EP0709531A1 - Elément de coffrage - Google Patents

Elément de coffrage Download PDF

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Publication number
EP0709531A1
EP0709531A1 EP95114152A EP95114152A EP0709531A1 EP 0709531 A1 EP0709531 A1 EP 0709531A1 EP 95114152 A EP95114152 A EP 95114152A EP 95114152 A EP95114152 A EP 95114152A EP 0709531 A1 EP0709531 A1 EP 0709531A1
Authority
EP
European Patent Office
Prior art keywords
formwork element
element according
shielding surface
spacers
openings
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
EP95114152A
Other languages
German (de)
English (en)
Other versions
EP0709531B1 (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
Application filed by Individual filed Critical Individual
Publication of EP0709531A1 publication Critical patent/EP0709531A1/fr
Application granted granted Critical
Publication of EP0709531B1 publication Critical patent/EP0709531B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges

Definitions

  • the invention relates to a formwork element of the type specified in the preamble of claim 1.
  • a recessed support shoulder is formed in the standing concrete wall in the connection area.
  • a formwork element made of boards or polystyrene parts is integrated into the formwork of the standing concrete wall, e.g. a formwork element in box form. After the concrete has been filled and compacted in the formwork, this formwork element is removed again in order to achieve a perfect ceiling connection.
  • the preparation, insertion and removal of the formwork element is labor-intensive and costly, especially since the formwork element must be tailored to each.
  • an insulating plate is then installed in the support shoulder in order to prevent crack formation in the connection area of the cover plate. This is time consuming.
  • the invention has for its object to provide a formwork element of the type mentioned, with which the desired support shoulder can be produced universally with little labor and cost.
  • the lost formwork element no longer needs to be removed from the standing concrete wall. After the ceiling has been connected, it is integrated to transmit power without impairing the connection between the ceiling and the standing wall.
  • the formwork element can be easily prefabricated in the desired size or simply adapted to existing requirements at the construction site. It comes with the spacers fixed on the reinforcement part or on reinforcement parts, e.g. by roasting or welding. Concrete is filled in and compacted in front of and behind the shielding surface to the desired level on the support shoulder. Then concrete is filled in and compacted behind the shielding surface through the filling passages.
  • the perforations in the shielding surface enable a non-positive connection between the concrete and the shielding surface as well as a perfect connection to the ceiling, and above all the air outlet when the concrete is compacted.
  • the shape and size of the openings are such that the concrete does not pass unhindered when filling and compacting.
  • the consistency of the concrete even when compacting, prevents the concrete from rising up in front of the shielding surface on the formwork or from appreciably penetrating through the openings.
  • the formwork element is stable and can be fixed so stably by means of the spacers that it does not change its position under the rough working conditions when pouring and compacting the concrete.
  • At least one insulation board is sometimes attached in the support shoulder.
  • this insulation board is already attached to the formwork element according to claim 2, whereby time, work and costs are saved.
  • the embodiment according to claim 3 expediently builds on basic components known in this technology.
  • the longitudinal and transverse struts with the expanded metal are a product known under the trade name "Stremaform” ® (registered trademark), which is available in any sizes and formats as well as basis weights.
  • the spacers can be quickly and permanently fixed, expediently on the longitudinal and transverse struts of the Stremaform strip.
  • the sheet metal plate with the openings interlocks with the concrete, whereby the concrete cannot penetrate unhindered, to keep the support shoulder free from the specific shape and size. However, when the concrete is compacted, the air contained can be expelled, the expansive air expulsion being expediently ascertainable on the basis of the stillage which has passed through the openings.
  • the embodiment according to claim 4 is useful because, on the one hand, the insulation board finds a firm hold on the longitudinal or transverse struts, is easy to attach, and in addition leaves open the openings in the shielding surface through which air emerges when the concrete is compacted.
  • the embodiment according to claim 5 is stable and still simple to manufacture.
  • Structural steel rods are commercially available in different strengths.
  • the brackets can be bent in the desired shape and size on devices customary in this technology and can be attached in conventional welding devices.
  • bracket shapes according to claim 6 are suitable for easy handling and allow a stable fixing of the formwork element. They leave large concrete filling passages between them.
  • brackets For the durable fastening of the formwork element in a plurality of spaced-apart fastening points, a horizontal arrangement of the brackets is expedient.
  • the feature of claim 9 is advantageous because there are widely spaced support points on the reinforcement part of the standing wall, and even with reinforcement parts with a coarse grid there are enough contact points for the brackets of the formwork element.
  • the spacers can also be formed from flat iron, which are optionally bent so that they can be hung on the reinforcement part. It is conceivable to bend the spacers on site relative to the spacing surface in order to make a fine adjustment of the distance of the shielding surface from the reinforcement part or the depth of the support shoulder.
  • connection reinforcement parts are supported in through openings of the formwork element.
  • each push-through opening is expediently guided through the insulation panel in order to be able to introduce the connecting reinforcement parts.
  • connection reinforcement parts are already positioned in the formwork element from the outset. This saves time when preparing the ceiling connection. It is advisable to provide the push-through openings for the connection reinforcement parts according to a predetermined grid corresponding to the static requirements, or to design this grid from the outset in such a way that a wide range of variations is possible for attaching the connection reinforcement parts.
  • the embodiment according to claim 14 is particularly useful because the rising concrete is prevented from rising too far. If necessary, the additional shielding surface can be fixed with its own spacers or directly on other reinforcement parts of the standing concrete wall, which results in a very stable position of the formwork element results. In practice, however, it is also sufficient to attach the additional shielding surface to the formwork element itself.
  • an insulating plate can also be arranged on the further shielding surface.
  • formwork is made from formwork walls 1, 2 according to FIG. 1, which defines the later outer sides of the wall W.
  • Reinforcement parts 3, 4 are positioned between the formwork walls 1, 2, e.g. Structural steel mats.
  • a cavity 8 is left out, which delimits a support shoulder S for the ceiling connection in the finished concrete wall W according to FIG. 2.
  • a lost formwork element E is attached to at least one reinforcement part 4, e.g. by kneading or welding in areas 12.
  • the lost formwork element E consists of a shielding surface 10 to be arranged approximately vertically and spacers 11 protruding from the rear thereof, which extend to or into the reinforcement part 4 and are fixed there - as mentioned -.
  • the spacers 11 are designed so that they leave concrete filling passages 19 which extend from top to bottom.
  • the shielding surface 10 is provided with openings, as will be explained later.
  • concrete 5 is filled in from above in front of and behind the shielding surface 10 and, if necessary, compacted until a level 6 is reached. Thereafter, concrete 5 'is only poured in and compacted from above through the passages 19. The level of the concrete in front of the shielding surface 10 may rise slightly (indicated by dashed lines at 7).
  • the formwork walls 1, 2 are removed.
  • the formwork element E remains in the wall W.
  • the ceiling D made or attached later engages in the support shoulder S and is attached in the usual way, if necessary also to the reinforcement parts, e.g. 3, connected.
  • the formwork element E has a strip 15 with longitudinal and transverse struts 16, 17 and one as a shielding surface 10 plate 13 secured therebetween with openings 14).
  • the plate 13 expediently consists of expanded metal, for example 1 mm thick, with 16 x 6 mm openings.
  • the shielding surface 10 is, for example, a commercially available "Stremaform" element (registered trademark of Peca-Verbundtechnik GmbH).
  • the spacers 11, of which several are provided along the length and in the vertical direction of the strip 15, are welded to the longitudinal struts 17 at 18, for example.
  • the concrete filling passages 19 are free between the spacers 11.
  • FIG. 5 shows a perspective view of the formwork element E from FIG. 3 with a view of the rear side of the shielding surface 10.
  • the spacers 11 are brackets 20 bent from structural steel rods, with trapezoidal, rectangular or S-, for example, indicated in solid lines in FIG. Form, wherein either the free leg ends 21 and 22 are attached to the longitudinal struts 17 so that the central portion 23, which forms an elongated support portion, runs at a distance from the shielding surface 10, or the central portion 23 is attached to the longitudinal struts 17, e.g. is welded, so that the free leg ends 21 are at a distance from the shielding surface 10 and form elongated support sections.
  • brackets 20 can also be arranged in the vertical direction. It is conceivable to provide either only horizontally running or only vertically running brackets, or both horizontally running and vertically running brackets or brackets running obliquely to the longitudinal direction of the strip.
  • the spacers 11 could be curved flat bars 24 (indicated by dashed lines in FIG. 5), which can be hooked into the reinforcement part 4 with bent ends.
  • the height and the length of the shielding surface 10 depend on the desired size of the support shoulder S.
  • the length of the spacers or the distance between the shielding surface 10 and the front formwork wall 1 in FIG. 1 depend on the depth of the desired support shoulder.
  • the embodiment according to FIG. 4 differs from the embodiment of the formwork element E according to FIG. 3 by a further, approximately horizontally arranged shielding surface 10 ', which defines the lower limit of the support shoulder S and is fastened to the shielding surface 10 or to the strip 15 .
  • the further shielding surface 10 ' is expediently identical in structure and structure to the shielding surface 10 according to FIG. 5, i.e. it can consist of a strip 15 and expanded metal 13 (Stremaform) attached to it.
  • the shielding surface 10 could be expanded metal alone, with the spacers 11 being attached directly to the shielding surface. Instead of individual brackets 20 as spacers 11, structural steel coils could also be provided.
  • the shape and design of the spacers, like the design of the shielding surface, is irrelevant, provided that it is ensured that the filled concrete can interlock with the shielding surface and can be vented without being able to penetrate unhindered, and that the spacer concrete filling passages 19 for filling and compacting leave the concrete free.
  • an insulation panel P is fixed to the shielding surface 10, for example glued or attached with mechanical aids, for example to the cross struts 16.
  • the insulation panel P has the task of preventing or preventing crack formation in the ceiling connection suppress that can occur with a concrete connection between the ceiling and the standing wall.
  • the insulation board P can consist of, for example, 2.0 or 3.0 cm thick rigid polystyrene foam or mineral wool. It is convenient arranged at a distance in front of the shielding surface 10 so as not to close the openings 14 so that the air can escape when the concrete is compacted.
  • the insulation board P can also be fixed in front of the shielding surface 10. If necessary, an insulation panel P 'is also attached to the additional shielding surface 10'.
  • connection reinforcement parts (FIG. 6), indicated by dashed lines at 26, can be guided through the formwork element E and supported by them. These parts 26 are connected in the usual way with the other reinforcement parts 3, 4, and also with reinforcement parts (not shown) of the ceiling D.
  • the parts 26 can be U-shaped brackets or S-shaped brackets, which are through openings 25 in the Have the shielding surface threaded.
  • the formwork element E is completed from the start with positioned parts 26 or at least with the openings 25 in order to be able to use the parts 26 on site at the construction site as desired.
  • the openings 26 are expediently prepared in a predetermined grid in the formwork element E, e.g. Bores lying one above the other in pairs with a spacing of approx. 150 mm.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Bipolar Transistors (AREA)
  • Saccharide Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Weting (AREA)
  • Element Separation (AREA)
EP95114152A 1994-10-25 1995-09-08 Elément de coffrage Expired - Lifetime EP0709531B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9417137U DE9417137U1 (de) 1994-10-25 1994-10-25 Schalungselement
DE9417137U 1994-10-25

Publications (2)

Publication Number Publication Date
EP0709531A1 true EP0709531A1 (fr) 1996-05-01
EP0709531B1 EP0709531B1 (fr) 1999-12-15

Family

ID=6915295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114152A Expired - Lifetime EP0709531B1 (fr) 1994-10-25 1995-09-08 Elément de coffrage

Country Status (7)

Country Link
EP (1) EP0709531B1 (fr)
AT (1) ATE187795T1 (fr)
DE (2) DE9417137U1 (fr)
DK (1) DK0709531T3 (fr)
ES (1) ES2141286T3 (fr)
GR (1) GR3032671T3 (fr)
PT (1) PT709531E (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19758270A1 (de) * 1997-12-31 1999-07-01 Schoeck Bauteile Gmbh Aussparungselement
EP1079037A3 (fr) * 1999-08-20 2001-05-30 System Albanese Procédé de réalisation d'un coffrage de bordure de dalle et coffrage relatif

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2245523B1 (es) * 2001-03-16 2006-08-01 Jaime Olcina Feliu Encofrado perdido ultra ligero con estructura integrada para la formacion de bancales en vertederos, haciendolos aptos para la urbanizacion de los mismos.
FR3035425B1 (fr) * 2015-04-23 2018-04-13 Kp1 Dispositif de coffrage pour la fabrication d'un becquet de mur banche, element de coffrage perdu et aimant dudit dispositif de coffrage et procede de fabrication faisant application.
DE102020109530B3 (de) * 2020-04-06 2021-05-27 Max Frank GmbH & Co. Kommanditgesellschaft Schalungssystem

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2343394A1 (de) * 1972-08-30 1974-03-14 Billgren K L Verfahren zur herstellung eines betonkoerpers mit dekorativer oberflaeche
US3894368A (en) * 1972-06-27 1975-07-15 Percy Crofoot Beam end socket concrete form box
FR2325776A1 (fr) * 1975-09-25 1977-04-22 Int Tech Architectur Centre Procede de construction de murs
EP0070770A1 (fr) * 1981-07-16 1983-01-26 Ingenierie Et Coordination De La Construction Dispositif destiné à permettre l'appui d'un plancher sur un mur, et procédé de construction mettant en oeuvre celui-ci
WO1985005392A1 (fr) * 1984-05-22 1985-12-05 Max Brami Procede pour l'edification de murs de constructions et elements de sturcture pour la mise en oeuvre de ce procede
FR2644823A1 (fr) * 1989-03-21 1990-09-28 Laroche Jean Pierre Dispositif et procede d'obtention de repos peripherique des dalles et predalles en beton arme dans l'industrie du batiment et d'assemblage des armatures satisfaisant aux regles du beton arme
EP0586867A1 (fr) * 1992-09-08 1994-03-16 Peca-Verbundtechnik Gmbh Coffrage d'about

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894368A (en) * 1972-06-27 1975-07-15 Percy Crofoot Beam end socket concrete form box
DE2343394A1 (de) * 1972-08-30 1974-03-14 Billgren K L Verfahren zur herstellung eines betonkoerpers mit dekorativer oberflaeche
FR2325776A1 (fr) * 1975-09-25 1977-04-22 Int Tech Architectur Centre Procede de construction de murs
EP0070770A1 (fr) * 1981-07-16 1983-01-26 Ingenierie Et Coordination De La Construction Dispositif destiné à permettre l'appui d'un plancher sur un mur, et procédé de construction mettant en oeuvre celui-ci
WO1985005392A1 (fr) * 1984-05-22 1985-12-05 Max Brami Procede pour l'edification de murs de constructions et elements de sturcture pour la mise en oeuvre de ce procede
FR2644823A1 (fr) * 1989-03-21 1990-09-28 Laroche Jean Pierre Dispositif et procede d'obtention de repos peripherique des dalles et predalles en beton arme dans l'industrie du batiment et d'assemblage des armatures satisfaisant aux regles du beton arme
EP0586867A1 (fr) * 1992-09-08 1994-03-16 Peca-Verbundtechnik Gmbh Coffrage d'about

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19758270A1 (de) * 1997-12-31 1999-07-01 Schoeck Bauteile Gmbh Aussparungselement
EP1079037A3 (fr) * 1999-08-20 2001-05-30 System Albanese Procédé de réalisation d'un coffrage de bordure de dalle et coffrage relatif

Also Published As

Publication number Publication date
DK0709531T3 (da) 2000-05-08
DE9417137U1 (de) 1995-01-26
PT709531E (pt) 2000-06-30
ATE187795T1 (de) 2000-01-15
GR3032671T3 (en) 2000-06-30
DE59507428D1 (de) 2000-01-20
ES2141286T3 (es) 2000-03-16
EP0709531B1 (fr) 1999-12-15

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