EP1208270B1 - Fondation et procede de production - Google Patents

Fondation et procede de production Download PDF

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Publication number
EP1208270B1
EP1208270B1 EP00953576A EP00953576A EP1208270B1 EP 1208270 B1 EP1208270 B1 EP 1208270B1 EP 00953576 A EP00953576 A EP 00953576A EP 00953576 A EP00953576 A EP 00953576A EP 1208270 B1 EP1208270 B1 EP 1208270B1
Authority
EP
European Patent Office
Prior art keywords
elements
sockets
foundation
fitted
pretensioning
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.)
Expired - Lifetime
Application number
EP00953576A
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German (de)
English (en)
Other versions
EP1208270A1 (fr
Inventor
Hylke Katsma
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.)
Technische Universiteit Delft
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Technische Universiteit Delft
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Application filed by Technische Universiteit Delft filed Critical Technische Universiteit Delft
Publication of EP1208270A1 publication Critical patent/EP1208270A1/fr
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Publication of EP1208270B1 publication Critical patent/EP1208270B1/fr
Anticipated expiration legal-status Critical
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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
    • E02D27/26—Compacting soil locally before forming foundations; Construction of foundation structures by forcing binding substances into gravel fillings
    • 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

Definitions

  • the present invention relates to a foundation comprising a concrete member which extends in the form of a closed curve, which member is provided with a reinforcement, which member is composed of a number of base elements and end elements, each of which, viewed in the vertical direction, is provided with at least two first sockets for receiving tensioning devices, which sockets extend substantially parallel over the full length of that element, and in which tensioning devices are provided, at least the end elements being provided with at least two further sockets which, viewed in the vertical direction, are spaced from each other and extend substantially parallel over the full length of that element, for receiving tensioning devices, and in which tensioning devices are fitted, said further sockets extending at an angle relative to said first sockets, and means fitted on said tensioning devices being present and acting externally upon said elements.
  • Such a foundation is known from Japanese Patent Application 5-306526. After the fitting of supports such as driven piles, a number of blocks are placed in the foundation, on the heads of said piles, in order to act as formwork. The blocks are held together by means of tensioning bars on which tensioning nuts are fitted. Diagonal bars extend in the blocks, which are fitted in a rectangular shape. After such a construction has been produced, the unit is filled up with concrete. Given the high cost of removing formwork, in the prior art such formwork is left integral with the foundation that has been poured.
  • Japanese patent publication 622696016 discloses a corresponding combination, which serves as subsequent formwork.
  • the building serves mainly as protection against the weather, it is made of relatively light material.
  • the building consists solely of a light inside wall and outside wall, for example a metal section between which an insulating layer is placed.
  • the floor often rests on the existing ground, and is not supported on piles.
  • the object of the present invention is to be able to make the foundation of buildings lighter and simpler, also with the possibility of being able to reuse such a foundation.
  • pretensioning members comprise pretensioning cables and that a permanent free space is defined within said elements.
  • Such a foundation is extremely simple to produce, since it is based on prefabricated elements provided with sockets situated at the same level during the assembly. After the elements have been put in position and the pretensioning cables or pretensioning bars have been fitted and tensioned, the foundation in principle is ready for use. This means that such a foundation can be laid in poor weather conditions and there is no need to wait for concrete to set. It has already done so in the factory. Furthermore, the concrete mix can be produced in factory conditions, which is much better than production on site. Unlike the constructions described in the abovementioned Japanese applications, the foundation is ready immediately after the pretensioning of the pretensioning cables. With the pretensioning cables it is possible to apply great pretensioning forces, for example between 60 and 120 tonnes between adjoining elements.
  • the construction according to the invention in principle does not have to be supported on piles.
  • the great pretensioning forces ensure that a stable unit is obtained.
  • the space inside elements erected, for example, in the form of a square is empty after the foundation is complete. In other words, no diagonal tensioning bars or the like extend in it.
  • the element has a substantially T-shaped profile, in which the flange of the T is designed to rest on the bottom of the foundation, in many cases it is no longer necessary to support the construction on piles. After all, such a large bearing face is produced by the flange of the "T" that, possibly after pre-compacting of the ground by laying a reinforcement layer consisting of sand, gravel or the like, sufficient bearing power in the ground can be obtained.
  • any desired foundation can be obtained.
  • the base elements i.e. the "longitudinal elements”
  • corner elements and T-elements virtually any desired foundation can be obtained. It is advantageous here that in the art buildings generally consist of walls positioned at a right angle.
  • pretensioning cables or pretensioning bars are fitted in the sockets under pretension, it is possible to inject the sockets in some way with, for example, a plastic. It is possible to close off the pretensioning means such as the pretensioning anchors in the same way relative to the environment.
  • sockets are not injected, it is possible simply to remove the foundation after use and reuse it. After all, many sheds and the like have a relatively limited life span (typically 10 years) and if the foundation can subsequently be used for another useful purpose or adapted in a simple manner and extended, this will have a cost-saving effect.
  • the invention also relates to a constructional structure such as a building, comprising a foundation and parts such as walls extending therefrom, said foundation being a foundation such as described above, and said parts which extend therefrom being fitted directly connecting thereto.
  • a foundation such as can be produced with the elements according to the invention is indicated in its entirety by 1 in Fig. 1. It consists of a number of base elements 2, a number of corner elements 4, and a number of T-elements 3. As can be seen from Fig. 1, substantially any construction can be obtained with it.
  • a further element which might be important is an element which permits the crossing of two directions, i.e. an element 3 provided with a further projecting part.
  • Figs. 2-4 Details of each of the elements are seen in Figs. 2-4.
  • the elements are all made T-shaped, i.e. provided with a flange 8 with a member 9 placed thereon.
  • the required height is obtained by means of member 9.
  • Sockets 5 for receiving reinforcement bars are provided near the ends of member 9 (viewed in the vertical direction).
  • End elements 3 and 4 are also provided with further sockets 7 for receiving reinforcement bars in a direction at an angle thereto. Sufficient bending stiffness is provided by the height of the members 9.
  • Flanges 8 must be sufficiently extended in the horizontal direction to give good bearing power to the foundation. This makes it possible to erect this foundation even on relatively soft ground without driving piles. It is possible to excavate the ground in advance and place a reinforcing material such as sand, gravel or another bed in it.
  • the foundation described above is constructed by laying elements in the ultimately desired pattern. Driving piles beforehand is not necessary in principle in this case.
  • interacting elements can be provided with a locating system, for example a male-female system.
  • Pretensioning cables 6 are subsequently inserted through the sockets 5 and 7 respectively situated opposite each other, and after fitting nuts 11 on pretensioning cables and the nuts are tightened using a screw jack, the various elements are pressed against each other.
  • the number of pretensioning cables used is such and the force applied to each cable is such that the adjoining elements are pressed against each other with a force lying between 60 and 120 tonnes and over, preferably approximately 100 tonnes. This means preferably a force of approximately 20 tonnes per cable.
  • a sealing compound may, if desired, be placed between the elements, and more particularly between the adjoining sockets 5 and 7 respectively, in order to provide sealing of the sockets 5 and 7 respectively, thus impeding the penetration of moisture and the like.
  • a protective agent can also be placed around the ends of the pretensioning cables 6 and the pretensioning anchors 7 fitted thereon. It can be cast in or poured in if desired.
  • the foundation can be placed under pretensioning in a controlled manner by means of the pretensioning anchors. Since the construction is a closed curve, particularly great stability is obtained. After the measures described above, the foundation is in principle ready and a further constructional structure can be placed on it immediately. In other words, it is not necessary to complete the foundation by pouring.
  • Fig. 5 shows a possibility for producing an element such as that shown in Figs. 2-4.
  • the formwork necessary for this is indicated by 10.
  • reinforcement bars 12 are fitted in it. These reinforcement bars serve to strengthen the elements concerned.
  • Tubes 13 or the like are then fitted, after which the concrete material 14 is poured. The presence of the sockets 5 and 7 is guaranteed by the presence of the tubes 13.
  • Fig. 5 it can be seen from Fig. 5 that such elements can be poured in a particularly expedient manner in factory conditions, using particularly simple formwork. It will be understood that production is consequently possible throughout the year, irrespective of the weather conditions.
  • the elements according to the invention, and more particularly the end elements are relatively compact and can be transported by road. The same applies to the base elements, since their width is not a limiting factor during transportation, nor is it so if their length remains less than 20 metres.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Foundations (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Claims (11)

  1. Ensemble fondation/plancher comportant une fondation (1) ayant un élément en béton qui s'étend sous la forme d'une courbe fermée, lequel élément est muni d'un renforcement, ledit élément étant constitué de plusieurs éléments de base (2) et éléments d'extrémité (3, 4), dont chacun, vu dans la direction verticale, est muni d'au moins deux premières douilles (5) destinées à recevoir des dispositifs de mise en tension, lesquelles douilles s'étendent sensiblement parallèlement sur toute la longueur de cet élément, et dans lequel des dispositifs de mise en tension préalable (6) comportant des câbles sont prévus, au moins les éléments d'extrémité étant munis d'au moins deux douilles supplémentaires (7) qui, vues dans la direction verticale, sont espacées l'une de l'autre et s'étendent sensiblement parallèlement sur toute la longueur de cet élément, pour recevoir des dispositifs de mise en tension, et dans lesquelles sont agencés des dispositifs de mise en tension, lesdites douilles supplémentaires (7) s'étendant sous un certain angle par rapport auxdites premières douilles (5), et des moyens (11) agencés sur lesdits dispositifs de mise en tension étant présents et agissant extérieurement sur lesdits éléments (2 à 4), et un plancher, caractérisé en ce qu'un espace libre permanent est défini dans lesdits éléments, dans lequel ledit plancher est agencé de manière lâche par rapport à la fondation.
  2. Ensemble selon la revendication 1, dans lequel lesdits éléments ont un profil sensiblement en forme de T, dans lequel le rebord du "T" est conçu pour être en appui sur le fond.
  3. Ensemble selon la revendication 2, dans lequel les douilles (5, 7) destinées aux câbles de mise en tension préalable sont agencées au moins à proximité du côté supérieur et du côté inférieur du corps du "T".
  4. Ensemble selon l'une des revendications précédentes, muni d'un recouvrement pour lesdits câbles de mise en tension préalable.
  5. Structure de construction telle qu'un bâtiment, comportant un ensemble fondation/plancher et des parties telles que des parois s'étendant à partir de celui-ci, dans laquelle ledit ensemble comporte une fondation ayant un élément en béton qui s'étend sous la forme d'une courbe fermée, lequel élément est muni d'un renforcement, ledit élément étant constitué de plusieurs éléments de base (2) et éléments d'extrémité (3, 4), dont chacun, vu dans la direction verticale, est muni d'au moins deux premières douilles (5) destinées à recevoir des dispositifs de mise en tension, lesquelles douilles s'étendent sensiblement parallèlement sur toute la longueur de cet élément, et dans lesquelles des dispositifs de mise en tension préalable (6) comportant des câbles sont prévus, au moins les éléments d'extrémité étant munis d'au moins deux douilles supplémentaires (7) qui, vues dans la direction verticale, sont espacées l'une de l'autre et s'étendent sensiblement parallèlement sur toute 1a longueur de cet élément, pour recevoir des dispositifs de mise en tension, et dans lesquelles sont agencés des dispositifs de mise en tension, lesdites douilles supplémentaires (7) s'étendant sous un certain angle par rapport auxdites premières douilles (5), et des moyens (11) agencés sur lesdits dispositifs de mise en tension étant présents et agissant extérieurement sur lesdits éléments (2 à 4), et un plancher, caractérisée en ce qu'un espace libre permanent est défini dans lesdits éléments, dans lequel ledit plancher est agencé de manière lâche par rapport à la fondation, et en ce que lesdites parties s'étendant à partir de celui-ci sont montées en se raccordant directement à la fondation.
  6. Procédé pour la production d'un ensemble fondation/plancher, comportant la mise à disposition de plusieurs éléments en béton (2 à 4), comprenant des éléments de base et des éléments d'extrémité, chaque élément, vu dans la direction verticale, étant muni d'au moins deux premières douilles destinées à recevoir des dispositifs de mise en tension, lesquelles douilles sont situées à une distance l'une de l'autre et s'étendent sensiblement parallèlement sur toute la longueur de cet élément, et au moins chaque élément d'extrémité étant muni de deux douilles supplémentaires qui, vues dans la direction verticale, sont situées à une distance l'une de l'autre et s'étendent sensiblement parallèlement sur toute la longueur dudit élément, lesdites premières douilles et douilles supplémentaires desdits éléments d'extrémité s'étendant sous un certain angle les unes par rapport aux autres, le placement desdits éléments les uns contre les autres sous la forme d'une courbe fermée, tandis que des organes de mise en tension sont ajustés à travers lesdites douilles et que lesdits organes sont contraints à partir des faces extérieures desdites douilles, et la réalisation d'un plancher, caractérisé en ce que la mise en tension desdits organes de mise en tension comporte la mise en tension de câbles de mise en tension préalable avec une force telle que deux éléments contigus soient comprimés l'un contre l'autre avec une force d'au moins 60 tonnes, et en ce que l'on réalise ledit plancher en versant du béton dans l'espace délimité entre les éléments, de telle sorte que ledit plancher est agencé de manière lâche par rapport à la fondation.
  7. Procédé selon la revendication 6, dans lequel un vérin à vis est utilisé pour appliquer la force de mise en tension préalable.
  8. Procédé selon la revendication 6 ou 7, dans lequel lesdits câbles de mise en tension préalable sont montés dans des douilles, et de la matière plastique est injectée dans lesdites douilles.
  9. Procédé selon les revendications 6 à 8, dans lequel lesdits éléments sont installés dans une tranchée située dans le sol.
  10. Procédé selon la revendication 9, dans lequel le fond de ladite tranchée est renforcé.
  11. Procédé selon l'une des revendications 6 à 10, dans lequel deux éléments sont montés suivant un angle et un élément de coin est placé entre eux.
EP00953576A 1999-08-12 2000-08-11 Fondation et procede de production Expired - Lifetime EP1208270B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1012815A NL1012815C2 (nl) 1999-08-12 1999-08-12 Fundatie alsmede werkwijze voor het vervaardigen daarvan.
NL1012815 1999-08-12
PCT/NL2000/000562 WO2001012907A1 (fr) 1999-08-12 2000-08-11 Fondation et procede de production

Publications (2)

Publication Number Publication Date
EP1208270A1 EP1208270A1 (fr) 2002-05-29
EP1208270B1 true EP1208270B1 (fr) 2004-11-10

Family

ID=19769727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00953576A Expired - Lifetime EP1208270B1 (fr) 1999-08-12 2000-08-11 Fondation et procede de production

Country Status (6)

Country Link
EP (1) EP1208270B1 (fr)
AT (1) ATE282116T1 (fr)
AU (1) AU6600100A (fr)
DE (1) DE60015772T2 (fr)
NL (1) NL1012815C2 (fr)
WO (1) WO2001012907A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001296896A1 (en) * 2000-09-27 2002-04-08 Allan P. Henderson Perimeter weighted foundation for wind turbines and the like
SE527708C2 (sv) * 2004-10-06 2006-05-16 Skanska Sverige Ab Byggnad, grundkonstruktion för en byggnad samt förfarande för tillverkning av sådana
WO2010099354A2 (fr) * 2009-02-25 2010-09-02 Greenhouse Technology Licensing Corporation Système et procédé de fondation modulaire
JP6898626B2 (ja) * 2015-07-09 2021-07-07 大和ハウス工業株式会社 プレキャストコンクリート基礎
JP6594683B2 (ja) * 2015-07-09 2019-10-23 大和ハウス工業株式会社 プレキャストコンクリート基礎

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2352250A1 (de) * 1973-10-18 1975-04-30 Leon Eugenie Daniel Dompas Bauwerk mit vertikalen tragwaenden und horizontalen decken
GB2035433A (en) 1978-10-25 1980-06-18 Hill R Concrete container for liquid
JPS58127835A (ja) * 1982-01-25 1983-07-30 Natl House Ind Co Ltd 基礎構造
JP2581909B2 (ja) * 1986-06-14 1997-02-19 積水ハウス 株式会社 軟弱地盤における基礎工法
JPH0235136A (ja) * 1988-07-25 1990-02-05 Kokudo Kensetsu Kk プレキャスト・プレストレスコンクリート造りの低層住宅及びその工法
GB8902712D0 (en) * 1989-02-07 1989-03-30 Econ Group Ltd Improvements relating to road working apparatus
JP2501164B2 (ja) * 1991-06-20 1996-05-29 邦博 西村 ユニット式布基礎
JP2977367B2 (ja) * 1992-04-30 1999-11-15 ミサワホーム株式会社 ユニット式建物用のプレキャストコンクリートブロック基礎

Also Published As

Publication number Publication date
NL1012815C2 (nl) 2001-02-13
DE60015772T2 (de) 2005-11-03
EP1208270A1 (fr) 2002-05-29
WO2001012907A1 (fr) 2001-02-22
AU6600100A (en) 2001-03-13
DE60015772D1 (de) 2004-12-16
ATE282116T1 (de) 2004-11-15

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