EP0005117A1 - Herstellungsverfahren für Spielplätze und sich daraus ergebende Erzeugnisse - Google Patents

Herstellungsverfahren für Spielplätze und sich daraus ergebende Erzeugnisse Download PDF

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Publication number
EP0005117A1
EP0005117A1 EP79400252A EP79400252A EP0005117A1 EP 0005117 A1 EP0005117 A1 EP 0005117A1 EP 79400252 A EP79400252 A EP 79400252A EP 79400252 A EP79400252 A EP 79400252A EP 0005117 A1 EP0005117 A1 EP 0005117A1
Authority
EP
European Patent Office
Prior art keywords
slab
formwork
thickness
plates
concrete
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Withdrawn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
EP79400252A
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English (en)
French (fr)
Inventor
Armand Moreau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0005117A1 publication Critical patent/EP0005117A1/de
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs

Definitions

  • the present invention relates to a method of building a hard tennis court.
  • the construction method according to the invention makes it possible to avoid these drawbacks. In it, it is indeed possible to pour on site a thin concrete slab a few centimeters from the ground, while allowing to recover part of the support means of said slab after drying.
  • object of the invention is to sink a number of reinforced concrete sills or not arranged at regular intervals along the greatest width of the ground, the upper face of said sills being perfectly leveled. Transversely to these sills, are stretched at determined intervals steel ropes clamping the upper faces thereof. These ropes are housed, at the passage of each sill, in a portion of tube, which will then be embedded in the thickness of the slab allowing to recover the said ropes after drying of the slab. On this rope frame are placed wooden or agglomerated sheets of sufficient thickness to avoid any deformation of flatness during the pouring and drying of the slab.
  • the process for constructing thin concrete slabs for the production of platforms located a few centimeters above the ground, and more particularly of platforms used for the practice of sports, such as tennis, is characterized in what it consists of maintaining a non-deformable formwork plane at the desired distance from the ground by means of recoverable supports after the casting and drying of the platform and simultaneously making the expansion joints necessary for the good performance of said platform -form using removable means, which means make it possible to draw the vibrating ruler of the whole of the platform,
  • the means of supporting the the formwork plane at a certain distance from the ground is a frame of parallel steel ropes stretched transversely to reinforced or unreinforced concrete beams, arranged parallel on the ground in the direction of the width of the structure, which ropes / moored at each end to piles driven into the ground outside the structure, clamping their tension on the upper face of the stringers.
  • the cables pass directly above each sill portion a portion of tube, which is embedded in the concrete slab during the casting of the slab, leaving the possibility of sliding of the rope for its removal after casting.
  • the non-deformable formwork plan is made up of wooden or agglomerated sheets of sufficient thickness to avoid any deformation of flatness during the casting and drying of the platform, which wooden plates are placed on the weft of the ropes of steel.
  • Each plate constituting the formwork plane rests by its longitudinal edges on wooden battens placed on beams and in the direction thereof between the tube elements, the thickness of said battens corresponding to the diameter of the rope plus the tube thickness.
  • Each plate constituting the formwork plane is made up in the width direction, of two lateral bands and of a central band, which bands rest on the frame of the steel ropes, which lateral bands are fixed integrally with the wooden battens placed on the sills and in the direction thereof between the tube elements, which central strip / width less than the spacing of the lonqrines, has its contiguous edges with the side bands in clearance so as to facilitate its fall into the void area located under the slab after the removal of the ropes for recovery.
  • the plates constituting the formwork plane have, uniformly distributed, frustoconical hollow dowels - with cylindrical base provided with a collar implanted in the thickness of the plates, large base down, the height of the conical part corresponding to l he thickness of the slab, which pegs, embedded in the concrete, allow the evacuation of rainwater towards the vacuum zone existing under the slab.
  • the recoverable plates constituting the formwork plan comprise, uniformly distributed, solid frustoconical dowels, being implanted in the thickness of the plate and held by nut, in order to produce as many molds as possible for the evacuation of rainwater. towards the existing vacuum zone under the slab,
  • Rainwater is evacuated by hollow frustoconical dowels glued at regular intervals on a sheet of waterproof felt placed on the formwork plates before pouring the slab.
  • the slab is squared by lines of orthogonal expansion joints, the spacing of which corresponds to the length and to a multiple of the width of the formwork plates, the width of which expansion joints are determined by the thickness of flat bars arranged on the field. and held at their intersection by cruciform supports allowing their removal after use, the edge of which flat irons corresponding to the planned upper level of the pouring slab thus constituting m reference plane for the drawing with the vibrating rule of the whole of the slab after its casting.
  • Notches are provided, arranged at regular intervals along the length of the reinforced or unreinforced concrete sills, in which are received steel ropes constituting a frame and serving to support the formwork plane at a distance from the ground, said notches being made of so as to be punched in coincidence with each other, and to allow both easy passage and removal of the ropes.
  • the notches on the sills have a V shape with a rounded base
  • the sheet is a light sheet of the strip type, said sheet being embedded in the assembly during the demolding of the concrete slab.
  • the sheet retains the formwork panels, and provision is made for the installation of nails for fixing said sheet to the beams.
  • the straps are stapled to the panels.
  • the straps when the panels are brought together, have a recess
  • sills 1 of length corresponding to the width of the court, spaced about seventy five centimeters, these sills being made of reinforced concrete or not, depending the nature of the land; their upper face must be perfectly level, so as to constitute a reference plane.
  • steel cables 2 are placed at fixed intervals, each end of the cable being moored to a pile 3 driven into the ground outside the structure; directly above each sill, the rope 2 passes through a portion of tube 4 whose length is less than the width of the sill.
  • the width of the expansion joints is obtained by placing, before casting, flat bars 7 placed on the field, the upper edge of these lying at the level provided for the upper face of the slab, These flat irons are held in place by means of sup - Phillips ports 8 arranged at each intersection of expansion joints.
  • the upper edge of the flat irons 7 makes it possible to pull the casting platform with the vibrating rule, these flat irons then being removed after drying of the platform.
  • a certain quantity of hollow frustoconical dowels 9 with cylindrical base provided with a collar implanted in holes provided for this purpose in the panels 5.
  • These dowels made of plastic for example, are arranged large base downward, to allow the evacuation of water to the existing vacuum zone under the platform, without risk of obstruction which could be caused by sand or gravel.
  • the contiguous edges of the pan nea flow with the bands 5a and 5b are inclined so as to form an undercut avoiding blocking therewith; during the implementation of the formwork before pouring concrete, the joints are lined with a strip 10, of triangular section, in foam or in any other similar material, the lateral strips 5a and 5b and the battens 6 are fixed on the side rails using steel spikes.
  • a mechanical connection can be provided between the panels, in order to facilitate their extraction after their fall between the stringers after removal of the ropes.
  • This connection can be, for example, hooks hitching onto legs provided with holes, each panel then being equipped with hooks at one end, and legs at the other end.
  • FIG. 11 a section of sill 1 has been illustrated, in reinforced or unreinforced concrete, provided with notches 14 formed at regular intervals. These intervals may represent for example, by way of nonlimiting indication, approximately 50 cm.
  • the notches 14 are made when the concrete sill 1 is poured; various known means can be used for this purpose. A simple way is to use a chamfered ruler positioned in the theoretical axis of the notch; it suffices to proceed with the fitting and removal of the rule. During such an operation, it is absolutely essential to avoid tearing off the edges of the notch.
  • the notches 14 are intended to allow the passage of steel cables which constitute a frame.
  • FIG. 12 illustrates in detail, a notch 14, in particular its V-shape with rounded base.
  • a notch 14 in particular its V-shape with rounded base.
  • a prismatic shape for the notch 14; by way of example, a prismatic shape, however, in the implementation of the invention, it has been found that such a V shape with rounded base gives very good results.
  • the dimensions of such a notch 14 are substantially, both in width and in depth, of the order of 1.5 cm.
  • FIG. 13 illustrates the assembly of the various elements during the implementation of the method of the invention.
  • This sheet 16 remains in the mold; it also has an effect of strengthening the whole
  • the sheet 16 is nailed to the sill 1 using any suitable means, using nails 17, only one of which has been illustrated in the figure.
  • the sheet 16 has the effect of preventing the passage of concrete, since it covers both a sill 1 and a panel 5, and prevents the pouring of lost concrete.
  • the sheet 16 is a light sheet whose dimension can be of the order of 0.33 m x 2.55 m. It is, for example, a strip 0.4 mm thick.
  • FIG 14 there is shown an overview of several beams 1, formwork panels 5 whose width is less than the spacing of the beams 1, the ropes 2 and the sheets 16; the installation sequence is always the same: the cables 2 are inserted, the panels 5 are then placed, the sheets 16 are then passed, _ finally the concrete slab 15 is poured.
  • FIG. 15 there is illustrated in perspective a detail concerning the establishment and removal of the formwork panels; thus, more precisely in this FIG. 15, the two arrows 17 designate the direction of the sills 1, the ropes are designated by 2 and the formwork panels by 5, 18 represent straps which leave a gap between the panels 5.
  • the straps 18 are stapled to the panels 5, they will enable the said panels 5 to be removed.
  • Figures 16 and 17 illustrate schematically ment the relationship between the panels 5 and the straps 18.
  • the process which is the subject of the invention can be used in the production of all horizontal concrete slabs separated from the ground by a crawl space, and more particularly sports fields and tennis courts.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Sewage (AREA)
  • Bridges Or Land Bridges (AREA)
  • Road Paving Structures (AREA)
EP79400252A 1978-04-21 1979-04-19 Herstellungsverfahren für Spielplätze und sich daraus ergebende Erzeugnisse Withdrawn EP0005117A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7813452 1978-04-21
FR7813452A FR2423603A1 (fr) 1978-04-21 1978-04-21 Procede de construction de courts de tennis et produits en decoulant

Publications (1)

Publication Number Publication Date
EP0005117A1 true EP0005117A1 (de) 1979-10-31

Family

ID=9207963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400252A Withdrawn EP0005117A1 (de) 1978-04-21 1979-04-19 Herstellungsverfahren für Spielplätze und sich daraus ergebende Erzeugnisse

Country Status (3)

Country Link
EP (1) EP0005117A1 (de)
ES (1) ES479717A1 (de)
FR (1) FR2423603A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418417A (zh) * 2010-09-28 2012-04-18 杨峰 大板跨现浇梁密肋楼板早拆模板支模体系
CN102418415A (zh) * 2010-09-28 2012-04-18 杨峰 小板跨现浇梁密肋楼板早拆模板支模体系

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454494A2 (fr) * 1979-04-19 1980-11-14 Moreau Armand Procede de construction d'aires de jeu et produits en decoulant
FR2807078B1 (fr) 2000-03-29 2002-10-18 Envirosport Revetement de sol sportif, notamment pour courts de tennis et autres jeux de balles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR555042A (fr) * 1922-08-11 1923-06-21 Dispositif à suspension pour le support des coffrages de poutres, plafonds et constructions analogues en béton armé
FR965694A (de) * 1950-09-19
FR1109366A (fr) * 1954-09-15 1956-01-25 Perfectionnements apportés aux procédés de construction de revêtements imperméables en béton coulé, notamment pour des terrasses et des pavements extérieurs, ainsi qu'aux revêtements de ce genre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR965694A (de) * 1950-09-19
FR555042A (fr) * 1922-08-11 1923-06-21 Dispositif à suspension pour le support des coffrages de poutres, plafonds et constructions analogues en béton armé
FR1109366A (fr) * 1954-09-15 1956-01-25 Perfectionnements apportés aux procédés de construction de revêtements imperméables en béton coulé, notamment pour des terrasses et des pavements extérieurs, ainsi qu'aux revêtements de ce genre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418417A (zh) * 2010-09-28 2012-04-18 杨峰 大板跨现浇梁密肋楼板早拆模板支模体系
CN102418415A (zh) * 2010-09-28 2012-04-18 杨峰 小板跨现浇梁密肋楼板早拆模板支模体系
CN102418415B (zh) * 2010-09-28 2014-08-13 杨峰 小板跨现浇梁密肋楼板早拆模板支模体系
CN102418417B (zh) * 2010-09-28 2014-08-20 杨峰 大板跨现浇梁密肋楼板早拆模板支模体系

Also Published As

Publication number Publication date
FR2423603A1 (fr) 1979-11-16
ES479717A1 (es) 1980-01-01
FR2423603B1 (de) 1981-04-10

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