EP3719236A1 - Support de coffrage, dispositif support et coffrage de plafond - Google Patents

Support de coffrage, dispositif support et coffrage de plafond Download PDF

Info

Publication number
EP3719236A1
EP3719236A1 EP19167082.7A EP19167082A EP3719236A1 EP 3719236 A1 EP3719236 A1 EP 3719236A1 EP 19167082 A EP19167082 A EP 19167082A EP 3719236 A1 EP3719236 A1 EP 3719236A1
Authority
EP
European Patent Office
Prior art keywords
formwork
support
holding
holding head
prop
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
Application number
EP19167082.7A
Other languages
German (de)
English (en)
Other versions
EP3719236B1 (fr
Inventor
Andreas ROSENBERGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Doka GmbH
Original Assignee
Doka GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Doka GmbH filed Critical Doka GmbH
Priority to EP19167082.7A priority Critical patent/EP3719236B1/fr
Publication of EP3719236A1 publication Critical patent/EP3719236A1/fr
Application granted granted Critical
Publication of EP3719236B1 publication Critical patent/EP3719236B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • 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
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • E04G11/52—Girders, beams, or the like as supporting members for forms of several units arranged one after another
    • 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
    • E04G25/04—Shores or struts; Chocks telescopic
    • 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
    • E04G2025/003—Supports therefor, e.g. tripods

Definitions

  • the invention also relates to a support device for a formwork beam.
  • ceiling formwork with longitudinal and transverse girders for supporting formwork panels are known (cf. WO 2016/116543 ).
  • the side members are mounted on the holding heads of formwork props.
  • the cross members are placed on the side members, across them.
  • formwork panels are placed on the cross members.
  • the formwork props absorb the vertical loads during the assembly of the formwork elements.
  • lateral forces occur, which are usually absorbed with support legs on the formwork props and sometimes with nailing of the longitudinal and transverse beams.
  • the disadvantage is that the space between the formwork supports is restricted by the support legs mounted below or the formwork of the longitudinal and cross members is made more difficult by the nailing.
  • the object of the present invention is to alleviate or eliminate at least individual disadvantages of the prior art.
  • the invention has a particular aim to provide a form support with which a reliable transfer of transverse forces can be achieved when used in a slab formwork.
  • the holding head has a first connection element for the detachable connection to a transverse rod essentially perpendicular to the formwork support.
  • lateral forces can be transferred from the holding head of the formwork prop directly to one end of the crossbar.
  • the other end of the crossbar is preferably connected to the holding head of another formwork prop, in particular to the laterally adjacent formwork prop. This results in lateral stabilization of the formwork prop.
  • the crossbar is designed to be essentially rigid in order to prevent the formwork prop from tilting about its longitudinal axis due to transverse forces. Since the holding head is arranged at the upper end of the formwork support, tilting forces are diverted at a favorable point, so that the ceiling formwork is reliably secured.
  • the crossbar between the holding heads of the formwork supports does not impair the passage spaces for the workers between adjacent rows of formwork supports, since the crossbar extends overhead between the formwork supports. Due to the connection of the cross bar to the holding head, the transverse forces are always absorbed directly under the formwork support, regardless of the set length of the telescopic formwork prop. Furthermore, the assembly of the crossbar on the holding head is particularly simple because the formwork carrier is also detachably attached to the holding head and the formwork carrier can thus be attached and the crossbar can be arranged at the same location.
  • the holding head with the connection of the crossbar takes on the lateral stabilization of the formwork prop as an additional function.
  • the connection element of the holding head is for a releasable connection with a corresponding one Connecting element of the crossbar set up.
  • the location and direction information relate to a vertical alignment of the formwork prop.
  • “Detachable” means that the connection can be established and detached several times, preferably without tools, without significant loss of functionality.
  • the holding head has a base body, in particular made of metal, on which the first connection element for the crossbar and the holding element for the formwork support are formed.
  • the connection element for the transverse rod and the holding element for the lower longitudinal area of the formwork beam on the base body are in one piece, i.e. from a single piece, without connecting devices, formed together. This creates a particularly simple, stable design.
  • two holding elements on opposite longitudinal sides of the holding head are designed to hold the opposite longitudinal areas of a lower strap of the formwork support.
  • a gripping element is provided as the holding element, which grips around one of the lateral longitudinal regions of the lower strap of the formwork support, i.e. at the sides and above.
  • Two encompassing elements are preferably provided for encompassing the two opposite longitudinal regions of the formwork support.
  • the holding head preferably has in each case at least one first connection element on opposite longitudinal sides of the holding head for the detachable connection to two transverse rods.
  • two transverse rods can be attached to each holding head, preferably each essentially perpendicular to the formwork support.
  • first connection elements are provided, preferably at opposite ends, on one longitudinal side and / or on the other longitudinal side of the holding head.
  • the first two connection elements on each longitudinal side can be connected to one another via a stiffening element.
  • a continuous first connection element extends on the one longitudinal side and / or on the other longitudinal side of the holding head essentially over the entire length of the holding head.
  • the crossbar can be mounted particularly easily.
  • the retaining bolt at one end of the crossbar is hooked into the receptacle on the retaining head from above.
  • the other end of the crossbar preferably also has a retaining bolt which is correspondingly hooked into the receptacle on a further retaining head.
  • the holding head preferably has an upwardly directed, in particular obliquely upwardly directed, guide hook adjacent to the receptacle for the holding bolt of the crossbar.
  • the guide hook has a guide surface with which the retaining bolt is guided towards the receptacle during assembly.
  • the transverse rod can be hooked into the receptacle from above with little effort.
  • first connection element and the second connection element are set up to fix the crossbar in the transverse and longitudinal direction of the holding head in the interconnected state.
  • the longitudinal direction of the holding head runs in the direction of the longitudinal axis of the formwork support.
  • a retaining bolt which is hooked into the first connection element of the retaining head, is preferably provided as the second connection element.
  • the transverse rod has a rod element and holders for the second connection elements at the opposite ends of the rod element.
  • the rod element preferably has a cross-section that is constant over its length, for example an essentially square cross-section. Of course, other cross-sections are also possible for the rod element, for example a round cross-section.
  • the cross bar is telescopic so that the length of the cross bar can be adjusted. In order to enable the transmission of the transverse forces in this version, the telescopic ability of the crossbar can be blocked in the set length.
  • two formwork supports are placed under at least two of the formwork supports described above.
  • the crossbar here connects the two holding heads of the formwork supports essentially perpendicular to the longitudinal axes of the parallel formwork supports.
  • further telescopic formwork props with a lower and an upper prop part for supporting the formwork props can be provided, but these do not have to have the holding head described above.
  • At least individual formwork supports are free of support legs which protrude from the lower support part. Due to the transverse stabilization via the crossbar, at least individual formwork props, preferably inside the ceiling formwork, i.e. not be dispensed with at the edge areas of the slab formwork.
  • Fig. 1 shows a ceiling formwork 1 with telescopic formwork props 2, which, as usual, each have a lower prop part 3 in the form of an outer tube and an upper prop part 4 displaceable therein in the form of an inner tube.
  • the length of the telescopic formwork prop 2 is adjusted by means of a locking element 5.
  • a nut is provided which is screwed onto an external thread of the lower prop part 3.
  • the formwork props 2 have at the upper ends of the upper prop part 4 holding or support heads 6, on which formwork supports 7 are supported.
  • transverse girders 8 are arranged, essentially perpendicular thereto, on which in turn formwork panels 9 are placed.
  • the tops of the shuttering panels 9 form the shuttering skin on which a concrete ceiling element (or a floor element) is poured.
  • the formwork props 2 each have a plurality of support legs 10 on the lateral edge regions of the ceiling formwork 1, which are supported on a floor surface 11.
  • the formwork props 2 in the interior of the ceiling formwork 1, between the lateral edge areas of the ceiling formwork 1, are free of such support legs 10, so that the formwork props 2 are supported on the floor surface 11 only via foot plates 12 at the lower ends of the lower prop parts 3. This leaves more space between the formwork props 2.
  • the formwork supports 7 each have an upper belt 13, a lower belt 14 and a web 15 connecting the upper belt 13 to the lower belt 14, so that the formwork supports 7 are I-shaped in cross section (perpendicular to the longitudinal axis).
  • the upper belt 13, the lower belt 14 and the web 15 are each formed predominantly from a wood material in the embodiment shown.
  • the formwork support 7 protective caps 16 made of plastic are provided.
  • At the first end of the formwork support 7 there is also a first connection strap 17 with a first coupling part 18 and at the second end of the formwork support 7 a second connection strap 19 with a second coupling part 20 is mounted.
  • the first and second connection tabs 19 are made of metal, preferably steel or aluminum, or of a plastic.
  • the formwork supports 7 can be connected to one another in pairs by hooking the first coupling part 18 of one formwork support 7 into the second coupling part 20 of the other formwork support 7.
  • the first coupling part 18 and the second coupling part 20 are thus set up for a detachable connection with one another.
  • a bolt 21 is provided as the first coupling part 18, and a bolt receptacle 22 in the form of an upwardly open recess is provided as the second coupling part 20.
  • the second connecting strap 19 also has a guide element 23 which protrudes obliquely upward from the second coupling part 20, here the bolt receptacle 20, in order to facilitate the hooking of the bolt 21 into the bolt receptacle 22.
  • the second connecting strap 19 has a retaining element 24 which covers the bolt receptacle 22 so that the bolt 21 strikes the retaining element 24 when it is lifted vertically. As a result, the formwork support 7 is secured against excavation.
  • a plate part is provided as the retaining element 24, which completely covers the bolt receptacle 22.
  • first connecting tab 17 and the second connecting tab 19 each have an upper support part 25 in contact with the inside 13a (ie with the side facing away from the shuttering panel 9) of the upper belt 13 and a lower support part 26 in contact with the inside 14a (ie with the side facing away from the formwork prop 2) of the lower strap 14 of the formwork support 7.
  • a favorable load transfer is thus achieved in the connected state of the formwork supports 7.
  • first connecting tab 17 and the second connecting tab 19 each have a fastening leg 27 on the opposite longitudinal sides 15 a of the web 15.
  • the fastening legs 27 are pushed onto the web 15 in such a way that the first coupling element 18 is arranged in front of the first end face of the I-shaped longitudinal section of the formwork support 7 and the second coupling element 20 is arranged in front of the second end face of the I-shaped longitudinal section of the formwork support 7.
  • the web 15 of the formwork support 7 each has at least one through opening 28, here two through openings 28 at longitudinal distances from one another, which in the assembled state are aligned with fastening openings 29 of the first connecting strap 17 and the second connecting strap 19, respectively, around the arrangement of fastening elements 30, here screws, to enable.
  • the holding head 6 has a first connection element 31, which is set up for a detachable connection to a second connection element 32 at the first end of a transverse rod 33.
  • the transverse rod 33 projects in a horizontal plane essentially perpendicular to the formwork support 7 from the holding head 6.
  • a corresponding second connection element 32 is provided, which is hooked into the corresponding first connection element 31 of the holding head 6 of the adjacent formwork prop 2 (cf. Fig. 1 ).
  • the holding head 6 has a base body 34 made of metal, on which the first connection element 31 for the crossbar 33 and two hook-shaped encompassing elements 35 - which are in connection with Fig. 17ff . are explained in more detail - are formed in one piece.
  • the holding head 6 in the embodiment shown has two first connection elements 31 on opposite longitudinal sides of the holding head 6 for releasable connection with two cross bars 33, so that the formwork prop in the state of use (cf. Fig. 1 ) through the cross bars 33 in both horizontal directions perpendicular to the Formwork supports 7 is supported.
  • the cross bar 33 has a bar element 33a, here for example with a square cross section, and brackets 33b at the opposite ends of the bar element 33a.
  • the second connection elements 32 here in the form of retaining bolts, are arranged on the brackets 33b, which are designed as fork elements in the embodiment shown.
  • first connection elements 31 are provided on each longitudinal side of the holding head 6.
  • a receptacle 36 for a retaining bolt 37 of the crossbar 33 is provided as the first connection element 31 of the holding head 6.
  • the holding head 6 has an upwardly directed guide hook 38 adjacent to the receptacle 36, that is to say directly adjacent to the receptacle 36, of the transverse rod 33.
  • the guide hook 38 protrudes obliquely upward from a lower end region of the holding head 6 in order to facilitate the arrangement of the holding bolt 37 during assembly.
  • FIGS. 17 to 20 show the connection of the holding head 6 to a head plate 39 at the upper end of the upper support part 4 of the formwork prop 2.
  • the holding head 6 has a horizontal base 40 with an upper side 40a for supporting the formwork support 7.
  • the two encompassing elements 35 protrude from the floor 40 and, in the assembled state of the formwork support 7, encompass the two opposite side edges of the lower strap 14 of the formwork support 7.
  • the gripping elements 35 are designed as L-angle parts.
  • Two securing elements 41 here in the form of securing pins, are provided on the underside of the base 40, which in the assembled state of the holding head 6 on the head plate 39 essentially fit precisely into corresponding securing elements 42, here in the form of securing openings, of the head part 39 of the formwork prop 2 are plugged.
  • the securing pins are arranged on opposite longitudinal sides of the base 40, each opposite one of the encompassing elements 35. In the embodiment shown, the locking pins are immovably connected to the base 40 of the holding head 6.
  • a locking element 43 is provided, which is displaceable to the underside 40b of the floor 40 while keeping a gap free, in order to fasten the holding head 6 to the head part 39 of the formwork prop 2.
  • the locking element 43 is arranged to be displaceable essentially in the longitudinal direction of the holding head 6.
  • a wedge 44 is provided as the locking element 43, which between a clamping position that clamps the head part 39 of the formwork prop (cf. FIGS. 21 to 26 ) and a release position releasing the head part 6 of the formwork prop 2 (cf. Figs. 17-20 ) is movable.
  • the wedge 44 has two wedge parts 45 which are spaced apart from one another in the transverse direction of the holding head 6 and which are connected to one another via a transverse part 46.
  • a holding flange 47 is bent downward from the opposite transverse sides of the base 40.
  • the holding flanges 47 each have two holding openings 48 for slidably receiving the wedge parts 45 of the wedge 44.
  • the transverse part 46 protrudes laterally beyond the wedge parts 45 to such an extent that the wedge 44 is arranged captive on the holding openings 48 of the holding head 6.
  • the holding head 6 also has an anti-rotation element 49 for securing the formwork support 7 against rotation during use.
  • the anti-rotation element 49 has a spring 50 which is positioned between a locking position (cf. Figs. 34 to 37 ) and an assembly or disassembly position releasing the rotation of the formwork support 7 is movable.
  • the spring 50 has a spring clip which can be pivoted between the securing position and the assembly or disassembly position.
  • the spring 50 has a bulge 51 for the temporary attachment of a tool (not shown) for transferring the spring 50 from the securing position into the dismantling position.
  • the bottom 40 of the holding head 6 has a recess 52, a holding section 53 of the spring 50 protruding upward through the recess 52 in the securing position and being lowered into the recess 52 in the assembly or disassembly position.
  • the holding portion 53 has a vertical holding surface 54, which is applied to a side surface of the lower strap 14 of the formwork support 7 in the state of use.
  • the holding section 53 has a horizontal pressure surface 55 (cf. Fig. 19 ), which facilitates the transfer from the assembly position to the secured position.
  • the spring 50 has an actuating section 56 with the bulge 51 for the tool.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP19167082.7A 2019-04-03 2019-04-03 Support de coffrage, dispositif support et coffrage de plafond Active EP3719236B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19167082.7A EP3719236B1 (fr) 2019-04-03 2019-04-03 Support de coffrage, dispositif support et coffrage de plafond

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19167082.7A EP3719236B1 (fr) 2019-04-03 2019-04-03 Support de coffrage, dispositif support et coffrage de plafond

Publications (2)

Publication Number Publication Date
EP3719236A1 true EP3719236A1 (fr) 2020-10-07
EP3719236B1 EP3719236B1 (fr) 2022-05-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114525925A (zh) * 2022-03-25 2022-05-24 福州市第三建筑工程公司 一种用于楼板的模板支撑装置以及拆装工艺
WO2023012675A3 (fr) * 2021-08-03 2023-04-20 Peri Se Système de poutre de grille pour coffrage de dalle
WO2023222487A1 (fr) * 2022-05-20 2023-11-23 Peri Se Élément de liaison destiné à des fins de liaison à un support
ES2956070A1 (es) * 2022-05-03 2023-12-12 Sist Tecnicos De Encofrados Sa Procedimiento de montaje de encofrado de techo y herramienta de izado de vigas

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4671465A1 (fr) 2024-06-24 2025-12-31 DOKA GmbH Procédé de construction d'un dispositif de sécurité antichute et dispositif avec grille antichute

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457136A (en) * 1973-09-21 1976-12-01 Mills Scaffold Co Ltd Builders formwork
DE4204788A1 (de) * 1992-02-18 1993-08-26 Peri Gmbh Kopflager
DE9421250U1 (de) * 1994-04-21 1995-08-31 Doka Industrie Gmbh, Amstetten Deckenschalungssystem zum Einschalen von Decken
DE10234445A1 (de) * 2002-07-29 2004-02-12 Peri Gmbh Deckenschalungselement eines Deckenschalungssystems
EP2080853A1 (fr) * 2008-01-17 2009-07-22 SAFE b.v. Élément récepteur stabilisateur pour structures temporaires
CN201738566U (zh) * 2009-12-08 2011-02-09 中国建筑第八工程局有限公司 应用于模板水平支承系统的定型化钢梁
WO2016116543A1 (fr) 2015-01-22 2016-07-28 Koninklijke Philips N.V. Procédé et appareil de préparation de nouilles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10352052B2 (en) * 2016-03-24 2019-07-16 Faresin Building S.P.A. Formwork for performing horizontal castings for the provision of floors
DE102019107464A1 (de) * 2019-03-22 2020-09-24 Polytech Gmbh Querhaupt, das an einer Baustütze oder einem Baugerüst-Stiel anbringbar ist

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457136A (en) * 1973-09-21 1976-12-01 Mills Scaffold Co Ltd Builders formwork
DE4204788A1 (de) * 1992-02-18 1993-08-26 Peri Gmbh Kopflager
DE9421250U1 (de) * 1994-04-21 1995-08-31 Doka Industrie Gmbh, Amstetten Deckenschalungssystem zum Einschalen von Decken
DE10234445A1 (de) * 2002-07-29 2004-02-12 Peri Gmbh Deckenschalungselement eines Deckenschalungssystems
EP2080853A1 (fr) * 2008-01-17 2009-07-22 SAFE b.v. Élément récepteur stabilisateur pour structures temporaires
CN201738566U (zh) * 2009-12-08 2011-02-09 中国建筑第八工程局有限公司 应用于模板水平支承系统的定型化钢梁
WO2016116543A1 (fr) 2015-01-22 2016-07-28 Koninklijke Philips N.V. Procédé et appareil de préparation de nouilles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023012675A3 (fr) * 2021-08-03 2023-04-20 Peri Se Système de poutre de grille pour coffrage de dalle
US12546127B2 (en) 2021-08-03 2026-02-10 Peri Se Grid beam system for slab formwork
CN114525925A (zh) * 2022-03-25 2022-05-24 福州市第三建筑工程公司 一种用于楼板的模板支撑装置以及拆装工艺
CN114525925B (zh) * 2022-03-25 2023-09-19 福州市第三建筑工程公司 一种用于楼板的模板支撑装置以及拆装工艺
ES2956070A1 (es) * 2022-05-03 2023-12-12 Sist Tecnicos De Encofrados Sa Procedimiento de montaje de encofrado de techo y herramienta de izado de vigas
WO2023222487A1 (fr) * 2022-05-20 2023-11-23 Peri Se Élément de liaison destiné à des fins de liaison à un support

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