EP1009891A1 - Sicherheitsausrüstung an hohlraumplatten aus beton und platten mit dieser ausrüstung - Google Patents

Sicherheitsausrüstung an hohlraumplatten aus beton und platten mit dieser ausrüstung

Info

Publication number
EP1009891A1
EP1009891A1 EP98921558A EP98921558A EP1009891A1 EP 1009891 A1 EP1009891 A1 EP 1009891A1 EP 98921558 A EP98921558 A EP 98921558A EP 98921558 A EP98921558 A EP 98921558A EP 1009891 A1 EP1009891 A1 EP 1009891A1
Authority
EP
European Patent Office
Prior art keywords
slab
slabs
cells
arches
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.)
Granted
Application number
EP98921558A
Other languages
English (en)
French (fr)
Other versions
EP1009891B1 (de
Inventor
Nicolas Michel De Tretaigne
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
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 Individual filed Critical Individual
Publication of EP1009891A1 publication Critical patent/EP1009891A1/de
Application granted granted Critical
Publication of EP1009891B1 publication Critical patent/EP1009891B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • E04G21/145—Means in or on the elements for connecting same to handling apparatus specific for hollow plates

Definitions

  • the present invention relates to a safety device for honeycombed concrete slabs, as well as the slabs comprising this device.
  • the hollow core slab is a prefabricated hollow slab of reinforced or prestressed concrete, which can be used as a floor element in the construction of both collective and individual dwellings, as well as buildings for professional use such as schools, shops, hospitals, hotels and offices, or factories, warehouses, parking lots, flat roofs, etc.
  • the cells made up of hollow cylindrical parts can be used for the passage of sheaths or cables.
  • honeycomb slabs are usually made in a vibrating mold open at the top.
  • the face in contact with the bottom of the mold is smooth, the opposite face, in the open air during casting being rough.
  • the tiles have to be painted directly, they are used with the smooth part underneath. If they have to be plastered or given a coating, they are used with the rough part underneath. This face, located at the manufacturing side of the open side of the mold where the surface is poorly controlled is therefore irregular. The plaster layer adheres relatively poorly.
  • honeycombed slabs are placed against each other, in a joined manner, and keyed by concrete.
  • the installation is very fast and is generally carried out without prop or scaffolding, the slabs resting only by their two ends on previously installed edge beams.
  • the frame is most often formed of longitudinal steel wires arranged only at the bottom, below the cells. Handling is generally carried out by crane, using hooks inserted into the cells at the two ends of the slab. The absence of reinforcement at the top makes it fragile and it has happened that it breaks above the hooks causing the slab to fall, sometimes causing more or less serious accidents.
  • honeycomb slabs however, have steel lifting loops provided at the ends of the slabs.
  • this system requires a special lifting beam rented by the manufacturer.
  • the arrangement of the loops, located in recesses in the slab makes manufacturing more complex and therefore more expensive.
  • the device according to the present invention aims to remedy these drawbacks. It makes it possible, without significantly increasing the cost of manufacturing the hollow core slabs, to handle them safely with common type lifting hooks.
  • FIG. 1 is an axonometric view of a honeycomb slab according to the invention
  • FIGS. 2 and 3 illustrate the use of a handling hook, inserted respectively at the end of a slab and set back from this end
  • FIG. 4 is a partial view showing a roll bar mounted on the end of the reinforcing bars a slab
  • FIG. 5 is an end view of a slab showing the mounting of a double hoop
  • FIG. 6 is a partial view representing the underside of a striated slab to facilitate the attachment of plaster or plaster.
  • the device according to the invention applies to alveolate slabs 1 similar to that shown in FIG. 1 and made up of a concrete body comprising a series of longitudinal cylindrical alveoli 2 and reinforcement bars 3 generally parallel to these alveoli arranged at the bottom.
  • These slabs made of pre-stressed or non-stressed vibrated concrete, are of substantially trapezoidal section and generally have on their sides one or more ribs 4 intended to allow the keying concrete poured over it to hang and thus form a perfectly secured assembly.
  • honeycomb slabs 1 comprise, in particular near each of their ends, complementary reinforcements in the form of arches 5 fixed to the longitudinal bars 3 and passing through- above the cells 2 or a part of them. These arches give the upper part of the slab a solidity allowing it to be safely handled by means of lifting hooks 6 ( Figure 2). These arches can be simple ( Figures 1 and
  • the honeycomb slabs 1 may include hoops 5 disposed at a certain distance from said walls ends and associated with pre-drilled holes 7 making it possible to introduce the hooks 6 into the cells through the top of the slabs 1 (FIG. 3).
  • the bottom of the mold will advantageously include grooves or ribs so as to obtain a ridged underside 8 of the alveolate slabs 1, these ridges possibly being longitudinal (FIG. 5) or present any other configuration.
  • the arrangement of the reinforcing arches 5 does not require any modification of the usual means of manufacturing honeycomb slabs and, in particular does not hinder the establishment and extraction of the nuclei of formation of the alveoli which move parallel to the axis of the slab.
  • the positioning of the various constituent elements gives the object of the invention a maximum of useful effects which had not, to date, been obtained by similar devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Rod-Shaped Construction Members (AREA)
EP98921558A 1997-04-18 1998-04-17 Hohlraumplatte aus beton mit sicherheitsausrüstung Expired - Lifetime EP1009891B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9705038 1997-04-18
FR9705038A FR2762340B3 (fr) 1997-04-18 1997-04-18 Dispositif de securite pour dalles alveolees en beton et dalles comportant ce dispositif
PCT/FR1998/000780 WO1998048128A1 (fr) 1997-04-18 1998-04-17 Dispositif de securite pour dalles alveolees en beton et dalles comportant ce dispositif

Publications (2)

Publication Number Publication Date
EP1009891A1 true EP1009891A1 (de) 2000-06-21
EP1009891B1 EP1009891B1 (de) 2004-06-23

Family

ID=9506244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98921558A Expired - Lifetime EP1009891B1 (de) 1997-04-18 1998-04-17 Hohlraumplatte aus beton mit sicherheitsausrüstung

Country Status (5)

Country Link
EP (1) EP1009891B1 (de)
DE (1) DE69824745T2 (de)
ES (1) ES2224393T3 (de)
FR (1) FR2762340B3 (de)
WO (1) WO1998048128A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1293266C (zh) * 2003-09-26 2007-01-03 邱则有 一种空腔模壳构件

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH313490A (fr) * 1953-03-13 1956-04-15 Gachet Max Bâtisse
FR1148327A (fr) * 1956-05-02 1957-12-06 élément préfabriqué pour la confection de planchers
FR1183531A (fr) * 1957-09-28 1959-07-08 élément de plancher préfabriqué
DE2422192A1 (de) * 1974-05-08 1975-11-13 Otto Hofmann Vorgefertigtes deckenbauelement
BE858167A (nl) * 1977-08-26 1977-12-16 Cuyvers Edward G Welfselelement en inrichting ter vervaardiging van dergelijke welfselelementen
DE3310482A1 (de) * 1983-03-23 1984-09-27 Heinrich Dr.-Ing. 7000 Stuttgart Bechert Betontraeger, -tragplatte od. dgl.
FR2592080B1 (fr) * 1985-12-23 1988-08-12 Bulte Jacques Poutrelle alveolee en beton

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9848128A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1293266C (zh) * 2003-09-26 2007-01-03 邱则有 一种空腔模壳构件

Also Published As

Publication number Publication date
FR2762340B3 (fr) 1999-06-25
DE69824745D1 (de) 2004-07-29
DE69824745T2 (de) 2005-08-18
EP1009891B1 (de) 2004-06-23
ES2224393T3 (es) 2005-03-01
FR2762340A1 (fr) 1998-10-23
WO1998048128A1 (fr) 1998-10-29

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