EP3910129A1 - Verfahren zur herstellung einer dreidimensionalen monoblock-betonstruktur oder eines teils davon und so hergestellte dreidimensionale betonstruktur oder teil davon - Google Patents

Verfahren zur herstellung einer dreidimensionalen monoblock-betonstruktur oder eines teils davon und so hergestellte dreidimensionale betonstruktur oder teil davon Download PDF

Info

Publication number
EP3910129A1
EP3910129A1 EP21168246.3A EP21168246A EP3910129A1 EP 3910129 A1 EP3910129 A1 EP 3910129A1 EP 21168246 A EP21168246 A EP 21168246A EP 3910129 A1 EP3910129 A1 EP 3910129A1
Authority
EP
European Patent Office
Prior art keywords
concrete
mold
dimensional
volume
producing
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.)
Pending
Application number
EP21168246.3A
Other languages
English (en)
French (fr)
Inventor
Christophe Gomis
Bernard Michel
Nicolas VILLEBROD
Benoit TATTEGRAIN
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.)
PBM Groupe SAS
Original Assignee
PBM Groupe SAS
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 PBM Groupe SAS filed Critical PBM Groupe SAS
Publication of EP3910129A1 publication Critical patent/EP3910129A1/de
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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

Definitions

  • the invention relates first of all to a method for the production, in particular in a factory, of structures or parts of three-dimensional monobloc concrete structures, and more particularly, although in a non-limiting manner, of staircases or parts of monobloc staircases. concrete.
  • the invention also relates to the structures or parts of three-dimensional one-piece concrete structures thus obtained and, more specifically, to one-piece concrete stairs or parts of stairs.
  • a mold is placed, defining a central column intended to constitute the barrel.
  • the latter is produced by pouring concrete through the upper end of the mold defining such a central shaft. Then the concrete is poured on the areas of the mold intended to define the steps and risers. The concrete thus deposited is vibrated, then the operator smooths the steps thus made, in particular using a shovel or a trowel, then smooths the concrete not yet solidified with a smoothing machine.
  • the finish must be strong enough to allow repeated passages of users without showing any wear or bursting related to the presence of air bubbles. This explains the need sometimes for two coats of plaster, further increasing the loss of time.
  • the presence of air bubbles is reduced, in particular at the level of the walking platforms, this reduction of air bubbles being able to be optimized, still according to the teachings of this document, by the implementation.
  • the object of the invention is to overcome these drawbacks.
  • the present invention is more oriented towards the production of structures.
  • three-dimensional concrete monoblocks produced in the factory certainly then requiring the displacement of said structure or part of a structure on the site with a view to its final assembly or its final assembly or erection.
  • the method according to the invention for producing a structure or part of a three-dimensional monobloc structure in concrete, provided with at least one horizontal flat surface basically consists in producing said structure "upside down", that is, that is to say, to reverse the erection of the mold with respect to the method described in the document FR 3081 896 .
  • This method therefore also implements a closed mold composed of a lower mold and an upper mold or cover defining between them a volume intended to be filled with concrete.
  • the structure, and typically the staircase is made upside down, without the use of any mortar, since also, as mentioned in the description of the prior art, the air bubbles resulting from the pouring concrete are found enclosed at the level of the upper face of the mold, therefore in this case, due to the realization of said structure and in particular of the staircase upside down, at the level of the lower face of said staircase once this one erected.
  • This avoids observing defects at the level of the functional surface of the staircase, that is to say of the tread plate and, moreover, due to the injection of concrete through the lowest point of the staircase. volume defined by the mold, said air bubbles, where appropriate formed, tend to form at the upper level of said mold and therefore, once again, at the level of the non-functional lower face of the three-dimensional structure, in particular of the staircase .
  • a vent is positioned at the highest point of the volume defined by the two molds, respectively lower and upper.
  • the injected concrete not only fills the entirety of said volume, but also overflows from said volume in its upper part, that is to say higher than the three-dimensional structure to be produced. This ensures complete filling of the mold.
  • the Concrete core resulting from this overflow, and obviously unnecessary, is broken after the concrete sets solid during demolding.
  • the assembly is inclined, typically at an angle of between 3 and 25 degrees relative to the horizontal, during the operation of pouring the concrete. Because of this low inclination of the mold thus formed during the concrete pouring operation, air bubbles which naturally tend to be trapped at the horizontal faces, have not de facto more horizontal faces come to be imprisoned, and are liable to escape at the level of the creepage line arising from the inclination of said mold.
  • At least part of the surfaces of said mold intended to define the non-vertical faces of the structure is provided with a draft, again typically inclined from 3 to 25 degrees relative to the structure. horizontally, thus making it possible to avoid any horizontal face when pouring concrete, thus promoting the evacuation of any air bubbles formed.
  • the lower face no longer has a rack-and-pinion section with parallel faces as frequently observed, but a lower face having a plane inclined with respect to the 'horizontal.
  • the upper face of the mold is no longer in the form of a rack, as in the previous case, but has a continuous curvature, which will become the underside of the staircase, this continuous curvature thus avoiding any horizontal faces liable to allow the imprisonment of air bubbles.
  • the invention also relates to three-dimensional monoblock structures and concrete monobloc stairs obtained by implementing this method.
  • the invention is aimed at the production of any three-dimensional concrete structure, and that only the shape of the molds is liable to vary in order to produce said structure, the general principle described below remaining strictly identical.
  • two molds are used, respectively a lower mold (2) shown in the drawings. figures 1 and 2 , and an upper mold, in this case consisting of a lower cover (3) and an upper cover (4) shown within the figures 3 and 4 .
  • the molds are erected vertically.
  • the latter has a succession of vertical (5) and horizontal (6) parts, said horizontal parts (6) being intended to define the tread plates (7) of the staircase (1) resulting from the method of the invention , being recalled that according to said process, the staircase is molded in an inverted or inverted position, as can be observed in particular on the figures 7 and 8 .
  • this mold is made of steel and corresponds to the entire flight of stairs that one wishes to produce.
  • the figures 3 and 4 respectively illustrate the lower part or lower cover (3) of the upper mold and the upper part or upper cover (4) of the upper mold, intended, once in place and fixed on the lower mold (2) described in relation to the figures 1 and 2 , to define a volume, into which a self-compacting concrete will be injected.
  • said lower (3) and upper (4) covers also consist of a succession of horizontal (8) and vertical (9) parts, so that the lower face, also called underside (13 ) of the staircase resulting from the method of the invention is in the form of a rack, like the one shown in figure 5 .
  • this upper mold will define, in fact, the lower face of the staircase. In the specific case, this lower part therefore has a rack.
  • this lower surface (13) of the staircase could be smooth and continuous, so that the shape of the upper cover would be adapted accordingly.
  • This assembly defines a closed volume, into which the self-compacting concrete is injected. According to an essential characteristic of the invention, this injection is carried out at the level of the base of said volume.
  • the injection point (10) of the concrete within this volume said injection point in this case being made within the lower vertical part (9) of the upper mold.
  • This concrete with a much more liquid consistency than the traditional concretes used for stairs, is therefore injected from the lower end of the mold in an upward movement, in particular by means of a suitable pump, and more particularly of a peristaltic pump.
  • Self-compacting concrete therefore does not need to be vibrated, an operation usually very physical and painful, and has a greatly reduced number of air bubbles, making it possible to obtain a finished product that is smoother on the surface.
  • the upper end (11) of the mold is provided with a vent (12), allowing the air to escape as the volume defined by the assembly of said molds together, and de facto favoring the elimination of air bubbles proper, one of the essential pitfalls that the present invention aims to avoid.
  • the mold is provided with undercuts, typically inclined from 3 to 25 degrees relative to the horizontal.
  • the implementation of such undercuts, resulting in inclined sides (15) at the level of the underside (13) of the staircase, aims to optimize the objective sought by the present invention, namely to avoid the formation of air bubbles that can get trapped. Indeed, the presence of these spoils tends, due to the mode of injection of the concrete from the lower base of the volume defined by the two molds, to drive out the concrete as and when at each of the steps in direction of the upper step and, consequently, to expel air bubbles.
  • the primary objective is to avoid the formation of air bubbles between the upper mold and the concrete.
  • said upper mold is given a smooth and continuous shape, making it possible to produce a staircase as illustrated in the figures. figures 7 and 8 , respectively with and without central shaft. It is observed that the lower face of the staircase, since it is also represented in the inverted or inverted position, no longer has a rack, but a continuous surface. Because of this continuity of the upper mold, there is therefore no longer any horizontal or substantially horizontal surface capable of allowing the trapping of air bubbles.
  • this self-compacting concrete belongs to class SF2 (spreading between 660mm and 750mm), or to class SF3 (spreading between 760mm and 850mm), these two classes being defined by standard NF EN 206, the spread being a test described by standard NF EN 12350-8.
  • the method of the invention results in the possibility of producing a three-dimensional concrete structure, and in particular a one-piece concrete staircase, making it possible to dispense with air bubbles at the level of the tread plates, that is to say of the truly functional area of the staircase, without requiring prior treatment of the molds, except for oiling the internal face of the molds in order to promote demolding (this demolding oil may consist of a solvent (for example sold under the reference rig wax E-31), a synthetic oil (for example marketed under the reference Chryso Dem Oléo 64), a vegetable or vegetable-based oil (for example marketed under the reference iscus Décobio S33)) or the implementation of any additional mortar, thus making it possible to facilitate the production process and to reduce its manufacturing costs.
  • this demolding oil may consist of a solvent (for example sold under the reference patented wax E-31), a synthetic oil (for example marketed under the reference Chryso Dem Oléo 64), a vegetable or vegetable-based oil (for example marketed under the reference

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Steps, Ramps, And Handrails (AREA)
EP21168246.3A 2020-05-15 2021-04-14 Verfahren zur herstellung einer dreidimensionalen monoblock-betonstruktur oder eines teils davon und so hergestellte dreidimensionale betonstruktur oder teil davon Pending EP3910129A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2004837A FR3110188B1 (fr) 2020-05-15 2020-05-15 Procede pour la realisation d’une structure ou d’une partie de structure monobloc tridimensionnelle en beton et structure ou partie de structure tridimensionnelle en beton ainsi obtenue

Publications (1)

Publication Number Publication Date
EP3910129A1 true EP3910129A1 (de) 2021-11-17

Family

ID=71894991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21168246.3A Pending EP3910129A1 (de) 2020-05-15 2021-04-14 Verfahren zur herstellung einer dreidimensionalen monoblock-betonstruktur oder eines teils davon und so hergestellte dreidimensionale betonstruktur oder teil davon

Country Status (2)

Country Link
EP (1) EP3910129A1 (de)
FR (1) FR3110188B1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289439A (en) * 1939-06-12 1942-07-14 Walter H Carlson Method of precasting concrete stair structures
EP0085366A1 (de) * 1982-01-26 1983-08-10 Kesting, Lorenz Verfahren und Vorrichtung zum Fertigen von Raumzellen aus erstarrendem Baustoff
EP0628389A1 (de) * 1993-06-09 1994-12-14 Haitsma Beton B.V. Verfahren und Vorrichtung zur Herstellung von Bauteilen aus Beton
EP0941825A2 (de) * 1998-03-11 1999-09-15 Kevin Geraghty Vorrichtung zum Herstellen einer Treppe
DE102010018348A1 (de) * 2010-04-27 2011-10-27 Nguyen Viet Tue Verfahren zur Herstellung einer Faltwerktreppe aus Faserbeton
CN206170284U (zh) * 2016-11-08 2017-05-17 江苏金贸科技发展有限公司 带有夹板的预制楼梯模具
FR3081896A1 (fr) 2018-06-04 2019-12-06 Pbm Groupe Procede pour la realisation d'escaliers en beton et escalier obtenu par ce procede

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289439A (en) * 1939-06-12 1942-07-14 Walter H Carlson Method of precasting concrete stair structures
EP0085366A1 (de) * 1982-01-26 1983-08-10 Kesting, Lorenz Verfahren und Vorrichtung zum Fertigen von Raumzellen aus erstarrendem Baustoff
EP0628389A1 (de) * 1993-06-09 1994-12-14 Haitsma Beton B.V. Verfahren und Vorrichtung zur Herstellung von Bauteilen aus Beton
EP0941825A2 (de) * 1998-03-11 1999-09-15 Kevin Geraghty Vorrichtung zum Herstellen einer Treppe
DE102010018348A1 (de) * 2010-04-27 2011-10-27 Nguyen Viet Tue Verfahren zur Herstellung einer Faltwerktreppe aus Faserbeton
CN206170284U (zh) * 2016-11-08 2017-05-17 江苏金贸科技发展有限公司 带有夹板的预制楼梯模具
FR3081896A1 (fr) 2018-06-04 2019-12-06 Pbm Groupe Procede pour la realisation d'escaliers en beton et escalier obtenu par ce procede

Also Published As

Publication number Publication date
FR3110188A1 (fr) 2021-11-19
FR3110188B1 (fr) 2022-04-29

Similar Documents

Publication Publication Date Title
EP3910129A1 (de) Verfahren zur herstellung einer dreidimensionalen monoblock-betonstruktur oder eines teils davon und so hergestellte dreidimensionale betonstruktur oder teil davon
EP2402531A2 (de) Vorgefertige Betontreppe mit modularer Treppenwange
EP3871849B1 (de) Maschine und verfahren zur herstellung einer platte, die für die erstellung einer zwischenwand oder eines bodens bestimmt ist
EP3578730B1 (de) Herstellungsverfahren von betontreppen, und mit diesem verfahren erzeugte betontreppen
EP0028558B1 (de) Verfahren zum Verbessern des Gleitwiderstandes von einer Baukonstruktion und ihre Fundierung
EP3395541B1 (de) Herstellungsverfahren mindestens einer wand eines fertigbauelements mit verkleidungsanordnung
EP1420130A1 (de) Profilierte Randabdeckung für Schwimmbecken
FR2608496A1 (fr) Procede de realisation d'un mur ou portion d'un mur en pierres apparentes ou materiaux analogues, et mur ainsi realise
FR3069798A1 (fr) Procede de fabrication d'au moins une paroi d'un element de construction prefabrique a parement matrice et installation associee
EP2069583B1 (de) Aus einem Bauelement und einem Maurerwerkzeug bestehende Anordnung
FR3099194A1 (fr) Procédé, dispositif et installation de fabrication d’un élément de parement et élément de parement ainsi obtenu
FR2863637A1 (fr) Dispositif destine au soutien d'un coffrage pour la realisation de planchers
FR2835272A1 (fr) Dispositif de mur isolant et procede pour sa fabrication
FR3105274A3 (fr) Procédé de formation d'une couche de construction dotée d'un passage
EP1292746B1 (de) Herstellungsverfahren eines wasserbeckens, insbesondere eines schwimmbeckens
FR2886959A3 (fr) Dispositif d'etaiement et procedes de mise en place et de retrait d'un tel dispositif
FR3115550A1 (fr) Gabarit démontable servant de coffrage et permettant la réalisation d’une chape de mortier, d’un revêtement, d’une dalle, d’un carreau ou d’un ensemble de carreaux de béton sur un sol de niveau ou un sol qui n’est pas de niveau.
JP4249098B2 (ja) Ｃｆｔ柱のコンクリート圧入充填方法
FR2699582A1 (fr) Piscines modulaires intégrales.
EP0282553A1 (de) Verfahren zum herstellen von gegenständen aus armiertem beton
EP3486405A1 (de) Becken und sein herstellungsverfahren
EP4081691A1 (de) Platten zur herstellung einer wand und verfahren zur herstellung solcher platten
OA12693A (fr) Procédé de construction utilisant les blocs de béton moulés sous la forme de H ou 2H en guise de coffrage perdu pour d'adobe.
JP2005329689A (ja) 土留め用コンクリートブロック型枠及びその型枠により成形した土留め用コンクリートブロック
FR2732393A1 (fr) Procede de calage, au mortier, d'au moins un objet par rapport a un support

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

B565 Issuance of search results under rule 164(2) epc

Effective date: 20211005

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20211125

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230527