EP1158105A2 - Coffrage - Google Patents

Coffrage Download PDF

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Publication number
EP1158105A2
EP1158105A2 EP01110757A EP01110757A EP1158105A2 EP 1158105 A2 EP1158105 A2 EP 1158105A2 EP 01110757 A EP01110757 A EP 01110757A EP 01110757 A EP01110757 A EP 01110757A EP 1158105 A2 EP1158105 A2 EP 1158105A2
Authority
EP
European Patent Office
Prior art keywords
formwork
bracket
walls
free leg
wall
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.)
Withdrawn
Application number
EP01110757A
Other languages
German (de)
English (en)
Other versions
EP1158105A3 (fr
Inventor
Willibald Fischer
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE2000125836 external-priority patent/DE10025836A1/de
Priority claimed from DE20009379U external-priority patent/DE20009379U1/de
Application filed by Individual filed Critical Individual
Publication of EP1158105A2 publication Critical patent/EP1158105A2/fr
Publication of EP1158105A3 publication Critical patent/EP1158105A3/fr
Withdrawn legal-status Critical Current

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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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/12—Tying means; Spacers ; Devices for extracting or inserting wall ties with arms engaging the 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
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics

Definitions

  • the invention relates to a formwork explained in the preamble of claim 1 Art.
  • Such formwork is known from CH-PS 459 518.
  • the well-known formwork consists of U-shaped brackets as a holding device for setting and maintaining the form of the formwork and at least two metal strips as the formwork wall, which are slotted like expanded metal, but with adjacent strips between the slots have friction beads and alternately to the outside and were looped out inside so that the formwork walls with these Loops can be pushed onto the free legs of the U-shaped bracket can make a rigid, wobble-free connection with the brackets.
  • the Formwork can be set up to save time and money and is very easy to use for the various types Formwork forms and conditions on site to adapt them has the disadvantage, on the one hand, that the material for the required slot and bending work is very expensive to manufacture, and the formwork is not there can be used where a concrete-tight formwork wall is required. Moreover
  • the sheet metal of the formwork wall must be relatively thin in order to bend it out to enable, however, on the other hand, the necessary strength reduced, so that the bracket must be arranged at a relatively short distance.
  • the bends result in an uneven surface, which is neither a contact surface e.g. for insulation material (because of the risk of accidentally backfilling it will still serve as the basis for dimensionally accurate attachments.
  • a strip foundation formwork with impermeable formwork walls and one open floor is also known from DE-GM 90 05 482.
  • the well-known Strip foundation formwork consists of a strip or plate-shaped formwork wall, either made of impermeable waffle or scale sheet or consists of a permeable, fine-mesh expanded metal mesh.
  • the stripes of the Formwork walls are at the predetermined points on parallel connecting rods welded on, so that they form an initially flat plate that so on the construction site is transported.
  • the connecting rods are then on the construction site following the formwork walls bent U-shaped, and thereby the finished foundation formwork.
  • the flat plate is easier to use transport as a finished foundation formwork, larger pieces still require still a relatively high effort. Also the simultaneous bending of all connecting rods on the construction site can cause problems.
  • Strip foundation formwork is known from DE-GM 89 02 480.
  • This Strip foundation formwork has a closed bottom and consists of strip or plate-shaped formwork walls that consist of a double sided Plastic films shrinked mesh mat were produced.
  • the holding device is here by the downwardly projecting ends of the vertically extending bars formed, which are pressed into a soft surface. That kind of Strip foundation formwork can be used for special purposes and carries the risk of Damage to the film due to sharp stones or the like.
  • double-wall sheets made of extruded plastic have been on the market can also be used for strip foundation formwork.
  • Both the attachment of the reinforcement elements and that Manufacture the rider from pieces of the double-wall sheet, which are spaced upwards Pointing free legs are provided with slots, is relatively expensive.
  • the cavities are parallel to the upper edge and parallel to the bending lines of the formwork.
  • the invention has for its object to provide a formwork, the time and is economical to produce, can also be produced with impermeable walls can be transported easily and space-saving even for larger dimensions can be.
  • the form according to the invention creates a formwork, the Individual parts can be transported easily, saving time and money on the construction site can be put together because the material of the formwork wall only needs to be cut to the required size, and that without any problems adapt to the most varied shapes and sizes of the concrete parts to be manufactured is.
  • the material of the formwork wall is relatively stiff, impermeable to concrete and even so that the distances between the brackets are chosen to be comparatively large formwork with impermeable walls can also be produced can and an exact contact surface is formed.
  • the invention is particularly suitable for the production of strip foundations in accordance with Claim 2.
  • the web double plate according to claim 3 can either made of plastic or other materials, such as cardboard.
  • the measure according to claim 4 can easily protect against corrosion for the free legs of the bracket can be significantly improved because of the If the formwork wall protrudes, there is sufficient concrete cover over the Bracket is guaranteed.
  • formwork is created in a simple manner, their width without problems, within specified limits, e.g. in different ways Widths of strip foundations can be set. Also results This gives you the opportunity to pre-formwork, for example in weather-related Times of a construction stop, to assemble and the pre-assembled formwork for storage and transport to fold up so that the finished formwork does not take up much more space than two stacked formwork walls (about 20 mm).
  • Claim 7 describes a particularly preferred embodiment of an inventive Formwork.
  • Claim 8 describes a particularly preferred arrangement of spacers and locking device.
  • Claims 9 and 10 describe preferred methods for producing concrete parts using the formwork according to the invention.
  • Fig. 1 shows part of a lost formwork 1 for the production of a concrete part.
  • the formwork 1 contains to produce a Strip foundations two strip-shaped formwork walls 2 and 3 and one open floor 4 for connecting the strip foundation to the ground.
  • the two strip-shaped formwork walls 2 and 3 are essentially identical trained and consist of a relatively stiff offered for formwork purposes extruded plastic double skin sheet.
  • such double-wall sheets consist of two parallel to one another extending plates 2a and 2b, which by a plurality of parallel webs 2c are held at a predetermined distance b from one another.
  • the webs 2c have a substantially equal distance a from each other, so that voids between them 5 are formed, which are parallel to each other through the entire web double plate extend.
  • U-shaped holding brackets 6 are provided, which consist of a correspondingly curved Reinforcing bar or the like.
  • a large number of U-shaped brackets 6 are provided, which are arranged so that their free legs 6a and 6b point upwards and their webs 6c as spacers across the open floor 4 and extend at right angles to the formwork walls 2, 3.
  • On those facing up Legs 6a and 6b are the formwork walls 2 and 3 with vertical and inserted parallel to the legs extending cavities 5 so that one of the free legs 6a, 6b of one of the brackets 6 is located in a cavity 5.
  • the strip-like formwork walls 2 and 3 are dimensioned so that their Height H is slightly greater than the length h of the free legs 6a, 6b between the Transition to web 6c and the upper end. In this way, the formwork walls 2 and 3 pushed up to the curved transition to web 6c without the ends of the free legs 6a, 6b over the formwork wall 2 or 3 project.
  • the number of U-shaped brackets 6 and the diameter of the free legs 6a, 6b are selected according to the desired strength.
  • the diameter d of the legs 6a, 6b is equal to the width b of the cavity 5 or slightly larger, so that the legs 6a, 6b with friction and essentially are immovably received in the cavities 5.
  • the distance a the Crosspieces 2c can be equal to the diameter d; however, it is sufficient for a frictional connection off if only one of the dimensions a, b is equal or slightly smaller than d.
  • the other Dimension can then be slightly larger than d, so that dimensional inaccuracies are compensated can be.
  • a modified strip foundation formwork 10 can be seen, which differs from 1 only differs in that the free legs 6a and 6b rotatable in the cavities 5 of the formwork walls 2 and 3 are added, but preferably still under friction, so that a certain Force is required to twist and the bracket does not accidentally or move automatically in the cavities 5.
  • This makes it possible to cover the two formwork walls 2 and 3 in the direction of the double arrow L, i.e. in the longitudinal direction, relative to each other and parallel to each other, which increases the width of the strip foundation determining distance D between the formwork walls 2 and 3 changes and the webs 6c are inclined to the formwork walls 2, 3.
  • the relative displacement of the two formwork walls 2 and 3 can go as far as that the two formwork walls 2 and 3 lie flat on top of each other, and for the transport does not take up much more space than two individual formwork panels.
  • the formwork 10 can, like the formwork according to FIG. 1, have a maximum D are used, D being determined by the length of the web 6c.
  • the Formwork 10 can, however, also be used to produce less thick foundations by the distance D, as shown in Fig. 3, by parallel displacement of the two formwork walls 2 and 3 in the longitudinal direction L is reduced.
  • the desired distance D is determined in the formwork 10 by a locking device 7 fixed.
  • This locking device contains at least in the illustrated embodiment one, better a pair of U-shaped brackets 8 and 9, which are analogous to the bracket 6 trained, sized and used.
  • Each of the brackets 8 and 9 is therefore with its (not shown) free legs in corresponding Cavities 5 of the respective formwork panel 2 and 3, while the drawn Extend webs 8c and 9c over the open top (or also the open bottom 4).
  • the two brackets 8 and 9 are each inserted into the cavities 5 in such a way that the two webs 8c and 9c run at an angle to one another; i.e.
  • each of the brackets 8 and 9 in the formwork walls 2 and 3 are in Longitudinal direction L offset against each other, the offset in the bracket 8 in the one direction and the displacement at the bracket 9 in the other direction.
  • the brackets 8 and 9 do not necessarily have to cross, as shown in FIG. 3 is, they can also be arranged zigzag or otherwise spaced provided that their webs 8c and 9c form an angle with one another.
  • An optimal one Stiffening effect is achieved when the two webs 8c and 9c together form an angle in the range of 90 °, for example between 30 and 120 °.
  • U-shaped brackets 11 and 12 are also provided, which preferably have a shorter web than the brackets 6, 8 or 9.
  • the web 11c of the bracket 11 is, for example, so short that it is the last cavity of the Formwork wall 2 of the formwork 10.1 with the first cavity of the formwork wall 2 of the formwork 10.2 can connect.
  • the bracket 12 forms a corner bracing, the web 12c of which is somewhat longer, so that it is, for example, the third last Cavity of the formwork wall 3 of the formwork element 10.1 with the Connect the penultimate cavity of the formwork wall 3 of the formwork element 10.2 can.
  • the predetermined Number of brackets 6 either on the construction site from reinforcement bars in the required number bent or already delivered to the construction site as finished parts.
  • Formwork walls 2 and 3 can also be made directly on site from one larger double-wall sheet can be cut out or also already pre-cut be delivered to the construction site. Then first one of the legs 6a of all brackets inserted into the predetermined cavities 5 of a formwork wall 2. Then the second formwork wall 3 with its cavities 5 pushed onto the second leg 6b. Any necessary insulation material (not shown) can either be firmly connected to the formwork walls in advance or used later.
  • a correspondingly cut strip of an Formwork material for example also a double wall sheet, on the webs 6c be placed so that the bottom is closed.
  • the formwork 10, the formwork walls 2, 3 moved parallel in the longitudinal direction can be made in advance from suitably cut formwork walls 2 and 3 and the required amount of brackets 6 of the predetermined Size assembled and then folded up when folded the construction site to be transported. There the formwork walls 2, 3 around the predetermined distance D apart and with the help of the locking device 7 fixed at this distance.
  • the free legs with the upper edge of the formwork wall to lock can also have other shapes accept and / or with differently curved brackets, for example V-shaped, built become. If additional stiffening is required, the Web of the U-shaped bracket, for example by a welded on all webs Holding rod to be fixed in their mutual position.
  • the brackets can the top of the formwork and / or the bracket of the locking device the floor span the formwork. Retaining bracket and the bracket of the locking device can also be provided on the same side of the formwork.
  • Double-skin sheet can also be other plate-shaped materials with natural Cavities or with additional attached cavity supports for a Pin joint can be used.
  • the joint does not necessarily have to be a pin hinge be formed, for example, the spacers in slots in slide the formwork walls so that a parallel displacement while reducing the distance between the two formwork walls is possible.

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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)
EP01110757A 2000-05-25 2001-05-03 Coffrage Withdrawn EP1158105A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10025836 2000-05-25
DE20009379U 2000-05-25
DE2000125836 DE10025836A1 (de) 2000-05-25 2000-05-25 Schalung
DE20009379U DE20009379U1 (de) 2000-05-25 2000-05-25 Schalung

Publications (2)

Publication Number Publication Date
EP1158105A2 true EP1158105A2 (fr) 2001-11-28
EP1158105A3 EP1158105A3 (fr) 2002-06-26

Family

ID=26005825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01110757A Withdrawn EP1158105A3 (fr) 2000-05-25 2001-05-03 Coffrage

Country Status (1)

Country Link
EP (1) EP1158105A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108589756A (zh) * 2018-06-27 2018-09-28 湖南省第六工程有限公司 建筑地基基础结构
US10988945B2 (en) * 2018-07-13 2021-04-27 Reform Masonry Products, LLC Masonry form system and method of using same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110828A1 (de) * 1991-04-04 1992-10-08 Hiendl Heribert Plattenmaterial sowie verfahren zu dessen herstellung
DE19712682A1 (de) * 1996-06-04 1997-12-11 Lothar Tiletschke Fundament-Seitenschalung
EP0892121A1 (fr) * 1996-01-31 1999-01-20 Jean Paul Tisserand Procédé de réalisation de structure rigide en polycarbonate ou PVC alvéolaire et utilisation du procédé dans la fabrication d'abris ou emballages
DE19852638A1 (de) * 1998-09-14 2000-03-30 Hummel Gmbh Schalungselement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110828A1 (de) * 1991-04-04 1992-10-08 Hiendl Heribert Plattenmaterial sowie verfahren zu dessen herstellung
EP0892121A1 (fr) * 1996-01-31 1999-01-20 Jean Paul Tisserand Procédé de réalisation de structure rigide en polycarbonate ou PVC alvéolaire et utilisation du procédé dans la fabrication d'abris ou emballages
DE19712682A1 (de) * 1996-06-04 1997-12-11 Lothar Tiletschke Fundament-Seitenschalung
DE19852638A1 (de) * 1998-09-14 2000-03-30 Hummel Gmbh Schalungselement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108589756A (zh) * 2018-06-27 2018-09-28 湖南省第六工程有限公司 建筑地基基础结构
US10988945B2 (en) * 2018-07-13 2021-04-27 Reform Masonry Products, LLC Masonry form system and method of using same

Also Published As

Publication number Publication date
EP1158105A3 (fr) 2002-06-26

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