds to the negative X-direction, a further collision protection element 15' is arranged on a further end face 17' of the longitudinal member 5' in the opposite displacement direction VR.

[0034] On an inclined side wall 2a of a bridge trough 2 of the bridge 1, a first support device 11, a second support device 12, a third support device 13, and a further support device 14 are arranged adjacent to one another and next to one another in the X direction. Each of the support devices 11-14 can be offset into a shuttering position EP and a stripping position AP, wherein, when the slab formwork 10 is supported by each of the support devices 11-14 in the shuttering position EP, the slab formwork 10 is raised to a concreting level and, in the stripping position AP, is lowered relative to the concreting level. The first and second support devices 11, 12 are connected to one another by longitudinal struts S1, S2 in the X direction and at different heights in the Y direction, wherein the longitudinal struts S1, S2 are connected to one another by a transverse strut S3 to increase the rigidity of the connection between the first and second support devices 11, 12.The third support device 13 and the further support device 14 are connected to each other via two additional longitudinal struts S4, S5, which are oriented in the X direction and arranged at different heights in the Y direction. To increase the rigidity of the connection between the third support device 13 and the further support device 14, the longitudinal struts S4, S5 are connected to each other by an additional transverse strut S6.

[0035] The slab formwork 10 is supported by the support devices 11-14 and is displaceable relative to the support devices 11 to 14 in the displacement direction VR and in the direction opposite to this direction, wherein each of the longitudinal beams 4, 4', 5, 5' can slide or roll on each of the support devices 11-14. For this purpose, an upper end of each of the support devices 11-14, which faces the slab formwork 10 when supported, touches an underside of the slab formwork 10, which is formed by the undersides of the longitudinal beams 4, 4', 5, 5'. In the next concreting section 9, the first and second support devices 11, 12 are arranged adjacent to one another in the displacement direction VR, wherein the first support device 11 is displaced into the stripping position AP and the second support device 12, arranged next to the first support device 11 in the displacement direction VR, is displaced into the shuttering position EP. The ceiling formwork 10 is Fig. 1 from the first concreting section 8 into the next concreting section 9, wherein the longitudinal beams 4, 4' have already left the first concreting section and are located in the next concreting section 9. At an earlier point in time (not shown), the slab formwork 10 was arranged completely below the concreted first concreting section 8, wherein the first support device 11, the third support device 13 and the further support device 14 were moved into the stripping position AP in order to lower the slab formwork 10 from the underside 3U of the roadway slab 3 and to move it in the displacement direction VR.

[0036] When the slab formwork 10 is moved in the direction of movement VR into the next concreting section 9 and after passing over the first support device 11, the front side 17 of the slab formwork would move onto the end of the second support device facing the slab formwork 10, since the second support device 12 is in the shuttering position and thus at the concreting level and the other support devices 11, 13, 14 are lowered relative to the concreting level because each of these support devices 11, 13, 14 is in the stripping position AP.According to the invention, the collision protection element 15 is arranged between the second support device 12 and the end face 17 of the slab formwork 10 when the end face 17 of the slab formwork 10 impacts the second support device 12 after passing over the first support device 11, so that the collision protection element 15 forms a flank 15a rising in the displacement direction VR for guiding the slab formwork 10 in the displacement direction VR. At the time the end face 17 impacts the end of the second support device 12 facing the slab formwork 10, the collision protection element 15 is therefore arranged between the second support device 12 and the end face 17 such that the collision protection element 15 forms the flank 15a rising in the displacement direction VR for guiding the slab formwork 10 in the displacement direction VR.After the front end 17 hits the second support device 12, the front end 17 of the slab formwork 10 is raised to the concreting level by the collision protection element 15, so that the second support device 12 is overrun by the slab formwork 10. This state, in which the second support device 12 is overrun by the slab formwork, is shown in . Fig. 1 After passing over the second support device 12, the slab formwork 10 is inclined upwards in the Y-direction in the form of a ramp, as shown by the dashed arrow in Fig. 1 The gradient of the arrow is exaggerated.

[0037] Because of the dimensions of the slab formwork 10, which are significantly larger than the distance between the stripping position AP and the shuttering position EP in the Y-direction, Fig. 1 It is difficult to recognize that the second support device 12 is displaced into the formwork position at the concreting level, and that the upper ends of the other support devices 11, 13, and 14, due to the dislocation into the formwork position, are at a level lowered relative to the concreting level. This is also illustrated by the shape of the flank 15a of the collision protection element 15, which rises in the displacement direction VR, in which a height section 15Y is overcome when the collision protection element strikes the second support device 12, when a longitudinal section 15X of the rising flank 15a, which corresponds to a length of the collision protection element in the X direction, passes over the second support device 12. The height section 15Y is at least a distance or height distance between the formwork position and the striking position in the Y direction and can be a few centimeters, for example, 5 cm. As in Fig. 1 As shown, the collision protection element 15 can be beak-shaped. Also possible, for example, is a partial, skid-shaped, or ramp-shaped design as a solid or hollow body. The width of the collision protection element 5 in the Z direction (out of the plane of the page) can correspond to the width of the longitudinal member 4.

[0038] In Fig. 2 are the ones in Fig. 1 The support devices 11, 12 shown are designed as roadway slab consoles, wherein the first support device 11 is provided with a lowering device 20 and the second support device 12 is provided with a further lowering device 20'. At one end in the Y direction or upper end of the lowering device 50, a roller 50 is arranged for resting on one of the longitudinal beams 4, 4', 5, 5', and at a further end of the lowering device 20' in the Y direction or further upper end, a further roller 50' is arranged for resting on one of the longitudinal beams 4, 4', 5, 5'. The support device 11 comprises a first support element 11a, which is arranged and fastened to the inclined side wall 2a oriented in the Y direction. At an upper end of the first support element 11a, third support elements 11c1, 11c2 are fastened to the first support element and oriented in the Z direction.The lowering device 20 is arranged approximately in the middle of the two third support elements 11c1, 11c2 as part of the first support device 11. The end of each of the two third support elements 11c1, 11c2 in the Z direction is connected via a second support element 11b to another end of the first support element 11a in the negative Y direction. The second support element 11b is designed as a telescope or lifting device, so that the length of the second support element 11b can be increased by extending the telescope or a piston of the lifting device. In this way, the first support device 11 can be attached to side walls with different positive or negative lateral inclinations, with the roller 50 always oriented in the Z direction, i.e., horizontally.

[0039] The second support device 12 has a first support element 12a mounted on the inclined side wall 2a, with third support elements 12c1, 12c2 extending in the Z direction from an upper end of the first support element 12c1, 12c2, between which third support elements 12c1, 12c2 are arranged. A respective end of both third support elements 12c1, 12c2 in the Z direction is connected to a further end of the first support element 12a in the negative Y direction via a second support element 12b in the form of a telescope or a lifting device. The support elements 11a, 11b, 11c1, 11c2 of the first support device 11 and the support elements 12a, 12b, 12c1, 12c2 of the second support device 12 each form a triangular arrangement, which in the present case is designed as a steel support structure.The first support device 11 and the second support device 12 are each in the formwork position EP, since the lowering devices 20, 20' are lowered or retracted. To carry out the inventive method for moving the slab formwork 10, the second support device 12 is moved into the formwork position EP in the next concreting section 9, before the slab formwork 10 encounters the second support device 12 after passing over the first support device 11.

[0040] The transverse strut S3 is connected to the longitudinal struts S1, S2 by means of clamps, with the longitudinal strut S1 being attached to the ends of the support devices 11, 12 in the negative Y direction. The longitudinal strut S2 is attached to the ends of the third support elements 11c1, 11c2 of the first support device 11 and 12c1, 12c2 of the second support device 12 in the Z direction. By connecting both support devices by the longitudinal struts S1, S2 and the cross strut S3, a force acting in the X direction in the displacement direction VR, which acts on each of the support devices 11, 12 during displacement, can be transferred to all of the support points of the first and second support devices 11, 12 on the side wall 2a, so that the stability of both support devices during displacement of the slab formwork is increased compared to a solution without the longitudinal struts S1, S2 and the cross strut S3.

[0041] In Fig. 3a is part of the Fig. 1 shown in a front view with the slab formwork 10 arranged below the roadway slab 3 and the support device 11 provided with the lowering device 20 and designed as a roadway slab console. A first section 6a of the formwork element 6 and a second section 6b of the formwork element 6, which is raised in the Y direction relative to the first section 6a, form the underside 3U of the roadway slab 3 of the first concreting section 9 of the first concreting cycle. The first support device 11, which comprises the lowering device 20, is located in the formwork position EP, in which the lowering device is extended such that the second support device 12 and thus the slab formwork 10 are each at the concreting level in which the slab formwork 10 lies flush or level with the underside 3U of the roadway stairs 3.

[0042] The longitudinal beam 4 of the slab formwork 10 rests on the roller 50', with the roller 50' being oriented in the Z direction and the slab formwork 10 being displaceable in the X direction or negative X direction on the roller 50'. The first support device 11 is attached to the side wall 2a of the bridge trough 2 of the bridge 1 with the first support element 11a, so that the roller 50' of the lowering device 20' is oriented horizontally, i.e., in the Z direction. By extending a telescope or a lifting device as the second support element 11b, the first support device 11 could also be attached to the opposite side of the side wall 2a, with the roller 50 being aligned horizontally.The longitudinal beam 4 has the collision protection element 15 on its end face 17 in the displacement direction VR, so that when the ceiling formwork 10 hits the second support device 12, the collision protection element 15 raises the end face 17 of the ceiling formwork 10 to the concreting level, so that the second support device 12 is driven over by the ceiling formwork 10. For clarification, in . Fig. 3a the roadway slab 3 is shown already concreted, which is not the case with the method according to the invention because the second support device 12 is moved into the shuttering position EP before the slab formwork 10 moves over the second support device in order to reach the shuttering position and thus enable concreting of the next concreting section 9.

[0043] In Fig. 3b the support device 11 designed as a roadway slab console with the lowering device 20 in the stripping position AP is in a Fig. 3a Enlarged front view. The first support element 11a, the second support element 11b, and the third support elements 11c1, 11c2 form the triangular steel support structure, with the second support element 11b being designed in the form of a lifting device with a lifting cylinder 11b2 with a lifting piston 11b1 guided therein. In the lowering device 20, a guide pin 11c3 is guided through pin through holes in the third support elements 11c1, 11c2 (not shown).

[0044] In Fig. 3c are the ones in Fig. 2 The lowering devices 20, 20' shown are each shown with a support head of the lowering device 20' raised to the concreting level and a support head of the lowering device 20 lowered relative to the concreting level, corresponding to the formwork position EP and the stripping position AP of the support device 11, 12 provided with the respective lowering device 20, 20'. The lowering device 20 and the further lowering device 20' each have a support base 18, which are arranged at the same height in the Y direction. This is illustrated by adjustment holes 35 in each of the support bases 18 of the lowering devices 20, 20' by a horizontal dashed line that connects both adjustment holes 35 to one another. A lifting piston 14A is guided in the support base 18, which is extended at the lowering device 20' such that the lowering device 20' and thus the second support device 12 each reach the formwork position EP.A stroke length of the lifting piston 14A thus corresponds to a vertical distance or height difference d between the stripping position AP and the formwork position EP in the Y direction. The stripping position AP is located at the height of an upper end of the support base 18, as shown in the lowering device 20. The formwork position EP is located at the height of an upper end of the lifting piston 14A, as shown in the lowering device 20'. The height difference between the formwork position and the stripping position can be, for example, 50 mm. When the lowering device 20' is moved from the stripping position AP to the formwork position EP, not only is the upper end of the lifting piston 14a raised by the height difference d between the stripping position AP and the formwork position EP, but also the roller 50' arranged on the lifting piston 14a.By moving the roller 50' from the stripping position AP to the forming position EP, the slab formwork 10, which is slidably supported on the roller 50', can be raised to the concreting level.

[0045] In Fig. 4 is one of the Fig. 3b The lowering devices 20 shown without roller are shown in a cross-sectional view from the front with a slide 12A as an eccentric lever holding device, wherein the lifting piston 14A is in the extended shuttering position EP. The lowering device 20 has a longitudinal axis designated L, the lifting piston 14A and an eccentric lever 16. The lifting piston 14A is located, as in the lowering device 20', in Fig. 3c in the formwork position EP, which is shifted from the formwork stripping position AP by the height distance d in the Y direction. The support base 18 can be designed in the form of a housing that protectively encloses a mechanism of a locking device, e.g. the eccentric lever 16. Both the support base 18 and the lifting piston 14A have an end plate at their free ends, each of which forms a support head 20A. Stop knobs 22 can be arranged at the lifting piston-side end of the support base 18 between the support base 18 and the support head 20A of the lifting piston 14A. The stop knobs 22 can be welded, for example, to an end plate 24 of the support base 18. The end plate 24 has an opening (not shown) shaped to the circumferential shape of the cross-section of the lifting piston 14A, through which opening the lifting piston 14A is pushed. The cross-sectional shape of the reciprocating piston 14A can, for example, be circular.However, embodiments with a different, in particular polygonal, preferably rectangular, cross-sectional shape can also be used. The direction of the displaceable mounting of the reciprocating piston 14A in the support base 18 is symbolically indicated by a double drop 26.

[0046] The lifting piston 14A is moved from its extended working position shown here in the form of the shuttering position EP into the Fig. 3c with the lowering device 20 shown lowering position in the form of the stripping position AP in an axial direction to the longitudinal axis L and can be locked in the pushed-out working position by means of the locking device, e.g. the eccentric lever 16. Fig. 4 shows a lowering device 20 with a lifting piston 14A arranged in the working position, i.e. in the position maximally extended from the support base 18 (= pre-stroke position or shuttering position). In other words, the lowering device 20 is in its supporting function position. The parts of the locking device, e.g. the eccentric lever 16, are positioned accordingly. The eccentric lever 16, which is rotatably mounted in pivot bearings on the support base 18, is movably connected to the lifting piston 14A via a connecting rod element 32. For this purpose, the eccentric lever 16 and the lifting piston 14A each have a bore which serves as additional pivot bearings. The connecting rod element 32 each has a bolt-like pivot axis 34 in its end regions. The two pivot axes 34 are each mounted in one of the additional pivot bearings of the eccentric lever 16 and the lifting piston 14A.

[0047] The center of gravity of the eccentric lever 16 is located outside the axis of rotation of the eccentric lever 16 formed by a support shaft 30 between the lifting piston 14A and the axis of rotation of the eccentric lever 16.

[0048] A hub 36 of the rotation axis of the support shaft 30 and thus of the eccentric lever 16 and a screw nut 38 for its fastening are in Fig. 4 The reciprocating piston 14A, the connecting rod element 32, and the eccentric lever 16 are arranged similarly to the structure of a reciprocating piston engine, with the connecting rod element 32 and the eccentric lever 16 forming a toggle lever 40, via which the reciprocating piston 14A is movably connected to the support base 18. In the illustrated working position, in the form of the shuttering position, the reciprocating piston 14A and the support base 18 are supported against each other via the eccentric lever 16. In the illustrated embodiment of the lowering device 20, this is achieved via the connection to the connecting rod element 32.

[0049] The eccentric lever holder device formed by the slide 12A can have a return spring 44 (integrated spring return), wherein the slide 12A is fastened to the support base 18 by means of the return spring 44, e.g., via a fastening pin 46. Furthermore, a visual marking can be marked on the slide 12A to distinguish the lowered position in the form of the formwork dismantling position AP from the raised working position in the form of the formwork enclosing position EP. This visual marking can, for example, consist of a red and a green viewing field applied to the free end of the long leg of the slide 12A. Depending on the position of the slide 12A, only the red viewing field or the red and green viewing fields are located outside the housing.

[0050] The features of the invention described with reference to the illustrated embodiment, such as a manual displacement of the support devices into the formwork and stripping positions as working positions, can also be present in other embodiments of the invention, such as the displacement of the support devices into the formwork and stripping positions by means of electrical, pneumatic and / or hydraulic force introduction, unless otherwise stated or is prohibited for technical reasons.

Claims

1. Method for displacing a ceiling formwork (10) into a next concreting cycle with a next concreting section (9) to be concreted, comprising the steps: - arranging first (11) and second (12) support devices arranged along a displacement direction (VR), in particular on a side wall, for example of an edge area of a bridge trough, for supporting the ceiling formwork (10) below the next concreting section (9), which each have a formwork position (EP) and a formwork removal position (AP) as working positions, wherein, when the ceiling formwork (10) is supported by the support device (11-14) in the formwork position (EP), the ceiling formwork (10) is raised to a concreting level and, in the formwork removal position (AP), is lowered relative to the concreting level, - shifting the first support device (11) into the formwork removal position (AP) and the second support device (12) arranged relative to the first support device (11) in the displacement direction (VR) into the formwork position (EP), - arranging a collision protection element (15, 15') between the second support device (12) and a front side (17, 17') of the ceiling formwork (10) when the front side (17, 17') of the ceiling formwork (10) strikes the second support device (12) after passing over the first support device (11) (12), so that the collision protection element (15, 15') forms a flank (15a) rising in the displacement direction (VR) for guiding the ceiling formwork (10) in the displacement direction (VR), and - raising the front side (17, 17') of the ceiling formwork (10) guided by the collision protection element (15, 15') to the concreting level, so that the second support device (12) is passed over by the ceiling formwork (10).

2. Method for displacing a ceiling formwork according to claim 1, wherein the ceiling formwork (10) is at least partially raised to the concrete level by displacing the ceiling formwork (10) into the next concreting cycle.

3. Method for displacing a ceiling formwork according to claim 1 or claim 2, wherein, after completion of the displacement of the ceiling formwork (10) into the next concreting cycle, the first support device (11) is shifted into the formwork position (EP) in order to raise the ceiling formwork (10) to the concreting level.

4. Method for displacing a ceiling formwork according to one of the preceding claims, wherein the ceiling formwork (10) is displaced from a first concreting cycle with a first concreted section (8) that is at least partially concreted into the next concreting cycle, wherein the next concreting section (9) is arranged adjacent to the first concreting section (8) in the displacement direction (VR), wherein - a third support device (13) for supporting the ceiling formwork (10) is arranged in the direction opposite to the displacement direction (VR) adjacent to the first support device (11) below the first concreting section (8), - the third support device (13) is shifted into the formwork removal position (AP), - the ceiling formwork (10) is displaced by the ceiling formwork (10) first being supported at least partially by the third support device (13), then the first support device (11) and then the second support device (12) is passed over by the front side (17) of the ceiling formwork (10) in the displacement direction (VR), and - the displacing of the ceiling formwork (10) into the next concreting section (9) is continued until a further front side (17') of the ceiling formwork (10), oriented in the direction opposite to the displacement direction (VR), is released by the third support device (13) or only an end section of the ceiling formwork (10) comprising the further front side (17') of the ceiling formwork (10) is supported by the third support device (13).

5. Method for displacing a ceiling formwork according to one of the preceding claims, wherein - further support devices (14) are arranged in the displacement direction (VR) next to the second support device (12) and / or in the direction opposite to the displacement direction (VR) next to the first (11) / third (13) support device, and - before displacing the ceiling formwork (10) into the next concreting section (9), the additional support devices arranged in the displacement direction (VR) next to the second support device (12) are shifted into the formwork position (EP) and / or the additional support devices (14) arranged in the direction opposite to the displacement direction (VR) next to the second support device (12) are shifted into the formwork removal position (AP).

6. Method for displacing a ceiling formwork according to one of the preceding claims, wherein - the first and second support devices (11, 12) are arranged adjacent to one another, or - at least one other support device is arranged between the first and second support devices (11, 12), wherein the other support device is shifted into the formwork removal position (AP) or into a position between the formwork removal position (AP) and the formwork position (EP).

7. Method for displacing a ceiling formwork according to one of the preceding claims, wherein the collision protection element (15, 15') is formed at the front side (17) of the ceiling formwork (10) in the displacement direction (VR) and / or at a / the further front side (17') of the ceiling formwork (10) in the direction opposite to the displacement direction (VR) with a flank (15a) rising in this direction.

8. Method for displacing a ceiling formwork according to claim 7, wherein a side of the collision prevention element (15, 15') adjacent to a lower edge of the front side (17) and / or the further front side (17') is arranged substantially flush with the lower edge of the front side (17) and / or the further front side (17') in order to ensure sliding or rolling of the ceiling formwork (10) on or over the support device (11-14).

9. Method for displacing a ceiling formwork according to one of the preceding claims, wherein the collision protection element (15, 15') is formed at one end of at least one of the support devices (11-14) facing the ceiling formwork (10).

10. Method for displacing a ceiling formwork according to one of the preceding claims, wherein the collision protection element (15, 15') is designed in a beak shape, wedge shape, skid shape or in the form of a ramp as a solid or hollow body.

11. Method for displacing a ceiling formwork according to one of the preceding claims, wherein the ceiling formwork (10) is provided with a formwork skin element (6, 7), which forms an underside (3U) of a roadway slab (3), and the support devices (11-14) are designed as roadway slab consoles.

12. Method for displacing a ceiling formwork according to claim 11, wherein the support device (11-14) forms a support head (20A) at one end facing the ceiling formwork (10), wherein the support head (20A) is provided with a roller (50, 50') for bearing against a longitudinal member (4, 5) of the ceiling formwork (10).

13. Method for displacing a ceiling formwork according to claim 12, wherein the support device (11-14) is provided with a lowering device (20, 20') with a reciprocating piston (14A), a support base (18) and a locking device, wherein the reciprocating piston (14A) is mounted in the support base (18) to be displaceable and is designed to be retractable from the formwork position into the formwork removal position and, by means of the locking device, is designed to be locked in the extended working position, wherein the locking device is provided with a pivot bearing (28) and an eccentric lever (16), wherein the eccentric lever (16) is rotatably mounted in the pivot bearing (28) and the reciprocating piston (14A) and the support base (18) are supported against each other in the working position (see above) via the eccentric lever (16), and the support base (18) and / or the reciprocating piston (14A) form the support head (20A) at one end.

14. Arrangement with first (11) and second (12) support devices, a ceiling formwork and a collision protection element (15, 15') for preventing a colliding of a front side (17, 17') of the ceiling formwork (10), wherein the ceiling formwork (10) is supported by the first support device (11) set in a formwork removal position (AP) with the second support device (12) set in a formwork position (EP) when the ceiling formwork (10) is displaced in a next concreting cycle with a next concreting section to be concreted (9), wherein the second supporting device (12) is arranged in the displacement direction (VR) of the ceiling formwork (10) relative to the first support device (11), wherein, when the ceiling formwork (10) is supported by the support device (11, 12) in the formwork position (EP), the ceiling formwork (10) is raised to a concreting level and, in the formwork removal position (AP), is lowered relative to the concreting level, wherein, when the front side (17, 17') of the ceiling formwork (10) strikes the second support device (12) after passing over the first support device (11), the collision protection element (15, 15') is arranged between the second support device (12) and a front side (17, 17') of the ceiling formwork (10) such that the collision protection element (15, 15') has a flank (15a) rising in the displacement direction (VR), which is designed, for example, in a beak shape, wedge shape, skid shape or in the form of a ramp as a solid or hollow body, for guiding the ceiling formwork in the displacement direction (VR), and is designed to guide the front side (17, 17') of the ceiling formwork (10) raising to the concreting level such that the second support device (12) can be passed over by the ceiling formwork (10), wherein the collision protection element (15, 15') is formed at the front side (17) of the ceiling formwork (10) in the displacement direction (VR) and / or at a further front side (17') of the ceiling formwork (10) in the direction opposite to the displacement direction (VR) with a flank (15a) rising in this direction.

15. Arrangement according to claim 14, wherein at the ceiling formwork a side of the collision protection element (15, 15') adjacent to a lower edge of the front side (17) and / or the further front side (17') is arranged essentially flush with the lower edge of the front side (17) and / or the further front side (17') in order to ensure sliding or rolling of the ceiling formwork (10) on or over the support device (11, 12).

16. Arrangement with first (11) and second (12) support devices, a ceiling formwork and a collision prevention element (15, 15') for preventing a front side (17, 17') of the ceiling formwork (10) from colliding, wherein the ceiling formwork (10) is supported by the first support device (11) set in a formwork removal position (AP), with the second support device (12) set in a formwork position (EP) when the ceiling formwork (10) is displaced into a next concreting cycle with a next concreting section (9) to be concreted, wherein the second support device (12) is arranged in the displacement direction (VR) of the ceiling formwork (10) relative to the first support device (11), wherein, when the ceiling formwork (10) is supported by the support device (11, 12) in the formwork position (EP), the ceiling formwork (10) is raised to a concreting level and, in the formwork removal position (AP), is lowered relative to the concreting level, wherein, when the front side (17, 17') of the ceiling formwork (10) strikes the second support device (12) after passing over the first support device (11), the collision protection element (15, 15') is arranged between the second support device (12) and a front side (17, 17') of the ceiling formwork (10) such that the collision protection element (15, 15') has a flank (15a) rising in the displacement direction (VR), which is designed, for example, in a beak shape, wedge shape, skid shape or in the form of a ramp as a solid or hollow body, for guiding the ceiling formwork in the displacement direction (VR), and is designed to guide the front side (17, 17') of the ceiling formwork (10) such that the second support device (12) can be passed over by the ceiling formwork (10), wherein at the support device (11, 12) the collision protection element (15, 15') is formed at an the end of the support device (11, 12) facing the ceiling formwork (10).

17. Clock shift device with at least the arrangement according to claim 14 or claim 16, wherein the ceiling formwork (10) is provided with a formwork skin element (6, 7) which is designed to form a lower side (3U) of a roadway slab (3) and the supporting device (11, 12) is designed as a roadway slab console, wherein the supporting device (11, 12) comprises a support head (20A) at an end facing the ceiling formwork (10), wherein the support head (20A) is provided with a roller (50, 50') for bearing against a longitudinal member (4, 5) of the ceiling formwork (10).

18. Clock shift device according to claim 17, wherein the support device (11, 12) is provided with a lowering device (20, 20') with a reciprocating piston (14A), a support base (18) and a locking device, wherein the reciprocating piston (14A) is mounted in the support base (18) to be displaceable and is retractable from the formwork position into the formwork removal position and is lockable in the extended working position by means of the locking device, wherein the locking device is provided with a pivot bearing (28) and an eccentric lever (16), wherein the eccentric lever (16) is rotatably mounted in the pivot bearing (28) and the reciprocating piston (14A) and the support base (18) are supported against each other in the working position (see above) via the eccentric lever (16), and the support base (18) and / or the reciprocating piston (14A) form the support head (20A) at one end.