FR2543194A1 - INSULATED CONCRETE WALL WITH SOLIDARY ANCHOR BARS - Google Patents

Abstract

THE INVENTION CONCERNS AN INSULATED CONCRETE WALL WHICH INCLUDES A SERIES OF ANCHORING MEMBERS 12 WHICH CROSS THE CENTRAL INSULATING LAYER 16 AND PENETRATING IN THE LAYERS 14 OF THE BENCH CONCRETE WALL SHAPED ON EACH OTHER OF THE INSULATING LAYER. THE ANCHORING MEMBERS ARE CONSTITUTED BY CIRCULAR BARS 22, ADVANTAGEOUSLY IN PLASTIC MATERIAL, STRIED THROUGHOUT THEIR LENGTH, HELD FIRMLY IN PLACE IN THE INSULATING LAYER BY RETAINING CLAMPS 24, ADVANTAGEOUSLY IN METAL. EACH RETAINING PIN IS SHAPED BY A DISC IN WHICH ARE CUT TWO SLOTS WHICH INTERSECT AT A RIGHT ANGLE AND A CIRCULAR OPENING SHAPED AT THE POINT OF INTERSECTION, FORMING FOUR FLAT SPRINGS WHICH COME STRAIGHT AGAINST THE SURFACE BAR HOLD IN PLACE.

Description

The present invention relates to concrete walls

  insulated with a layer of insulating material

  laid between layers of walled concrete wall The use of formwork to build concrete wall structures that have an interposed layer of insulating material is

  well known in the construction industry It is also

  Also well known in the art of using a series of anchor bars crossing the layer of insulating material.

  centrally arranged and to use retaining devices

  bare to secure the bars in place inside the layer of insulating material so that the layer of insulating material is immobilized in position during and after the pouring of the concrete A number of anchor bars and

  retainers usable for this purpose have been de-

  described in U.S. Patent No. 4,329,821.

  The present invention relates to an iso- concrete wall

  which has a series of anchor bars which are available

  seized through the insulating layer and which penetrate into the layers of poured concrete wall The anchor bars have a circular cross section and they have a series of striations or serrations over their entire length Two

  retaining clips are each mounted on one of the

  respective bars of each bar and are in abutment against the

  layer of insulating material so that the bar is now

  bare firmly in place between the formwork panels Cha-

  one of the retaining clips is constituted by a disc of

  metal that has two intersecting slots and one or

  circular groove formed at the point of intersection of the slots, this arrangement forming several flat springs which are in

  support against the circumference of the bar.

  Other characteristics of the invention will appear

  on reading the description which follows and examining

  of the accompanying drawing in which: Fig 1 is a perspective view of a concrete wall

  insulated in which the anchor bars of the present invention

  tion are arranged; Fig 2 is a detailed perspective view of the anchor bar of the present invention; and Fig 3 is a plan view of the retaining clip

  used on the anchor bar of the present invention.

  FIG. 1 shows an insulated concrete wall structure 10 which comprises a series of anchor bars 12 which constitute a combination of geometric shapes and new and original materials. The insulated concrete wall structure 10 consists of a pair of walls or

  layers of wall 14 made of shuttered concrete between which is

  a layer 16 of insulating material The walls 14 of concrete

  tone are poured between formwork panels 18 and the insulating layer 16 The formwork panels are held in place by formwork connecting bars 20 of a type known in the art A series of bars 22 extend through the layer insulation 16 roughly to the interior surfaces of the formwork panels so that the layer

  insulation is immobilized in place at a preset distance

  between the formwork panels Each bar is immo-

  bundled in place - using a pair of retaining clips

  24 which are mounted on the ends respectively oppo-

  bars and which can be moved along the bars until they are approximately level with the outer surface of the insulating layer 16 The bars 22 are provided with striations or serrations over their entire length to hang the retaining clips 24 and for

  provide additional reinforcement and a

  permanent canic with the layers of wall or walls in concrete

your 14.

  In one embodiment of the present invention, the ridges formed on the bar are such that each longitudinal section 23 of the bar between two ridges has an approximately frustoconical shape. As clearly shown in FIG. 3, the retaining clamp is constituted by a metal disc in which two slits are formed

  26 which intersect at right angles At the point of in-

  intersection of these slots, a circular opening is formed

  area 28 whose diameter is equal to or slightly less

  to the smallest diameter of the cross section of the bar.

  Each of the retaining clips 24 is mounted on one of the bars 22 by sliding the retaining clip along the bar until it comes into abutment against the surface of the insulating layer. The frustoconical configuration of each of the ridges formed along the bar ensure ratchet-type operation of the bar and the retaining clip so that the retaining clip can be moved inward toward the insulating layer and the movement of the retaining clip away from the insulating layer is prevented The bar can

  have other configurations that also prevent the

  placing the retaining clips in one direction For example, the bar can be threaded and the retaining clamp 24 can be screwed onto the bar until it stops

against the insulating layer 16.

  As more particularly shown in Fig 3,

  the lip 29 of the central opening 28 of the retaining clip

  bare comes to rest against the part of smaller diameter

  of the cross section of the bar The slots 26 form-

  mées in the retaining clamp form four flat springs which are elastically biased in abutment against the striations of the bar The simple flat spring configuration with decreasing section of the present invention allows to produce springs having a uniform force same bending force to all sections along their length and they can support the same load for a particular bending force as a rectangular spring having the same length and the same basic width The flat spring configuration of the present invention offers an arrangement optimized to ensure a uniform biasing spring force all around the circumference of the bar 22 so that the bar is firmly held in place in the insulating layer 16 and

  opposes its removal once the retaining clips

  nude 24 were fully engaged in abutment against the

surface of the insulating layer.

  In one embodiment of the present invention, the bar is made of a plastic material, such as polyethylene, and the retaining clip is made of a metal, such as stainless steel. Thus, the lip 29 of the opening 28 will tend to sink into the periphery of the bar if you try to move the bar or the retaining clip in the wrong direction However, you can

  also use other suitable materials well con-

  naked in the art for manufacturing the bar and the retaining clip The fact that the lip of the opening of the retaining clip tends to sink into the surface of the

  bar if you try to remove it increases the holding capacity

  bare retaining clip and fixity of the suit

clamp and bar.

  Although an embodiment has been described and shown

  tion of an insulated concrete wall of the invention provided with integral anchor bars and its construction method, it is

  also possible to build, other modes of realization

  tion Thus, it is understood that one can make modifications to the embodiment described without departing from the

  neither depart from the spirit of the invention as

  finished in the appended claims.

Claims (3)

  1 An insulated concrete wall, characterized in that it comprises: two layers of wall (14) made of shuttered concrete; an insulating layer   (16) interposed between them; a series of bars (22) available   placed perpendicularly through the insulating layer and penetrated   trant in the layers of concrete wall, the bars   so many multiple streaks along their entire length; a series   retainers (24) mounted on the bars for retaining   securely hold the bars relative to the insulating layer, each of the retaining devices consisting of a plate in which through slots are formed   (26) which intersect and an opening (28) formed through   toward the plate at the point where the slots intersect, so that the retainers are evenly pressed against the perimeter of the bar so that each retainer can move in one direction on the   helm but opposes moving in the opposite direction.   2 insulated concrete wall according to claim 1, characterized in that the intersecting slots (26) formed in each retaining device (24) are approximately orthogonal. 3 insulated concrete wall according to claim 1, characterized in that the opening (28) formed in each of the retaining devices (24) and the cross section of the bar (22)   are approximately circular so that the circumference   rence of the bar is in abutment against the lip (29) of the   greenery. 4 insulated concrete wall according to claim 1, characterized in that the slots (26) delimit several flat springs   facing each other, each spring having an approximately uniform force forms over its entire section.   Insulated concrete wall according to claim 4, characterized in that each longitudinal section between any two ridges of the bars (22) is approximately frustoconical so that the bar functions like a ratchet allowing   thereby the retainers (24) to be positioned   born by sliding inwards against the surface of the insulating layer (16) while preventing the outward movement of the retaining devices away of the insulating layer.   6 insulated concrete wall according to claim 1, characterized in that the retaining clamp (24) is made of metal and the bar (22) is made of plastic.