EP1039038A1 - Dispositif d'aide au décoffrage - Google Patents
Dispositif d'aide au décoffrage Download PDFInfo
- Publication number
- EP1039038A1 EP1039038A1 EP00400601A EP00400601A EP1039038A1 EP 1039038 A1 EP1039038 A1 EP 1039038A1 EP 00400601 A EP00400601 A EP 00400601A EP 00400601 A EP00400601 A EP 00400601A EP 1039038 A1 EP1039038 A1 EP 1039038A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- formwork
- sole
- filling
- consist
- 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
Links
Images
Classifications
-
- 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
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/185—Bulkheads or similar walls made solely of concrete in situ with flexible joint members between sections
Definitions
- the present invention relates to a device for assisting in formwork removal for end joint of wall panels molded.
- each panel a particular shape called a joint, which allows the embedding of one end of a panel in the end of the previous panel.
- the definition of this shape corresponding to the joints is obtained thanks to the placement at the end of the trench in course of digging, of a formwork whose shape allows to obtain the joint of the panel in progress.
- the formwork 12 comprises a sole 14 and a box 16 defining the shape of the joint and, preferably, that a structure 18 allowing the holding and the protection of an element of connection 20 between sealing elements which may be provided in the diaphragm wall.
- the concrete constituting the panel 22 goes around the ends of the flange 14 of the formwork 12 in the lateral zones referenced 24. Part of this concrete can even end up against the external face 14a of the sole 14 as this is shown in 26.
- Figure 1d shows a formwork hand 30. It includes an end 31 for mounting on a machine, an arm 33 intended to pass to side of the lateral edge of the sole 14 and a return 30a intended to be inserted between the internal face 14b of the sole and the concrete to take off the concrete formwork.
- An object of the present invention is to provide a device of formwork assistance for a panel end joint diaphragm wall which allows the use of formwork hands in greatly improved conditions to limit wear and tear on the hands of formwork and increase the speed of the formwork operation.
- the device is characterized in that said plates and said bracing means consist of a stamped metal sheet made up of two wings and a connection portion, in that said means of filling consist of a parallelepiped piece arranged between the wings of the sheet against the connection portion, said means filling being made of a non-susceptible plastic material to be impregnated with concrete.
- the device is characterized in that said wooden plates, said bracing means consist of a wooden cleat fixed between said plates along their first longitudinal edge and in that the filling means consist of a parallelepiped piece disposed between said plates against said cleat, said piece being made of a plastic material which cannot be impregnated with concrete.
- the device is characterized in that said wooden plates, said means bracing consist of wooden cleat elements fixed between said plates along their first longitudinal edge, said cleat elements leaving between them free spaces according to the direction of the longitudinal edge of said plates and in that the means filling consist of parts substantially parallelepiped in a plastic material which cannot be impregnated with concrete, said parts being arranged in the spaces separating the elements of the cleat.
- the means of filling consist of polystyrene. This material presents the advantage of having a low mechanical resistance compared to the hands formwork while preventing filling of the area with concrete disposed between the two plates forming the formwork assistance device.
- FIG. 2 we will describe the principle of the formwork assistance device.
- the formwork 12 with its base 14 the formwork being put in place in trench 10 in which wall panel 22 has already been realized.
- the invention consists in fixing on each edge 34, 36 of the sole 14 a structure with the general reference 40 which will be called formwork relief device.
- This overflowing structure 40 so on each side of the sole 14 inside the trench 16 is constituted by a set of materials which vis-à-vis the hands of formwork has reduced mechanical strength and which, due to its presence, limits the formation of bypass concrete in the area corresponding. This structure will be described later in more detail. with reference to Figures 4 to 6.
- the formwork hands 30 and 32 it is then possible to present at the upper end formwork the formwork hands 30 and 32 so that their arms 33 are opposite the devices 40 and their active parts 32a, 30a are arranged opposite the internal face 14b of the sole.
- the active parts 32a and 30a of the hands formwork gradually causing the spacing of the sole 14 and its box 16 relative to the concrete 22 filling the portion of trench.
- the device 40 consists of a stamped sheet 50 which has two substantially parallel and rectangular wings 52 and 54 connected together by a connection portion 55.
- the length of the sheet is substantially equal to that of the base of the formwork.
- the connection portion 55 forms a bracing between the two plates, the distance h between the two wings 52 and 54 is very slightly greater than the thickness of the base of the formwork.
- a substantially rectangular rectangular part 56 is fixed which is applied against the connection portion 55.
- This part 56 is made of a plastic material which cannot be impregnated with concrete, such as polystyrene.
- the stamped sheet 50 has a thickness of the order of 4 to 6/10 th of a millimeter. It is understood as shown better in Figure 4b that the area occupied by the part 56 constitutes an area with reduced mechanical strength into which the formwork hand can easily penetrate. It goes without saying that the width f of the part 56 must be greater than the width I of the arms 33 of the formwork hand.
- FIG. 5a and 5b we will describe a second embodiment of the device 40 for formwork assistance.
- This device consists of two wooden planks 60 and 62 of substantially rectangular shape, the first two edges 60a, 62a of which are connected together by a wooden cleat 64 acting as a spacer to keep the two planks 60 and 62 substantially parallel. with a distance h corresponding to the thickness of the footing of the formwork.
- a piece 66 of substantially rectangular parallelepiped shape is disposed between the boards 60 and 62 and against the cleat 64.
- This piece 66, of width f is made of a plastic material which cannot be impregnated with concrete such as polystyrene.
- the volume constituted by the parts 66 constitutes on either side of the sole 14 a zone of limited mechanical resistance into which the stripping hand can easily penetrate.
- Figures 6a and 6b illustrate a third embodiment of the device 40 for formwork assistance.
- the device 40 is also constituted by two wooden planks 70 and 72 substantially rectangular which are connected together by wooden cleat elements such as 74 which thus form spacers to hold between the planks 70 and 72 a spacing h .
- cleat elements 74 fixed near the first edge of the boards 70 and 72 are provided spaces such as 76 in which are fixed pieces 78 made of a material with low mechanical resistance such as polystyrene.
- FIG. 6b there is thus an alternation of cleat elements 74 and parts, for example made of polystyrene, 78 arranged parallel to the first edge of the boards 70 and 72.
- This assembly generally constitutes a zone with reduced mechanical resistance of width f which can be easily penetrated by the formwork hands.
- the area 79 which remains empty between the boards 70 and 72 and which has a length d serves to receive a lateral portion of the sole 14 of the formwork.
- FIGs 7 and 8 show two possible methods of attachment formwork assistance devices 40 on the sole 14.
- the device is fixed by ligatures made using annealed wires 80 which pass through holes 82 drilled in the sole 14 near its edge 36.
- the device 40 is fixed on the edge 36 of the sole 14 using metal stirrups 84 which surround the device 34 and the ends 86 of which are welded to the internal faces outsole 14.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
- deux plaques sensiblement rectangulaires et sensiblement de mêmes dimensions,
- des moyens d'entretoisement solidaires d'un premier bord longitudinal desdites plaques pour maintenir celles-ci sensiblement parallèles entre elles avec un écartement h sensiblement égal à l'épaisseur de la semelle du coffrage,
- des moyens de remplissage pour remplir le volume limité par lesdites plaques, les moyens d'entretoisement et un plan orthogonal auxdites plaques disposé à une distance d des deuxièmes bords longitudinaux des plaques, par quoi l'espace entre lesdites plaques dépourvu de moyens de remplissage est apte à recevoir une portion latérale de la semelle d'un coffrage, lesdits moyens de remplissage étant réalisés avec un matériau à faible résistance mécanique ; et
- des moyens de fixation temporaire desdites plaques sur ladite semelle.
Claims (7)
- Dispositif (40) d'aide au décoffrage d'un coffrage (12) pour joint d'extrémité de panneau de paroi moulée (22), ledit coffrage comprenant une semelle (14) présentant une face externe, une face interne équipée d'un caisson (16) et deux bords latéraux (34, 36), ledit caisson laissant libre sur la face interne de la semelle deux zones latérales (24) à proximité desdits bords, ledit dispositif se caractérisant en ce qu'il comprend :deux plaques sensiblement rectangulaires (52, 54, 60, 62, 70, 72) et sensiblement de mêmes dimensions,des moyens d'entretoisement (55, 64, 74) solidaires d'un premier bord longitudinal desdites plaques pour maintenir celles-ci sensiblement parallèles entre elles avec un écartement h sensiblement égal à l'épaisseur de la semelle d'un coffrage,des moyens de remplissage (56, 66, 78) pour remplir le volume limité par lesdites plaques, les moyens d'entretoisement et un plan orthogonal auxdites plaques disposé à une distance d des deuxièmes bords longitudinaux des plaques, par quoi l'espace entre lesdites plaques dépourvu de moyens de remplissage est apte à recevoir une portion latérale de la semelle d'un coffrage, lesdits moyens de remplissage étant réalisés avec un matériau à faible résistance mécanique ; etdes moyens de fixation temporaire (80, 84) desdites plaques sur ladite semelle.
- Dispositif selon la revendication 1, caractérisé en ce que lesdites plaques (52, 54) et lesdits moyens d'entretoisement (55) sont constitués par une tôle métallique (50) emboutie constituée de deux ailes et d'une portion de raccordement, en ce que lesdits moyens de remplissage sont constitués par une pièce parallélépipédique (56) disposée entre les ailes de la tôle contre la portion de raccordement, lesdits moyens de remplissage étant réalisés en un matériau plastique non susceptible d'être imprégné par du béton.
- Dispositif selon la revendication 1, caractérisé en ce que lesdites plaques (60, 62) sont réalisées en bois, en ce que lesdits moyens d'entretoisement sont constitués par un tasseau (64) en bois fixé entre lesdites plaques le long de leur premier bord longitudinal et en ce que les moyens de remplissage sont constitués par une pièce parallélépipédique (66) disposée entre lesdites plaques contre ledit tasseau, ladite pièce étant réalisée en un matériau plastique non susceptible d'être imprégné par du béton.
- Dispositif selon la revendication 1, caractérisé en ce que lesdites plaques (70, 72) sont réalisées en bois, en ce que lesdits moyens d'entretoisement sont constitués par des éléments de tasseau en bois (74) fixés entre lesdites plaques le long de leur premier bord longitudinal, lesdits éléments de tasseau laissant entre eux des espaces libres (76) selon la direction du bord longitudinal desdites plaques et en ce que les moyens de remplissage sont constitués par des pièces sensiblement parallélépipédiques (78) en un matériau plastique non susceptible d'être imprégné par du béton, lesdites pièces étant disposées dans les espaces séparant les éléments du tasseau.
- Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les moyens de remplissage (56, 66, 78) sont réalisés en polystyrène.
- Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les moyens de fixation temporaire consistent en des fils de fer (80) entourant lesdites plaques et traversant des trous percés dans la semelle du coffrage (14).
- Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les moyens de fixation temporaire consistent en des étriers métalliques (84) qui entourent lesdites plaques et dont les extrémités libres sont soudées sur les faces interne et externe de la semelle (14) du coffrage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9903428A FR2791072B1 (fr) | 1999-03-19 | 1999-03-19 | Dispositif d'aide au decoffrage |
FR9903428 | 1999-03-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1039038A1 true EP1039038A1 (fr) | 2000-09-27 |
EP1039038B1 EP1039038B1 (fr) | 2003-05-28 |
Family
ID=9543396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00400601A Expired - Lifetime EP1039038B1 (fr) | 1999-03-19 | 2000-03-07 | Dispositif d'aide au décoffrage |
Country Status (14)
Country | Link |
---|---|
US (1) | US6332297B1 (fr) |
EP (1) | EP1039038B1 (fr) |
KR (1) | KR100812845B1 (fr) |
CN (1) | CN1132979C (fr) |
AR (1) | AR022962A1 (fr) |
AT (1) | ATE241737T1 (fr) |
CA (1) | CA2301495C (fr) |
DE (1) | DE60002936T2 (fr) |
ES (1) | ES2198258T3 (fr) |
FR (1) | FR2791072B1 (fr) |
HK (1) | HK1030034A1 (fr) |
MX (1) | MXPA00002744A (fr) |
SG (1) | SG91260A1 (fr) |
TW (1) | TW544483B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020002836A1 (fr) | 2018-06-27 | 2020-01-02 | Soletanche Freyssinet | Element de coffrage muni de profiles sacrificiels |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102943563A (zh) * | 2012-11-13 | 2013-02-27 | 龙岩市弘林硬质合金有限公司 | 用于建筑工程铝模板的拔模器 |
DE102020202011A1 (de) | 2020-02-18 | 2021-08-19 | Gud Geotechnik Und Dynamik Consult Gmbh | Fugenelement sowie Verfahren |
CN111663777A (zh) * | 2020-07-22 | 2020-09-15 | 浙江省工程物探勘察设计院有限公司 | 一种建筑用模板清理装置及使用方法 |
CN113006478B (zh) * | 2021-03-08 | 2022-02-08 | 中建二局第三建筑工程有限公司 | 一种易拆模的现浇墙体沟槽模具及浇筑方法 |
CN114961227B (zh) * | 2022-06-07 | 2023-07-11 | 中建八局第一建设有限公司 | 一种可周转式悬挑工字钢预埋装置及其实现方式 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61257530A (ja) * | 1985-05-10 | 1986-11-15 | Ohbayashigumi Ltd | 地中連続壁工法 |
EP0462010A1 (fr) * | 1990-06-15 | 1991-12-18 | Bouygues | yispositif pour faciliter l'extraction d'un coffrage, et application à la réalisation d'une paroi moulée dans le sol. |
CH679790A5 (en) * | 1989-05-09 | 1992-04-15 | Fehlmann Travaux Hydrauliques | Shutter panel for concrete ground wall construction - water-bar used for joints between adjacent wall sections acting as slide to facilitate panel stripping |
GB2315803A (en) * | 1996-07-31 | 1998-02-11 | Gammon Finance Ltd | Stop - end removal system for use in diaphragm wall construction |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2911702A (en) * | 1955-07-11 | 1959-11-10 | Poliete S Clyncke | Holding devices for form boards and the like |
US3978626A (en) * | 1975-05-14 | 1976-09-07 | Weinar Roger N | Removable wire tie for adhesive applied wallboard installation |
US4112646A (en) * | 1977-02-14 | 1978-09-12 | Clelland John J | Pre-cast insulated wall structure |
US4333290A (en) * | 1979-05-10 | 1982-06-08 | Arizona Diversified Products, Inc. | Structural member for installation system |
FR2613395B1 (fr) | 1987-04-03 | 1991-06-07 | Soletanche | Procede de realisation et coffrage pour joint d'extremite de panneau de paroi moulee |
FR2647828B1 (fr) | 1989-06-06 | 1991-08-30 | Soletanche | Procede et dispositif pour decoller du beton auquel il adhere, un joint d'extremite de panneau de paroi moulee dans le sol |
DE29916663U1 (de) * | 1999-09-22 | 2000-01-05 | Guenter Werner Gmbh Neuheitenv | Viehputzmaschine mit einer rotierenden Bürstenwalze und einer feststehenden Kratzbürste, montiert auf einem in vertikaler Richtung beweglichen Schlitten |
-
1999
- 1999-03-19 FR FR9903428A patent/FR2791072B1/fr not_active Expired - Fee Related
-
2000
- 2000-03-02 SG SG200001151A patent/SG91260A1/en unknown
- 2000-03-07 AT AT00400601T patent/ATE241737T1/de not_active IP Right Cessation
- 2000-03-07 DE DE60002936T patent/DE60002936T2/de not_active Expired - Lifetime
- 2000-03-07 ES ES00400601T patent/ES2198258T3/es not_active Expired - Lifetime
- 2000-03-07 EP EP00400601A patent/EP1039038B1/fr not_active Expired - Lifetime
- 2000-03-08 US US09/520,847 patent/US6332297B1/en not_active Expired - Lifetime
- 2000-03-14 CN CN00102988A patent/CN1132979C/zh not_active Expired - Fee Related
- 2000-03-16 CA CA002301495A patent/CA2301495C/fr not_active Expired - Lifetime
- 2000-03-17 KR KR1020000013746A patent/KR100812845B1/ko not_active IP Right Cessation
- 2000-03-17 AR ARP000101179A patent/AR022962A1/es active IP Right Grant
- 2000-03-17 MX MXPA00002744A patent/MXPA00002744A/es active IP Right Grant
- 2000-05-30 TW TW089104946A patent/TW544483B/zh not_active IP Right Cessation
-
2001
- 2001-02-13 HK HK01101013A patent/HK1030034A1/xx not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61257530A (ja) * | 1985-05-10 | 1986-11-15 | Ohbayashigumi Ltd | 地中連続壁工法 |
CH679790A5 (en) * | 1989-05-09 | 1992-04-15 | Fehlmann Travaux Hydrauliques | Shutter panel for concrete ground wall construction - water-bar used for joints between adjacent wall sections acting as slide to facilitate panel stripping |
EP0462010A1 (fr) * | 1990-06-15 | 1991-12-18 | Bouygues | yispositif pour faciliter l'extraction d'un coffrage, et application à la réalisation d'une paroi moulée dans le sol. |
GB2315803A (en) * | 1996-07-31 | 1998-02-11 | Gammon Finance Ltd | Stop - end removal system for use in diaphragm wall construction |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 011, no. 114 (M - 579) 10 April 1987 (1987-04-10) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020002836A1 (fr) | 2018-06-27 | 2020-01-02 | Soletanche Freyssinet | Element de coffrage muni de profiles sacrificiels |
FR3083250A1 (fr) | 2018-06-27 | 2020-01-03 | Soletanche Freyssinet | Element de coffrage muni de profiles sacrificiels |
US11560684B2 (en) | 2018-06-27 | 2023-01-24 | Soletanche Freyssinet | Formwork element provided with sacrificial sections |
Also Published As
Publication number | Publication date |
---|---|
US6332297B1 (en) | 2001-12-25 |
CA2301495C (fr) | 2006-11-28 |
TW544483B (en) | 2003-08-01 |
ATE241737T1 (de) | 2003-06-15 |
FR2791072A1 (fr) | 2000-09-22 |
FR2791072B1 (fr) | 2001-06-15 |
CN1267769A (zh) | 2000-09-27 |
KR20000071456A (ko) | 2000-11-25 |
EP1039038B1 (fr) | 2003-05-28 |
ES2198258T3 (es) | 2004-02-01 |
DE60002936T2 (de) | 2004-03-25 |
SG91260A1 (en) | 2002-09-17 |
AR022962A1 (es) | 2002-09-04 |
CA2301495A1 (fr) | 2000-09-19 |
KR100812845B1 (ko) | 2008-03-11 |
CN1132979C (zh) | 2003-12-31 |
DE60002936D1 (de) | 2003-07-03 |
MXPA00002744A (es) | 2004-04-21 |
HK1030034A1 (en) | 2001-04-20 |
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