EP1699984A1 - Element de decoffrage et decoffrage - Google Patents

Element de decoffrage et decoffrage

Info

Publication number
EP1699984A1
EP1699984A1 EP04765922A EP04765922A EP1699984A1 EP 1699984 A1 EP1699984 A1 EP 1699984A1 EP 04765922 A EP04765922 A EP 04765922A EP 04765922 A EP04765922 A EP 04765922A EP 1699984 A1 EP1699984 A1 EP 1699984A1
Authority
EP
European Patent Office
Prior art keywords
element according
shuttering element
shuttering
formwork
webs
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Withdrawn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
EP04765922A
Other languages
German (de)
English (en)
Inventor
René P. SCHMID
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.)
Agrar Chemie AG
Original Assignee
Agrar Chemie AG
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 Agrar Chemie AG filed Critical Agrar Chemie AG
Publication of EP1699984A1 publication Critical patent/EP1699984A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6816—Porous tubular seals for injecting sealing material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6806—Waterstops

Definitions

  • the invention relates to a shuttering element and a shuttering according to claims 1 and 43.
  • a sealing strip is known from EP 0 297 730 AI, which consists of a moldable plastic such as polyvinyl chloride.
  • a moldable plastic such as polyvinyl chloride.
  • projections are arranged on the two ends of the sealing strip and in the middle, which serve as anchors in the adjacent concreting section. At these projections swelling tapes are attached in part, which swell under water supply.
  • EP 0 804 656 B1 discloses a joint lath which has a base web on which an injection channel with an injection opening is arranged in the region of the longitudinal center.
  • This joint lath is made of a thermoplastic and has a high handling stiffness. High-pressure polyethylene is used as the thermoplastic, which, thanks to its hot formability, enables it to be adapted to complex shapes, angles and curves, with the joint slat being embedded in the center of the respective concrete section.
  • Formwork is required for the manufacture of a concrete component to enable the fresh concrete to be taken up.
  • the formwork is a tool that is only used for a short time and that applies to the different components, such as Foundations, walls, columns and ceilings must be coordinated.
  • the formwork has the task of withstanding the weight of the fresh concrete and the loads during concreting, i.e. that its shape and position must not change even after concreting. This is guaranteed by the interaction of the formlining and the supporting structure.
  • the formwork skin is the part of the formwork that comes into direct contact with the fresh concrete when concreting. It gives the component the shape and determines the appearance of the surface. The formlining must remain tight during concreting and during the hardening time of the concrete and evenly distribute the loads that occur on the supporting structure.
  • the formwork skin is composed of formwork panels that differ in the material used, the size and the connection options. Steel plates or boards can be considered as possible materials.
  • the supporting structure has the task of absorbing the loads of formwork, reinforcement and fresh concrete as well as workers, equipment and machines and transferring them to the sub-surface. In addition, the supporting structure must absorb the vibrations that occur during concreting and the fresh concrete pressure.
  • the supporting structure consists of formwork girders, formwork supports and the bracing of the formlining.
  • shuttering elements' which remain in the component. These are used when stripping is not possible or uneconomical.
  • the object of the invention is to provide a device which can be used both for sealing concrete joints and as a lost formwork element which remains in the concrete for the production of a component made of concrete and which has a relatively low weight, which means that it is on the construction site is easy to handle, process and connect, and is easy to manufacture or mold.
  • FIG. 1 shows an exemplary embodiment of a sound baffle according to the invention in cross section
  • FIG. 2 shows a further exemplary embodiment of a noise barrier with injection channel according to the invention in cross section
  • Fig. 4 shows the detail "variant 1" in Fig. 3 enlarged
  • FIG. 5 shows an application example of the noise barrier according to FIG. 3 with the detail "variant 1", in cross section;
  • Fig. 6 shows the detail "variant 2" in Fig. 3 enlarged
  • Fig. 7 shows an application example of the sound barrier according to Fig. 3 with the detail "variant 2", in cross section.
  • FIG. 1 shows an exemplary embodiment of the sound absorbing batten 1 according to the invention with a batten body 2 which has dimensions from 2 to 6 m for the length, in particular from 3 to 5 m; from 10 to 120 cm for the width, in particular from 20 to 80 cm; and from 3 to 10 mm for the thickness, in particular from 5 to 8 mm.
  • This slatted body 2 also has a particularly smooth outer surface 3 and an inner surface 4 on the concrete side, and longitudinal edges 5, 6, wherein anchoring elements 7 are arranged on the inner surface 4, preferably at equal distances from one another.
  • anchoring elements 7 have anchor webs 8 which extend in the longitudinal direction and which are shaped with a width of 1 to 12 cm, in particular 2 to 8 cm and a thickness of 3 to 10 mm, in particular 5 to 8 mm. On the longitudinal edges of these anchor webs 8 there are in each case oval-shaped beads 9 which have a larger cross section than the thickness of the anchor webs 8.
  • the anchoring elements 7 are arranged at a certain angle, preferably at an angle of 90 ° to the slatted body 2.
  • the slat body 2 is formed symmetrically to a transverse center plane 10 extending perpendicular to the slat plane.
  • No anchoring element 7 is arranged in the area of the plane 10 of the slat body 2.
  • the anchoring elements 7 serve as a labyrinth seal and extend the path of the penetrating water through their anchor webs 8 and the beads 9.
  • the slat body 2 is made of a hard plastic, in particular HDPE (high-pressure polyethylene), and has inherent rigidity.
  • the hard plastic is a thermoplastic that is dimensionally stable and resilient in a temperature range from -20 to +40 ° C, in particular from -10 to +30 ° C.
  • the sound absorbing batten 1 is combined in the area of its transverse center plane 10 on the inner surface 4 with an injection channel 11 (FIG. 2), which enables a joint to be subsequently sealed by pressing sealing material into defects in the joint area.
  • the preferably integrally formed in ection channel 11 is delimited by a top wall 12, two side walls 13, 14 and two partition walls 15, 16.
  • the top wall 12 is incorporated into the slatted body 2.
  • the side walls 13, 14 are spaced apart from one another and are preferably arranged perpendicular to the ceiling wall 12 and thus also to the slatted body 2. Again, perpendicular to the side walls 13, 14 and in a plane opposite each other, the intermediate wall webs 15, 16 are arranged.
  • the walls 12 Wall webs 15 and 16 are spaced apart by a slot 17. Injected sealing material can escape through this slot 17.
  • the side walls 13, 14 are preferably extended above the region to which the intermediate wall webs 15, 16 adjoin, and open into longitudinal side edges 18, 19, so that they join the adjacent wall webs 15, 16, which are interrupted by the slot 17, define a U-shaped recess or groove for receiving an open-cell filter foam strip 20.
  • This filter foam strip 20 fills with sealing material when injecting sealing materials and thus forms a further channel section running parallel to the injection channel 11 for receiving and distributing the sealing material.
  • the cell size of the open-cell filter foam strip 20 is selected such that no concrete penetrates the injection channel 11 through the slot 17 during concreting. However, the filter foam strip 20 is permeable to the sealing material injected under pressure into the injection channel 11, so that the sealing material can spread outward into an undesirable cavity and can ' fill' it in a sealing manner.
  • the slot 17 of the injection channel 11 is covered by a closed-pore, elastic material band, such as a rubber band (FIG. 2), which is impermeable to the sealing material.
  • the closed-pore, elastic material has a rectangular shape in cross section with a broad side surface 21 covering the slot 17, a broad side surface 22 lying parallel to the broad side surface 21 on the concrete, and two narrow side surfaces 23, 24 which abut the longitudinal side edges 18, 19.
  • the cross-sectional shape of the channel delimited by the longitudinal side edges 18, 19 and the intermediate wall webs 15, 16 is adapted to the shape of the closed-pore elastic material.
  • sealing material is injected into this injection channel 11 after pouring and setting the concrete, it lifts the closed-pore rubber from the intermediate wall webs 15, 16 and from the longitudinal side edges 18, 19 of the channel in a valve-like manner and can step out into adjacent cavities.
  • the rubber is compressed.
  • the pressure decreases, the rubber returns to its original shape, so that it rests again flat against the intermediate wall webs 15, 16 and on the longitudinal side edges 18, 19 of the groove of the noise barrier 1 and closes the slot 17 of the injection channel 11 in a valve-like manner.
  • FIG. 3 shows an arrangement of a formwork slat 1 according to the invention, which is embedded on the edge or on an outer surface in the joint area of two joint-forming concreting sections 25, 26, wherein it. 28 is perpendicular and thus also arranged to the forming abutment surfaces 27 to a joint 29 '.
  • the injection channel 11 is arranged in the region of the joint 29, the outlet slot 17 expediently being located at the level of the joint.
  • the baffle 1 Before the first concreting process, the baffle 1 is preferably fastened to a reinforcement, for example with wire rope or the like, the fastening of the baffle 1 being simple due to its high inherent rigidity and because it is self-supporting.
  • the sound-absorbing batten 1 can be stabilized from the outside by carrier elements (not shown), so that the stability as a sound-removing element is increased.
  • the sound barrier 1 is designed as a lost formwork element and thus remains in the concreting sections 25, 26.
  • the compatibility of the concrete with the sound-absorbing batten 1 made of hard plastic, in particular HDPE, is advantageous here and is further favored due to the high hard forces at the interfaces.
  • Liability at the interfaces between the The baffle 1 and the concrete can be improved by roughening the surface on the inner surface 4 of the baffle 1 or incorporating quartz sand or similar fine grains, so that a firm and tight connection between the baffle 1 and the concrete is achieved.
  • FIG. 4 shows an additional embodiment of the baffle 1, wherein notches are arranged in the region of the longitudinal edges 5, 6. These notches serve as predetermined breaking points 30.
  • a slat web 31 projecting, preferably at an angle of 90 °, is integrally formed on at least one longitudinal edge 5, 6, the longitudinal edge 5, 6 passing over a predetermined breaking point 30 into the slat web 31.
  • Figure 5 shows an application example of a Abschallatte 1 Variant 1.
  • a board-like support member 32 which, for example made of wood is made, is set below the bar web 31 and by means of nails 33 which are placed above the bar web 31, on the bar web 31 is attached.
  • the support element 32 on the one hand supports the stability and on the other hand avoids the contamination of the noise barrier 1.
  • To remove the support element 32 it is angled and broken off together with the crossbar 31 via the predetermined breaking point 30.
  • the support element 32 can also be fastened by nails 34 inserted over the inner surface 3 of the shuttering element 1 in the area of the slat web 31, a further predetermined breaking point 30 being provided below the nail locations, so that a further removable slat web 31 a is formed, which is connected to the Removing the slat 31 or thereafter with nails 34 is removed.
  • Figure 6 shows a further embodiment of the baffle 1, wherein a slat web 35 is formed in a lower end region of the baffle 1 with a predetermined breaking point 37, which projects beyond the base plate level 36 of the concreting section 25 (variant 2).
  • FIG. 7 shows an application example of the noise barrier 1 with variant 2. It is provided that a support element 38 is attached below the base plate level 36 and is fastened by means of nails 39, which are attached to the outer surface 3 of the noise barrier 1, via the crossbar 35.

Abstract

L'invention concerne un élément de décoffrage pour un décoffrage perdu servant à colmater des sections de bétonnage, cet élément étant essentiellement constitué par un corps de lattes (2) autoportant en plastique, lequel comprend une face externe (3), une face interne (4) côté béton et des arêtes longitudinales (5,6), des éléments d'ancrage (7) étant façonnés sur la face interne (4).
EP04765922A 2003-10-13 2004-10-11 Element de decoffrage et decoffrage Withdrawn EP1699984A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003147425 DE10347425A1 (de) 2003-10-13 2003-10-13 Abschalelement und Abschalung
PCT/EP2004/011354 WO2005038156A1 (fr) 2003-10-13 2004-10-11 Element de decoffrage et decoffrage

Publications (1)

Publication Number Publication Date
EP1699984A1 true EP1699984A1 (fr) 2006-09-13

Family

ID=34441892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765922A Withdrawn EP1699984A1 (fr) 2003-10-13 2004-10-11 Element de decoffrage et decoffrage

Country Status (3)

Country Link
EP (1) EP1699984A1 (fr)
DE (1) DE10347425A1 (fr)
WO (1) WO2005038156A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018112654A1 (de) * 2018-05-25 2019-11-28 Dicle Husseini Gebäudeschale

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501384C2 (de) * 1995-01-18 2001-10-04 Rene P Schmid Dichtungsvorrichtung zum Abdichten von Betonierfugen
AT404045B (de) * 1995-08-11 1998-07-27 Strasser Daniel Fugenband
DE19653816A1 (de) * 1996-12-21 1998-06-25 Betonol Planung Von Sperrbeton Fugenband und Verfahren zur Verwendung desselben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005038156A1 *

Also Published As

Publication number Publication date
WO2005038156A1 (fr) 2005-04-28
WO2005038156A9 (fr) 2005-07-07
DE10347425A1 (de) 2005-05-19

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