EP3857002A1 - Stay head, ceiling stay, ceiling formwork and method for erecting such a ceiling formwork - Google Patents
Stay head, ceiling stay, ceiling formwork and method for erecting such a ceiling formworkInfo
- Publication number
- EP3857002A1 EP3857002A1 EP19749698.7A EP19749698A EP3857002A1 EP 3857002 A1 EP3857002 A1 EP 3857002A1 EP 19749698 A EP19749698 A EP 19749698A EP 3857002 A1 EP3857002 A1 EP 3857002A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- displacement
- support
- head
- formwork
- guide means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009415 formwork Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 172
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 238000010276 construction Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 3
- 239000011343 solid material Substances 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 101100521345 Mus musculus Prop1 gene Proteins 0.000 description 1
- 108700017836 Prophet of Pit-1 Proteins 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
- E04G11/483—Supporting heads
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G2025/006—Heads therefor, e.g. pivotable
Definitions
- the invention relates to a prop head for a floor prop for a floor formwork with a connecting element and a displacement element.
- the invention further relates to a floor prop with such a pillar head, a floor formwork with such a floor prop and a method for erecting such a floor formwork.
- Frame panel formwork elements are used in particular, which at least partially form a shape for filling in liquid concrete. After the concrete has hardened, the formwork elements are removed.
- the formwork elements are supported by floor props, with a prop head of the floor prop supporting a beam of the floor formwork with the formwork elements.
- internal building supports In the cycle shift process, e.g. B. in bridge construction, during the warping of the slab formwork in a new concreting section, in particular as part of a drawer solution for concreting the carriageway slab, internal building supports must be dismantled in order to be able to drive over obstacles such as bulkhead walls in a trough. This is particularly necessary when a folded-up building support projects so far from the beam that a bulkhead cannot be run over.
- the object of the present invention is to provide a prop head, a ceiling prop and a formwork with such a prop, in which the prop head is compact and easy to use, in order to disassemble the prop with the prop head in favor of folding the prop up even in confined spaces to avoid.
- Another object of the invention is to provide a method for erecting such slab formwork. This object is achieved by a prop head with the features of claim 1 and by a method according to claim 1 7. The subclaims indicate appropriate further training.
- a support head for a ceiling support for a ceiling formwork which comprises a connection element with first and second connection surfaces facing away from one another, the first connection surface being connectable or connected to a formwork support and the second connection surface for guiding a guide means opposite one another
- Connection element has displaceable displacement element.
- the column head further comprises the displacement element, which can be arranged between a beam, for example in the form of a double U profile, the slab formwork and the connection element and has second guide means.
- the first and second guide means cooperate in such a way that in the loaded state of the support head in a first displacement position, the first and second guide means form an axis below the support bar, about which the displacement element can be tilted by a first angle relative to the connection element.
- the connection element In the unloaded state of the support head, the connection element can be displaced from the first displacement position into a second displacement position, the connection element in the second displacement position being rotatable relative to the displacement element by a second angle which is greater than the first angle.
- the displacement element is connected to the connection element in a displaceably guided manner.
- the sliding element can be fastened to the support bar, for example an SRU steel bar with double U profile from PERI, with a simply released and compact folding mechanism in the unloaded state, for example transversely to the support bar, with a low installation height of the support head.
- the axis below the beam transom allows the inclination to be compensated by the first angle to at least partially avoid eccentric load transfer into the ceiling prop.
- the connecting element in the second displacement position can be displaced relative to the displacement element in such a way that due to increased freedom from collision of the displacement element relative to the connection element, the second angle is significantly larger than the first angle, for example 90 degrees or above.
- Disassembly of the support - easy locking of the formwork support attached to the support head in a horizontal position, e.g. with the help of a (wire) loop, on the sliding element or the beam of the slab formwork,
- the floor props do not have to be disassembled and reassembled after warping the floor formwork and can instead be folded up due to the compact prop head and the simple folding mechanism of the connection element with the formwork prop in relation to the displacement element in the second displacement position. Compared to dismantling the floor props, this leads to an increase in the cycle speed in the cycle sliding process,
- the axis formed in the loaded state of the support head in the first displacement position runs below the beam as a first axis essentially in a longitudinal direction of the beam for one
- the support head further comprises a contact element for contacting the beam of the slab formwork, which is connected in one piece or detachably to the displacement element and, in the applied state, can be rotated with the beam according to a third axis which is substantially perpendicular to the longitudinal direction of the beam for compensating for transverse inclinations connected is.
- connection element from the first displacement position into the second displacement position is essentially perpendicular to the Longitudinal direction of the support bar is displaceable, in particular the connection element in the second displacement position relative to its position in the loaded state of the support head can be rotated by the second angle of at least 90 degrees.
- connection element can be displaced from the first displacement position into the second displacement position essentially perpendicular to the longitudinal direction of the support bar, the displacement element can be displaced transversely to the support bar in a plane defined by the first connection surface with a normal vector in the direction of load introduction to the connection element in the loaded state . Since displacements of the displacement element with respect to the connection element in the direction of load introduction are essentially avoided, the construction height can be reduced or minimized in the vertical direction in the loaded state.
- the support head has a cardan joint or cardan joint-like structure.
- This structure allows in addition to compensating for longitudinal inclinations, for. B. a bridge or other structure, additional compensation of bank inclinations without introducing eccentric loads in the ceiling prop.
- the first axis formed in the loaded state of the support head in the first displacement position is centered below the contact element, that is to say essentially in the direction of load introduction, in order to avoid introducing an eccentric load into the ceiling support.
- the first axis running essentially in the longitudinal direction of the beam and the third axis running essentially perpendicular to the longitudinal direction of the beam advantageously form a universal joint.
- the first axis has a longitudinal inclination compensation the first angle of approx. +/- 4 degrees and the third axis one
- the third axis which runs essentially perpendicular to the longitudinal direction of the carrier bar, is advantageously formed by a pin which is inserted through two recesses which lie opposite one another essentially perpendicular to the longitudinal direction of the carrier bar.
- the pin can have a conical shape and / or can be secured against unintentional detachment from the contact element and / or the carrier bolt by a split pin which can be inserted into the pin reversibly.
- the support bar can consist of at least two mutually parallel and spaced apart profiles of essentially the same height, in particular of a double U profile with U profiles facing away from one another with a spacer rail on one side of the double U profile the U-profiles, for example made of steel as a steel bar, is formed, with a FH height of the contact element of the FH element of the profile, in particular a FHheight of the U-profile minus the thickness of the spacer rail and / or a width of the contact element in the applied state of the contact element Width of the spacer rail.
- the displacement element and the contact element connected to the displacement element advantageously form a T-piece and / or pipe piece.
- the prop head according to the invention can essentially consist of a tubular T-piece, which can be manufactured inexpensively, but nevertheless stably and easily.
- the sliding element forms the horizontal aligned "lying" arm of the upside down T and the contact element the vertically aligned "standing” arm of the upside down T.
- connection element In the loaded state of the support head, one side of the displacement element, on which the second displacement position is located, is preferably aligned with an outer edge of the support bar, in particular an outer edge of a leg of the double-U profile of the support bar, when the axis formed in the first displacement position is centered below the beam is arranged.
- the connection element can be designed as a top plate with mutually parallel first and second connection surfaces and with at least two tabs lying opposite one another in the longitudinal direction of the support bar as components of the first guide means on the second connection surface.
- connection element which is designed, for example, as a top plate (with the formwork support connected to it) is pushed from the collision area of the beam in the second displacement position by moving it from the first to the second displacement position before the formwork support is folded up / turned.
- the displacement element preferably has, as the second guide means, an exceptionally extending guide channel extending from one side to the other side of the displacement element, at the ends of which the first and second displacement positions are located, the first guide means being a web, for example in the form of a Screw or rivet, which extend from one tab through the guide channel to the other tab.
- the displacement element has, as second guide means on two opposite sides of the displacement element, mutually parallel guide channels, at the ends of which the first and second displacement positions are located, the first guide means having a web on each tab, for example in the form of a screw or Include rivets, which engages in the guide channel facing the respective tab.
- the support head can consist of a guideway on two sides of the displacement element opposite each other in the loaded state in the longitudinal direction of the beam, a head plate with brackets and two first and third axes arranged perpendicular to each other.
- the recessed guideway in the tubular T-piece enables a swiveling up transversely to the beam with a small installation height, because the connection element designed as a top plate with the formwork support connected to it can be pushed out of a collision area of the beam according to the above embodiment before the formwork support is folded up.
- Such an embodiment is shown below in the figures.
- the connecting element can also each have tabs as the first guide means, each having a guide channel from one side of each tab to the other side of each tab, at the ends of which the first and second displacement positions are located, the second guide means of the displacement element having a web, for example in the form of a screw or rivet, which engage at its opposite ends in the guide channels formed by the tabs.
- the connection element may also have tabs as the first guide means, each having a guide channel from one side of each tab to the other side of each tab, at the ends of which the first and second displacement positions are located, the second guide means of the displacement element on each of the Tab side facing each include a web, for example in the form of a screw or rivet, which engages in the respective guide channel of each tab.
- the first or second guide means advantageously have a recess running essentially in the longitudinal direction of the carrier bar in the side of the guide channel facing the carrier bar or furrows running essentially in the longitudinal direction of the carrier bar in the sides of the guide channels facing the carrier bar, in order to be loaded the column head in the first Movement position formed axis to form below the beam.
- a recess running essentially in the longitudinal direction of the carrier bar in the side of the guide channel facing the carrier bar or furrows running essentially in the longitudinal direction of the carrier bar in the sides of the guide channels facing the carrier bar, in order to be loaded the column head in the first Movement position formed axis to form below the beam.
- connection element can advantageously be locked in the second displacement position relative to the displacement element by the second angle, on the displacement element or the carrier bolt, for example by a wire, in particular steel wire.
- Also covered by the present invention is a ceiling prop with the prop head according to the invention and the formwork prop arranged on the prop head.
- a slab formwork with the slab support according to the invention and the support bar arranged on the slab support is also part of the invention.
- the girder beam can be designed as a double U-profile with U-profiles facing away from one another with a spacer rail between the U-profiles present on one side of the double U-profile, in particular made of steel as a steel beam.
- the object is further achieved by a method for erecting a previously described slab formwork. It comprises a formwork surface, which is composed of several formwork elements, at least two ceiling supports according to the invention being used to erect the ceiling formwork.
- the support heads of the floor props are each loaded by placing them on the support bar and in the first displacement position the first and second guide means of the connecting element of each support head form the axis below the support bar.
- the support heads are relieved by moving the connection element of each support head downward relative to the support bar and the respective connection element is displaced from the first displacement position to the second displacement position, rotated into a substantially horizontal position, and locked on the respective displacement element or the support frame.
- Figure 1 is a perspective view of the prop head according to the invention.
- FIG. 2 shows a perspective view of a ceiling prop with the prop head from FIG. 1 at its upper end;
- 3a shows a side view of the support head from FIG. 1 with the connecting element shown in semi-transparency; 3b is a perspective view of the column head from FIG. 3a,
- Fig. 4a is a front view of the prop head according to the invention in a loaded
- 4b shows a side view of the column head according to the invention in a loaded state with a connected formwork support and a connected beam, the beam being shown in a semi-transparent cross-sectional view;
- FIG. 5a shows a side view of the prop head according to the invention rotated by 180 degrees in relation to FIG. 4b in the loaded state with a connected formwork support and a connected beam, the beam being connected to a ceiling formwork;
- FIG. 5b shows a side view of the support head according to the invention from FIG. 5a in the unloaded state in the first displacement position;
- FIG. 5c shows a side view of the support head according to the invention from FIG. 5a in the unloaded state in the second displacement position;
- FIG. 5d shows a side view of the prop head according to the invention from FIG. 5a in the relieved state in the second displacement position with the formwork support folded up;
- FIG. 5e shows a perspective view of the support head according to the invention according to FIG. 5d;
- FIG. 6a shows a cross-sectional view of a bridge with a ceiling formwork with two floor props according to the invention in a loaded state
- Fig. 6b is an enlarged view of the prop head shown in Fig. 6a in one
- FIG. 6c shows a cross-sectional view of the bridge according to FIG. 6a, the two formwork supports connected to the support head according to the invention being folded up; and Fig. 6d is an enlarged view of the prop head shown in Fig. 6c in a front view.
- the column head 1 shows a perspective view of the column head 1 according to the invention with a Cartesian coordinate system with mutually perpendicular axes X, Y and Z.
- the column head 1 has a connection element 2 with a first connection surface (not shown) with a normal vector in the -Z direction .
- the second connection surface 4 with a normal vector in the Z direction has two tabs 5a as first guide means for guiding a displacement element 6 which is displaceable relative to the connection element 2, a screw 5b being inserted and screwed through the two tabs 5a as a further element of the first guide means.
- the screw 5b is inserted through two guide channels 7 of a second guide means in the displacement element 6, the two guide channels being formed in that the displacement element 6 is designed as a tube piece with a cavity which extends over the length of the displacement element 6.
- a contact element 8 which extends in the Z direction and has recesses 12 which extend in the direction of a longitudinal axis of the displacement element 6 in the X direction from one side of the contact element 8 to another side of the contact element 8 opposite this side.
- connection element 2 shows a perspective view of a ceiling prop 10 with the prop head 1.
- a formwork support 11 is connected to the support head 1 via four screw connections.
- the prop head 1 and the formwork prop 1 1 together form the ceiling prop 10.
- FIG. 3a shows a side view of the support head 1 from FIG. 1 with the connection element 2 shown semi-transparently.
- the displacement element 6 is over the second Guide means in the form of two mutually parallel guide channels 7, which are recessed in the tube piece of the displacement element 6 on two opposite sides and the screw 5b, which is inserted through two tabs 5a of the connection element 2, connected to the connection element 2.
- the displacement element 6 is therefore connected via its guide channels 7 as a second guide means to the connecting element 2 and is movably guided by the connecting element 2.
- the connection element 2 is designed as a top plate with the first connection surface 3 and the second connection surface 4, which are arranged parallel to one another.
- the displacement element 6 has the second guide means in the form of two guide channels 7 in such a way that the displacement element 6 can be displaced in the X direction and -X direction relative to the connection element 2.
- the second guide means in the form of the two guide channels 7 have a first displacement position V1, in which the screw 5b is oriented with its axis in the Y direction as a web between the two tabs 5a.
- the screw 5b thus forms a first axis A1 in the Y direction, about which the displacement element 6 can be tilted by a first angle a relative to the connection element 2.
- the angle a is due to the height of the first displacement position V1 above the lower side of the displacement element 6 facing the connection element 2, the length of the displacement element 6 and the distance d1 between the lower side of the displacement element 6 facing the connection element 2 and the second connection surface 4 of the connection element 2 given.
- the first displacement position V1 is formed by a semicircular groove in the two guide channels 7 of the second guide means in the displacement element 6 such that the first axis A1 is located on a longitudinal axis 18 of the contact element 8, which is arranged on the displacement element 6 and connected to it in a form-fitting manner is. Due to the groove in the second guide means of the displacement element 6, the displacement element 6 is not only opposite in the X direction and -X direction Connection element 2 slidable, but also in the Z direction and in the -Z direction.
- the second guide means in the form of the two guide channels 7 have a second displacement position V2 in the X direction at their ends, into which the screw 5b of the first guide means of the connection element 2 can be moved. Because of the flute of the groove 7 ', which corresponds approximately to half the diameter of the thread of the screw 5b, by which the screw 5b can be displaced in the guide channels in the Z direction, the second displacement position V2 is in the -Z direction around the fleas the furrow 7 'shifted with respect to the first shift position V1.
- the contact element 8 has a width 8b and a length in the direction of its longitudinal axis 18, a pin 13 shown in a semi-transparent manner being inserted as a locking pin through the recesses 12 shown in FIG. 1 and being secured against unintentional loosening by a split pin 14 shown in a semi-transparent manner.
- the pin 13 has a longitudinal axis which, as the third axis A3, allows the contact element 8 to be rotated about a carrier bar when the contact element 8 is pushed into the carrier bar and connected to the carrier bar by means of the pin 13.
- the prop head 1 which is shown in FIG. 3a, is shown in perspective.
- the connection plate 2 and the second connection surface 4, on which the two brackets 5a and the screw 5b are fastened as the first guide means, can be seen in a semi-transparent representation.
- the second guide means are formed in the displacement element 6 as two guide channels 7, only one of the two guide channels being shown in the -Y direction in FIG. 3b.
- the pin 13 With its longitudinal axis, the pin 13 forms the third axis A3, about which the contact element 8 and thus the support head 1 can be rotated about the support bar when the support head 1 is connected to the support bar via the contact element 8 with the recesses 12 and the pin 13.
- the first axis A1 is oriented in the Y direction and the third axis A3 in the X direction, form the first axis A1 and the third axis A3 a universal joint, via which the formwork support 11 is connected to the beam in the loaded state in the first displacement position V1.
- the pin 1 3 can be conically shaped and secured by the split pin 14 against unintentional detachment from the contact element 8.
- the displacement element 6 and / or the contact element 8 can consist of solid material. In this case, there is only one guide channel 7 in the displacement element 6 as second guide means, which extends in the Y direction from one side of the displacement element to a second side opposite this side.
- one or more guide channels are not formed in the displacement element 6, but in each of the two tabs 5a of the connection element 2.
- a second guide means in the form of one or more webs is present in the displacement element 6, which engage in each of the tabs 5a and thus in the guide channel formed by each of the tabs.
- a guide channel is arranged in the slide element 6 on one side, for example the side of the displacement element 6 oriented in the -Y direction, and for the tab 5a opposite this side to have the screw 5b in order to engage in the guide channel, whereby On the other side opposite this side in the Y direction, the displacement element 6 has a web with a longitudinal axis in the Y direction, which engages in a second guide channel which is formed in the second tab 5a and which is opposite the other side of the displacement element 6.
- the support head 1 shown in FIGS. 1 to 3 can be designed with regard to its connecting element 2 with a hole pattern that is compatible with PERI construction supports.
- the connection can be made with dowel bolts with a diameter of 21 mm with respect to the pin 13 in a support bar in the form of a steel bar SRU, which can be designed as a cross bar of a VARIO slab formwork in a bridge trough.
- the support head 1 can have a weight of 2.6 kg in this embodiment and can be produced at a cost of less than € 20.
- the load capacity (preliminary statics) can be approximately 55 kN.
- the first axis A1 and the third axis A3 can be longitudinal and Carry out bank compensation in the form of a universal joint of approximately +/- 4 degrees in this embodiment.
- the column head 1 can be used, in particular, in the cycle sliding method, for example in bridge construction, for folding up the interior floor supports 10 while the VARIO floor formwork is being warped into a new concreting section.
- the warping of the VARIO slab formwork in the new concreting section forms a drawer solution for concreting, for example, a carriageway slab of a bridge to be erected.
- the first axis A1 enables an inclination compensation along a bridge trough and is advantageously designed as a screw connection according to FIGS. 1 to 3.
- the third axis A3 is designed as a dowel pin connection with the pin 13 and enables the inclination compensation across the bridge trough.
- the sliding element 6 and the contact element 8 can be designed together as a tube T-piece and in the sliding element 6 a guide track can be excluded, which enables a swiveling up transversely to the support bar in the form of the steel bar SRU with a very small installation height, because the connecting element 2 in The shape of the head plate can be pushed from a collision area with the displacement element 6 and / or the support bolt by moving from the first displacement position V1 into the second displacement position V2 (pivoting function of the support head 1 with respect to the formwork support 1 1 in the second displacement position V2 in the unloaded state) Status).
- the connection element 2 in the form of the head plate can finally have a square or rectangular shape with round recesses at the corners, which allow the support head to be fixed to the formwork support 11.
- the carrier bar 9 has an elongated shape with a longitudinal axis L in the Y direction and recesses 20 in a circular shape, into which the pin 13 can be inserted.
- the contact element 8 is arranged within the support bar 9 such that the pin 1 3 via the recesses 20 in the support bar 9 and Recesses 12 in the contact element 8 connect the support bar 9 to the support head 1 in such a way that the pin 1 3 forms the third axis A3.
- the lower side of the support bar 9 has a distance in the -Z direction from the upper side of the displacement element 6 in the Z direction in such a way that cross-slope compensation with a third angle g is possible.
- a cross-slope compensation by the angle g of approximately +/- 4 degrees may be possible in such a way that the beam 9 in the Y / Z plane can be rotated around the ceiling support 10, more precisely the formwork support 11, through the angle g .
- Fig. 4b a side view of the column head 1 is shown in the loaded state with a connected formwork support 11 and a connected beam 9, the beam 9 being semitransparent in cross section.
- the support head 1 with the connection element 2 connected to the formwork support 1 1 and the displacement element 6 in the first displacement position V1 is connected to the support bar 9 via the contact element 8 in such a way that the support head 1 is in the state loaded by the support frame 9, in which the column head 1 is supported by the formwork column 11 in essentially the Z direction.
- the width 8b of the contact element 8 corresponds to the width 9d "of a spacer rail 9d, which connects two U-profiles 9p ', 9p" facing away from one another on the upper side of both U-profiles 9p', 9p “shown in FIG. 4b. Since the height 8h of the contact element 8 essentially corresponds to a height 9h of the support bar 9 shaped as a double U profile minus the thickness 9d 'of the spacer rail 9d, the contact element 8 is almost completely inside the support bar 9 in the loaded state and / or in Relieved state when the beam 9 is placed on the ceiling support 10. The beam must not have a double U profile.
- the support bar 9 can be formed from at least two mutually substantially parallel and spaced apart profiles of substantially the same height, each profile being in the form of a rectangle, square, an F or another shape with or without rounded corners or edges exhibit.
- the height 8h of the contact element 8 can essentially be the height of the profiles of the support bar 9 correspond. Because of the cross-slope compensation via the third axis A3, there is a distance between the lower side of the support bar 9 in the -Z direction and the upper side of the displacement element 6 in the Z direction such that the contact element 8 is not completely inserted into the support bar 9.
- the distance between the support bar 9 and the displacement element 6 can, however, be chosen to be small with a small bank angle g or can be completely avoided in such a way that bank compensation via the third axis A3 is not possible.
- a cross-slope compensation can continue to take place.
- a longitudinal inclination compensation via the first axis A1 in the first displacement position V1 between the formwork support 11 and the beam 9 by the first angle a is possible.
- the distance between the lower side of the displacement element 6 and the second connection surface 4 of the connection element 2 is small, so that the first angle for longitudinal compensation is also small.
- the left-hand side 6s of the displacement element 6 shown in FIG. 4b is aligned with a lower left-hand side 9s of the carrier bolt 9 which bears against the displacement element 6 in the loaded state in the Z direction.
- FIG. 5a shows a side view of the column head 1 rotated by 180 degrees in relation to FIG. 4b in the loaded state with a connected formwork support 11 and a connected beam 9, the beam 9 being connected to a slab formwork 100. Due to the displacement of the first displacement position V1 with respect to a longitudinal axis of the second guide means in the form of the two mutually parallel guide channels 7 in the displacement element 6 in the Z direction, the column head is loaded by the formwork 100 with the beam 9 such that this load is caused by the column head 1 and the formwork support 11 is derived in a substantially negative Z direction.
- the first displacement position V1 is centered below the contact element 8 on a transverse axis 19 of the Carrier bolt 9, which extends perpendicular to the longitudinal axis L of the carrier bolt 9 in the Y direction. Since the contact element 8 has a shape corresponding to the interior of the double U-shaped support bar 9, the first displacement position V1 is not only on the transverse axis 19 of the support bar 9, but also on the longitudinal axis 18 of the contact element 8. In the first The displacement position V1 therefore forms the first axis A1 to compensate for longitudinal inclinations such that the load caused by the slab formwork 100 with the beam 9 is introduced into the slab support 10 without eccentric load introduction.
- the distance d1 between the lower side of the displacement element 6 and the second connection surface 4 of the connection element 2 allows the longitudinal inclination compensation and the third axis A3, which corresponds to the longitudinal axis 1 3 of the pin 3, allows the transverse inclination compensation due to the distance between the lower side of the beam 9 from the top of the displacement element 6, which can be clearly seen in FIG. 5a in contrast to FIGS. 4a and 4b.
- a flange of the formwork support 1 1 corresponding to the connection element 2 bears against the support head 1.
- FIG. 5b shows a side view of the support head 1 according to FIG. 5a in the unloaded state in the first displacement position V1.
- the distance d2 between the lower side of the displacement element 6 and the second connection surface 4 in the unloaded state is greater than the distance d1 in the loaded state, as a comparison between d1 and d2 shows.
- the distance d2 is the distance d1 and the fleas of the groove 7 'in the second guide means in the form of the two recessed guide channels 7, the fleas of the groove 7 corresponding approximately to the half of the diameter of the thread of the screw 5b. Due to the connection of the support bar 9 to the contact element 8 by means of the pin 13, the support head 1 is connected to the support bar 9 in the unloaded state.
- the difference between the quantities d2 and d1 is illustrated by a comparison between FIGS. 5a and 5b.
- the sliding element 6 in Fig. 5a covers 2/3 of the screw heads in the Z direction of the screws with which the connecting element 2 is connected to the formwork support 1 1.
- the underside of the displacement element is located above the upper sides of the screw heads of the screws with which the connection element 2 is connected to the Formwork support 1 1 is connected.
- the displacement of the formwork support 11 relative to the displacement element 2 is symbolized in FIG. 5b by an arrow within the formwork support 11 shown in the -Z direction.
- the screw 5b can be moved in the X direction within the guide channels.
- FIG. 5c is a side view of the column head 1 from FIG. 5a in the unloaded state now in the second displacement position V2.
- the furrow 7 'in the Z direction with respect to the second guide means with the guide channels 7 illustrates the first displacement position V1 when the web of the connecting element 2 in the form of the screw 5b is arranged within the furrow 7' about the first axis A1 below the transverse axis 19 to form the beam 9.
- the formwork support 11 is opposite the displacement position V1 in the X direction to the ends of the two opposite the displacement position V1 in the X direction
- Guide channels 7 of the second guide means shifted / pushed out.
- the direction of displacement from the first displacement position V1 to the second displacement position V2 runs in the X direction, as indicated by the arrow in the X direction.
- each of the two guide channels 7 forms a recess 7 "which has a longitudinal axis in the X direction.
- FIG. 5e shows the support head 1 according to FIG. 5d in a perspective view.
- connection element 6 with second guide means in the form of one of the two recessed guide channels 7 and the tabs 5a and the screw 5b as the first guide means of the connection element 2, which are arranged on the second connection surface 4.
- the support bar 9 has a hollow interior in such a way that the contact element 8 is arranged almost completely in the interior of the support bar 9, which leads to a low construction height of the support head 1 in such a way that the load on the ceiling support 10 is only slightly reduced by the additional static fleas of the Support head 1, which essentially consists of the fleas of the displacement element 6 in the Z direction, occurs.
- the support head 1 thus allows, by arranging the contact element 8 essentially within the support bar 9, only a small increase in the buckling length of the ceiling support 10 due to the compact design of the support head 1.
- the formwork support 11 can be fixed to the displacement element 6 and / or the support bar 9 by a fixing means, for example a wire be.
- a fixing means for example a wire be.
- FIG. 6a shows a cross-sectional view of a bridge with a carriageway slab 160 and the slab formwork 100 with slab supports 10 in the loaded state.
- Both floor props 10 run in the Z direction from the bridge trough 130 to the support bar 9 in the form of an SRU cross bar.
- the support head 1 forms a connecting link between the slab formwork 100 with the beam 9 and the formwork support 11.
- the carrier bar 9 is on a drive carrier in the form of an SRU Carrier mounted as a longitudinal beam in the X direction, which is shown in Fig. 6a as two rails on the outer sides of the beam 9.
- the driving beam 110 is mounted on a roller bearing 120 in such a way that the slab formwork 100 can be moved in the X direction or -X direction.
- the slab formwork 100 is lowered, as shown by the arrow in the -Z direction in FIG. 6a.
- the ceiling formwork 100 is lowered onto the roller bearings 120 using the ceiling supports 10 with the support head 1 in order to be able to be moved in the X direction, into the sheet plane.
- FIG. 6b shows an enlarged view of the support head 1 shown in FIG. 6a in a front view with a magnification of 5: 1 compared to FIG. 6a.
- the cross-slope compensation via the third axis A3 by the third angle g allows the underside of the carriageway slab 160 to be inclined in order to produce a desired inclination of the upper face of the carriageway plate 160 for the traffic to be carried on the bridge in the future.
- a corresponding inclination may be necessary, for example, in the case of a curve on a motorway, which is realized by a bridge.
- the ceiling formwork 100 comprises the beam 9, which is inclined by the angle g with respect to the Y direction in which the longitudinal axis of the screw 5b is oriented.
- the angle g is between the ceiling formwork 100 with the beam 9 and the ceiling support 10.
- a longitudinal inclination compensation with a rotation about the Y axis is possible via the screw 5b, but is not shown in FIGS. 6a and 6b, although such a longitudinal inclination could exist in or against the direction of travel on a sloping roadway.
- FIG. 6c shows a cross-sectional view of the bridge according to FIG. 6a, the two formwork supports 11 connected to the support head 1 being folded up.
- a traveling beam level 1 70 is defined by bulkheads or storage boxes 1 50, over which the girder bar 9 must be warped in order to arrive at the next concreting section.
- the formwork supports 1 1 are in the X direction, that is, in the sheet plane of Fig. 6c folded up by the second angle ß in such a way that the carrier bolt 9 can be moved / warped above the carrier level 1 70.
- FIG. 6d shows an enlarged view of the support head 1 shown in FIG. 6c in a front view, which is shown enlarged by a scale of 5: 1 compared to FIG. 6c.
- the ceiling formwork 100 with the beam 9 is with the column head
- connection element 8 is arranged within the carrier bar 9 and in the folded-up state only a width of the connecting element 2 protrudes from the carrier bar 9 in the -Z direction.
- the second connection surface 4 forms the surface which protrudes from the support bar 9 in the Y / Z plane.
- parts of the ceiling support 10 can be seen, which in the -Z direction only to a small extent via the shape of the connection element
- the bulkheads or storage boxes 150 allow only a small distance from the underside of the support bar 9, the ceiling supports 10 not having to be disassembled in a complex manner and having to be reassembled after the ceiling formwork 100 is warped, which would lead to an increase in the cycle speed, which is undesirable. Instead, the floor props 10 always remain in their statically intended position in relation to the beam 9, which minimizes the risk of incorrect use during warping of the floor formwork. Due to the low installation height, which is essentially defined by the dimensions of the connecting element 2 and its extension in the -Z direction, high FH obstacles in the bridge trough, for example internal bulkhead walls, storage boxes 1 50, for example for tendons etc. are run over without a collision. This is possible because the folded-up floor props 10 do not protrude beyond the carrier level 1 70 in a substantially negative Z direction.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20230310A RS64150B1 (en) | 2018-09-24 | 2019-08-01 | Stay head, ceiling stay, ceiling formwork and method for erecting such a ceiling formwork |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018123387.6A DE102018123387A1 (en) | 2018-09-24 | 2018-09-24 | SUPPORT HEAD, CEILING SUPPORT, CEILING SHIELDING AND METHOD FOR INSTALLING SUCH A CEILING SHELF |
PCT/EP2019/070755 WO2020064185A1 (en) | 2018-09-24 | 2019-08-01 | Stay head, ceiling stay, ceiling formwork and method for erecting such a ceiling formwork |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3857002A1 true EP3857002A1 (en) | 2021-08-04 |
EP3857002B1 EP3857002B1 (en) | 2023-01-25 |
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Application Number | Title | Priority Date | Filing Date |
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EP19749698.7A Active EP3857002B1 (en) | 2018-09-24 | 2019-08-01 | Stay head, ceiling stay, ceiling formwork and method for erecting such a ceiling formwork |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3857002B1 (en) |
DE (1) | DE102018123387A1 (en) |
ES (1) | ES2942860T3 (en) |
PL (1) | PL3857002T3 (en) |
RS (1) | RS64150B1 (en) |
WO (1) | WO2020064185A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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FR3092849B1 (en) * | 2019-02-18 | 2021-09-03 | Le Gall Stephanie | JUNCTION PART FOR A ROOM PARTITION AND PROTECTION SYSTEM, STAY and PARTITION system provided with such a junction part, AND IMPLEMENTATION PROCESS. |
AU2020265450A1 (en) * | 2019-04-29 | 2021-11-25 | Shinwide Pty Ltd | Prop head for formwork shoring and method of using same |
DE102021112759A1 (en) * | 2021-05-18 | 2022-11-24 | Wilhelm Layher Verwaltungs-Gmbh | scaffolding girders |
CN115030491B (en) * | 2022-06-07 | 2023-08-15 | 晟通科技集团有限公司 | Roof fixing device and method for adjusting supporting position of roof bar |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2128553B2 (en) * | 1971-06-09 | 1973-11-29 | Peri-Werk Artur Schwoerer Kg, 7912 Weissenhorn | Arrangement for attaching a coupling piece for concrete formwork |
AT3975U1 (en) * | 1999-05-17 | 2000-11-27 | Dingler Gerhard | HEAD CONNECTION FOR A PIPE SUPPORT |
DE20318912U1 (en) * | 2003-12-05 | 2004-03-04 | Doka Industrie Gmbh | formwork table |
KR101013148B1 (en) * | 2010-08-09 | 2011-02-10 | (주)대우건설 | Revolving Support of Table Form |
FR3027932B1 (en) * | 2014-10-30 | 2018-03-02 | Sateco | ASSEMBLY OF A FOLDING STRUCTURE OF WORK IN ENCORBELLEMENT AND A PLURALITY OF ARTICULATED SUPPORT STAYS |
FR3066208B1 (en) * | 2017-05-09 | 2019-06-14 | Alphi | BONDING DEVICE FOR FORMWORK TABLE |
-
2018
- 2018-09-24 DE DE102018123387.6A patent/DE102018123387A1/en active Pending
-
2019
- 2019-08-01 ES ES19749698T patent/ES2942860T3/en active Active
- 2019-08-01 PL PL19749698.7T patent/PL3857002T3/en unknown
- 2019-08-01 RS RS20230310A patent/RS64150B1/en unknown
- 2019-08-01 WO PCT/EP2019/070755 patent/WO2020064185A1/en unknown
- 2019-08-01 EP EP19749698.7A patent/EP3857002B1/en active Active
Also Published As
Publication number | Publication date |
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ES2942860T3 (en) | 2023-06-07 |
WO2020064185A1 (en) | 2020-04-02 |
EP3857002B1 (en) | 2023-01-25 |
DE102018123387A1 (en) | 2020-03-26 |
RS64150B1 (en) | 2023-05-31 |
PL3857002T3 (en) | 2023-06-05 |
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