EP1146180B1 - Procédé pour la fabrication d'un élément de plancher en béton et élément de plancher en béton - Google Patents

Procédé pour la fabrication d'un élément de plancher en béton et élément de plancher en béton Download PDF

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Publication number
EP1146180B1
EP1146180B1 EP01109123A EP01109123A EP1146180B1 EP 1146180 B1 EP1146180 B1 EP 1146180B1 EP 01109123 A EP01109123 A EP 01109123A EP 01109123 A EP01109123 A EP 01109123A EP 1146180 B1 EP1146180 B1 EP 1146180B1
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EP
European Patent Office
Prior art keywords
concrete
mould
process according
support elements
elements
Prior art date
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Expired - Lifetime
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EP01109123A
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German (de)
English (en)
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EP1146180A1 (fr
Inventor
Ute Huk
Werner Simon
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Huk Ute
Simon Werner
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Huk Ute
Simon Werner
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Publication of EP1146180A1 publication Critical patent/EP1146180A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
    • E04C3/205—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members with apertured web, e.g. frameworks, trusses
    • 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
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • 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
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/06—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement with beams placed against one another optionally with pointing-mortar

Definitions

  • the invention relates to a method for producing a Concrete ceiling element and a concrete ceiling element.
  • a concrete ceiling element in which a plurality of carrier elements partially in one Shuttering plate are cast.
  • the carrier elements consist made of concrete, which can be reinforced. Because of the use of Concrete for the production of the carrier elements have such carrier elements a particularly high flexural rigidity.
  • In connection with the formwork panel can be as a concrete ceiling element be prepared, which in turn a has extremely high bending stiffness.
  • Such concrete ceiling elements need to apply before applying the site concrete layer not supported or subjugated. This saves costs and speeds up the construction progress.
  • EP 0 949 387 A1 states that the carrier elements are initially separate be made by casting. Subsequently, a Plurality of the support elements in a formwork or mold pad placed and then cast the concrete formwork panel. In particular, via the production of reinforced carrier elements nothing is stated in EP 0 949 387 A1.
  • EP 265 301 is a method for producing a Reinforced concrete precast known. Here are the Making breakthroughs in a mold one after another forming cores retracted and after hardening of the concrete in succession pulled out again
  • a soil which consists of individual, made of reinforced concrete beams and cross connections consists.
  • the carriers have a lattice. In the meshes of the grid intervene in the cross-connections. Using fits that interfere with the cross connections and press against the carrier, the cross connections are on fixed to the carriers and the dimensional stability of the recesses guaranteed.
  • EP 0 949 387 A1 discloses a concrete ceiling element with a Concrete formwork panel and a plurality of with the Shuttering panel by sheathing connected carrier elements.
  • Each carrier element is designed as a concrete carrier element, which on the concrete shuttering facing away from the side has a strut. From the strut extend individual Cross struts away in the area of concrete formwork panel, the is cast on the cross struts.
  • the object of the invention is to be as universal and cost-effective method for producing a concrete ceiling element to indicate with that without providing a subjugation a concrete ceiling can be produced.
  • the proposed method allows for easy, fast and cost-effective way of producing concrete ceiling elements. Another significant advantage is that under Use of the concrete ceiling elements according to the invention Concrete pavement made without the provision of a Unterjochung can be.
  • the support elements can be prefabricated become.
  • carrier elements of various types can be used Lengths, e.g. in length increments of 10 cm length difference, be kept in stock. If necessary, such Carrier elements for the production of concrete ceiling elements immediately available.
  • the diagonals are welded by spot welding, Binding or using connectors with the Upper and lower belt connected. Since the Arm istsgerüst with Concrete is poured, it is not necessary to connect at each point of contact of the diagonal with the upper or To produce bottom chord. This saves further costs.
  • the projections can rechtkkig or in the form of a truncated cone. They extend each over the entire height of the longitudinal wall / walls and / or the entire width of the floor. With a In such a form carrier elements can be produced, the Top to the projections corresponding recesses having. Such recesses serve to insert reinforcing bars. Further, manufactured in such a form Carrier elements on their longitudinal walls also recesses and / or grooves. The recesses and grooves are lost essentially vertical. The grooves are used for recording of shear plates. The recesses form with a later one infused place-concrete a gearing, which shear forces, in particular transverse thrust forces, absorbs.
  • b Means to adjust of Arm michsgerüsts are introduced into the mold. It may be e.g. act around cones, which before the Inserting the Arm michsgerüsts be retracted into the mold and the reinforcing skeleton in a predetermined position hold. Furthermore, before step lit. b spacers be attached to the Arm michsgerüst. At a corresponding Design of the spacers can be on the means for Adjusting the Arm michsgerüsts also be waived.
  • the reinforcing skeleton hanging on over the lower flange protruding sections of the Diagonals are kept in shape. In this case can on both adjustment means and spacers be waived.
  • the proposed method variant allows a particularly cost-effective production of the concrete support element.
  • the reinforcing framework can thus be inserted into the mold that the mandrels from a longitudinal wall of the form forth through the Passage surfaces are movable. But it can also be so in the Form are used, that the mandrels of a soil or an opening of the shape forth through the fürgriffs vom are movable. The latter alternative is then preferred if a quick demoulding is desired.
  • the dimensional stability the support element is at a vertical Einund Extension of the cores higher.
  • the concrete is compacted after pouring into the mold.
  • To the mold may be received on a vibrating table.
  • Concrete can also be self-compacting fluid concrete used become. In this case, it is not necessary to use the concrete to compact by shaking.
  • the concrete when pouring into the mold a soil-moist consistency Has. In this consistency is a very fast consolidation of concrete.
  • the demoulding can already be short Time after pouring the concrete done. It can also Shotcrete may be used, optionally also an injection molding dipping process.
  • In place of the reinforcing framework can also Concrete with steel fiber additive can be used.
  • the demolding immediately after compression, wherein the concrete has a still earth-moist consistency.
  • the demoulding So it can be done after the shaking.
  • the proposed Fast demoulding leads to a rough training the walls of the support elements. This will be a special good and intimate connection with the site-concrete achieved.
  • the shape in one essentially parallel to the transverse walls extending cross-section is rectangular.
  • Such a cross section allows a high degree of filling of the form with reinforcing iron.
  • the Arm istsgerüst can also in Cross-section are formed rectangular, what its flexural rigidity further increased.
  • the mandrels at the same time retracted through the pass-through surfaces and / or pulled out at the same time. It has showed that in particular the simultaneous withdrawal the mandrels improved dimensional stability of the produced Carrier element has the consequence.
  • the support elements are expediently after removal from the mold heated to a temperature in the range of 30 to 40 ° C. Such heating can take place in a curing chamber.
  • the Holding times are usually 8 to 24 hours.
  • the formwork points to a further embodiment a, preferably circumferential, projection to form a, preferably formed in the manner of a circumferential groove, Recess in the front wall of the concrete formwork panel.
  • a recess serves to receive fitting elements.
  • the groove may have different shapes. She may be suitable to be rectangular in section, square or triangular shaped fitting elements.
  • Such Fitting elements contribute to the fact that the undersides are adjacent Concrete ceiling elements lie in one plane. It will an edge offset of adjoining concrete ceiling elements avoided.
  • At least the edges and parallel to the edge of the concrete formwork panel arranged carrier elements can at least another breakthrough for inserting a means for Balancing an edge offset have.
  • a means for Balancing an edge offset becomes the support element in the manufacture of concrete formwork panel so held or supported in the formwork, that the further openings in each case the same distance from Have bottom of the formwork.
  • the further breakthroughs can e.g. be formed in the form of slots or slots.
  • the support elements in opposing one another Arrangement of vertical grooves for insertion of thrust plates be provided.
  • thrust plates serve in an advantageous manner Way of absorbing shear forces.
  • the side walls of the support elements also Projections to form a shear gearing with the site concrete exhibit.
  • An end wall of the concrete shuttering panel may be at least one Recess, preferably in the manner of a circumferential groove, for Have recording of passport elements.
  • the fitting elements can be glued into the recess.
  • the fitting elements are corresponding formed to the groove. They serve in addition or also as an alternative to the means for compensating an edge offset also for exact and dislocation-free adjustment adjacent concrete ceiling elements.
  • the upper edges of the Bevelled concrete formwork slab This allows the inflow of the site concrete in the area of the joint and its fixation.
  • the walls of the carrier elements are preferably rough educated. So can a particularly firm and intimate connection be reached with the place concrete.
  • an apparatus for carrying out the inventive Procedure is a boxy form of a ground, two formed opposite longitudinal and two transverse walls, wherein a plurality of juxtaposed mandrels at the same time in the space enclosed by the mold are extendable. This can be done in a particularly efficient way the inventive method can be realized.
  • the mandrels are by in the ground or in one of the longitudinal walls provided Breakthroughs extendable and retractable. But you can also go to the Surrounded by the longitudinal and transverse walls opening of the mold immersed become.
  • the mandrels can be round in cross-section, after a kind of a slot, rectangular, triangular or Trapezoidal be formed. As particularly useful It turned out that the corners of the rectangles, triangles or Trapeze are rounded. This facilitates the extraction of the Form cores and further increases the flexural rigidity of it produced carrier element.
  • a longitudinal wall or the floor can be formed as rust, so that the extensions of the Arm istsgerüsts in the inserted state pass through the rust.
  • the top serves as a contact surface for a peel-off rail for stripping a site concrete layer.
  • one on a second longitudinal wall adjacent doubling is provided, whose thickness is greater or equal to the distance above the lower flange protruding Extensions is.
  • the doubling can be made of polystyrene or from a plurality on the longitudinal wall fixed elastic Be made slats or knobs.
  • the concrete ceiling element according to the invention can also be prestressed be. It may do so for the manufacture of the carrier element used a shape with a given curvature become. But it is also possible, after the Arm michsgerüst to bias the introduction into the mold and this in the prestressed Condition with concrete. - Prestressed carrier elements are ideal for the production of concrete ceiling elements, with spans of more than 7 m can be realized without Unterjochung.
  • Figs. 1 to 3 are plan views and sectional views a form shown in different states.
  • the in cross section rectangular shape has a first 1 and a second longitudinal wall 2, a first 3 and a second transverse wall 4 and a bottom 5.
  • the bottom 5 is with breakthroughs provided, pass through which mandrels 6.
  • the im Cross-section triangular shaped cores 6 are on one Support plate 7 was added.
  • On the support plate 7 are also the transverse walls 3, 4 and the first longitudinal wall 1 attached.
  • the support plate 7 is vertical relative to the bottom 5 movable.
  • projections 17 are attached at regular intervals.
  • the projections 17 here have a rectangular profile.
  • the profile can also be frusto-conical.
  • the width of the projections is suitably about 50 mm; whose height is 40 to 60 mm. The height depends on the Strength of the reinforcing grid, which in through the protrusions 17 recesses formed at the top O of the concrete brace should be inserted. It must be ensured that the Overlapping of the reinforcement grid with site concrete always at least 30 mm.
  • the cross section of the mandrels 6 is adapted to the shape of the Penetration surface 11.
  • the penetration surface 11 may e.g. also Trapezoidal be formed. In this case, too Shaped cores 6 trapezoidal in cross-section.
  • the geometry and the strength of the reinforcing skeleton is accordingly adapt.
  • the corners of the mandrels may preferably be rounded (not shown here).
  • the second longitudinal wall 2 in a horizontal Be moved direction.
  • the first longitudinal wall 1 and the Transverse walls 3, 4 can together with the support plate 7 relative are moved vertically to the bottom 5.
  • the mold can be placed on a vibrating table (not shown here) be included. After pouring the concrete 15 this is compacted by shaking. When using precompressed Concrete 15 can also be dispensed with the Hinttelvorgang become.
  • the second longitudinal wall 2 of the mold After a setting time of about two to five minutes will be the second longitudinal wall 2 of the mold in a horizontal direction pulled away (not shown here). Subsequently, the Support plate 7 with the attached cores 6, the Transverse walls 3, 4 and the first longitudinal wall 1 relative to the ground 5 moves down. The carrier element B is then removed from the mold. It can be lifted from the ground 5 and transported away. The mold is for the production of the next support element B available. Removing the longitudinal walls or too The entire demolding process can also be done immediately after Shaking done. In this case, the walls are the concrete strut B rough trained. The rough education of the walls contributes to an improved connection with the site concrete. 4, another form is shown in cross section.
  • a third form is shown.
  • the carrier plate 7 arranged vertically. She is relative to the second Longitudinal wall 2 displaceable.
  • the attached to the support plate 7 Form cores 6 pass through corresponding openings (not shown here) of the second longitudinal wall 2.
  • the bottom 5 has further breakthroughs through which the extensions 12th succeed.
  • the bottom 5 is designed as a grate.
  • the armor scaffolding Here A only consists of an upper 8 and a lower flange 9, which is connected by diagonals 10 are.
  • FIGS. 7a-g show schematic cross sections of the invention produced support elements B, these being different have configured Arm michsgerüste A. It can Arm michsgerüste with one, two or three Ober- 8 and 9 are to be infused. Depending on the requirement of the Bending stiffness of the support elements B can Arm michsgerüste A in cross section e.g. also rectangular be.
  • the carrier element B shown in FIG. 7g can also be used as a decker element Cover or as a cover for receiving walls to be used.
  • the carrier element according to FIG Longitudinal walls in cross-section on a groove.
  • Such Groove further contributes to increasing the flexural rigidity of Carrier elements B at.
  • Fig.7h is the cross section of the carrier element B executed in the manner of a truncated cone. A Such cross-sectional shape can be particularly easy with site concrete umgie hybrid.
  • FIG 8 is a perspective support element according to the invention shown.
  • An upper side O of the carrier element B points in regular intervals 18 wells.
  • the recesses 18 have a depth of more than 30 mm. The depth is preferably 40 to 60 mm.
  • the length of the recesses 18 is chosen so that a reinforcing grid completely in the recesses 18 of the support element B engages. Over a Underside U stand out the extensions 12.
  • Fig.9 is the production of a concrete ceiling element schematically shown.
  • the distributors 19 are equipped with (not shown here) Provided spacer elements.
  • the arrangement of the distributors 19 and the spacer is decisive for the Recording the weight and adjusting the support elements B.
  • the support elements B are perpendicular to the manifolds 19th arranged. They lie with their underside U on the distributors 19 on. Possibly provided extensions 12 are not enough to the bottom of the formwork or box 20.
  • Fig.10 is schematically the production of a concrete ceiling shown using the concrete ceiling element of Figure 9.
  • the concrete ceiling elements according to the invention can without Unterjochung be placed on the floor to be spanned. Subsequently Be reinforcement grid 21 so on the concrete ceiling elements placed them in the hollows 18 of the Carrier elements B come to rest. Reinforcement grid 21 are suitably placed so that they have several concrete ceiling elements overlap. Then the infusion takes place the site concrete layer.
  • the site concrete layer is by means of a Pulled off peel, where as a contact surface of the peel the top O of the support elements B is used.
  • the carrier element B according to the invention is suitable for the production of prefabricated concrete wall systems, special constructions, Beamed ceilings, ⁇ plate elements and beams.
  • the randliche support elements of the concrete ceiling elements are respectively with the reference numeral 22, cast thereon the concrete formwork panels designated by the reference numeral 23.
  • the support elements 22 and B can have openings 24, which is primarily an influence and intimate interlocking with the place concrete allow. Further breakthroughs are in the form of cylindrical holes 25a or slots 25b educated.
  • the marginal support elements 22 are preferably designed so that with adjacent concrete Deckenele-elements a hole 25a approximately in the center of a slot 25b the carrier element 22 of the opposite concrete ceiling element opposite. That allows the means to compensate for an edge offset of a bottom U 'of Concrete ceiling elements even with a lateral offset of To install concrete ceiling elements.
  • the further openings 25a and 25b have lower surface portions on which near the bottom of the concrete formwork panel to find oneself.
  • a distance down between the further breakthroughs 25a and 25b and their lower surface portions is chosen so that he at least in the marginal Carrier elements 22 is always the same size.
  • the production an equal distance Ab can by providing suitable holding devices for receiving the randlichen Carrier elements 22 when casting the concrete formwork panel 23rd be achieved.
  • Such holding devices may e.g. firmly be connected to the bottom of the formwork and have studs, which engage in the further openings 25a and 25b. So is the production of a consistent distance From guaranteed. This measure helps to ensure that a possibly occurring edge offset of the underside U ' can be reliably compensated.
  • the means to compensate The edge offset can be from a tapered Bolt 26 and one with a corresponding conical Recessed counterpart 27 exist.
  • the counterpart 27 is preferably inserted into the cylindrical hole 25 a.
  • the bolt 26 is through an opposite slot 25 b plugged and driven into the counterpart 27.
  • An approximately existing one Offset of the undersides U of the adjacent concrete formwork panels 23 is compensated.
  • Another (not shown here) means for balancing the Kantenversatzes consists of a metal rod, which by the further breakthroughs 25a and 25b is inserted.
  • the metal bar is provided with two continuous threaded holes for receiving adjusting screws.
  • the adjusting screws reach through the threaded holes. They are supported on the top of the concrete shuttering panel 23 in the area between the side edge and the marginal support member 23rd By means of their adjustment screws can on top of the concrete formwork panel 23 pressure be exercised, so that their Edge area to compensate for an edge offset slightly is bent down.
  • An end face 28 of the concrete formwork panels 23 may further have at least one second recess 29.
  • the second Recess 29 may be formed in the manner of a groove and extend over the entire length of the end face 28.
  • a frontal upper edge has an inclined surface S. she Sloping surface S allows the inflow of site concrete in one formed between the adjacent concrete ceiling elements Gap.
  • mating elements 30 When mounting the concrete ceiling elements, e.g. concrete manufactured mating elements 30 in the / the second recess / s 29 are inserted.
  • the mating elements 30 can also e.g. by means of an adhesive in the second recess (s) 29 be attached to one of the concrete ceiling elements. That makes it easier the assembly.
  • the provision of the mating elements 30th also contributes to an offset of the lower surfaces U ' to avoid the adjacent concrete ceiling elements.
  • the second recesses 29 and the fitting elements 30 are preferably on the end faces 28 of the concrete ceiling elements be provided, which is not parallel to the support elements 22nd run. With regard to the formation of a distance of a located near the bottom U of the concrete ceiling elements Surface elements of the recesses 29 is on the training the distance from the further openings 25a and 25b directed.
  • the mating elements 30 can of course also be made in other geometries. You can in cross section also rectangular, square or triangular be. In the case of the shown in Fig. 11 in cross section triangular formation of the fitting element 30, it is also possible the second recess 29 in such a way that the long Side of the triangle near the top of the concrete formwork panel 23 arranged and the apex of the triangle to Bottom U is turned.
  • the reverse arrangement of the in the second recess 29 inserted fitting member 30 may also be advantageous for static reasons.
  • Fig. 14 shows a plan view of a section of another Concrete ceiling element.
  • the carrier elements 22 point here in opposite directions vertically extending Grooves 31 on.
  • the grooves 31 serve to receive shear plates 32.
  • the thrust plates 32 are before pouring the site-concrete inserted in the grooves 31.
  • Fig. 15 shows such a Thrust plate 32, with holes 33 for the passage of Place concrete is provided.
  • the grooves 31 may be provided in projections 34.
  • the Projections 34 do not necessarily have grooves 31.
  • the projections 34 form similar to the thrust plates 32nd with the place concrete a toothing, which shear forces receives.
  • a concrete ceiling elements constructed using such prepared concrete pavement can advantageously be used without the provision of a ring anchor.
  • FIGS. 16a to f show embodiments of concrete carrier elements B.
  • the Arm istsgerüst A has between the Upper chord 8 and the lower chord 9 one arranged in parallel Diagonals 10 formed strand.
  • the parallel Diagonal 10 are with each other with stiffening struts 35 connected.
  • the embodiments shown differ in the Filling with concrete, which takes the form of a circular signature has been identified.
  • the respective choice of the shown Embodiment depends on the required bending stiffness of the concrete ceiling element.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Panels For Use In Building Construction (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Claims (21)

  1. Elément de recouvrement en béton pour lequel la plupart des éléments porteurs (B, 22) disposés en parallèle et fabriqués avec des ossatures armées (A) en béton coulé sont coulés dans un panneau de coffrage à béton (23) tels que
    des ouvertures (24, 25a, 25b) prévues dans les éléments porteurs (B, 22) soient libres,
    au moins les éléments porteurs (22) côté bord présentent d'autres ouvertures (25a, 25b) destinées à insérer un dispositif pour la compensation d'un désalignement et
    les autres ouvertures (25a, 25b) soient disposées respectivement à intervalle (Ab) égal d'une face inférieure (U) du panneau de coffrage à béton (23),
    caractérisé en ce que
    des creusements (18) à intervalles réguliers pour placer une grille d'armature (21) sont prévus sur la face supérieure (O) des éléments porteurs (B, 22).
  2. Elément de recouvrement en béton selon la revendication 1, des rainures verticales (31) opposées les unes aux autres étant prévues dans les parois latérales des éléments porteurs (B, 22) pour l'introduction de tôles de poussées (32).
  3. Elément de recouvrement en béton selon l'une des revendications 1 ou 2, les parois latérales des éléments porteurs (B, 22) présentant des éléments saillants (34) pour la formation d'une denture de poussée avec le béton coulé sur place.
  4. Elément de recouvrement en béton selon l'une des revendications précédentes, une face (28) du panneau de coffrage à béton (23) présentant au moins une entaille (29), de préférence de type rainure périphérique, pour la réception d'éléments d'ajustage (30).
  5. Elément de recouvrement en béton selon l'une des revendications précédentes, des éléments d'ajustage (30) étant collés dans l'entaille (29).
  6. Elément de recouvrement en béton selon l'une des revendications précédentes, les arêtes supérieures du panneau de coffrage à béton (23) étant biseautées.
  7. Procédé pour la fabrication d'un élément de recouvrement en béton selon l'une des revendications précédentes, pour lequel un panneau de coffrage à béton (23) est muni d'éléments porteurs (B, 22) résistants à la flexion, avec les opérations suivantes destinées à la fabrication d'un élément porteur:
    a) Fabrication d'une ossature armée (A), pour laquelle au moins une membrure supérieure (8) et au moins une membrure inférieure (9) sont reliées avec des diagonales (10) telles que des surfaces de pénétration (11) soient limitées par les diagonales (10),
    b) Introduction de l'ossature armée (A) dans un moule,
    caractérisé en ce que
    des saillies sont prévues au fond et au moins sur une des parois longitudinales du moule pour la formation de rainures et/ou d'entailles sur l'élément porteur
    et caractérisé par les autres opérations suivantes:
    c) entrée de noyaux de moules (6) par les surfaces de pénétration (11),
    d) coulée de béton (15) dans le moule,
    e) retrait des noyaux de moule (11) et démoulage des éléments porteurs (B, 22),
    f) insertion des éléments porteurs (B, 22) fabriqués selon les opérations mentionnées du point a) au point e) dans un coffrage et
    g) début de coulée du panneau de coffrage à béton (23).
  8. Procédé selon la revendication 7, des dispositifs (16) pour l'ajustage de l'ossature armée (A) sont introduits dans le moule avant l'opération mentionnée au point b).
  9. Procédé selon l'une des revendications 7 ou 8, des entretoises sont placées sur l'ossature armée (A) avant l'opération mentionnée au point b).
  10. Procédé selon l'une des revendications 7 à 9, l'ossature armée (A) est maintenue suspendue au-dessus de la membrure inférieure (9) aux prolongements en saillie (12) des diagonales (10) du moule.
  11. Procédé selon l'une des revendications 7 à 10, l'ossature armée (A) est insérée dans le moule telle que les noyaux de moule (6) puissent être déplacés à partir d'une paroi longitudinale (1, 2) du moule par les surface de pénétration (11).
  12. Procédé selon l'une des revendications 7 à 11, l'ossature armée (A) est insérée dans le moule telle que les noyaux de moule (6) puissent être déplacés à partir du fond (5) ou d'un orifice du moule par les surfaces de pénétration (11).
  13. Procédé selon la revendication 12, les prolongements en saillie (12) au-dessus de la membrure inférieure (9) des diagonales (10), état inséré, sont immergés dans un doublage (14) adjacent à une deuxième paroi longitudinale (2) du moule.
  14. Procédé selon l'une des revendications 7 à 13, le fond (5) ou une paroi longitudinale (2) du moule est constitué en une grille et l'ossature armée (A) est placée dans le moule telle que les prolongements en saillie (12) au-dessus de la membrure inférieure (9) des diagonales (10) pénètrent dans la grille.
  15. Procédé selon l'une des revendications 7 à 14, le moule pour la compression est logé sur un vibrateur et le béton (15) est comprimé après coulée dans le moule.
  16. Procédé selon l'une des revendications 7 à 15, du béton fluidifié autocomprimant est utilisé comme béton (15).
  17. Procédé selon l'une des revendications 7 à 16, le démoulage est effectué après compression tant que le béton est à consistance de terre humide.
  18. Procédé selon l'une des revendications 7 à 17, au moins une paroi latérale et les parois transversales (1, 3, 4) du moule sont déplacées pour le démoulage avec les noyaux de moule (6) par rapport au fond (5) du moule.
  19. Procédé selon l'une des revendications 7 à 18, les éléments porteurs (B, 22) démoulés, de préférence pour une durée de 8 à 24 heures, sont chauffés à une température comprise entre 30 et 40°C.
  20. Procédé selon l'une des revendications 7 à 19, le coffrage présente une partie en saillie, de préférence périphérique pour la formation d'une entaille (29), de préférence de type rainure périphérique, sur la face (28) du panneau de coffrage à béton (23).
  21. Procédé selon l'une des revendications 7 à 20, au moins les éléments porteurs (22) disposés au bord et parallèlement à l'arête du panneau de coffrage à béton (23) présentent une autre ouverture (25a, 25 b) pour l'insertion d'un dispositif destiné à la compensation d'un désalignement, l'élément porteur (22) lors de la fabrication du panneau de coffrage à béton (23) étant maintenu ou soutenu dans le coffrage de telle façon que les autres ouvertures (25a, 25b) présentent respectivement le même intervalle (Ab) par rapport au fond du coffrage.
EP01109123A 2000-04-12 2001-04-12 Procédé pour la fabrication d'un élément de plancher en béton et élément de plancher en béton Expired - Lifetime EP1146180B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10018212A DE10018212B4 (de) 2000-04-12 2000-04-12 Verfahren zur Herstellung eines Beton-Deckenelements mit biegesteifen Beton- Trägerelementen, Deckenelement und Vorrichtung zur Durchführung des Verfahrens
DE10018212 2000-04-12

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EP1146180A1 EP1146180A1 (fr) 2001-10-17
EP1146180B1 true EP1146180B1 (fr) 2005-11-30

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EP (1) EP1146180B1 (fr)
AT (1) ATE311503T1 (fr)
DE (2) DE10018212B4 (fr)

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CN100370097C (zh) * 2002-04-30 2008-02-20 邱则有 一种钢筋砼用立体承力模壳
CN100439617C (zh) * 2002-04-30 2008-12-03 邱则有 一种钢筋砼立体承力结构楼盖
CN1782258B (zh) * 2002-04-30 2010-04-21 邱则有 一种钢筋砼立体承力结构楼盖
CN100412294C (zh) * 2002-04-30 2008-08-20 邱则有 一种钢筋砼用立体承力模壳
CN100408775C (zh) * 2002-04-30 2008-08-06 邱则有 一种钢筋砼立体承力结构楼盖
CN100408782C (zh) * 2002-04-30 2008-08-06 邱则有 一种钢筋砼用立体承力模壳
CN101240571B (zh) * 2002-04-30 2012-11-28 湖南邱则有专利战略策划有限公司 一种钢筋砼用立体承力模壳
CN100412295C (zh) * 2002-04-30 2008-08-20 邱则有 一种钢筋砼用立体承力模壳
CN100368644C (zh) * 2002-04-30 2008-02-13 邱则有 一种钢筋砼用立体承力模壳
CN100547192C (zh) * 2002-04-30 2009-10-07 邱则有 一种钢筋砼立体承力结构楼盖
CN100408783C (zh) * 2002-04-30 2008-08-06 邱则有 一种钢筋砼用立体承力模壳
CN100408778C (zh) * 2002-04-30 2008-08-06 邱则有 一种钢筋砼立体承力结构楼盖
CN100408780C (zh) * 2002-04-30 2008-08-06 邱则有 一种钢筋砼用立体承力模壳
CN100501079C (zh) * 2002-04-30 2009-06-17 邱则有 一种钢筋砼用立体承力模壳
CN1782253B (zh) * 2002-04-30 2010-04-14 邱则有 一种钢筋砼立体承力结构楼盖
CN1982604B (zh) * 2002-04-30 2010-11-03 邱则有 一种钢筋砼立体承力结构楼盖
CN100408777C (zh) * 2002-04-30 2008-08-06 邱则有 一种钢筋砼立体承力结构楼盖
CN100535306C (zh) * 2003-05-20 2009-09-02 邱则有 一种钢筋砼空心板
EP1795666A1 (fr) * 2005-12-12 2007-06-13 Bartoli N.V. Elément de poutre, système de construction et procédé
RU2008151996A (ru) 2006-05-30 2010-07-10 Технише Универзитет Вена (At) Плоскостная бетонная несущая конструкция и способ ее изготовления
DE102007040263B3 (de) * 2007-08-24 2008-11-13 Cowatec Ag Verfahren und Vorrichtung zur Herstellung eines Beton-Deckenelements
DE102009028226A1 (de) 2009-08-04 2011-02-17 Vacu Team Gmbh Betonelement und Verfahren zur Herstellung einer Betondecke
EP2299020A1 (fr) * 2009-09-15 2011-03-23 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Dalle creuse pour une résistance améliorée au feu
EP2478165A1 (fr) * 2009-09-15 2012-07-25 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Dalle à c ur creux avec résistance au feu améliorée

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Publication number Publication date
DE10018212A1 (de) 2001-10-25
ATE311503T1 (de) 2005-12-15
DE50108213D1 (de) 2006-01-05
EP1146180A1 (fr) 2001-10-17
DE10018212B4 (de) 2007-11-22

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