EP0141465A2 - Méthode pour construire une fondation et unité de coffrage pour l'application de ladite méthode - Google Patents

Méthode pour construire une fondation et unité de coffrage pour l'application de ladite méthode Download PDF

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Publication number
EP0141465A2
EP0141465A2 EP84201554A EP84201554A EP0141465A2 EP 0141465 A2 EP0141465 A2 EP 0141465A2 EP 84201554 A EP84201554 A EP 84201554A EP 84201554 A EP84201554 A EP 84201554A EP 0141465 A2 EP0141465 A2 EP 0141465A2
Authority
EP
European Patent Office
Prior art keywords
shuttering
shuttering unit
foundation
excavation
walls
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
Application number
EP84201554A
Other languages
German (de)
English (en)
Other versions
EP0141465B1 (fr
EP0141465A3 (en
Inventor
Lambertus Wittenberg
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.)
Dow Chemical Nederland BV
Original Assignee
Dow Chemical Nederland BV
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 Dow Chemical Nederland BV filed Critical Dow Chemical Nederland BV
Publication of EP0141465A2 publication Critical patent/EP0141465A2/fr
Publication of EP0141465A3 publication Critical patent/EP0141465A3/en
Application granted granted Critical
Publication of EP0141465B1 publication Critical patent/EP0141465B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/10—Deep foundations
    • E02D27/12—Pile foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/01—Flat foundations
    • E02D27/02—Flat foundations without substantial excavation

Definitions

  • This invention relates to a method of building a foundation, comprising making an excavation for such foundation, building the foundation shuttering and arranging a reinforcement therein, pouring concrete and subsequently allowing the same to harden, and filling up the excavation.
  • a prefabricated shuttering unit provided with reinforcement can be manufactured in a suitable space so that lay-offs due to bad weather are avoided.
  • the shuttering unit can be transported from the place of manufacture to the building site, and placed in the excavation.
  • the excavation itself can thus be made smaller, because no erection work needs to be done for the foundation shuttering and the reLnSrcement in such excavation or trench.
  • the prefabricated shuttering unit is a permanent shuttering, which is left in the ground after the concrete has been poured, the excavation can be filled up before pouring the concrete, so that the excavation of smaller dimensions in addition needs to be dewatered for a short period of time only.
  • the concrete is hardened in insulated surroundings, which is an additional advantage in particular in highly corrosive conditions.
  • the shuttering material for example, polystyrene foam
  • the concrete is hardened in insulated surroundings, which is an additional advantage in particular in highly corrosive conditions.
  • a good floor insulation can be obtained. Filling up the excavation before the concrete is poured, further gives the advantage that the backfill provides the necessary counterpressure to the concrete, so that such counter-pressure need not exclusively be provided by the rigid walls of the shuttering or by struts placed against such walls.
  • the invention further relates to a shuttering unit for the application of the method.
  • This shuttering unit comprises a box structure having four dimensionally stable walls and a bottom, as well as a reinforcement cage accommodated therein, and secured by means of spacer members in spaced relationship to the wall and the bottom.
  • the horizontal stiffness between the four walls of the shuttering and the spacer members and reinforcement cage placed therein is preferably produced by winding bracing wire around the four walls.
  • the vertical stiffness between the walls and the bottom can be realized in the same way.
  • at least one rigid strip is placed on top of the shuttering unit, which strip is connected with the bottom of the shuttering unit by means of bracing wires.
  • any material of sufficient dimensional stability can in principle be used.
  • the walls and the bottom are formed of polystyrene foam. Because, when a box structure of polystyrene foam is wound, the bracing wires could cut through the foam, when polystyrene foam is used compression pieces are arranged at the corners of the walls, around which corner pieces the bracing wires are wound.
  • the shuttering unit may have a uniform diameter, but alternatively is stepped in the direction of its height, decreasing in diameter upwardly. Such a shape is used in casting the base of a column.
  • the shuttering unit comprises a reinforcement cage 4, commonly made of conventional reinforcement rods and interconnected to produce the desired dimensional stability.
  • a reinforcement cage 4 commonly made of conventional reinforcement rods and interconnected to produce the desired dimensional stability.
  • spacer members 5 are provided and connected in a suitable manner to the reinforcing rods of cage 4.
  • the spacer members 5 are preferably made of cement concrete or synthetic plastics material.
  • Placed in contact with spacer members 5 are four shuttering panels 2, serving as sidewalls, and possibly a bottom 3.
  • the material for sidewalls 2 and bottom 3 can be selected from many suitable kinds of material, naturally taking into account that the shuttering unit 1 is used as a permanent shuttering.
  • bracing wires 6,6' preferably galvanized metal wire, or synthetic plastics material, by means of which the shuttering unit 1 built up from loose parts is connected to form a transportable unit.
  • bracing wires 6' can be arranged horizontally in two mutually perpendicular directions, and extend transversely through the reinforcement cage 4. Bracing wires 6' extend through two bracing wires 6'
  • bracing wires may alternatively be wound around shuttering unit 1.
  • the bracing wires are preferably straps of synthetic plastics material as frequently used in the packing industry. Fig. 1 shows both possibilities. If the material of the sidewalls is sufficiently pressure-resistant, or if plastics straps are used as the bracing wires, bracing wires 6 may be wound direct around the sidewalls. When, for example, polystyrene foam is used, it is necessary to use compression pieces 7, for example of wood, to prevent the bracing wires 6 from cutting into the material of sidewalls 2.
  • sidewalls 2 may be directly fixed to spacers 5, which are provided for the purpose with outwardly projecting pins extending through sidewalls 2, and on which a clamping member can be shifted which presses sidewall 2 into contact with the spacers.
  • the shuttering unit 1 is provided with a bottom 3, the latter is fixed by means of vertically extending bracing wires 6".
  • the bottom 3 is preferably provided with a peripheral groove 3' (Fig. 2) for receiving the sidewalls 2 therein, thereby supporting the sidewalls 2 and preventing the movement of the bottom 3 relative to the sidewalls 2.
  • the top ends of these bracing wires 6" may be secured, for example, to the top reinforcing rods of cage 4, or to a strip 9 supported on sidewalls 2, which strip may be of cruciform shape (Fig. 2). Owing to the use of the bracing wires or straps 6,6', sidewalls 2, bottom 3 and reinforcing cage 4 form a stable whole. The use of an adhesive for interconnecting walls, bottom and spacer members is therefore unnecessary. When the shuttering unit has been placed in position in an excavation, strip 9 can be removed for re-use.
  • the bottom 3 of the shuttering unit may be omitted. In that case there is employed a working floor of lean concrete, poured in situ on the bottom of the excavation.
  • Fig. 2 shows the shuttering unit 1 of Fig. 1 in the dug-in .. position.
  • the excavation 8 in the bottom is indicated in ghost outline.
  • the excavation 8 need not be much larger than the dimensions of the shuttering unit. After the shuttering unit 1 has been placed in position in the excavation, the latter is filled up again. Subsequently, concrete is poured into the interior of the shuttering unit 1, with the backfill in the excavation 8.providing for sufficient couter- pressure on the side'walls of shuttering unit 1, as indicated by arrows in Fig. 2. After the casting of the concrete, the top of the shuttering unit 1 may, if desired, be covered to cause the concrete to harden more rapidly.
  • Fig. 3 illustrates an example of a shuttering unit according to the invention, in this case for casting a pile head.
  • the shuttering unit 11 is placed on a pile 10 rammed or screwed into the ground.
  • the bottom of the shuttering unit 11 is formed with an aperture 12 to permit slipping the bottom over the head of pile 10.
  • Fig. 4 diagrammatically shows a stepped shuttering unit 13 suitable for casting the base of a column.
  • Shuttering unit 13 comprises a wider lower portion 14 and a superimposed portion 15 of smaller diameter.
  • the method according to the invention must be carried out at least partially twice over.
  • the excavation is filled up to the rim of the lower portion 14 only, whereafter this lower portion 14 is filled up with concrete.
  • the top portion 15 of the shuttering unit 13 has then preferably been detached from the lower portion 14.
  • the portion 15 of the shuttering unit 13 is placed around the reinforcement cage for the top part, whereafter the excavation can be fully filled up with the bottom material. Subsequently, the portion 15 is filled with concrete.
  • the shuttering unit 13 for a column base as shown diagrammatically in Fig. 4 is shown more clearly in perspective view in Fig. 5.
  • the method according to the invention can be used with advantage in making floor foundations for housing.
  • An example for such a construction is shown diagrammatically in Fig. 6.
  • the foundation beam extends perpendicular to the plane of the page and rests on a plurality of piles 16 rammed or screwed into the bottom in a suitable manner.
  • Designated by 18 is the reinforcement cage for the foundation beam, surrounded by walls 17 of polystyrene foam, which in this case is preferred for its insulating properties.
  • the spacer members provided between walls 17 and reinforcement cage 18 are not shown in the drawing.
  • Designated by 22 is a reinforced concrete floor - the ground floor - which is perpendicular to the main foundation beam. Shown at 19 is an outer wall bearing on foundation beam 17,18, and at 20 an inner wall, with a polystyrene foam layer 21 being provided in the gap between the two walls 19,20 by way of insulation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Foundations (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP84201554A 1983-11-04 1984-10-30 Méthode pour construire une fondation et unité de coffrage pour l'application de ladite méthode Expired - Lifetime EP0141465B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8303813 1983-11-04
NL8303813 1983-11-04

Publications (3)

Publication Number Publication Date
EP0141465A2 true EP0141465A2 (fr) 1985-05-15
EP0141465A3 EP0141465A3 (en) 1986-06-11
EP0141465B1 EP0141465B1 (fr) 1990-01-17

Family

ID=19842664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201554A Expired - Lifetime EP0141465B1 (fr) 1983-11-04 1984-10-30 Méthode pour construire une fondation et unité de coffrage pour l'application de ladite méthode

Country Status (5)

Country Link
EP (1) EP0141465B1 (fr)
DE (1) DE3481071D1 (fr)
DK (1) DK159559C (fr)
FI (1) FI844237L (fr)
NO (1) NO165410C (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581678A1 (fr) * 1985-05-07 1986-11-14 Brami Max Procede pour la realisation d'une structure en beton arme noyee dans le sol
FR2602529A1 (fr) * 1986-08-06 1988-02-12 Foulcher Louis Dispositif de coffrage perdu en polyester pour fondation
GB2216153A (en) * 1988-03-25 1989-10-04 Roydon John Chute Thompson Permanent shuttered in situ beam foundation system
GB2240350A (en) * 1989-10-11 1991-07-31 Imer Forming foundation beams
NL1006527C2 (nl) * 1997-07-10 1999-01-12 Univ Eindhoven Tech Werkwijze voor het vervaardigen van een fundering en bij deze werkwijze toepasbare betonplaat.
EP1103663A1 (fr) * 1999-11-27 2001-05-30 Cementation Foundations Skanska Limited Poutre de couronnement pour pieux
WO2004081296A1 (fr) * 2003-03-12 2004-09-23 Ultraframe (Uk) Limited Base destinee a une structure de construction

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29602796U1 (de) * 1996-02-16 1996-04-25 WACON GmbH, 99706 Sondershausen Bauelement für Frostschürze und für Mauerkrone
CN108643213B (zh) * 2018-05-18 2020-07-28 中交路桥华南工程有限公司 水下承台施工结构的施工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7012628A (en) * 1970-08-26 1972-02-29 Foam plastics shuttering - for moulding concrete
US3848377A (en) * 1973-02-09 1974-11-19 M Mori Mat foundation
US4125980A (en) * 1976-12-30 1978-11-21 Miraldi Robert V Foundation, method of constructing same and parts useable therein
US4409764A (en) * 1976-08-02 1983-10-18 Ennis H. Proctor System and method for reinforced concrete construction
DE3215579A1 (de) * 1982-04-27 1983-10-27 Dahmit Betonwerke GmbH, 8000 München Verlorene schalung fuer fundamente

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7012628A (en) * 1970-08-26 1972-02-29 Foam plastics shuttering - for moulding concrete
US3848377A (en) * 1973-02-09 1974-11-19 M Mori Mat foundation
US4409764A (en) * 1976-08-02 1983-10-18 Ennis H. Proctor System and method for reinforced concrete construction
US4125980A (en) * 1976-12-30 1978-11-21 Miraldi Robert V Foundation, method of constructing same and parts useable therein
DE3215579A1 (de) * 1982-04-27 1983-10-27 Dahmit Betonwerke GmbH, 8000 München Verlorene schalung fuer fundamente

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581678A1 (fr) * 1985-05-07 1986-11-14 Brami Max Procede pour la realisation d'une structure en beton arme noyee dans le sol
FR2602529A1 (fr) * 1986-08-06 1988-02-12 Foulcher Louis Dispositif de coffrage perdu en polyester pour fondation
EP0256959A1 (fr) * 1986-08-06 1988-02-24 Louis Foulcher Dispositif de coffrage perdu en polyester pour fondation
GB2216153A (en) * 1988-03-25 1989-10-04 Roydon John Chute Thompson Permanent shuttered in situ beam foundation system
GB2240350A (en) * 1989-10-11 1991-07-31 Imer Forming foundation beams
NL1006527C2 (nl) * 1997-07-10 1999-01-12 Univ Eindhoven Tech Werkwijze voor het vervaardigen van een fundering en bij deze werkwijze toepasbare betonplaat.
EP1103663A1 (fr) * 1999-11-27 2001-05-30 Cementation Foundations Skanska Limited Poutre de couronnement pour pieux
WO2004081296A1 (fr) * 2003-03-12 2004-09-23 Ultraframe (Uk) Limited Base destinee a une structure de construction
GB2399358B (en) * 2003-03-12 2006-07-05 Ultraframe Uk Ltd Base for a building structure

Also Published As

Publication number Publication date
DE3481071D1 (de) 1990-02-22
NO844241L (no) 1985-05-06
FI844237L (fi) 1985-05-05
DK159559B (da) 1990-10-29
DK523184A (da) 1985-05-05
DK159559C (da) 1991-04-08
NO165410C (no) 1991-02-06
FI844237A0 (fi) 1984-10-29
NO165410B (no) 1990-10-29
DK523184D0 (da) 1984-11-02
EP0141465B1 (fr) 1990-01-17
EP0141465A3 (en) 1986-06-11

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