WO2008064436A1 - Joint métallique permettant l'expansion et le transfert de charges verticales entre dalles de béton adjacentes - Google Patents

Joint métallique permettant l'expansion et le transfert de charges verticales entre dalles de béton adjacentes Download PDF

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Publication number
WO2008064436A1
WO2008064436A1 PCT/BE2007/000120 BE2007000120W WO2008064436A1 WO 2008064436 A1 WO2008064436 A1 WO 2008064436A1 BE 2007000120 W BE2007000120 W BE 2007000120W WO 2008064436 A1 WO2008064436 A1 WO 2008064436A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
sheet
sections
slabs
concrete
Prior art date
Application number
PCT/BE2007/000120
Other languages
English (en)
Inventor
Pierre Raymond Kerrels
Original Assignee
Coredis - Comptoir De Representation Et De Distribution Sa
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 Coredis - Comptoir De Representation Et De Distribution Sa filed Critical Coredis - Comptoir De Representation Et De Distribution Sa
Publication of WO2008064436A1 publication Critical patent/WO2008064436A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/14—Dowel assembly ; Design or construction of reinforcements in the area of joints

Definitions

  • This invention concerns a metal expansion joint between concrete slabs and in particular, slabs for industrial floors.
  • the area is divided into square or rectangular sections constituting the concrete slabs. These concrete slabs are demarcated using metal profiles constituting the expansion joint between the slabs.
  • These joints are designed to allow variations in the dimensions of the slabs, mainly due to shrinkage following hardening of the concrete after pouring, and to thermal variations.
  • the joints must also be able to withstand stress due to heavy loads and maintain the concrete slabs at the correct horizontal level. Special care must be taken to avoid damaging the edges of the concrete slabs in contact with the metal joint.
  • the metal joint is made from a single main sheet, which is cut and bent such that it serves as the median separator sheet and also forms the plates that transfer the vertical load charges between the two slabs, these plates being obtained by appropriate bending of the said main sheet.
  • Figure 1 is a cross section of the joint according to the invention.
  • Figures 2 to 5 are views showing the embodiment of the single main sheet, constituting the joint according to the invention;
  • Figure 6 is an exploded perspective view of the joint in accordance with figure 1.
  • Figure 7 is a view similar to figure 1 , showing a cross section of the joint following movement, in the horizontal plane, of the two adjacent slabs.
  • the metal joint 10 situated between two edges of slabs 1 and 2 is made essentially from a single principal longitudinal sheet 3 , positioned according to a vertical median line L, of which the upper end constitutes the upper edge of concrete slab 1 and of which the lower end has longitudinal sections bent at an angle of 90° either side of the median line L.
  • Sections 5, bent towards the interior of slab 1 are fitted with openings 8 allowing adequate anchorage between the concrete slab and the horizontal sections 5 of the vertical main sheet 3.
  • the horizontal sections 5 and 6 thus constitute load transfer surfaces between the adjacent concrete slabs 1 and 2. It is generally acknowledged that the load transfer surfaces are situated at approximately mid-height of the concrete slabs.
  • the main sheet 3 must be extended downwards by a secondary sheet 9, which is thinner than the main sheet 3. The width of sheet 9 then depends on the thickness of the concrete slabs.
  • Main sheet 3 and secondary sheet 9 therefore constitute the lateral extremity of slab 1 and form an integral part of this slab with the aid of the pins 1 1 and the openings 8 in sections 5.
  • the essential element of the metal joint 10, the subj ect matter of the invention, is thus constituted by the main sheet 3, with the horizontal sections 5 and 6, the vertical sections 4, the pins 1 1 and the secondary sheet 9 extending downwards to the lower extremity of the slabs.
  • These parts 3 , 4, 5, 6, 1 1 and 9 form an integral part of the concrete slab 1.
  • the upper edge of slab 2 is fitted with a flat bar 13, which also has a series of pins 12 anchoring the flat bar 13 into the concrete of slab 2.
  • the flat bar is fitted along the upper edge of the single main sheet 3 using bolts (not shown), which pass through the oblong openings 14 provided at regular intervals along the upper edge of sheet 3 and the flat bar 13.
  • bolts (or just the nut) are made of plastic so that they can break during the usual shrinkage of concrete when it is solidifying.
  • Figures 2 to 5 show an example of the manufacturing process for the principal sheet 3.
  • Figure 2 shows an end of a sheet 3 , which can for example be 12,5 cm wide and 300 cm long.
  • the thickness of the main sheet 3 shall preferably be about or superior to 5 mm in order to secure the rigidity of the joint structure before pouring the concrete and to absorb the transfer of important vertical charges applied to the surface of the concrete slabs.
  • the lower side is indented at predetermined intervals by saw (or laser) cuts 15 in order to form sections 4, 5 and 6. At the same time, the openings 8 and the oblong holes 14 can be made.
  • metal joint such as described and illustrated in the present description is only an example embodiment and other forms or models of elements are possible without straying outside the framework of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

La présente invention concerne un joint permettant l'expansion entre les dalles (1, 2) tout en évitant un mouvement vertical entre les bords des dalles par le biais de panneaux de transfert de charges, et comportant une seule plaque principale longitudinale (3) positionnée le long d'une ligne médiane verticale (L) ; l'extrémité supérieure de la plaque (3) constituant le bord supérieur de la dalle de béton (1) et l'extrémité inférieure ayant des sections horizontales (5, 6) pliées à angles droits (90°) de chaque côté de la ligne médiane (L) créant ainsi des panneaux pour transférer les charges verticales d'une dalle à l'autre.
PCT/BE2007/000120 2006-11-29 2007-11-21 Joint métallique permettant l'expansion et le transfert de charges verticales entre dalles de béton adjacentes WO2008064436A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2006/0584 2006-11-29
BE2006/0584A BE1017376A5 (fr) 2006-11-29 2006-11-29 Joint metallique permettant la dilatation entre dalles de beton.

Publications (1)

Publication Number Publication Date
WO2008064436A1 true WO2008064436A1 (fr) 2008-06-05

Family

ID=38050296

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BE2007/000120 WO2008064436A1 (fr) 2006-11-29 2007-11-21 Joint métallique permettant l'expansion et le transfert de charges verticales entre dalles de béton adjacentes

Country Status (2)

Country Link
BE (1) BE1017376A5 (fr)
WO (1) WO2008064436A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2487817A (en) * 2010-10-28 2012-08-08 Underwood Companies Holdings Pty Ltd Edging and joints for concrete slabs
US8347574B2 (en) 2009-10-21 2013-01-08 Plakabeton S.A. Joint elements for slabs
AU2010236065B2 (en) * 2009-10-28 2014-02-20 Illinois Tool Works Inc. Edging For Concrete Slabs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278023A (en) * 1940-07-24 1942-03-31 Robert R Robertson Contraction joint
US2349983A (en) * 1939-06-05 1944-05-30 Musall Alexander Device for doweling transverse joints of concrete road pavements
US2444373A (en) * 1945-09-10 1948-06-29 Robert R Robertson Road center joint
EP1391556A1 (fr) * 2002-08-21 2004-02-25 Plakabeton Coffratec S.C.A. Dispositif pour équiper un joint de dilatation, en particulier un joint de dilatation entre des dalles de béton
WO2005111307A1 (fr) * 2004-05-19 2005-11-24 Coredis S.A. Joint metallique allege pour surfaces en beton

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2349983A (en) * 1939-06-05 1944-05-30 Musall Alexander Device for doweling transverse joints of concrete road pavements
US2278023A (en) * 1940-07-24 1942-03-31 Robert R Robertson Contraction joint
US2444373A (en) * 1945-09-10 1948-06-29 Robert R Robertson Road center joint
EP1391556A1 (fr) * 2002-08-21 2004-02-25 Plakabeton Coffratec S.C.A. Dispositif pour équiper un joint de dilatation, en particulier un joint de dilatation entre des dalles de béton
WO2005111307A1 (fr) * 2004-05-19 2005-11-24 Coredis S.A. Joint metallique allege pour surfaces en beton

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8347574B2 (en) 2009-10-21 2013-01-08 Plakabeton S.A. Joint elements for slabs
AU2010236065B2 (en) * 2009-10-28 2014-02-20 Illinois Tool Works Inc. Edging For Concrete Slabs
GB2487817A (en) * 2010-10-28 2012-08-08 Underwood Companies Holdings Pty Ltd Edging and joints for concrete slabs
GB2487817B (en) * 2010-10-28 2016-06-29 Illinois Tool Works Improvements in and in relation to metal edging for concrete slabs

Also Published As

Publication number Publication date
BE1017376A5 (fr) 2008-07-01

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