EP0516606B1 - Vorgefertigte verlorene Schalung für Stahlbeton-Treppen - Google Patents

Vorgefertigte verlorene Schalung für Stahlbeton-Treppen Download PDF

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Publication number
EP0516606B1
EP0516606B1 EP92870079A EP92870079A EP0516606B1 EP 0516606 B1 EP0516606 B1 EP 0516606B1 EP 92870079 A EP92870079 A EP 92870079A EP 92870079 A EP92870079 A EP 92870079A EP 0516606 B1 EP0516606 B1 EP 0516606B1
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EP
European Patent Office
Prior art keywords
modules
formwork
riser
concrete
parts
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.)
Expired - Lifetime
Application number
EP92870079A
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English (en)
French (fr)
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EP0516606A1 (de
Inventor
Bernard Gossuin
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Individual
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Individual
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Priority to AT9292870079T priority Critical patent/ATE105042T1/de
Publication of EP0516606A1 publication Critical patent/EP0516606A1/de
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Publication of EP0516606B1 publication Critical patent/EP0516606B1/de
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/116—Treads of stone, concrete or like material or with an upper layer of stone or stone like material, e.g. ceramics, concrete; of glass or with an upper layer of glass
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/1041—Treads having means to adjust the height, the depth and/or the slope of the stair steps
    • 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
    • B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
    • B28B7/225—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units for making stairs or stair units comprising more than one step
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
    • E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
    • E04F2011/021—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass
    • E04F2011/0212—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete
    • E04F2011/0214—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete cast in situ

Definitions

  • the invention solves these problems by making formwork lost specifically for stairs, where existing formwork, not specific to stairs, cannot be used.
  • materials suitable for stair surfaces are adapted to fulfill the formwork function.
  • the invention provides a solution to the shaping of these surfaces by making prefabrication possible, thanks to the fact that it allows a reduced number of elements to satisfy the infinite number of dimensions required.
  • Prefabrication is used in the construction of stairs, but for operations all different from those envisaged in the invention.
  • it is a question of prefabricating the formwork, and not the stairs themselves, and it is a question of formwork for reinforced concrete staircases, that is to say staircases in which not only intervenes concrete, but especially in which this concrete is the element ensuring the structure, monolithic and self-supporting.
  • the hollow steps are filled with concrete. But it is not not the formwork of a staircase: the concrete does not provide the structure, and the staircase obtained, unlike that aimed by the invention, is not monolithic: the steps are separated by voids allowing spaces to communicate lower and upper.
  • the invention proposed here applies to reinforced concrete stairs, with full body, poured on site in a single movement, so that they are self-supporting by this concrete reinforcement, and so that their appearance is that of traditional masonry or concrete staircases: not only allow to climb, but also to separate the lower and upper volumes thanks to the presence of risers, separation which offers great advantages: thermal, acoustic insulation, and impossibility of falling objects, dust, cleaning water.
  • the invention divides this formwork into identical elements constituting standardized modules which adapt to any height of staircase. This is done by grouping in each of these modules, for a step, parts of all the different surfaces of formwork necessary: riser, sides, bottom, and even possibly the step surface itself.
  • the invention also allows adaptation to most forms (rotating) with limited and standardizable series of a few different modules. It also allows, in a variant, the adaptability of the same module to different widths of stairs.
  • the prefabricated lost formwork of the invention is characterized in that it is in the form of a set of stackable modules, each bringing together the desired formwork parts corresponding to a step and having a variable nesting depth in the lower module or an attachment to the lower module allowing the variable spacing of the modules, so as to adapt to the desired step height, said modules being made of a material capable of serving as a finishing or suitable finishing support and variable nesting taking place for at least part of the lower perimeter of the modules, part consisting at least of the bottom of the riser which enters the volume determined by the lower module and which remains there taken by the pouring concrete.
  • the riser formwork remaining in place it can serve as a support for the step slab, which can thus be placed before pouring concrete. Placing this slab before pouring the concrete stops the splashes that would damage finished surfaces if concrete were poured in the ordinary sequence. In the invention, this slab can therefore behave like an additional formwork element: a formwork cover.
  • Stackable modules in GRC thickness 1 cm. (GRC: glass reinforced cement). They are provided, in their lower part, with bayonet offset (11) with a height of 2 cm. to allow interlocking of variable depth. This height is sufficient, because the fact of dividing the formwork into portions corresponding to a single step has the consequence that the variation in height which is likely to be requested from a module does not exceed never a step height divided by the number of steps.
  • Vertical buttonholes in tabs (12) allow the modules to be joined together with the necessary height adaptations.
  • Horizontal buttonholes (13) allow an adaptation in width if one wishes to reduce or cancel the offset that occurs at each junction in the bottom surface, or if one has to reduce the footprint of the staircase.
  • the tabs and buttonholes are reinforced with metal embedded in the GRC.
  • the overlapped surfaces are covered, for the sides (19) and for the bottom (18), in the same direction (bottom of the upper module inside the top of the lower module).
  • the fixing tabs with buttonholes can be replaced by vertical screws whose screwing depth, possibly with the help of additional washers and nuts inserted, determines the spacing of the modules and the thickness of the joints .
  • Reinforcements such as those appearing in FIGS. 2 and 3 (21, 31) serving as transverse reinforcements can be integrated into the bottom surface, on the interior side.
  • the longitudinal reinforcement slides from the top after stacking and securing the modules. During the setting time of the concrete, it is necessary to provide a shoring along the center line of the stairs.
  • the step slabs for example in terrazzo or GRC, are laid as the concrete pouring advances, so as to be able to control the correct filling through the immediately upper opening which is still free.
  • These slabs have been provided with latches (14) allowing rapid fixing to the upper (15) and lower (16) supports of the risers. If necessary to avoid the suintage of concrete during casting, the joints are closed with sticky strips. The repointing of the offsets poses no problem thanks to the rigidity of the connection between modules provided by the reinforced concrete.
  • Figure 2 shows a model for a straight staircase
  • Figure 3 a model for a spiral staircase.
  • These models are made of sheet steel. They comprise in the bottom surface reinforcements (21,31) which constitute the integration into the module of the transverse part of the concrete reinforcement, and also serve to maintain a constant spacing of the longitudinal reinforcement.
  • the front part alone may be sufficient for stairs located between walls, if the bottom is not necessary or is otherwise enclosed. This part alone is of sufficient interest. It will be fixed in place of the traditional formwork shaped on site for each riser, formwork which, to allow formwork, must be done according to the exact step height. This is not the case for the finished risers presented here which have a standardized height corresponding to the maximum height likely to be requested. All the lower heights are obtained, according to the principle of fitting the complete modules, by letting the superfluous part (52) of the riser drown in the concrete of the lower step. This is authorized by the absence of formwork.
  • the drawing shows a particular fastening element (51) composed of two parts A and B.
  • Part B is intended to receive a screw to be driven into the lateral support (wall, wall or stringer) and can slide in part A.
  • a screws can be added to block this movement (53).
  • Part A has a section of constant shape and a length sufficient to keep its function if it is shortened by sawing at the same time as the riser. Thus, there is a way, by a simple cut, to adapt the riser to different widths of stairs.
  • the described fastening elements are then used to fix the risers to the side parts of the module which thus becomes removable and adaptable in width .
  • the bottom is provided with the same fixing elements so that it can be shortened in the same way.
  • the riser shown here was made from a dense, laminated white chipboard, 18 mm thick.
  • the nose is made of hardwood.
  • the hidden side carries in the upper position four screws protruding by 2 cm., Or hooks, to ensure solidarity with the concrete.
  • the figure also shows the adjustable lower metal supports (55) for the step panel. These supports will be embedded in the concrete.
  • the upper support which does not have to be necessarily adjustable, consists of the edge of the laminated panel, placed for this purpose slightly lower than the top of the nose.
  • Precast concrete riser Nose with non-slip grooves.
  • the supports (55) seen in FIG. 5 can be added to it.
  • the tiling (71) shown in the drawing must be either pre-assembled on an asbestos-cement plate , or imitated by a one-piece panel, in GRC for example, in which the joints are drawn. Without this technique, concrete must be poured to a height which leaves room for the traditional laying of tiles.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Polyesters Or Polycarbonates (AREA)

Claims (7)

  1. Vorgefertigte verlorene Schaltung, insbesondere für armierte monolithische, an Ort und Stelle gegossene Betontreppen,
    dadurch gekennzeichnet,
    daß sich die Schalung in Gestalt einer Gesamtheit von stapelbaren Modulen darstellt, die jeweils die entsprechend einer Stufe gewünschten Schalungsteile vereinigen und jeweils eine variable Einlaßtiefe (11) in das jeweils untere Modul oder eine Befestigung am unteren Modul bieten, die einen variablen Abstand der Module ermöglicht, um sich der gewünschten Stufenhöhe anzupassen,
    daß die Module in einem Material verwirklicht sind, das für die Endfertigung oder als geeigneter Träger der Endfertigung dienen kann, und
    daß die variable Einlassung für mindestens einen Teil des unteren Umfangs der Module vorgesehen ist, und zwar ein Teil, der mindestens den Unterteil der Steigung bildet, in das von dem unteren Modul bestimmte Volumen eindringt und der dort durch den gegossenen Beton gefangen bleibt.
  2. Vorgefertigte verlorene Schalung nach Anspruch 1,
    dadurch gekennzeichnet,
    daß die vorderen Teile (17) der Module, d.h. die Steigungen, mit Stützen (16, 55) für Platten der Stufe versehen sind, so daß die Platten vor dem Gießen des Betons angelegt werden können, und
    daß die unteren Stützen senkrecht verschiebbar sind, um die Anpassung an die gewünschte Stufenhöhe zu ermöglichen.
  3. Vorgefertigte verlorene Schalung nach Anspruch 1 oder 2 für den Fall, daß die seitlichen Teile der Schalung überflüssig sind,
    dadurch gekennzeichnet,
    daß die Stufen einen vorderen Teil oder Steigungsteil und einen hinteren oder rückwärtigen Teil umfassen und daß diese Teile untereinander durch feste oder bewegliche Bänder oder Klammern miteinander verbunden sind.
  4. Vorgefertigte verlorene Schalung nach Anspruch 1 oder 2, dadurch gekennzeichnet,
    daß die Module nur durch einen vorderen Teil (17, Fig. 5, Fig. 6) gebildet sind,
    daß die Schalung demgemäß eine Gesamtheit der Steigungen gebildet wird, deren variable Einlaß durch eine mehr oder weniger große Einsenkung in den Beton erhalten wird und daß sich an die Gesamtheit gegebenenfalls andere Teile der Schalung in beliebiger Technik anschließen können.
  5. Vorgefertigte verlorene Schalung nach Anspruch 4,
    dadurch gekennzeichnet,
    daß die Steigungen an ihren Enden mit Befestigungseinrichtungen (51) versehen sind, die jeweils aus mindestens zwei Elementen bestehen, von denen das eine (A) länglich und von einer Form mit konstantem Querschnitt ist und mit der Steigung integriert ist, so daß sich ihre Funktion nicht ändert, wenn es gleichzeitig mit dem Ende (56) der Steigung verkürzt wird.
  6. Vorgefertigte verlorene Schalung nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet,
    daß, wenn die Module sich in demontierten Stücken darstellen, die die Steigungen bildenden Stücke an ihren Enden mit Befestigungseinrichtungen (51) versehen sind, die jeweils aus mindestens zwei Elementen bestehen, von denen das eine (A) länglich und mit konstantem Querschnitt ausgebildet ist und mit der Steigung derart integriert ist, daß sich seine Funktion nicht ändert, wenn es gleichzeitig mit dem Ende (56) der Steigung verkürzt wird, und daß die den Boden der Treppe bildenden Teile auch diese Befestigungselemente (25, 35, 45) darstellen.
  7. Vorgefertigte verlorene Schalung nach einem der Ansprüche 1 bis 6, bestimmt für Spindel- oder Wendeltreppen,
    dadurch gekennzeichnet,
    daß die Verbindung zwischen den Oberflächen vor und hinter den Modulen für eine der Seiten durch zur Achse der Treppe zylindrische Teile verwirklicht wird.
EP92870079A 1991-05-28 1992-05-25 Vorgefertigte verlorene Schalung für Stahlbeton-Treppen Expired - Lifetime EP0516606B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT9292870079T ATE105042T1 (de) 1991-05-28 1992-05-25 Vorgefertigte verlorene schalung fuer stahlbeton- treppen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9100510 1991-05-28
BE9100510A BE1004878A5 (fr) 1991-05-28 1991-05-28 Coffrage perdu prefabrique pour escalier en beton arme.

Publications (2)

Publication Number Publication Date
EP0516606A1 EP0516606A1 (de) 1992-12-02
EP0516606B1 true EP0516606B1 (de) 1994-04-27

Family

ID=3885529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92870079A Expired - Lifetime EP0516606B1 (de) 1991-05-28 1992-05-25 Vorgefertigte verlorene Schalung für Stahlbeton-Treppen

Country Status (6)

Country Link
EP (1) EP0516606B1 (de)
AT (1) ATE105042T1 (de)
BE (1) BE1004878A5 (de)
DE (1) DE69200118T2 (de)
DK (1) DK0516606T3 (de)
ES (1) ES2056009T3 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5511347A (en) * 1994-11-07 1996-04-30 Schwarz; Horst G. W. Adjustable sheet metal moulds for steel and precast concrete stairs
BE1009726A6 (fr) * 1995-11-07 1997-07-01 Gossuin Bernard Panneaux de recouvrement de sols tenant lieu de chape ou de carrelage.
WO2000056995A1 (en) * 1999-03-22 2000-09-28 Borloy Matyas Method and form template for constructing a formwork for stairs, especially for cast concrete stair flights
US7171786B2 (en) 2003-12-01 2007-02-06 Tapco International Corporation Window well
DE202009013431U1 (de) 2009-10-05 2010-02-11 Udw-Treppen E.K. Treppenmodulschalung für gewendelte Ortbetontreppen
CN104818808A (zh) * 2015-04-15 2015-08-05 天津大学 一种永久性楼梯钢模板
CN109779169A (zh) * 2019-01-30 2019-05-21 南通科达建材股份有限公司 可拼接式的预制楼梯及其施工方法
CN113263601A (zh) * 2021-06-08 2021-08-17 邢台森城住工科技有限公司 一种预制楼梯模具及预制楼梯
CN116653111B (zh) * 2023-07-07 2023-10-27 江苏启安建设集团有限公司 一种用于钢筋混凝土预制楼梯的浇筑装置及其浇筑工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2071024A5 (de) * 1969-12-16 1971-09-17 Nauvuy Philippe
US3885365A (en) * 1974-06-06 1975-05-27 Joe Warren Cox Self-adjusting stair
DE8610718U1 (de) * 1986-04-18 1986-09-18 Tavernier, Albert, 6701 Dannstadt-Schauernheim Kombi-Bogentreppe

Also Published As

Publication number Publication date
ES2056009T3 (es) 1994-09-01
BE1004878A5 (fr) 1993-02-16
DK0516606T3 (da) 1994-09-26
DE69200118D1 (de) 1994-06-01
DE69200118T2 (de) 1994-11-10
ATE105042T1 (de) 1994-05-15
EP0516606A1 (de) 1992-12-02

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