FR2562927A1 - Stone slab with prestressing reinforcement and method for its manufacture. - Google Patents
Stone slab with prestressing reinforcement and method for its manufacture. Download PDFInfo
- Publication number
- FR2562927A1 FR2562927A1 FR8406016A FR8406016A FR2562927A1 FR 2562927 A1 FR2562927 A1 FR 2562927A1 FR 8406016 A FR8406016 A FR 8406016A FR 8406016 A FR8406016 A FR 8406016A FR 2562927 A1 FR2562927 A1 FR 2562927A1
- Authority
- FR
- France
- Prior art keywords
- slab
- cables
- mortar
- grooves
- manufacture
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
- E04C3/26—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members prestressed
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
La présente invention a pour objet la réalisation de dalles en pierre qui comportent une résistance à la rupture supérieure à celle des dalles classiques en pierre de même épaisseur et de même nature et qui soient susceptibles à ce titre de supporter des charges plus élevées. The subject of the present invention is the production of stone slabs which have a higher breaking strength than that of conventional stone slabs of the same thickness and of the same nature and which are therefore capable of withstanding higher loads.
La dalle suivant l'invention est essentiellement remarquable en ce qu'elle renferme, noyée à l'intérieur de masses de mortier synthétique coulées dans des rainures pratiquées dans l'une de ses faces, une armature de précontrainte forme par une surie de câbles qui, préalablement au durcissement ou prise dudit mortier, ont été soumis à un effort de traction oriente suivant leur axe
L'invention vise egalement un procédé pour la fabrication industrielle de telles dalles, lequel procédé ressortira de la description qui va suivre en référence au dessin annexe donné à titre d'exemple.The slab according to the invention is essentially remarkable in that it contains, embedded inside masses of synthetic mortar poured into grooves made in one of its faces, a prestressing reinforcement formed by a series of cables which , prior to hardening or setting of said mortar, were subjected to a tensile force oriented along their axis
The invention also relates to a process for the industrial manufacture of such slabs, which process will emerge from the description which follows with reference to the accompanying drawing given by way of example.
Fig. 1 de ce dessin est une coupe transversale d'une dalle de pierre à armature de précontrainte établie conformement à l'invention. Fig. 1 of this drawing is a cross section of a stone slab with prestressing reinforcement established in accordance with the invention.
Fig. 2 à 4 illustrent le procédé pour la fabrication de la dalle suivant fig. 1. Fig. 2 to 4 illustrate the process for manufacturing the slab according to fig. 1.
En fig. 1 la référence 1 désigne un bloc en pierre naturelle, se présentant sous la forme d'une dalle à profil rectangulaire ou carré. In fig. 1 reference 1 designates a natural stone block, in the form of a slab with a rectangular or square profile.
Dans la face non apparente de cette dalle 1 sont creusées des rainures parallèles la, au nombre de cinq dans l'exemple de réalisation envisagé à l'intérieur de chacun des logements formes par ces rainures la est disposé un câble métallique 2 sous tension, noyé à l'intérieur d'une masse de mortier synthétique 3 qui s'oppose à tout déplacement intempestif dudit câble, aussi bien dans le sens axial que dans le sens transversal.In the non-visible face of this slab 1 are hollowed out parallel grooves la, five in number in the embodiment envisaged inside each of the housings formed by these grooves la is disposed a metallic cable 2 under tension, embedded inside a mass of synthetic mortar 3 which prevents any untimely movement of said cable, both in the axial direction and in the transverse direction.
Pour la fabrication d'une telle dalle à armature de précontrainte, on commence par réaliser dans une dalle brute cinq rainures la (fig. 2) orientées suivant la longueur de ladite dalle. Dans chacune de ces rainures la est engagé un cable métallique 2 (fig. 3) sur les extrémités dépassantes desquelles on exerce une très forte traction axiale, tout en maintenant lesdits cables à une distance appropriée du fond de la rainure correspondante. Alors que la traction est maintenue, on introduit dans chaque rainure la une masse d'un mortier synthétique, forme par exemple par un melange approprie de sable siliceux et de resine epoxy, qui emplit completement ladite rainure jusqu' reformer une paroi pratiquement lisse. For the manufacture of such a slab with prestressed reinforcement, one begins by making in a raw slab five grooves la (Fig. 2) oriented along the length of said slab. In each of these grooves is engaged a metal cable 2 (Fig. 3) on the projecting ends of which there is exerted a very strong axial traction, while maintaining said cables at an appropriate distance from the bottom of the corresponding groove. While the traction is maintained, a mass of synthetic mortar is introduced into each groove, formed for example by an appropriate mixture of silica sand and epoxy resin, which completely fills said groove until a practically smooth wall is formed.
La traction axiale sur les câbles 2 est maintenue à la mEme valeur pendant tout le temps nécessaire au durcissement des masses de mortier 3 et ce n'est qu'après la prise complète de celui-ci qu'on cesse l'effort de traction Les câbles 2 sont alors sectionnés au ras des parois transversales de la dalle 1 afin d'éliminer les extrémités dépassantes 2', comme illustre dans la coupe longitudinale partielle de fig. 4. The axial traction on the cables 2 is maintained at the same value for all the time necessary for the hardening of the mortar masses 3 and it is only after the complete setting thereof that the traction force ceases. cables 2 are then sectioned flush with the transverse walls of the slab 1 in order to eliminate the protruding ends 2 ', as illustrated in the partial longitudinal section of FIG. 4.
On obtient ainsi la dalle de pierre de fig. 1, laquelle est dotée d'une armature de précontrainte qui renforce de manière considérable sa résistance à la rupture. En outre cette armature évite qu'en cas de rupture due à une surcharge les deux pièces sectionnées ne se séparent complètement l'une de l'autre. This gives the stone slab in fig. 1, which is provided with a prestressing reinforcement which considerably strengthens its breaking strength. In addition, this frame prevents the two sectioned parts from completely separating from each other in the event of a rupture due to an overload.
I1 va de soi que le nombre des câbles 2 et leur distance réciproque peuvent varier dans une très large mesure. De plus en certains cas il est possible de doter la dalle de deux armatures croisées. It goes without saying that the number of cables 2 and their reciprocal distance can vary to a very large extent. In addition, in some cases it is possible to provide the slab with two crossed frames.
I1 doit d'ailleurs être entendu que la description qui précède nta été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents. It should moreover be understood that the above description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the details of execution described by all other equivalents.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8406016A FR2562927B1 (en) | 1984-04-12 | 1984-04-12 | STONE SLAB WITH PRE-STRESS REINFORCEMENT AND METHOD FOR THE PRODUCTION THEREOF |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8406016A FR2562927B1 (en) | 1984-04-12 | 1984-04-12 | STONE SLAB WITH PRE-STRESS REINFORCEMENT AND METHOD FOR THE PRODUCTION THEREOF |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2562927A1 true FR2562927A1 (en) | 1985-10-18 |
FR2562927B1 FR2562927B1 (en) | 1988-03-18 |
Family
ID=9303208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8406016A Expired FR2562927B1 (en) | 1984-04-12 | 1984-04-12 | STONE SLAB WITH PRE-STRESS REINFORCEMENT AND METHOD FOR THE PRODUCTION THEREOF |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2562927B1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GR890100218A (en) * | 1988-04-05 | 1990-01-31 | Beltran Ortega Jorge Comercio | Method for restoring the form of distorted constructions |
EP0698483A3 (en) * | 1994-08-25 | 1996-06-19 | Marcello Toncelli | Process for the production of reinforced slabs of stone material |
US5894003A (en) * | 1996-07-01 | 1999-04-13 | Lockwood; William D. | Method of strengthening an existing reinforced concrete member |
EP0949389A1 (en) * | 1998-04-08 | 1999-10-13 | Bilfinger + Berger Bauaktiengesellschaft | Anchorage device for tension members |
US6416693B1 (en) | 1996-07-01 | 2002-07-09 | William D. Lockwood | Method of strengthening an existing reinforced concrete member |
GB2474541A (en) * | 2009-09-02 | 2011-04-20 | Be Modern Ltd | Fire component of stone with elongate metal reinforcements |
ES2364175A1 (en) * | 2011-04-15 | 2011-08-26 | Guillermo SÁNCHEZ COSTA | Bulkhead. (Machine-translation by Google Translate, not legally binding) |
NL2014680A (en) * | 2015-04-20 | 2016-10-24 | Sealteq│Group B V | Reinforcement of a masonry wall. |
CN109162419A (en) * | 2018-08-14 | 2019-01-08 | 华侨大学 | A kind of pre-manufactured skin layer is embedded into pre-stress fibre muscle reinforcing plate and production method |
-
1984
- 1984-04-12 FR FR8406016A patent/FR2562927B1/en not_active Expired
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GR890100218A (en) * | 1988-04-05 | 1990-01-31 | Beltran Ortega Jorge Comercio | Method for restoring the form of distorted constructions |
EP0698483A3 (en) * | 1994-08-25 | 1996-06-19 | Marcello Toncelli | Process for the production of reinforced slabs of stone material |
US5670007A (en) * | 1994-08-25 | 1997-09-23 | Toncelli; Marcello | Process for the production of reinforced slabs of stone material |
US6416693B1 (en) | 1996-07-01 | 2002-07-09 | William D. Lockwood | Method of strengthening an existing reinforced concrete member |
US5894003A (en) * | 1996-07-01 | 1999-04-13 | Lockwood; William D. | Method of strengthening an existing reinforced concrete member |
EP1380705A2 (en) * | 1998-04-08 | 2004-01-14 | Bilfinger Berger AG | Use of an anchorage device for tension members |
EP0949389A1 (en) * | 1998-04-08 | 1999-10-13 | Bilfinger + Berger Bauaktiengesellschaft | Anchorage device for tension members |
EP1380705A3 (en) * | 1998-04-08 | 2004-01-28 | Bilfinger Berger AG | Use of an anchorage device for tension members |
GB2474541A (en) * | 2009-09-02 | 2011-04-20 | Be Modern Ltd | Fire component of stone with elongate metal reinforcements |
ES2364175A1 (en) * | 2011-04-15 | 2011-08-26 | Guillermo SÁNCHEZ COSTA | Bulkhead. (Machine-translation by Google Translate, not legally binding) |
NL2014680A (en) * | 2015-04-20 | 2016-10-24 | Sealteq│Group B V | Reinforcement of a masonry wall. |
WO2016171555A1 (en) * | 2015-04-20 | 2016-10-27 | Sealteq | Group B.V. | Reinforced masonry wall |
US11028604B2 (en) | 2015-04-20 | 2021-06-08 | Sealteq I Group B.V. | Reinforced masonry wall |
CN109162419A (en) * | 2018-08-14 | 2019-01-08 | 华侨大学 | A kind of pre-manufactured skin layer is embedded into pre-stress fibre muscle reinforcing plate and production method |
Also Published As
Publication number | Publication date |
---|---|
FR2562927B1 (en) | 1988-03-18 |
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