EP0979332B1 - Procede de fabrication d'elements de construction prefabriques, et ouvrage precontraint realise avec de tels elements - Google Patents
Procede de fabrication d'elements de construction prefabriques, et ouvrage precontraint realise avec de tels elements Download PDFInfo
- Publication number
- EP0979332B1 EP0979332B1 EP99904942A EP99904942A EP0979332B1 EP 0979332 B1 EP0979332 B1 EP 0979332B1 EP 99904942 A EP99904942 A EP 99904942A EP 99904942 A EP99904942 A EP 99904942A EP 0979332 B1 EP0979332 B1 EP 0979332B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- sleeve
- sleeves
- sheath
- elements
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/10—Ducts
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Definitions
- the present invention relates to the construction of prestressed structures from elements in prefabricated concrete conjugates.
- the invention applies in particular, but not exclusively for cantilever bridges with prefabricated segments with conjugate joints (see for example the article: “Evolution and recent developments of prefabricated segment bridges "de Jacques Mathivat, Annals of the Technical Institute of Building and Public Works, Supplement to No. 342, September 1976, pages 21-32, or the request for Patent E-P-A-0 462 350).
- the successively assembled elements (segments) of the bridge are produced one after the other, the front face of the element n serving to delimit the rear side of the mold for manufacturing the element n + 1.
- These faces are glued to each other during the installation of the element n + 1 on the site. Complementary reliefs are usually provided on these faces to facilitate their mutual positioning and to help support the element n + 1 before its final fixing.
- the positioning of the sheath sections in the elements must be very precise so that the cables of prestress can be threaded without difficulty.
- the joint can be made according to two methods: "dry joint” when the faces of concrete come juxtaposed without interface product; or "glued joint” when an interface adhesive is placed on the joint right.
- the sealing responds by in addition to the need to prevent epoxy glue or analog arranged between the elements can penetrate into sheaths and hinder the introduction of cables.
- the sheaths are usually injected with a filler (cement grout, grease wax, resin ...) used in particular to protect cables against corrosion. This product must not escape outside sheath during injection.
- Certain areas of the structure may have a fairly high density of sheaths, and we don't have the assurance that the epoxy glue will seal between these ducts. This results in the serious risk that grout injected under pressure into a sheath comes to infiltrate in one or more neighboring ducts, where the injection then becomes very difficult if not impossible.
- Patent application FR-A-2,596,439 describes a connecting device between sheath sections of prestressed, comprising an engaged cylindrical sleeve between the mouths of two contiguous sections for ensure the continuity of the sheath, and an elastic seal surrounding the cylindrical sleeve to realize sealing and compensating for irregularities in positioning of the blocks and their dimensional deviations.
- An object of the present invention is to provide a simple and effective solution to the problems encountered to carry out the prestressing of structures built at from prefabricated elements combined.
- the positioning fitting can be the same piece that the fitting that will seal between the sleeves after the final assembly of the elements. In in this case, you can leave the fitting in place in one or the other of the two sleeves during the storage of elements.
- the sleeves and fitting provide precise and correct positioning of each section of sheath in each element, as well as the correct alignment of successive sections. Dimensional deviations to compensate are thus minimized.
- the sealing fittings which are fitted with the sleeves ending the sheath sections on the face of one of the elements, engage in the sleeves ending the corresponding sheath sections of the other element.
- This engagement realizes the sheath tightness vis-à-vis the glue, one of the complementary faces of which is generally coated. It also ensures the absence of communication with the outside or between neighboring ducts when injecting cement grout or other product filling in the ducts.
- the sealing connection can be a single piece with one of the two sleeves. But it is preferably removably attached to one of the two sleeves, for example by screwing or interlocking elastic.
- the invention also relates to a work of construction, comprising an assembly of elements prefabricated with a series of elements as defined above, the contact faces of the conjugate elements being applied against each other so that the sheath sections are arranged in the extension the from each other to form complete sheaths, with fittings engaged in the sleeves to connect so waterproof the adjacent sheath sections, and in which prestressing cables and a filler occupy the interior of the sheaths.
- the invention is described below in its application to bridges with prefabricated segments with joints conjugates.
- Element 1 has the general shape of a delimited box internally by a base 2, laterally by two walls 3 inclined symmetrically, and above by an apron 4 extended laterally beyond the walls 3 to set the width of the bridge.
- element 1 is delimited by a rear face 6 and a front face 7 substantially parallel.
- the rear face 6 is intended for come into contact against the front face, in shape complementary, of the previous element installed on the structure under construction (in the case of the first element installed on a bridge pier, the front complementary belongs to this stack).
- the face front 7 of element 1 is intended to receive the face back of the next item to be put in place.
- the contact faces of complementary shapes of the adjacent elements are provided with reliefs 8 a , 8 b ensuring good relative positioning of the elements when they are brought together.
- these reliefs are situated on the side walls of the end faces 3 of the elements, and have the shape of a part of trapezoidal profile bosses 8 has made during the molding on the front face 7 a of the element 1 a , and on the other hand recesses with a complementary trapezoidal profile 8.8 b produced during molding on the rear face 6.6 b of the element 1, 1 b .
- an assembly adhesive is for example an epoxy resin with which one or the other of the two complementary faces is coated before assembly.
- the element 1.1 b is clamped against the previous element la, so that the recesses 8.8 b with trapezoidal profile formed on its rear face 6.6 b provide support on the complementary bosses 8 a of the front face 7 a of the preceding element 1 a to support it before the setting of the glue.
- the reliefs at least partially take up the shearing force exerted at the joint by the load of the work
- Element 1 has a number of sections of longitudinal sheath 10, intended to receive cables prestressing. These cables are anchored on the structure to their ends by means of anchoring devices appropriate. Some of these anchors 11 can optionally be arranged on bosses 12 provided inside the box shape of the element.
- the sheath sections 10 open onto the rear face 6. and / or on the front face 7 of the element. He imports ensure the continuity and tightness of each sheath prestressing at the level of the faces in contact with the elements adjacent. For this, use is made, according to the invention, of connecting pieces (sleeves and fittings) which are described below.
- the successive elements 1 are prefabricated in molded concrete.
- Figures 2 to 5 illustrate the prefabrication of two consecutive elements 1 a , 1 b .
- Positioning pads 16 are fixed on the inside of the wall 15, for example by welding. These studs 16, of generally cylindrical shape, are used to install the sheath sections 10 a of the first element 1 a in the mold.
- each sheath section 10 a is engaged in a sleeve 18a to an inner stopper 19 is provided in the sleeve.
- the seal between the sheath section 10 a and the sleeve 18 a is produced in a conventional manner using a heat-shrinkable sheath or an adhesive tape 20.
- the sleeve 18 a is in a sufficiently rigid material so as not to deform when the concrete is poured into the mold, for example a plastic such as high density polyethylene.
- the sleeve 18 a has an enlarged portion 21 a of suitable shape to come into engagement on the positioning pad 16.
- the sleeve 18 has connected to the sheath section 10 a is engaged on the pad 16 by an operator.
- the sleeve 18 a is thus positioned accurately against the wall 15 of the mold and retained in this position by the latching means provided on the positioning boss 16.
- These means may comprise an elastic member 22 housed in an annular groove 23 provided outside the cylindrical shape of the positioning pad 16, and cooperating with another annular groove 24 a provided in the interior shape of the enlarged portion 21 a of the sleeve 18 a .
- the member 22 consists for example of an O-ring spring with flat turns which can be crushed when it is compressed radially.
- the concrete is poured into the mold.
- the element 1 a can be extracted from the mold, the wall 15 being removed by tearing off the positioning pads 16 from the sleeves 18 a .
- This wall 15 releases the front face 7a of the element.
- the front end 25 a of the sleeve 18 a which was applied against the wall 15, lies in the plane of the front face 7 a .
- the constitution of the element la in the vicinity of the front end of a section of sheath 10 a is shown in FIG. 3.
- the front face 7a of the element 1 is used to define the rear side of the manufacturing mold of the next element 1b (figure 4).
- a positioning connector 30 is engaged in the enlarged portion 21 a of each sleeve 18 a appearing on the front face 7 a of the first element 1 a .
- connection 30 can be made of a more flexible material than the sleeve 18 a , for example of a low density polyethylene having a modulus of elasticity of the order of 500 N / mm 2 .
- a rear portion of connector 30 has an outer shape corresponding to the inner shape of the widened portion 21a of the sleeve 18a, with in particular an annular bead 31 complementary to the annular groove 24a of the sleeve 18 a. This rear portion of the connector 30 is pushed into the widened portion 21a of the sleeve 18a, where it is held in place by the cooperation of the bead 31 with the annular groove 24 a.
- the other (front) part of the connector 30 protrudes beyond the front face 7a of the element 1 a.
- This front part may have an outer contour of generally frustoconical shape provided with another annular bead 32.
- this frustoconical shape which converges away from the element, has a half-angle at the top ⁇ less than l angle ⁇ formed by the flanks of the trapezoidal profile of reliefs 8a, 8b with the direction perpendicular to the end surfaces 7a, 6b, which ensures that the portion 30 is not damaged during handling of the item 1 b .
- Each sheath section 10 b of the second element 1 b is engaged in another sleeve 18 b up to an internal stop 19 b , with a heat-shrinkable sheath or an adhesive tape 20 to ensure the seal between the sheath and the sleeve.
- the sleeve 18 b has an enlarged portion 21 b whose internal shape is complementary to the external shape of the projecting front part of the positioning connector 30.
- this enlarged portion 21 b has an internal annular groove 24 b which cooperates with the annular bead 32 of the positioning connector to hold the sleeve 18 b in place against the sleeve 18 a in the mold for manufacturing the second element (FIG. 4).
- the second element 1 b has the configuration shown in FIG. 5 in the vicinity of the rear end of the sheath section 10 b , the sleeve 18 b having its rear end 25 b in the plane of the rear face 6 b of the element.
- the fact that the positioning connector 30 remains in place on the first element 1 a rather than on the second element 1 b results from the angular opening of the enlarged portion 21 b of the sleeve 18 b , which is larger than the opening angle of the enlarged portion 21a of the other sleeve 18 a.
- the positioning fitting 30 remaining on the first element will serve as a sealing connection between the corresponding sheath sections 10 a , 10 b during the assembly of the elements on the site.
- This connector 30 is thus provided with an orifice coaxial with the sheath sections 10 a , 10 b , the section of which is preferably at least equal to the interior section of these sheath sections. Due to its complementary external shape of the housing defined between the enlarged portions 21 a , 21 b of the sleeves, the relative elasticity of its material and its constant and relatively small thickness, the connector 30 undergoes a certain radial compression which ensures the sealing of the sheath at the interface between the elements 1 a , 1 b .
- the angular opening of the widened portion 21b of the sleeve 18 b which substantially corresponds to the angle 2 ⁇ top of the frusto-conical front portion of the connector 30 is preferably greater than 30 degrees. With this arrangement, the connector 30 can readily penetrate into its housing when the second element 1b is closer to the first element 1a.
- this connector 30 can be torn off from the sleeve 18 a in which it is retained elastically, and replaced by another connector.
- the positioning patch 30 used during the prefabrication of the elements 1 a, 1 b may be separate from the sealing connector installed for the final assembly of the elements, provided that the connector 30 correctly positions the sleeve 18b in the mold of manufacturing the second element.
- the positioning and sealing connection could be in one piece with one of the two sleeves.
- the first element could be manufactured in the manner illustrated with reference to Figures 2 and 3 (but preferably with sleeves 18 a whose enlarged portion 21 a would have a greater angular opening), and the second sleeves connected to the ends rear of the sheath sections 10 b could be extended by a more flexible rear part whose external contour would be complementary to the internal shape of the enlarged portion 21 a .
- this rear part more flexible its thickness can be reduced compared to the rest of the sleeve, and / or make this sleeve from two materials having different elastic moduli. With such an embodiment, the number of parts required to make the seal is minimized.
- connection of positioning and / or sealing is screwed into one or the other of the two sleeves.
- the positioning and sealing connector 50 has a cylindrical rear part engaged in the sleeve 38 a to which the sheath section 10 a of the first element is connected, and a frustoconical front part provided of an outer annular bead 52. Between these two parts, the connector 50 has a transverse shoulder 54 which abuts against the front end 45 a of the sleeve 38 a and against the front face of the first element.
- the cylindrical part of the connector 50 is provided with a female thread 53 complementary to a male thread 46 a provided inside the sleeve 18 a .
- the connector 50 can be screwed into the first sleeve 38 a , the threads contributing to the seal.
- the seal results from the engagement of the bead 52 in the groove 44 b provided inside the enlarged portion 41 b of the second sleeve 38 b .
- the seal is further reinforced by the fact that the two ends of the connector 50 have thinned lips 55 a , 55 b which flex elastically inwards when the connector 50 is installed in sleeves 38 a , 38 b .
- This sag can be caused by curved internal surfaces provided in the sleeves 38 a , 38 b , on the back of the stops 39 a , 39 b respectively receiving the ends of the sheath sections.
- annular housing 47 a , 47 b open towards the front side, is provided in the internal shape of the sleeve 38 a , 38 b , on the back of the stop 39 a , 39 b .
- the two ends of the positioning and sealing fitting then compress flat seals 48 a , 48 b placed in the housings 47 a , 47 b .
- Positioning and sealing fitting 70 a a general form complementary to those of the parties frustoconical 62 and cylindrical recesses 63 of two facing sleeves, with a cylindrical bore central having approximately the inner section of sheath sections.
- the fitting 70 is provided with a series of radial notches 71 in the frustoconical part of its outer surface which make it more flexible, of two annular beads 72 which engage in the corresponding grooves 65 of the two sleeves and, on its two end faces, two respective annular grooves 73 which allow a bending of the portions having the beads 72 so that they engage elastically in the gorges 65 of the sleeves, and which define, towards the inside of the fitting, annular lips 74 coming to apply from sealingly against the annular edges 66 of the sleeves.
- the connector 70 On only one of its sides, the connector 70 has a thread 75 intended to be screwed onto the thread 64 of one of the sleeves. This screwing is carried out on the sleeve of the element produced first, after its release. On the opposite side of fitting 70, there is no 75 thread, to allow easy assembly of elements.
- the advantage of the embodiment of FIG. 7 is its lower cost taking into account the identity of the two sleeves 58 a , 58 b used.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Processing Of Solid Wastes (AREA)
Description
- disposer dans un moule au moins un premier tronçon de gaine de précontrainte ayant une extrémité raccordée à un premier manchon appliqué contre une paroi du moule, le premier manchon présentant une forme intérieure venant en prise sur un plot de positionnement disposé sur ladite paroi;
- couler du béton dans ledit moule de manière à obtenir le premier élément après prise du béton;
- extraire du moule le premier élément, dont une face de contact a été mise en forme par ladite paroi;
- constituer un second moule dont un côté est formé par ladite face de contact du premier élément;
- disposer dans le second moule au moins un second tronçon de gaine de précontrainte ayant une extrémité raccordée à un second manchon maintenu en position par rapport au premier manchon au moyen d'un raccord de positionnement retenu élastiquement dans l'un au moins des premier et second manchons;
- couler du béton dans le second moule de manière à obtenir le second élément après prise du béton; et
- extraire le second élément du second moule, en désengageant le raccord de positionnement de l'un au moins des premier et second manchons.
- le plot de positionnement peut être pourvu de moyens d'accrochage élastique qui coopèrent avec une gorge annulaire que présente la forme intérieure du premier manchon pour le maintenir de manière amovible dans le moule ;
- le manchon dans lequel le raccord de positionnement est retenu élastiquement peut présenter une ouverture angulaire d'au moins 30 degrés ;
- le raccord de positionnement peut être retenu élastiquement dans chacun des premier et second manchons ;
- le raccord de positionnement peut être vissé dans l'un des premier et second manchons ;
- lorsqu'une caractéristique selon l'un des deux alinéas précédents est prévue, le raccord de positionnement peut être traversé par un orifice coaxial aux manchons, de section au moins égale à la section intérieure des premier et second tronçons de gaine, et dans ce cas on laisse en place le raccord de positionnement dans le premier ou le second manchon après l'extraction du second élément.
- la figure 1 est une vue en perspective d'un voussoir préfabriqué auquel peut être appliquée la présente invention ;
- la figure 1A est une vue latérale partielle illustrant l'assemblage de deux voussoirs consécutifs ;
- la figure 2 est une vue en coupe illustrant la mise en place d'un tronçon de gaine dans un moule de fabrication d'un premier élément ;
- la figure 3 est une vue en coupe partielle du premier élément fabriqué ;
- la figure 4 est une vue en coupe illustrant la mise en place d'un second tronçon de gaine dans un moule de fabrication d'un second élément ;
- la figure 5 est une vue en coupe partielle du second élément fabriqué ;
- la figure 6 est une vue en coupe montrant deux variantes de réalisation des moyens de jonction de deux tronçons de gaine de précontrainte ; et
- la figure 7 est une vue en coupe montrant une autre variante de réalisation de ces moyens.
- une partie cylindrique 59 pour recevoir l'extrémité des tronçons de gaine 10a, 10b ;
- un épaulement intérieur 60 à l'extrémité de la portion cylindrique 59, contre lequel vient buter l'extrémité du tronçon de gaine ;
- un étranglement 61 pour attacher le manchon au plot de positionnement 16 sur la paroi 15 délimitant le côté avant du moule, le ressort torique 22 du plot 16 venant en prise dans la gorge annulaire formée derrière l'étranglement 61 ;
- une partie tronconique 62 s'évasant vers l'extérieur et s'étendant de l'étranglement 61 vers l'extrémité frontale du manchon 58a,58b ;
- dans la partie tronconique 62, un renfoncement cylindrique 63 pourvu d'un taraudage intérieur 64 vers l'extrémité frontale du manchon, et d'une gorge annulaire 65, et dont le fond comporte un rebord annulaire 66 dirigé vers l'extrémité frontale.
Claims (11)
- Procédé de fabrication d'éléments de construction en béton comprenant au moins un premier et un second éléments conjugués (1a,1b), le procédé comprenant les étapes suivantes:disposer dans un moule au moins un premier tronçon de gaine de précontrainte (10a) ayant une extrémité raccordée à un premier manchon (18a; 38a; 58a) appliqué contre une paroi (15) du moule, le premier manchon présentant une forme intérieure venant en prise sur un plot de positionnement (16) disposé sur ladite paroi;couler du béton dans ledit moule de manière à obtenir le premier élément (1a) après prise du béton;extraire du moule le premier élément, dont une face de contact (7a) a été mise en forme par ladite paroi;constituer un second moule dont un côté est formé par ladite face de contact du premier élément;disposer dans le second moule au moins un second tronçon de gaine de précontrainte (10b) ayant une extrémité raccordée à un second manchon (18b; 38b; 58b) maintenu en position par rapport au premier manchon au moyen d'un raccord de positionnement (30; 50; 70) retenu élastiquement dans l'un au moins des premier et second manchons;couler du béton dans le second moule de manière à obtenir le second élément (1b) après prise du béton; etextraire le second élément du second moule, en désengageant le raccord de positionnement de l'un au moins des premier et second manchons.
- Procédé selon la revendication 1, dans lequel la forme intérieure de l'un au moins des premier et second manchons (18a,18b; 38b; 58a,58b) comporte une gorge annulaire (24a,24b; 44b; 65) pour recevoir un bourrelet annulaire complémentaire (31,32; 52; 72) du raccord (30; 50; 70).
- Procédé selon la revendication 1 ou 2, dans lequel le plot de positionnement (16) est pourvu de moyens d'accrochage élastique (22) qui coopèrent avec une gorge annulaire (24a; 44a) que présente la forme intérieure du premier manchon (18a; 38a; 58a) pour le maintenir de manière amovible dans le moule.
- Procédé selon l'une quelconque des revendications 1 à 3, dans lequel le manchon (18b; 38b; 58b) dans lequel le raccord de positionnement (30; 50; 70) est retenu élastiquement présente une ouverture angulaire d'au moins 30 degrés.
- Procédé selon l'une quelconque des revendications 1 à 4, dans lequel le raccord de positionnement (30) est retenu élastiquement dans chacun des premier et second manchons (18a, 18b).
- Procédé selon l'une quelconque des revendications 1 à 4, dans lequel le raccord de positionnement (50; 70) est vissé dans l'un des premier et second manchons (38a; 58a).
- Procédé selon la revendication 5 ou 6, dans lequel le raccord de positionnement (30; 50; 70) est traversé par un orifice coaxial aux manchons (18a,18b; 38a,38b; 58a,58b), de section au moins égale à la section intérieure des premier et second tronçons de gaine (10a,10b), et dans lequel on laisse en place le raccord de positionnement (30; 50; 70) dans le premier ou le second manchon après l'extraction du second élément (1b).
- Procédé selon l'une quelconque des revendications 1 à 7, dans lequel les premier et second manchons (58a,58b) sont des pièces ayant la même forme.
- Procédé selon l'une quelconque des revendications 1 à 4, dans lequel le raccord de positionnement est d'une seule pièce avec le premier ou le second manchon, et est traversé par un orifice coaxial aux manchons, de section au moins égale à la section intérieure des premier et second tronçons de gaine.
- Ouvrage de construction, comprenant un assemblage d'éléments préfabriqués réalisés au moyen d'un procédé selon l'une quelconque des revendications 1 à 9 et comprenant au moins une paire d'éléments conjugués en béton (1a,1b) ayant deux faces de contact respectives de formes complémentaires (7a,6b) et comportant au moins une paire de tronçons de gaine de précontrainte respectifs (10a,10b), les faces de contact (7,6) des éléments conjugués (1) étant appliquées les unes contre les autres de sorte que les tronçons de gaine (10) sont disposés dans le prolongement les uns des autres pour former des gaines complètes, avec des raccords (30; 50; 70) engagés dans les manchons (18a,18b; 38a,38b; 58a,58b) pour relier de manière étanche les tronçons de gaine adjacents, et dans lequel des câbles de précontrainte et un produit de remplissage occupent l'intérieur des gaines.
- Ouvrage selon la revendication 10, dans lequel une colle d'assemblage est située à l'interface de deux éléments conjugués, lesdits manchons et raccords empêchant cette colle de pénétrer dans les gaines.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9802406A FR2775492B1 (fr) | 1998-02-27 | 1998-02-27 | Elements de construction prefabriques, ouvrage precontraint realise avec de tels elements et procede de fabrication de tels elements |
FR9802406 | 1998-02-27 | ||
PCT/FR1999/000411 WO1999043910A1 (fr) | 1998-02-27 | 1999-02-24 | Procede de fabrication d'elements de construction prefabriques, et ouvrage precontraint realise avec de tels elements |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0979332A1 EP0979332A1 (fr) | 2000-02-16 |
EP0979332B1 true EP0979332B1 (fr) | 2003-08-06 |
Family
ID=9523454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99904942A Expired - Lifetime EP0979332B1 (fr) | 1998-02-27 | 1999-02-24 | Procede de fabrication d'elements de construction prefabriques, et ouvrage precontraint realise avec de tels elements |
Country Status (13)
Country | Link |
---|---|
US (1) | US6389764B1 (fr) |
EP (1) | EP0979332B1 (fr) |
JP (1) | JP4056094B2 (fr) |
AT (1) | ATE246757T1 (fr) |
AU (1) | AU2526499A (fr) |
DE (1) | DE69910133T2 (fr) |
DK (1) | DK0979332T3 (fr) |
ES (1) | ES2205771T3 (fr) |
FR (1) | FR2775492B1 (fr) |
HK (1) | HK1026009A1 (fr) |
PT (1) | PT979332E (fr) |
TR (1) | TR199902557T1 (fr) |
WO (1) | WO1999043910A1 (fr) |
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JP2001032211A (ja) * | 1999-05-17 | 2001-02-06 | Anderson Technology Kk | 外ケーブルを配設した橋梁の箱桁構造及び同箱桁の構築方法 |
JP4660803B2 (ja) * | 2000-05-12 | 2011-03-30 | 東拓工業株式会社 | Pc橋におけるプレキャストセグメントの接合構造 |
DE10033845A1 (de) * | 2000-07-12 | 2002-01-24 | Aloys Wobben | Turm aus Spannbeton-Fertigteilen |
US6834890B2 (en) * | 2002-05-07 | 2004-12-28 | Felix L. Sorkin | Coupler apparatus for use with a tendon-receiving duct in a segmental precast concrete structure |
US6764105B1 (en) * | 2002-05-07 | 2004-07-20 | Felix L. Sorkin | Duct coupler apparatus for use with precast concrete segmental construction |
US6874821B1 (en) * | 2002-05-07 | 2005-04-05 | Felix L. Sorkin | Coupler apparatus for use with angled post-tension cables in precast concrete segmental construction |
US7707307B2 (en) * | 2003-01-09 | 2010-04-27 | Cisco Technology, Inc. | Method and apparatus for constructing a backup route in a data communications network |
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DE1559491B1 (de) * | 1965-03-12 | 1970-06-04 | Walter Dipl Ing Christmann | Fugenausbildung zwischen betonfertigbauteilen mit querlaufendem spanngliedkanal sowie verfahren zu ihrer herstellung |
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DE3824107A1 (de) * | 1988-06-27 | 1990-03-15 | Werner Zapf | Aus mehreren stahlbetonfertigteilen zusammengefuegter baukoerper in einer spannbetonbauweise |
IT1234461B (it) * | 1989-06-21 | 1992-05-18 | Carcassi Marco | Procedimento ed attrezzatura di prefabbricazione di ponti ed opere simili, con getto simultaneo dei segmenti componenti una campata |
FR2677693B1 (fr) * | 1991-06-13 | 1993-10-08 | Freyssinet International Cie | Perfectionnements aux procedes et dispositifs pour renforcer le beton a la compression et aux ouvrages en beton ainsi renforces. |
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-
1998
- 1998-02-27 FR FR9802406A patent/FR2775492B1/fr not_active Expired - Lifetime
-
1999
- 1999-02-24 US US09/403,909 patent/US6389764B1/en not_active Expired - Lifetime
- 1999-02-24 AT AT99904942T patent/ATE246757T1/de not_active IP Right Cessation
- 1999-02-24 DK DK99904942T patent/DK0979332T3/da active
- 1999-02-24 PT PT99904942T patent/PT979332E/pt unknown
- 1999-02-24 AU AU25264/99A patent/AU2526499A/en not_active Abandoned
- 1999-02-24 JP JP54322799A patent/JP4056094B2/ja not_active Expired - Lifetime
- 1999-02-24 EP EP99904942A patent/EP0979332B1/fr not_active Expired - Lifetime
- 1999-02-24 WO PCT/FR1999/000411 patent/WO1999043910A1/fr active IP Right Grant
- 1999-02-24 DE DE69910133T patent/DE69910133T2/de not_active Expired - Lifetime
- 1999-02-24 ES ES99904942T patent/ES2205771T3/es not_active Expired - Lifetime
- 1999-02-24 TR TR1999/02557T patent/TR199902557T1/xx unknown
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AU2526499A (en) | 1999-09-15 |
ES2205771T3 (es) | 2004-05-01 |
JP2001522424A (ja) | 2001-11-13 |
PT979332E (pt) | 2003-12-31 |
FR2775492A1 (fr) | 1999-09-03 |
HK1026009A1 (en) | 2000-12-01 |
WO1999043910A1 (fr) | 1999-09-02 |
TR199902557T1 (xx) | 2000-05-22 |
EP0979332A1 (fr) | 2000-02-16 |
JP4056094B2 (ja) | 2008-03-05 |
DK0979332T3 (da) | 2003-12-01 |
FR2775492B1 (fr) | 2000-05-05 |
US6389764B1 (en) | 2002-05-21 |
DE69910133T2 (de) | 2004-06-09 |
DE69910133D1 (de) | 2003-09-11 |
ATE246757T1 (de) | 2003-08-15 |
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