EP0427025A2 - Coffrage pour la fabrication d'éléments en béton - Google Patents

Coffrage pour la fabrication d'éléments en béton Download PDF

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Publication number
EP0427025A2
EP0427025A2 EP90120048A EP90120048A EP0427025A2 EP 0427025 A2 EP0427025 A2 EP 0427025A2 EP 90120048 A EP90120048 A EP 90120048A EP 90120048 A EP90120048 A EP 90120048A EP 0427025 A2 EP0427025 A2 EP 0427025A2
Authority
EP
European Patent Office
Prior art keywords
formwork
side supports
base part
shuttering
attached
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
EP90120048A
Other languages
German (de)
English (en)
Other versions
EP0427025A3 (en
EP0427025B1 (fr
Inventor
Hansjörg Holzapfel
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.)
HOWAL GmbH
Original Assignee
HOWAL 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 HOWAL GmbH filed Critical HOWAL GmbH
Priority to AT90120048T priority Critical patent/ATE103233T1/de
Publication of EP0427025A2 publication Critical patent/EP0427025A2/fr
Publication of EP0427025A3 publication Critical patent/EP0427025A3/de
Application granted granted Critical
Publication of EP0427025B1 publication Critical patent/EP0427025B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article
    • B28B7/04—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article one or more of the parts being pivotally mounted

Definitions

  • the invention relates to a formwork for the production of prefabricated concrete parts, in particular rod and trough elements, with a vibratably mounted substructure and at least two side formworks attached to it and delimiting the concrete space, one of which is fastened to the substructure and the other for formwork the former can be moved away and consist of side supports spaced apart from one another and attached to them, variable formwork panels.
  • Formwork of the aforementioned construction is known as single or twin formwork (DE-PS 30 14 708). They are used to manufacture only rod-shaped prefabricated parts, such as supports, columns, purlins, beams, beams, posts and the like.
  • twin version of such formwork the two inner side formworks are rigidly connected to the substructure, while the side formworks arranged on both sides of the middle formwork can be moved to the sides in order to remove the formwork from the finished part to be able to carry out retrofitting, cleaning work etc. on the formwork itself.
  • Mechanical or hydraulic actuating devices can be used for moving.
  • Such formwork allows variations in the cross section of the finished part and, to a limited extent, also with regard to the shape of the finished part.
  • brackets protruding laterally between the side supports can be formed by means of variable formwork panels or recesses protruding into the cross section by means of corresponding cores. In all cases, only rod elements can be manufactured.
  • a formwork of the same structure is known in practice, but in which the side supports are enlarged to approximately rectangular frames and these are arranged perpendicular to the concreting space, so that the upper spar of the frame can also serve as a support for formwork surfaces, so that trough elements, profiles, angular finished parts, etc. can be manufactured.
  • a slice of such an element is practically concreted lying on the side formwork. Due to the laterally protruding frames that form the side supports, this formwork is very wide, and moreover, only those multi-surface structures can be produced that have sections that run at right angles to one another.
  • the height of the precast element is also the same due to the fixed dimensions of the side supports for bar and trough elements, and the possible variations are limited.
  • the invention has for its object to form a formwork of the aforementioned structure so that optional bar elements of any structure can be made without increasing the space requirement.
  • the side supports of at least one side Formwork consist of a base part connected to the substructure and a head part that extends upwards, which is pivotally attached to the base part and can be locked in the vertical basic position and at least one further position facing outwards from the concrete area.
  • the known, narrow-formwork is only a minor modification to a multi-purpose formwork.
  • the side supports In the basic position of the side supports, it is used to manufacture rod elements. By pivoting the head part outwards, any angular position relative to the base part can be set. If necessary, a grid can be specified for this.
  • a support structure is created for the support of formwork panels, so that trough elements, angle elements, coffered ceilings, balcony cups, panels, flat roof eaves, parapets, partition elements, roof trusses, bridge girders, multi-strip planks etc. can be manufactured by simply converting them .
  • With the invention it is also possible to better utilize such formwork in terms of time, so that the investment costs are considerably reduced in connection with the variety of products. Such formwork can easily be used all year round.
  • the side supports of each side formwork consist of a base part and a head part which extends this upwards, so that an upper support for formwork panels can be formed on both sides of the concreting room - even in the case of a twin version.
  • both concreting rooms can be used for the production of only one precast element in a twin formwork, but two identical or two different precast elements can also be produced in both concreting rooms at the same time.
  • An advantageous embodiment is characterized in that the head part is mounted on a pivot pin on the base part and can be locked via an elongated hole concentric with the pivot pin and a pin engaging therein. With such a design, the head parts can be manually adjusted in a simple manner and locked in the desired position.
  • the side supports of at least one side formwork are arranged so as to be variable in distance.
  • the support spacing can be set to the necessary level at high concrete pressures, in particular when the head part is pivoted away.
  • the concreting room can be used for side overhangs, e.g. for supports with brackets, for prefabricated cassettes or the like vary as desired, so that prefabricated parts of almost any geometry can be produced.
  • the variability of the spacing of the side supports can be achieved in a very simple manner in that the base supports are guided and locked against one another with their base part. It is usually sufficient if the side supports of only one side formwork are designed to be displaceable, so that, in particular in the case of a twin version, the middle side formworks can be fixed in place on the substructure.
  • the design is such that the side supports of the detachable side formwork are arranged next to one another on a sliding platform guided on the substructure and can be displaced on the sliding platform transversely to their moving back to change the distance.
  • all side supports of the one side formwork can be adjusted to the desired width of the concrete area relative to the stationary side formwork and can be moved away for demoulding by means of these drives. Furthermore, the side supports on the transfer platform can be moved transversely to change their distance from one another.
  • a twin formwork which has a substructure 1 consisting of longitudinal beams 2 and cross beams 3.
  • Imbalance exciters 4 for compacting the concrete are attached to the substructure 1.
  • a central formwork wall 5 is attached in a substantially fixed manner, which consists of a plurality of vertical supports 6, one of which is attached to each cross member.
  • side formworks 7 are arranged, which in turn have a plurality of side supports 8 arranged next to one another.
  • Each side formwork 7 forms a concreting space 9 with the middle formwork wall 5.
  • the side supports 8 of each side formwork sit on a transfer platform 10, which is slidably guided on the cross members 3.
  • the cross members are formed by two I-profiles 11 (see FIG. 4), the upper flange of which is overlapped by a sliding piece 12, which in turn is part of a side support 8.
  • the width of the concreting space 9 can be varied by moving the sliding platform 10, as indicated by the arrow 13 in FIG. 3.
  • the side supports 8 are with the transfer platform 10, for example wise via bolts 14, releasably connected ( Figure 3, 4) so that they can be moved in the longitudinal direction of the transfer table 10.
  • the distance between the side supports 8 can thus vary from one another. This adjustment of the side supports 8 takes place manually, while the adjustment of the sliding platforms 10 is preferably done hydraulically.
  • Formwork panels 15 are fastened to their inner sides of the side supports facing the concreting space, which are optionally additionally supported on the cross members 3 of the substructure 1.
  • the formwork panels 15 can additionally have cores 16 or cutouts 17 in order to mold correspondingly shaped brackets, supports, depressions, penetrations or the like on the finished part. Due to the adjustability of the side supports, these recesses or cores can be provided at any point.
  • any bar elements such as supports, columns, purlins, beams, beams, posts or, as shown by way of example in FIG. 2, balcony cups 18 can be produced.
  • each side support 8 consists of a base part 19 which sits on the sliding platform 10 and a head part 20 which is pivotably mounted on a joint 21 on the base part 19.
  • the head part 20 can be pivoted from a vertical basic position into an inclined or horizontal position facing away from the concrete space 9.
  • an elongated hole 22 is provided in the head part 20 which is concentric with the joint 21 and into which a clamping bolt 23 engages with a lever handle 24.
  • a T-bar 25 By pivoting the head part 20, for example, into the 5, a T-bar 25 can be produced (FIGS. 5 and 6), the upper flange of which in the exemplary embodiment shown has an outwardly decreasing cross section or an inclined bottom view that deviates from the horizontal.
  • the height of the web and the width of the belt can be varied by appropriate stripping.
  • the middle formwork wall 5 (see FIG. 1) of the twin formwork has been dispensed with or removed.
  • FIG. 7 shows an embodiment in which the head part 20 of the side supports 8 of the one side formwork 7 is arranged in an inclined manner and a formwork plate 26 with the same inclination angle is arranged on the middle formwork wall.
  • a T-profile 27 can be produced with a belt 28 inclined relative to the web 29.
  • This can be, for example, a bridge girder with a slope.
  • FIGS. 8 and 9 in turn show a complete twin formwork which has been converted to produce a ⁇ plate 30, the two webs of which are manufactured in the concreting areas between the middle formwork walls and the side formwork 7, while the flat plate is manufactured on the tilted head parts .
  • the cross-section of the web, the spacing of the web and the dimensions of the panels can be varied as required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP90120048A 1989-11-08 1990-10-19 Coffrage pour la fabrication d'éléments en béton Expired - Lifetime EP0427025B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90120048T ATE103233T1 (de) 1989-11-08 1990-10-19 Schalung zur herstellung von beton-fertigteilen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8913210U DE8913210U1 (de) 1989-11-08 1989-11-08 Schalung zur Herstellung von Beton-Fertigteilen
DE8913210U 1989-11-08

Publications (3)

Publication Number Publication Date
EP0427025A2 true EP0427025A2 (fr) 1991-05-15
EP0427025A3 EP0427025A3 (en) 1991-11-27
EP0427025B1 EP0427025B1 (fr) 1994-03-23

Family

ID=6844399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120048A Expired - Lifetime EP0427025B1 (fr) 1989-11-08 1990-10-19 Coffrage pour la fabrication d'éléments en béton

Country Status (3)

Country Link
EP (1) EP0427025B1 (fr)
AT (1) ATE103233T1 (fr)
DE (2) DE8913210U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991545A (en) * 1991-06-24 1999-11-23 Hitachi, Ltd. Microcomputer having variable bit width area for displacement and circuit for handling immediate data larger than instruction word

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2903755A1 (de) * 1979-02-01 1980-08-14 Rampf Kg Formen Gmbh & Co Betonschalung, insbesondere fuer brueckentraeger
EP0017630A1 (fr) * 1979-03-28 1980-10-15 Giuseppe Barale Système de coffrage pour la coulée de murs ou cloisons en béton et procédé pour l'assemblage de ce système
DE3014708A1 (de) * 1980-04-17 1981-10-22 Holzapfel & Walka GmbH, 7505 Ettlingen Schalung zur fertigung von beton-stabelementen
US4846437A (en) * 1987-02-12 1989-07-11 Fitzgerald Leonard R Bracket for supporting concrete formwork

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2903755A1 (de) * 1979-02-01 1980-08-14 Rampf Kg Formen Gmbh & Co Betonschalung, insbesondere fuer brueckentraeger
EP0017630A1 (fr) * 1979-03-28 1980-10-15 Giuseppe Barale Système de coffrage pour la coulée de murs ou cloisons en béton et procédé pour l'assemblage de ce système
DE3014708A1 (de) * 1980-04-17 1981-10-22 Holzapfel & Walka GmbH, 7505 Ettlingen Schalung zur fertigung von beton-stabelementen
US4846437A (en) * 1987-02-12 1989-07-11 Fitzgerald Leonard R Bracket for supporting concrete formwork

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991545A (en) * 1991-06-24 1999-11-23 Hitachi, Ltd. Microcomputer having variable bit width area for displacement and circuit for handling immediate data larger than instruction word

Also Published As

Publication number Publication date
EP0427025A3 (en) 1991-11-27
ATE103233T1 (de) 1994-04-15
EP0427025B1 (fr) 1994-03-23
DE59005093D1 (de) 1994-04-28
DE8913210U1 (de) 1989-12-14

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