EP0996793A1 - Ensemble d'attaches pour un systeme de coffrage de murs - Google Patents

Ensemble d'attaches pour un systeme de coffrage de murs

Info

Publication number
EP0996793A1
EP0996793A1 EP98930600A EP98930600A EP0996793A1 EP 0996793 A1 EP0996793 A1 EP 0996793A1 EP 98930600 A EP98930600 A EP 98930600A EP 98930600 A EP98930600 A EP 98930600A EP 0996793 A1 EP0996793 A1 EP 0996793A1
Authority
EP
European Patent Office
Prior art keywords
wall form
panel
panels
wall
spacer member
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Withdrawn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
EP98930600A
Other languages
German (de)
English (en)
Inventor
Frank B. Bentley
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.)
FORMTECH INTERNATIONAL Corp
Original Assignee
1251005 ONTARIO Ltd
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 1251005 ONTARIO Ltd filed Critical 1251005 ONTARIO Ltd
Publication of EP0996793A1 publication Critical patent/EP0996793A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
    • E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8635—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties attached to the inner faces of the forms
    • E04B2/8641—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties attached to the inner faces of the forms using dovetail-type connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8647—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties going through the forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
    • E04B1/6125—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface
    • E04B1/6129—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface the connection made by expansion

Definitions

  • This invention relates to tie assemblies and wall form units and systems used to construct structural components such as walls. More particularly, the present invention relates to such tie assemblies, wall form units and systems form for walls walls formed of a pourable, curable construction material where the form system remains in situ.
  • Construction components such as walls and columns, are often made from castable materials such as concrete.
  • a form is built or erected which functions as a mould for the castable material.
  • forms were typically made from inexpensive materials such as wood.
  • the form is erected to create a cavity capable of holding the castable material (eg. concrete) in a liquid form.
  • the concrete is then poured or otherwise fed into the cavity created by the form and then allowed to set.
  • the form is removed. After use as a form, quite often, much of the form material can not be reused and must be discarded. Furthermore, the removal of the form requires a significant amount of labour.
  • Another way a form can be built is to make a form from several form units, each form unit having a pair of spaced panels.
  • the form units are placed adjacent each other, both horizontally and vertically, to build a complete form. So long as the individual form units are not too small, enhanced efficiency in the construction of a form may be achieved in such a system. This is particularly the case if the form units are designed to remain permanently in the situ, once placed, and do not have to be removed once the concrete has been poured and set.
  • One such system has side panels for each form unit made of an insulative material. These side panels perform the dual purpose of functioning as the side walls for the cavity and then after the concrete has set, as an insulative layer on each side of the concrete.
  • Another difficulty in such systems is the lack of space efficiency in the transportation of pre-built form units to a construction site.
  • a tie assembly for a wall form unit.
  • the tie assembly connects a first panel and a second panel which define a space to contain a pourable, curable construction material, such as concrete, for forming a wall section.
  • the tie assembly, first and second panels, and the cured construction material combine to form the final wall structure.
  • a spacer member maintains the first and second panels in a predetermined relation.
  • the spacer member has spaced apart, opposing edges, and each edge is provided with connecting means.
  • a first and a second connecting member are each provided with a support for respective attachment to the first and second panels, and a coupling projecting from the support.
  • the coupling defines a channel for sliding engagement with the connecting means.
  • An abutment means permits the coupling and the connecting means to cooperate to detachably retain the connecting means.
  • a wall form unit for containing a pourable, curable construction material for forming a wall section integrating the wall form unit and the construction material.
  • the wall form unit comprises a first panel and a second panel in predetermined relation for defining the wall section.
  • a tie assembly includes a spacer member for maintaining the first and second panel in the predetermined relation, opposing first and second connecting members attached to the spacer member, and abutment means for retaining the spacer member in engagement with the connecting member.
  • the spacer member has spaced apart, opposing edges, each the edge provided with connecting means.
  • the first and second connecting members are each provided with a support for attachment, in opposed relation, to the respective first and second panels, and a coupling projecting from the support.
  • the coupling defines a channel for sliding engagement with the connecting means.
  • the abutment means permits the coupling and the connecting means to cooperate to detachably retain the connecting means.
  • a wall form system for forming a wall section having a core of pourable, curable construction material sheathed by a plurality of panels.
  • the wall form section is constructed from at least two wall form units, each wall form unit having means for interlocking the wall form units to define the wall section.
  • Each wall unit comprises a first panel and a second panel in predetermined relation for receiving the construction material, and at least one tie assembly.
  • the tie assembly comprises a spacer member for maintaining the first panel and the second panel in the predetermined relation, opposing first and second connecting members attached to the spacer member, and abutment means for retaining the spacer member in engagement with the connecting members.
  • the spacer member has spaced apart, opposing edges, each the edge provided with connecting means.
  • the first and second connecting members are each provided with a support for attachment, in opposed relation, to the respective first and second panels, and a coupling projecting from the support.
  • the coupling defines a channel for sliding engagement with the connecting means.
  • the abutment means permits the coupling and the connecting means to cooperate to detachably retain the connecting means.
  • a form system having first and second form units, said first and second panels positioned in spaced relation to each other, each of said first and second panels having an inwardly facing surface and an outwardly facing surface and a first opening therethrough; at least one tie member, said tie member comprising a spacer member having first and second ends, said spacer member being disposed transversely between said panels, said tie member further comprising first and second unit connecting members being positioned away from said inward facing surface and proximate said outward facing surface of said first panel and said second unit connecting member being positioned away from said inward facing surface of said second panel and proximate said outward facing-surface of said second panel, said tie member having a first attachment means providing an attachment of said spacer member to said first unit connecting member through said first opening in said second panel; said first and second unit connecting members of said tie member having a first and second connection means respectively, to permit said first unit connecting member of a first form unit to be connected with one of said first and second connecting members of
  • kits for building a form unit having first and second spaced apart panels each having an opening therethrough comprising, in combination, a plurality of elongated spacer members, each said spacer members, having first and second ends, first and second elongated unit connecting members, each said spacer member having a first connecting device located proximate said first end adapted to co-operate with a first connecting device on said first unit connecting member to establish a first connection, therebetween, through said opening in said first panel; and said spacer member having a second connecting member located proximate said second end adapted to co-operated with a second connecting member to establish a second connection, therebetween, though said second opening in said second panel; said first and second unit connecting members of said also having a third and fourth connection means respectively, to permit said first unit connecting member of a first form unit to be connected with one of said first and second connecting members of a second form unit, and said second unit connecting member of said first form unit to be connected with the other
  • a form unit for a form system comprising: first and second panels positioned in spaced, generally parallel relation to each other, each of said first and second panels having an inwardly facing surface and an outwardly facing surface and a first opening therethrough; first and second tie members, each of said first and second tie members comprising an elongated spacer member having first and second ends, said spacer member being disposed transversely between said panels and said first and second tie members being spaced longitudinally from one another, said tie member further comprising first and second elongated unit connecting members, said first unit connecting member being oriented generally vertically and positioned on the outward side of said first panel and said second unit connecting member being oriented generally vertically and positioned on the outward side of said second panel, said tie member having a first attachment means for attaching said spacer member to said first connecting member through said first opening in said first panel, and a second attachment means for permanently attaching said tie member to said second connecting member through said first opening in said second panel
  • Figure 1 is a perspective view of a form unit made in accordance with one embodiment of the invention.
  • Figure 2 is a front, elevation view of part of the form unit of Figure 1;
  • Figure 3 is a plan view of part of the form unit of Figure 1;
  • Figure 4 is a plan view of the connection between the tie member and connecting member shown in Figure 1 ;
  • Figure 5 is a perspective view showing the connection between the tie member and connecting member shown in Figure 1 ;
  • Figure 6 is a detailed view showing a connection made between two vertically adjacent connected wall-forming units
  • Figure 7 is a plan view from above along the line 7-7 in Figure 6;
  • Figure 8 is plan view of the detail in Figure 6 along the line 8-8 in Figure 6;
  • Figure 9 is a similar view to Figure 6 showing a connection made between two vertically adjacent connected wall-forming units
  • Figure 10 is a schematic side elevational view of part of a complete form constructed in accordance with an embodiment of the invention
  • Figure 11 is a schematic elevational view of part of a form constructed in accordance with an embodiment of the invention
  • Figure 12 shows a further embodiment of a wall form unit according to the present invention.
  • Figure 13a shows a ridged structure for interlocking panels accordint to the embodiment of Fig. 12; and Figure 13b shows a complementary grooved structure for cooperation with the structure of
  • a single form unit 20a is illustrated.
  • a structural component for example a wall
  • several such form units 20a are utilized.
  • Wall form units 20a are placed adjacent to, and in lateral alignment with, other form units to make a complete form structure, as illustrated in Figure 10.
  • a single form unit 20a has a pair of spaced, generally 10 planar and transversely aligned panel members 22a and 24a.
  • panel members 22a and 24a are made from a lightweight, temperature insulating material such as polystyrene or an extruded form.
  • the panels may however, be made of materials other than those which are particularly adapted to provide for temperature insulation, but which will retain the liquid material.
  • panel unit 20a is shown with a single tie member 26a in detail. However, to provide greater stability for a form unit, a pair of tie members 26a and 28a may be employed.
  • each tie member 26a comprises three components: a transversely oriented spacer member 30a and a pair of vertically oriented unit connecting members 34a and 36a.
  • the form unit 20a, including the tie member 26a is shown in its disassembled state.
  • spacer member 30a may be easily attached to vertical unit connecting members 34a and 36a in the manner hereafter described.
  • spacer member 30a has a recess extending substantially the full vertical length of the spacer member, as is clearly illustrated by a top view in Figure 4.
  • Spacer member 30a, and elements 34a and 36a are made from a material such as polypropylene, nylon 6/6, PVC or A.B.S.
  • Spacer member 30a also has an indentation 62a on the upper transverse arm 63a of the spacer member 30a and an indentation 64a on the lower transverse arm 65a of the spacer member 30a, although other embodiments of this invention may have a plurality of such indentations.
  • Each indentation 62a and 64a is adapted to be able to receive, and support at that location, a concrete strengthening material such as steel rebar 61. It will be appreciated that when several form units are arranged laterally adjacent to each other, lengths of rebar may be supported laterally on the indentations 62a and 64a of successive laterally positioned form units. To assist in the insertion and retention of the lengths rebar 61, the indentations 62a and 64a may be made from a resilient material.
  • Each of the vertical form unit connecting members 34a and 36a has a fin 58a and 60a extending substantially the full vertical length of the inside end of the connecting member. Recesses 38a and 40a are so arranged to cooperate with the fins 58a and 60a such that each of the said fins can be received into one of said recesses though one of two apertures in panels 22a and 24a. It will be appreciated if panels 22a and 24a are constructed of a material such as polystyrene, it will be easy for a person assembling form unit 20a to create the apertures required for the interconnection between the spacer member 30a and the vertical unit connecting members 34a and 36a. However, greater efficiency may be achieved if the apertures are at least pre-marked, if not preformed.
  • FIG 4 The attachment between recesses 38a and 40a and fins 58a and 60a is illustrated in Figure 4.
  • a positive attachment is created when the fin 60a slides into the recess 40a in a vertical direction.
  • the recess 40a narrows at its outer margin 41a in order to grasp the correspondingly narrowed portion 61a of the fin 60a and provide a snug fit between spacer member 30a. and connecting elements 34a and 36a.
  • the recess does not reach all the way to the upper end of the spacer element 30a, thus preventing further sliding of the connecting elements 34a and 36a, as is illustrated in Figure 5.
  • the vertical unit connecting members are oriented vertically and have a surface which lies against the outward facing surface of a panel.
  • connecting elements 34a and 36a have a laterally (in direction of axis X) extending channel or groove 76a in their upper lateral surfaces 75 a and lower lateral surfaces 77a.
  • a linking element 71a has a laterally extending tongue or protrusion 72a which extends upwards from an upper, lateral surface 74a and downwards from a lower, lateral surface 79a.
  • a pair of form units may be positioned one on top of the other wherein the channel of a lower form unit will be received in corresponding and respective protrusion of a linking element, which is then received in a corresponding and respective channel of an upper form unit (not shown). The result is that displacement of a first upper form unit relative to a second lower form unit is resisted.
  • FIG 6 the lower portion of a typical unit connecting member 34a and the upper portion of a typical linking element 71a are shown disconnected from each other.
  • the unit connecting member and the linking element both lie against the outer surfaces of their respective panels.
  • Formed in the lower portion of member 34a is a recess 76a defined by an opening and vertically oriented side walls 82a, 84a and a base 80a.
  • the side walls 82a,84a are each saw-toothed.
  • Connection member 54a has at its upper end an arrow formation 86a with an arrowhead 88a.
  • the saw-tooth pattern of the walls 82a,84a is such that the sloped sides of arrowhead 88a are guided and carried past the individual teeth during axial insertion of the arrow formation 86a into the recess 76a in the direction of axis z of Figure 1.
  • the lower portion of the connecting member is deformable and permits side walls to be displaced allowing insertion of the arrowhead 88a into the recess. But the side walls are resilient.
  • the dimensions of the arrowhead formation 86a and the materials from which it is made, are such that it would be quite stiff and a have a relatively high degree of resistance to bending.
  • lever device typically be employed to bend the arrowhead out of the recess to release the connection.
  • a lever device might be a crow bar or a hammer claw.
  • each form unit has a pair of vertical form unit connecting members.
  • Each form unit is off-set in its lateral position relative to form unit above and below.
  • one of the pair of connecting members 26e is connected to a connecting member 28g of a form unit 20g, and also to a connecting member 28k of a form unit 20k.
  • the other of the pair of connecting members 28e is connected to connecting member 26f of a form unit 20f and 30 also to a connecting member 26h of a form unit 26a.
  • the wall forming units can be easily assembled by using a pair of panels and the components of at least one tie member, but preferably using as least two tie members.
  • a spacer portion is positioned in between the two panels, with its connecting members each passing through an aperture in a panel.
  • a pair of vertical connecting members will be secured in a vertical orientation, against the outer surface of each panel and then will be attached to the spacer member by the attachment of the connecting members to the spacer members as described above.
  • the lower most form units may be secured to a base in lateral alignment (for example, a previously poured footing) providing an interconnection between a concrete footing made with a length of 2 X 4 secured to the concrete (eg. by concrete nails) and then providing interconnections between the lengths of 2 X 4 and the vertical unit cormecting members.
  • a base in lateral alignment (for example, a previously poured footing) providing an interconnection between a concrete footing made with a length of 2 X 4 secured to the concrete (eg. by concrete nails) and then providing interconnections between the lengths of 2 X 4 and the vertical unit cormecting members.
  • each form unit may be placed on top of the base form units and interconnected such as in the manner described above.
  • each form unit will comprise at least a pair of laterally spaced tie members. This will provide for greater vertical stability of the form and assist in the construction process.
  • the vertical unit connecting members will provide a base to which other finishing components may be attached (for example, dry wall for interior walls, siding on exterior walls).
  • FIG. 12 shows a cutaway view of a wall form unit 100, including a tie assembly 104, previously referred to as a tie member, connecting two opposing panels 108.
  • Tie assembly 104 is an interconnected assembly of a spacer member 112 and two connecting members 116.
  • Spacer member 112 consists of edges 120 spaced apart by a plurality of arm members
  • Edges 120 have a generally T-shaped profile for engaging complementary T-shaped channel 130 provided on connecting members 116. An end 132 of each edge 120 is also provided with an abutment 134 which limits the sliding engagement between edges 120 and channel 130.
  • connecting members 116 consist of a support portion 136 supporting a projecting coupling 138, previously designated a connection means.
  • Coupling 138 is formed by two opposing rows 140 and 142 of staggered teeth 144 defining channel 130.
  • the substantially L- shaped teeth 144 give channel 130 its T-shaped profile complementary to edge 120.
  • connecting member 116 is embedded in its respective panel 108.
  • connecting member 116 is an extruded, or otherwise molded, plastic component and panel 108 is a blown polystyrene panel.
  • Connecting members 116 can be prefabricated and then provided to insulating panel manufacturers.
  • the polystyrene panels can then be manufactured in known conventional manners to incorporate the connecting members 116 in a predetermined arrangement suitable for their interconnection to form wall form unit 100.
  • the connecting members 116 are embedded in the panel such that coupling 138 is disposed within a groove 146, but still accessible for interconnection with the edges 120 of spacer member 112.
  • a further feature of this embodiment is the provision of an integral means for interlocking the panels 108 to form a wall form system.
  • a ridged, interlocking structure 150 is provided on the at one edge 152 of the panel 108, and a complementary grooved structurel54 is provided on the opposite edge 156. The ridged interlock 150 and grooved interlock
  • the outer facing surfaces of the panels may be recessed to provide a recess into, which the vertical unit connecting members may be received such that when the form unit is assembled, the vertical connecting members have outward facing surfaces which sit flush with the remaining parts of the outer surfaces of the panels.
  • Form units may be arranged as shown in Figure 12. wherein each form unit may be secured both above and below to a pair of form units.
  • form unit is connected by three vertical connecting elements associated with each of the two panels (only one of the panels and. one set of vertical connecting elements being visible in Figure 12) to corresponding sets of connecting elements associated with form units 220b and 220c.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Load-Bearing And Curtain Walls (AREA)

Abstract

Un système de coffrage comprend plusieurs unités de coffrage (100) comportant chacune deux panneaux (108) positionnés de manière espacée l'un par rapport à l'autre. Plusieurs éléments d'attaches (104) relie les panneaux. Ces attaches comprennent un élément d'espacement (112) disposé dans le sens transversal entre les panneaux. Chaque élément d'attache comprend, en outre, deux éléments de raccordement (116) positionné chacun sur une surface extérieure d'un panneau. Les éléments d'espacement sont chacun raccordés à un premier et un deuxième éléments de raccordement, par une première ouverture ménagée dans les panneaux. Ces premier et deuxième éléments de raccordement comportent des premier et deuxième moyens de raccordement, respectivement, pour permettre aux premier et deuxième élément de raccordement d'une première unité de coffrage d'être raccordés aux premier et deuxième éléments de raccordement correspondants d'une deuxième unité de coffrage.
EP98930600A 1997-07-04 1998-07-03 Ensemble d'attaches pour un systeme de coffrage de murs Withdrawn EP0996793A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA002209251A CA2209251C (fr) 1997-07-04 1997-07-04 Systeme de coffrage
CA2209251 1997-07-04
PCT/CA1998/000634 WO1999001626A1 (fr) 1997-07-04 1998-07-03 Ensemble d'attaches pour un systeme de coffrage de murs

Publications (1)

Publication Number Publication Date
EP0996793A1 true EP0996793A1 (fr) 2000-05-03

Family

ID=4160987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98930600A Withdrawn EP0996793A1 (fr) 1997-07-04 1998-07-03 Ensemble d'attaches pour un systeme de coffrage de murs

Country Status (6)

Country Link
US (1) US20050028467A1 (fr)
EP (1) EP0996793A1 (fr)
CN (1) CN1108423C (fr)
AU (1) AU8098298A (fr)
CA (1) CA2209251C (fr)
WO (1) WO1999001626A1 (fr)

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Also Published As

Publication number Publication date
US20050028467A1 (en) 2005-02-10
CN1265170A (zh) 2000-08-30
CN1108423C (zh) 2003-05-14
WO1999001626A1 (fr) 1999-01-14
CA2209251A1 (fr) 1999-01-04
AU8098298A (en) 1999-01-25
CA2209251C (fr) 2001-10-02

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