FR2897627A1 - Load anchor for use in e.g. slab, has L shaped vertical branch for providing ring, and L shaped horizontal branch with hook and lug for locking horizontal branch with armature of armed concrete plate - Google Patents
Load anchor for use in e.g. slab, has L shaped vertical branch for providing ring, and L shaped horizontal branch with hook and lug for locking horizontal branch with armature of armed concrete plate Download PDFInfo
- Publication number
- FR2897627A1 FR2897627A1 FR0601496A FR0601496A FR2897627A1 FR 2897627 A1 FR2897627 A1 FR 2897627A1 FR 0601496 A FR0601496 A FR 0601496A FR 0601496 A FR0601496 A FR 0601496A FR 2897627 A1 FR2897627 A1 FR 2897627A1
- Authority
- FR
- France
- Prior art keywords
- anchor
- hook
- zone
- horizontal branch
- branch
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
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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
- 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
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
-
- 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
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
-
- 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
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3295—Guide tracks for safety lines
Landscapes
- 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)
Abstract
Description
ANCRE D'ARRIMAGE DESTINEE A EQUIPER UNE PLAQUE DE BETON. L'invention seSTACKING ANCHOR FOR EQUIPPING A PLATE OF CONCRETE. The invention
rapporte à une ancre d'arrimage destinée à équiper une plaque de béton notamment pour la fixation d'un support de garde corps. relates to a securing anchor intended to equip a concrete slab, in particular for fastening a guardrail support.
Par plaque de béton, on pourra comprendre les dalles ou pré-dalles ou plancher coulé 5 sur place utilisées pour la construction d'immeubles. By concrete slab, it is possible to understand the slabs or pre-slabs or cast-in-place flooring used for the construction of buildings.
Pour la rationalisation du travail et pour éviter le travail de coffrage sur place ainsi que les variations atmosphériques, il est connu de préfabriquer en usine des plaques de béton armé qui vont servir, par exemple, de support et de face coffrante pour la réalisation d'un plancher en béton. For the rationalization of the work and to avoid the work of formwork on the spot as well as the atmospheric variations, it is known to prefabricate at the factory plates of reinforced concrete which will be used, for example, of support and face formante for the realization of a concrete floor.
10 Ces plaques de béton sont transportées sur le plateau d'un camion puis mises en place sur le chantier à l'aide d'une grue. 10 These concrete slabs are transported on a truck bed and then set up on site using a crane.
Pour lever cette plaque, il est nécessaire de prévoir des ancres d'arrimage ancrés dans la plaque de béton lors de sa fabrication afin de la soulever. To lift this plate, it is necessary to provide docking anchors anchored in the concrete plate during its manufacture to lift it.
Outre ces points d'arrimage pour la manipulation de la plaque, il faut également In addition to these tie-down points for handling the plate, it is also necessary to
15 prévoir des ancres d'arrimage ancrés dans la plaque pour y fixer un garde-corps provisoirement mis en place avant de lever la plaque afin d'assurer la sécurité de la personne chargée de décrocher les câbles de la grue de levage. Provide docking anchors anchored in the plate to attach a guardrail provisionally placed before lifting the plate to ensure the safety of the person responsible for unhooking the cables of the hoist crane.
En effet, la réglementation française impose que l'accès à la pré-dalle pour décrocher les élingues de la grue ne peut se faire que lorsqu'un garde-corps est mis en place. Indeed, the French regulations require that access to the pre-slab to unhook the slings of the crane can be done only when a guardrail is set up.
20 Le garde-corps doit donc être en placé avant la manipulation de la plaque. The railing must therefore be in place before handling the plate.
Le garde-corps comprend au moins deux supports verticaux sur lesquels on fixe au moins une lisse horizontale. The railing comprises at least two vertical supports on which at least one horizontal rail is fixed.
Ces supports verticaux comportent à leur base un trépied pour obtenir une assise et au centre un crochet qui vient coopérer avec un ancre d'arrimage qui présente un These vertical supports comprise at their base a tripod to obtain a seat and in the center a hook which cooperates with a docking anchor which has a
25 anneau. Le crochet passe dans l'anneau et il est alors tiré vers le haut pour exercer une tension suffisante pour la fixation du support. 25 ring. The hook passes into the ring and is then pulled upward to exert sufficient tension for the attachment of the support.
A ce jour, les ancres d'arrimage sont constituées par une tige ronde métallique pliée pour former une boucle avec les deux extrémités de la tige qui s'étendent selon des directions opposées, cette tige n'est pas pliable à la main. To date, the docking anchors are constituted by a round metal rod folded to form a loop with the two ends of the rod which extend in opposite directions, this rod is not foldable by hand.
Ces deux extrémités de la tige sont utilisées pour fixer provisoirement la boucle sur l'armature utilisée pour former la plaque en béton armé avant que le béton ne soit coulé. These two ends of the rod are used to temporarily fix the loop on the reinforcement used to form the reinforced concrete plate before the concrete is poured.
La fixation de cette boucle est faite par simple ligature sur l'armature de la plaque en béton armé. Le préposé chargé de cette opération doit fixer provisoirement la boucle pour que celle-ci soit dans un plan sensiblement perpendiculaire au plan de la plaque afin qu'elle fasse saillie partiellement lorsque le béton sera coulé et durci. Cette opération n'est pas compliquée mais n'est pas aisée car le préposé doit faire sa ligature en sorte que la boucle ne bascule pas sous l'effet du flux de béton lors du coulage de la plaque. The fixing of this loop is made by simple ligation on the reinforcement of the reinforced concrete plate. The officer responsible for this operation must temporarily fix the loop so that it is in a plane substantially perpendicular to the plane of the plate so that it projects partially when the concrete is poured and hardened. This operation is not complicated but is not easy because the agent must make his ligature so that the loop does not tilt under the effect of the flow of concrete during the casting of the plate.
Pour aller plus vite, il n'est pas rare que les extrémités opposées de la boucle préalablement formée soit fixées sur la face supérieure de l'armature utilisée pour l'armature de la plaque de sorte que l'armature ne participe pas à l'ancrage de la boucle. To go faster, it is not uncommon for the opposite ends of the previously formed loop to be fixed on the upper face of the reinforcement used for the reinforcement of the plate so that the reinforcement does not participate in the reinforcement. anchoring the loop.
Lors du transport, les plaques sont empilées les unes sur les autres de sorte que ces parties de boucles qui dépassent de la face supérieure de chaque plaque constituent pour la plaque située immédiatement au dessus un point de localisation de contraintes. On comprend donc que cela pose des difficultés. During transport, the plates are stacked on top of each other so that those loop portions which protrude from the upper face of each plate constitute for the plate immediately above a stress locating point. So we understand that this poses difficulties.
L'invention se propose d'apporter une solution notamment aux problèmes évoqués ci-20 avant. The invention proposes to provide a solution in particular to the problems mentioned above.
A cet effet, l'invention se rapporte à une ancre d'arrimage destinée à équiper une plaque en béton armé d'une armature, cet ancre présentant un anneau pour le passage d'un crochet, cette ancre d'arrimage étant caractérisée en ce que l'ancre d'arrimage est conformée à partir d'un profilé plat plié pour former un L, la branche verticale du L For this purpose, the invention relates to a securing anchor intended to equip a reinforced concrete plate with an armature, this anchor having a ring for the passage of a hook, this anchor being characterized in that the lashing anchor is shaped from a folded flat section to form an L, the vertical leg of the L
25 présentant l'anneau et la branche horizontale du L comprenant des moyens d'accrochage provisoire de ce L avec l'armature de la plaque en béton armé. L'invention sera bien comprise à l'aide de la description ci-après faite à titre d'exemple non limitatif en regard du dessin qui représente 25 having the ring and the horizontal arm of the L comprising means for temporarily fastening this L with the reinforcement of the reinforced concrete plate. The invention will be better understood using the following description given by way of non-limiting example with reference to the drawing which represents
FIG 1 : Coupe d'une plaque en béton armé avec une ancre d'arrimage FIG 1: Cutting of a reinforced concrete plate with a tie-down anchor
30 FIG 2 : vue de dessus de deux ancres formées à partir d'un profilé. FIG. 2 is a top view of two anchors formed from a profile.
En se reportant au dessin, on voit une ancre d'arrimage 1 destinée à équiper une plaque 2 en béton armé d'une armature 3. Par armature on comprendra un treillis soudé ou des tiges d'acier haute adhérence ou encore des fils de précontrainte. Referring to the drawing, we see a lashing anchor 1 intended to equip a plate 2 of reinforced concrete with a frame 3. By reinforcement will be understood a welded mesh or high-adhesion steel rods or preloading son .
Plus précisément, cette ancre d'arrimage sera utilisée notamment pour la fixation provisoire d'un montant servant de garde-corps temporaire pour la protection contre les chutes il ne peut cependant être exclu qu'elle trouve d'autres applications. Pour l'accrochage de ce montant de garde corps, l'ancre d'arrimage présente un oeil ou anneau 4 pour le passage d'un crochet. More specifically, this lashing anchor will be used in particular for the temporary fixing of an amount serving as temporary guardrail for protection against falls it can however be excluded that it finds other applications. For the attachment of this amount of railing, the docking anchor has an eye or ring 4 for the passage of a hook.
Selon une caractéristique, l'ancre d'arrimage est conformée à partir d'un profilé plat plié pour former un L, la branche verticale lA du L présentant l'anneau et la branche horizontale 1B du L comprenant des moyens 5,6 d'accrochage provisoire de ce L avec l'armature de la plaque en béton armé. Lorsque le béton est coulé, la base de la branche verticale 1A du L est noyée dans le 15 béton ainsi que toute la branche horizontale IB. Les moyens d'accrochage provisoire consistent en un crochet 5 et une patte 6 repliable pour former un second crochet. Ce crochet et cette patte repliable s'accrochent chacun sur un fil de l'armature et de préférence, ce crochet et cette patte sont orientés en des sens opposés en sorte de venir 20 caler longitudinalement la branche horizontale 1B. Le crochet 5 des moyens d'accrochage provisoire est obtenu par la découpe d'un linguet effectuée dans la branche horizontale. Ce linguet est mis en forme en fonction du diamètre du fil constituant le treillis de sorte à venir s'agripper élastiquement sur le fil. 25 Ce crochet 5 sera en sailli par rapport à la face supérieure de la branche horizontale. Ainsi, il sera obligatoire de positionner la branche horizontale sous l'armature évitant ainsi l'arrachement du ancre. La patte 6 pliable se situe à l'extrémité libre de la branche horizontale 1B et est obtenue par réduction locale de la largeur du profilé plat. 30 Cette réduction locale de largeur sera relativement importante de manière à faciliter le pliage de cette patte par exemple uniquement avec le pousse et l'index. According to one characteristic, the lashing anchor is shaped from a folded flat section to form an L, the vertical leg L of the L having the ring and the horizontal branch 1B of the L comprising means 5, 6 of temporary attachment of this L with the reinforcement of the reinforced concrete plate. When the concrete is poured, the base of the vertical branch 1A of the L is embedded in the concrete as well as the entire horizontal branch IB. The temporary attachment means consist of a hook 5 and a tab 6 foldable to form a second hook. This hook and this foldable lug each hook on a wire of the armature and preferably, this hook and this lug are oriented in opposite directions so as to wedge longitudinally the horizontal leg 1B. The hook 5 of the temporary attachment means is obtained by cutting a pawl made in the horizontal branch. This latch is shaped according to the diameter of the wire constituting the lattice so as to come and hold elastically on the wire. This hook 5 will protrude from the upper face of the horizontal branch. Thus, it will be mandatory to position the horizontal branch under the armature thus avoiding tearing of the anchor. The foldable tab 6 is located at the free end of the horizontal branch 1B and is obtained by locally reducing the width of the flat profile. This local reduction in width will be relatively large so as to facilitate the folding of this tab for example only with the shoot and the index finger.
Par exemple, pour une largeur de cinquante millimètres du profilé plat, la largeur de la patte sera de trois millimètres Des perforations 7 sont éventuellement prévues dans la branche horizontale 1B pour l'accrochage dans le béton. For example, for a width of fifty millimeters of the flat profile, the width of the leg will be three millimeters perforations 7 are optionally provided in the horizontal branch 1B for attachment in the concrete.
Ainsi après mise en place de l'armature dans le coffrage, il suffit de glisser la branche horizontale du L sous l'armature selon un déplacement unidirectionnel et de l'accrocher avec le crochet 5 sur un fil d'armature. On replie ensuite la patte 6 pliable vers la branche verticale en l'accrochant sur un autre fil de l'armature. La longueur de cette patte repliable permet d'utiliser cette ancre d'arrimage sur des 10 armatures de pas différents. L'extrémité libre 6A de cette patte sera légèrement plus large, par exemple, pour la préhension. L'oeil ou l'anneau 4 est obtenu en formant une lumière 4 dans la branche verticale, de préférence allongée. 15 De préférence, cette lumière 4 est bordée au moins partiellement par une nervure 8, notamment en sa partie supérieure. Thus, after placing the reinforcement in the formwork, it is sufficient to slide the horizontal leg of the L under the frame in a unidirectional movement and to hang it with the hook 5 on a reinforcement wire. Folding leg 6 is then folded towards the vertical leg by hanging on another wire of the frame. The length of this folding lug makes it possible to use this lashing anchor on frames of different pitch. The free end 6A of this leg will be slightly wider, for example, for gripping. The eye or ring 4 is obtained by forming a lumen 4 in the vertical branch, preferably elongated. Preferably, this lumen 4 is bordered at least partially by a rib 8, in particular at its upper part.
Cette nervure 8 est, par exemple obtenue, par déformation du métal à l'aide d'une presse. De préférence, l'épaisseur du profilé plat et sa largeur sont déterminées pour permettre 20 de plier le profilé à l'aide de la seule force musculaire d'un homme. This rib 8 is, for example obtained by deformation of the metal using a press. Preferably, the thickness of the flat profile and its width are determined to allow the profile to be bent using only the muscle force of a man.
Cela est intéressant car, pour le transport, la partie émergente de la branche verticale peut être repliée contre la face supérieure de la plaque de sorte à ne pas gêner l'empilement des plaques puis remise en place dans un plan perpendiculaire à cette face supérieure. This is interesting because, for transport, the emergent portion of the vertical branch can be folded against the upper face of the plate so as not to interfere with the stacking of the plates and then put in place in a plane perpendicular to this upper face.
25 Comme on peut le voir sur la figure 2, on a conçu l'ancre d'arrimage pour limiter les pertes lors du façonnage à partir d'un profilé plat du commerce. On voit qu'à partir d'un profilé plat, on obtient deux ancres d'ancrage tête-bêche. Le haut de la branche verticale est de largeur maximale et c'est dans cette zone que l'on forme la lumière pour l'anneau. 30 Une première réduction de largeur est constatée sur la base de la branche verticale et le début de la branche horizontale. As can be seen in FIG. 2, the lashing anchor has been designed to limit losses during shaping from a commercial flat profile. We see that from a flat profile, we obtain two anchors anchor head-to-tail. The top of the vertical branch is of maximum width and it is in this area that we form the light for the ring. A first width reduction is found on the basis of the vertical leg and the beginning of the horizontal leg.
C'est dans cette zone de la branche horizontale que se forme le crochet 5. Une seconde réduction de largeur est constatée sur cette branche horizontale et où sont localisées les perforations. Une troisième réduction de largueur forme la patte 6 repliable. It is in this zone of the horizontal branch that the hook 5 is formed. A second reduction in width is noted on this horizontal branch and where the perforations are located. A third reduction of width forms the foldable leg 6.
L'ancre d'arrimage comprend donc une première zone de largueur maximale, une deuxième zone de largeur plus réduite, une troisième zone de largeur plus réduite que la deuxième zone et une quatrième zone de largeur plus réduite que la troisième zone. En position tête bêche la quatrième zone d'une ancre d'ancrage se positionne au niveau de la deuxième zone de l'autre ancre d'arrimage, les troisièmes zones au même niveau. Techniquement, on utilisera de l'acier doux suivant les normes en vigueur tel la norme NF P 93 340. Une telle ancre d'arrimage se distingue nettement du système ancien fait à partir d'une tige de section circulaire. The docking anchor therefore comprises a first zone of maximum width, a second zone of smaller width, a third zone of smaller width than the second zone and a fourth zone of smaller width than the third zone. In the head-to-tail position, the fourth zone of an anchor anchor is positioned at the second zone of the other anchor, the third zones at the same level. Technically, mild steel will be used according to the standards in force, such as standard NF P 93 340. Such an anchor is clearly distinguished from the old system made from a rod of circular section.
Il n'a pas besoin de moyen annexe pour fixer l'ancre d'arrimage et il oblige l'utilisateur à le positionner correctement. It does not need ancillary means for securing the docking anchor and it forces the user to position it properly.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0601496A FR2897627B1 (en) | 2006-02-21 | 2006-02-21 | STACKING ANCHOR FOR EQUIPPING A PLATE OF CONCRETE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0601496A FR2897627B1 (en) | 2006-02-21 | 2006-02-21 | STACKING ANCHOR FOR EQUIPPING A PLATE OF CONCRETE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2897627A1 true FR2897627A1 (en) | 2007-08-24 |
| FR2897627B1 FR2897627B1 (en) | 2008-04-18 |
Family
ID=37560822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0601496A Expired - Fee Related FR2897627B1 (en) | 2006-02-21 | 2006-02-21 | STACKING ANCHOR FOR EQUIPPING A PLATE OF CONCRETE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2897627B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2075392A1 (en) | 2007-12-24 | 2009-07-01 | Echo | Prefabricated concrete element |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166250A (en) * | 1965-05-10 | 1969-10-08 | Rawplug Company Ltd | Anchoring Device. |
| DE1684450A1 (en) * | 1966-03-15 | 1971-04-08 | Willi Schwenger | Lifting device for lifting heavy parts, in particular precast concrete parts, and a method for producing part of the lifting device |
| EP0500029A2 (en) * | 1991-02-21 | 1992-08-26 | Siegfried Fricker | Flat steel concrete anchor for precast concrete parts |
| DE29808394U1 (en) * | 1997-05-13 | 1998-08-27 | Hermanns, Heinz-Werner, 67346 Speyer | Transport anchor for embedding in cellular concrete panels or the like. |
| FR2871827A1 (en) * | 2004-06-18 | 2005-12-23 | Ingenierie Et Commercialisatio | Balustrade hooking stud for building, has locking bar extending along direction orthogonal to vertical axis for retaining stud in vertical axial hole, and actuation unit cooperating with bar for controlling pivoting of bar |
| BE1016424A6 (en) * | 2005-01-24 | 2006-10-03 | Echo | Lifting hook for prefabricated reinforced concrete slab, comprises U shaped loop section and cross direction part for positioning beneath slab reinforcing structure |
-
2006
- 2006-02-21 FR FR0601496A patent/FR2897627B1/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166250A (en) * | 1965-05-10 | 1969-10-08 | Rawplug Company Ltd | Anchoring Device. |
| DE1684450A1 (en) * | 1966-03-15 | 1971-04-08 | Willi Schwenger | Lifting device for lifting heavy parts, in particular precast concrete parts, and a method for producing part of the lifting device |
| EP0500029A2 (en) * | 1991-02-21 | 1992-08-26 | Siegfried Fricker | Flat steel concrete anchor for precast concrete parts |
| DE29808394U1 (en) * | 1997-05-13 | 1998-08-27 | Hermanns, Heinz-Werner, 67346 Speyer | Transport anchor for embedding in cellular concrete panels or the like. |
| FR2871827A1 (en) * | 2004-06-18 | 2005-12-23 | Ingenierie Et Commercialisatio | Balustrade hooking stud for building, has locking bar extending along direction orthogonal to vertical axis for retaining stud in vertical axial hole, and actuation unit cooperating with bar for controlling pivoting of bar |
| BE1016424A6 (en) * | 2005-01-24 | 2006-10-03 | Echo | Lifting hook for prefabricated reinforced concrete slab, comprises U shaped loop section and cross direction part for positioning beneath slab reinforcing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2075392A1 (en) | 2007-12-24 | 2009-07-01 | Echo | Prefabricated concrete element |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2897627B1 (en) | 2008-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20131031 |