EP0344608A1 - Elément de montage en béton pour constructions en béton précontraint - Google Patents

Elément de montage en béton pour constructions en béton précontraint Download PDF

Info

Publication number: EP0344608A1
Authority: EP; European Patent Office
Prior art keywords: arrangement according; cover sleeve; reinforcement arrangement; concrete; elements
Prior art date: 1988-06-03
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

EP89109415A

Other languages

German (de)

English (en)

Other versions

EP0344608B1 (fr

Inventor

Werner Zapf

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.)

WERNER ZAPF KG

Original Assignee

WERNER ZAPF KG

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.)

1988-06-03

Filing date

1989-05-24

Publication date

1989-12-06

1989-05-24 Application filed by WERNER ZAPF KG filed Critical WERNER ZAPF KG

1989-05-24 Priority to AT89109415T priority Critical patent/ATE96874T1/de

1989-12-06 Publication of EP0344608A1 publication Critical patent/EP0344608A1/fr

1993-11-03 Application granted granted Critical

1993-11-03 Publication of EP0344608B1 publication Critical patent/EP0344608B1/fr

2009-05-24 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- 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
- E04C5/12—Anchoring devices
- 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

Definitions

the invention relates to a reinforcement arrangement for structural structures made of prestressed concrete according to the preamble of claim 1.
the tensioning elements which have a plastic coating with anti-corrosion grease, are concreted in directly.
the plastic sheathing is removed in the area of the ends of the tensioning elements in order to allow the wedging to act directly on the steel of the tensioning elements within anchor heads that can be concreted in.
the removed area of the plastic sheathing is bridged by a cover sleeve that can be concreted in, which is tightly connected at one end to the respective anchor head and at the other to the adjacent end area of the concreted plastic sheathing of the tensioning element, here, for example, with the aid of a sealing tape wrap.
a so-called tensioning strand which is composed of individual wires and generally consists of corrodible high-strength prestressing steel, serves as the tensioning element within the plastic sheathing.
Corresponding clamping elements can be used within the scope of the invention.
DE-A1 33 35 141 shows such a solution for finished parts supplementing a cylindrical container.
this known construction is not generic because there are no anchor heads concreted into the construction. Rather, in the known construction, the anchor heads together with the wedging are combined in one component (reference number 21), which is axially supported in a recess (reference number 22) in the concrete and has play in relation to the side walls of the recess. The recess is subsequently filled in with plaster. Means for preventing corrosion of the tensioning element in the areas where the ends of the tensioning elements are recessed from their plastic sheathing are not expressly provided.
DE-A1 37 34 954 Another solution for prestressed concrete without bond is shown in DE-A1 37 34 954.
the tendons When prestressing without bond, the tendons are usually outside the concrete cross-section, but are supported against the building; they can be viewed at any time, retensioned and, if necessary, also replaced (DE-A1 37 34 954, column 4, lines 5-10).
Such a construction is provided, for example, in the case of bridge superstructures, which are produced using the cycle sliding method and in which the tensioning elements on local pilaster strips are only partly deflected and partly also anchored.
This construction takes into account in particular bundle tensioning elements in which individual tensioning strands are surrounded by casing tubes filled with anti-corrosion grease.
the bundle of such enveloping tubes is arranged in an enveloping tube which can be filled with injection mortar.
This connects to an anchor head via a cover sleeve, in which the tensioning strands of the tensioning element are braced and fixed on an armature disk.
the anchor head consisting of anchor cup and anchor plate
the exposed ends of the tension strands on the anchor cup are coated with anti-corrosion grease, which is divided against the injection mortar by a separating disc with holes formed by the base of the anchor cup, through which the enveloping hoses of the tension strands individually pass.
This known construction is also not generic because the anchor heads - like the cladding tubes and cover sleeves - are also not concreted in.
the tendons that are only guided at their end points and at deflection points through the concrete components and anchored to them are first inserted into the cladding tube, then on both sides of the building construction, the anchor pots are pushed onto the free strand ends. Only after they have been installed is the armature disc placed on the free strand ends pushed and only supported on the structure. The strand ends are freely accessible during the entire assembly process and can be threaded individually into the anchor cup or into the armature disk.
the base of the anchor pot also forms only a rough separation between the anti-corrosion grease filled in the anchor pot and the injection mortar within the cladding tube.
the invention has set itself the task in buildings, which consist of several individual components or sections are concreted and in which anchor heads are already concreted as end parts in the manufacture of the parts, the problem-free subsequent To allow centric insertion of the ends of the tensioning elements into the anchor heads and also to reliably protect areas filled with corrosion protection grease against influences from neighboring areas.
the insertion area of the tensioning element into the anchor head and the area of the separation between the anti-corrosion grease around the free ends of the tensioning element and the injection mortar within the cladding tube are inaccessible from the outside. Nevertheless under these difficult conditions, it is possible to reliably insert the clamping element and seal between the injection mortar and the anti-corrosion grease.
the tensioning element is first inserted from one end of the anchor head into a sealing area and pushed through this area with its entire length, so that at the other end of the cladding tube it is pushed with its end again through a sealing area and then inserted centrally into the other anchor head to become.
the cover sleeve fulfills the additional function of a sliding guide when threading in or threading through as well as the task of reliably separating injection mortar and anti-corrosion grease.
Concreting cladding pipes is known per se (cf. e.g. DE-A1 33 35 141 already mentioned).
cover sleeve as a sliding guide ensures in particular that the ends of the tensioning elements, which are still partially provided with their plastic sheathing, can be guided centrally without kinks into the anchor head that can be concreted in when subsequently inserted through the respective cladding tube.
the design of the cover sleeve as an elastic, flexible seal ensures in particular that injection mortar cannot penetrate from the second space into the first space to be refilled with anti-corrosion grease. In this way, the optimal case is achieved in particular that the entire corrosion-prone clamping element remains coated with anti-corrosion grease even in the installed state, specifically within the areas where the original plastic coating has remained, with the original anti-corrosion grease, and in the areas where the plastic jacket is recessed, with subsequently applied corrosion protection grease.
the cover sleeve is no longer connected to the plastic sheathing of the respective clamping element, as in the case of the generic reinforcement arrangement, but rather to the respective cladding tube.
the cover sleeve is provided with the additional functions of the sliding guide and the sealing separating element; in the arrangement according to DE-A1 33 35 141, such cover sleeves are not provided at all, and in the arrangement according to DE-A1 37 34 954 they do not provide any comparable additional function.
Claims 2 and 3 describe advantageous designs of the cover sleeves, in the optional case of claim 3 also in connection with the cladding tube, as sliding guides, while claims 4 to 10 describe advantageous designs of the cover sleeves as separating elements.
the features according to claim 11 make it easier to fill the cladding tubes completely with injection mortar, and with a suitable arrangement the entire second intermediate spaces up to the area of the separating element or the first or only sealing element in the area of the cover sleeve.
the features of claims 12 and 13 accordingly facilitate the complete filling of the first intermediate space with anti-corrosion grease without undesirable air pockets, the features of claim 13 describing particularly advantageous designs for the grease filling line.
Claim 14 addresses the case that both ends of the respective clamping elements are anchored in the same way in the sense of the invention. This preferably applies according to claim 15 also in the event that the building structure has at least two precast concrete parts, in which case the two ends of the respective clamping elements are anchored to different precast concrete parts.
Claim 16 transfers an arrangement already known from DE-A1 33 35 141 for cylindrical containers to the reinforcement arrangement according to the invention.
claim 17 takes into account that during the pretensioning of a non-concreted tensioning element, axial changes in position of the plastic jacket in the region of the ends of the tensioning element can occur of considerable length, which require considerable lengths of the cover sleeves designed according to the invention. In particular, it must be ensured that, under all operating conditions that occur, the edge of the plastic sheathing in front of the recessed end area does not already end in the second space that is not to be refilled with injection mortar. Tolerances can occur in particular if several precast concrete parts are clamped together by the same clamping elements.
the precast concrete part is usually provided with a plurality of clamping elements in the usual way.
Fig. 1 shows only the arrangement in the region of a single clamping element.
An anchor head 4 made of high-pressure-resistant material, in particular steel, cast steel or the like, which connects to the bottom of a frustoconical recess 6 of an outer surface 8 of the precast concrete part;
a cover sleeve 10 which is tightly connected to it, in particular fastened, made of a material which absorbs the concrete pressure, for example sufficiently pressure-resistant plastic;
a cover tube 14, which continues the cover sleeve at the other end thereof in the connection plane or connection zone 12 and which, in a manner not shown, extends to an outer surface thereof approximately opposite the outer surface 8 of the prefabricated concrete part, also consists of material which resists the concrete pressure, for example plastic, and in the connection level or connection zone 12 is tightly connected to the cover sleeve 10, in particular is fastened thereto; and one connected to an opening 16 in the cover sleeve 10 and up to a filling opening 1 in the outer
a vent channel 20 leading to the surface of the precast concrete element, which also communicates with an opening 22 of the cover sleeve 10, is recessed in the concrete 2 of the precast element by means of a stamp (not shown) which can be pulled out after the concreting.
the venting channel 20 recessed in the concrete 2 can also be formed in a similarly represented manner by a venting line concreted in the concrete, but this means increased material requirements.
the anchor head 4 can be provided with two ring flanges 24 and 26 which follow one another in the axial direction of the anchor head and of which, in the example shown, the ring flange 24 which is closer to the outer surface 8 has a larger diameter than the second ring flange 26 which is also further away from this outer surface 8. Up to a central area of the bottom of the recess 6, the anchor head only extends with a cylindrical extension 30.
the anchor head 4 can also be provided, e.g. with only one flange (see Fig. 3).
the flanges can also be rectangular or flattened on the circular shape.
a central opening 32 with several sections runs axially symmetrically within the anchor head 4.
a cylindrical input part 34 formed in the extension 30 follows. This is adjoined axially on the inside by a wedging cone 36 tapering towards the inside of the prefabricated part, the largest diameter of which is smaller than that of the input part 34.
the wedging cone 36 is followed by a cylindrical connecting section 38 inside the precast concrete part, which finally connects to that of the recess 6 opposite end of the anchor head 4 merges into an insertion section 42 which widens in a funnel shape towards its radially extending end surface 40.
a tapped-on section 46 of the cover sleeve 10 is tightly fastened in a complementary embodiment.
the narrow end of the tulip-on section 46 continues in a cylindrical section 48, which in turn forms a bell-shaped or conical transition region 50 at its other end, which is tightly fastened in the connection plane or connection zone 12 to the subsequent end of the cladding tube 14.
a butt joint e.g.
Butt welding that is, a connection in a connection level.
a bead-like thickening (not shown) can also be provided on the lateral surface 44, via which the section 46 of the cover sleeve 10 can be pressed with a slight expansion.
the cladding tube 14 continues with a constant cylindrical cross section in the concrete 2.
the interiors of the cladding tube 14 and the cover sleeve 10 and the central opening 32 of the anchor head 4 are arranged coaxially and axially symmetrical. It is not excluded that the common axis has a curved course at least in partial areas, in particular in the area of the cladding tube 14; however, the interior of the cover sleeve 10 and the central opening 32 are preferably straight, in particular along a common straight line.
the central opening 32 in the anchor head and the interior of the cover sleeve 10 and cladding tube 14 serve to receive a tensioning element 52 for the subsequent production of the prestressing of the prestressed concrete.
This tensioning element 52 consists of a tensioning strand 54 made of a steel alloy which is inherently sensitive to corrosion and which is prefabricated with a plastic sheath 56.
the wire is embedded in anti-corrosion grease between the wire 54 and the plastic sheath 56 in a manner not shown.
the plastic sheath 56 is recessed or removed on the prefabricated part in order to be able to reliably tension the tensioning element by direct contact of the gripping tools of the tensioning press with the material of the strand 54.
the recess 58 of the plastic sheath begins at its end 60 and extends to the free end of the stranded wire 54 guided through the anchor head 4.
the end of the stranded wire 54 can be wedged in the usual manner by means of a wedge 62 that runs along the stranded wire 54 after the Preload of the tensioning element is displaceable, can be braced against the wedging cone 36 of the anchor head in a frictional or positive manner.
a form-fitting bracing is possible in the case of teeth on the inner surface of the wedging, the teeth penetrating into the steel of the strand 54.
the cylindrical section 48 of the cover sleeve 10 has only a slightly larger guide diameter than the outer diameter of the plastic casing 56 of the tensioning element 52, so that this cylindrical section 48 acts as a guide for the area of the non-worn plastic casing 56 of the strand 54 which still protrudes into the cover sleeve.
shorter regions of section 48 in particular in front of and behind the sealing element, can also be used alone. be designed as a suspension, while the other areas have a slightly larger diameter (for example, for better transport of the anti-corrosion grease to be refilled).
the widening transition region 50 acts as an insertion aid for the tensioning element entering the cover sleeve 10 from the cladding tube 14, and the insertion section 42 on the anchor head serves as an insertion aid for the strand 54 of the tensioning element 52 which has already been freed from the plastic sheathing.
the cladding tube 14 in turn has a considerable radial play 64 with respect to the plastic sheath 56 of the strand 54. Accordingly, the guide diameter of the cylindrical section 48 of the cover sleeve 10 is significantly smaller than the inside diameter of the cladding tube 14.
the arrangement shown is usually not realized with which the tensioning element runs centrally in the cladding tube, but rather the tensioning element usually lies against a wall of the cladding tube, in particular when the latter extends in a curved manner.
the cylindrical section 48 of the cladding tube 14 is of divided design.
two pot-shaped connecting sleeves 66 and 68 can be provided which are mutually overlapping with offset sections.
the two radially widened connecting sleeves 66 and 68 can also be arranged with their cylindrical side wall parts abutting one another.
An annular radial recess is formed within the two connecting sleeves 66 and 68, in which a sealing element 70 made of a conventional sealing material, for example rubber or a corresponding plastic substitute, is received in a form-fitting manner.
the sealing element 70 is against axial displacement Exercise kept safe.
the sealing element has a sleeve shape.
the outer surface of the sealing sleeve seals the joint between the two connecting sleeves 66 and 68 against the concrete 2.
the central opening of the sleeve has an internal diameter such that it can still serve as a guide for the plastic casing 56 with reliable sealing.
the central opening of the sealing element 70 is provided at both ends with a bevel 72 that widens outward in a funnel shape, in order from both sides To be able to push the clamping element with the casing through the sealing element 70.
the sealing element 70 also has the task of separating a first intermediate space 74 in the region of the side of the tensioning element 52 facing the side wall 8 from a second intermediate space 76, in particular between the plastic jacket 56 and the cladding tube 14.
the first intermediate space 74 is subsequently filled with anti-corrosion grease after the tensioning element has been inserted and its bracing in the anchor head 4, while the second intermediate space 76, which is essentially formed by the play 64 between the plastic casing 56 and the cladding tube 14, can subsequently be filled with injection mortar but does not have to. It is essential that the separation point between the two spaces 74 and 76 within the cover sleeve 10 still lies in the area where the strand 54 of the tensioning element 52 is still provided with its plastic sheath 56.
the opening 22 on the cover sleeve 10, which communicates with the ventilation channel 20, is expediently arranged as close as possible to the sealing element 70 in order to prevent air pockets from remaining when the injection mortar penetrates into the second intermediate space 76.
this opening 22 is formed in the transition region 50 of the cover sleeve 10, expediently in the vicinity of its narrow diameter.
the opening 16, which is connected to the filling line 18, is arranged on the other side of the sealing element 70, in order to be able to subsequently inject corrosion protection grease into the first intermediate space through the filling line 18. It should be taken into account that the wedging 62 hinders direct injection, but enables ventilation.
the sleeve-shaped single sealing element 70 is here divided into two commercially available O-sealing rings 70a, 70b, one of which is held in a form-fitting manner in one of the connecting sleeves 66 and 68, respectively.
the connection sleeves are shown here abutting with a butt joint 78, which by sealing means, not shown, e.g. a sealing tape wrap, is appropriately covered separately against the concrete 2.
the two O-rings 70a and 70b are axially spaced, but can also adjoin one another axially.
a one-piece design of the cover sleeve 10 with only one embossed groove for receiving the sealing means is also conceivable.
Fig. 3 shows a modified embodiment of the anchor head 4.
a bore 80 is provided in flange 24, to which the filling line or the filling channel 18 is connected.
the filling line or the filling channel preferably runs approximately straight up to the approximately axially extending opening 16 in a lateral extension 82 of the cover sleeve 10.
aids for introducing the anti-corrosion grease, for example lubricating heads, can be provided (not shown here) be.

Landscapes

Engineering & Computer Science (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Reinforcement Elements For Buildings (AREA)
Rod-Shaped Construction Members (AREA)
Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Panels For Use In Building Construction (AREA)

EP89109415A 1988-06-03 1989-05-24 Elément de montage en béton pour constructions en béton précontraint Expired - Lifetime EP0344608B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT89109415T ATE96874T1 (de)	1988-06-03	1989-05-24	Betonfertigteil fuer die herstellung von baukonstruktionen aus spannbeton.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3819023A DE3819023A1 (de)	1988-06-03	1988-06-03	Bewehrungsanordnung fuer baukonstruktionen aus spannbeton
DE3819023		1988-06-03

Publications (2)

Publication Number	Publication Date
EP0344608A1 true EP0344608A1 (fr)	1989-12-06
EP0344608B1 EP0344608B1 (fr)	1993-11-03

Family

ID=6355842

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89109415A Expired - Lifetime EP0344608B1 (fr)	1988-06-03	1989-05-24	Elément de montage en béton pour constructions en béton précontraint

Country Status (3)

Country	Link
EP (1)	EP0344608B1 (fr)
AT (1)	ATE96874T1 (fr)
DE (2)	DE3819023A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0563006A1 (fr) *	1992-03-24	1993-09-29	VSL International AG	Elément de répartition des efforts pour un ancrage
WO1998033993A1 (fr) *	1997-01-31	1998-08-06	Vsl International Ag	Appareil et procede d'application de post-contraintes de traction

Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2067996A5 (fr) *	1969-11-25	1971-08-20	Dursapt Henri
US3676031A (en) *	1970-05-28	1972-07-11	Conenco Intern Ltd	Post-tensioning system
FR2131589A5 (fr) *	1971-03-27	1972-11-10	Dyckerhoff & Widmann Ag
EP0122860A2 (fr) *	1983-04-19	1984-10-24	Freyssinet International (Stup)	Perfectionnements aux procédés et dispositifs pour graisser les extrémités d'armatures de précontrainte
FR2554149A1 (fr) *	1983-10-28	1985-05-03	Dyckerhoff & Widmann Ag	Organe de traction libre pouvant etre mis en tension, comprenant un ou plusieurs elements de traction tels que des barres, des cables ou des filins d'acier
DE3437107A1 (de) *	1984-10-10	1986-04-10	Dyckerhoff & Widmann AG, 8000 München	Zugglied, insbesondere schraegseil fuer eine schraegseilbruecke
EP0190989A1 (fr) *	1985-01-17	1986-08-13	VSL International AG	Agencement d'ancrage intermédiaire pour la précontrainte d'éléments de construction qui sont bâtis en plusieurs étapes et un procédé pour l'établissement d'un tel agencement d'ancrage intermédiaire
DE8800881U1 (de) *	1988-01-20	1988-03-17	Dyckerhoff & Widmann AG, 8000 München	Korrosionsgeschütztes Zugglied, vornehmlich Spannglied für Spannbeton ohne Verbund
DE8805340U1 (de) *	1988-04-22	1988-06-01	Dyckerhoff & Widmann AG, 8000 München	Zugglied, insbesondere Spannglied für Spannbeton ohne Verbund

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2511721A1 (fr) *	1981-08-21	1983-02-25	Freyssinet Int Stup	Dispositif de raccordement incurve entre deux portions rectilignes d'un cable tendu
DE3339125A1 (de) *	1983-10-28	1985-05-15	Philipp Holzmann Ag, 6000 Frankfurt	Zweiteilige keilverankerung fuer spannglieder und vorrichtung mit einer hydraulikpresse zur montage eines festankers aus einer solchen keilverankerung
DE3734954A1 (de) *	1987-03-13	1988-04-07	Dyckerhoff & Widmann Ag	Korrosionsgeschuetztes zugglied, vornehmlich spannglied fuer spannbeton ohne verbund und verfahren zu seinem einbau

1988
- 1988-06-03 DE DE3819023A patent/DE3819023A1/de not_active Withdrawn
1989
- 1989-05-24 DE DE89109415T patent/DE58906074D1/de not_active Expired - Fee Related
- 1989-05-24 EP EP89109415A patent/EP0344608B1/fr not_active Expired - Lifetime
- 1989-05-24 AT AT89109415T patent/ATE96874T1/de active

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2067996A5 (fr) *	1969-11-25	1971-08-20	Dursapt Henri
US3676031A (en) *	1970-05-28	1972-07-11	Conenco Intern Ltd	Post-tensioning system
FR2131589A5 (fr) *	1971-03-27	1972-11-10	Dyckerhoff & Widmann Ag
EP0122860A2 (fr) *	1983-04-19	1984-10-24	Freyssinet International (Stup)	Perfectionnements aux procédés et dispositifs pour graisser les extrémités d'armatures de précontrainte
FR2554149A1 (fr) *	1983-10-28	1985-05-03	Dyckerhoff & Widmann Ag	Organe de traction libre pouvant etre mis en tension, comprenant un ou plusieurs elements de traction tels que des barres, des cables ou des filins d'acier
DE3437107A1 (de) *	1984-10-10	1986-04-10	Dyckerhoff & Widmann AG, 8000 München	Zugglied, insbesondere schraegseil fuer eine schraegseilbruecke
EP0190989A1 (fr) *	1985-01-17	1986-08-13	VSL International AG	Agencement d'ancrage intermédiaire pour la précontrainte d'éléments de construction qui sont bâtis en plusieurs étapes et un procédé pour l'établissement d'un tel agencement d'ancrage intermédiaire
DE8800881U1 (de) *	1988-01-20	1988-03-17	Dyckerhoff & Widmann AG, 8000 München	Korrosionsgeschütztes Zugglied, vornehmlich Spannglied für Spannbeton ohne Verbund
DE8805340U1 (de) *	1988-04-22	1988-06-01	Dyckerhoff & Widmann AG, 8000 München	Zugglied, insbesondere Spannglied für Spannbeton ohne Verbund

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0563006A1 (fr) *	1992-03-24	1993-09-29	VSL International AG	Elément de répartition des efforts pour un ancrage
WO1998033993A1 (fr) *	1997-01-31	1998-08-06	Vsl International Ag	Appareil et procede d'application de post-contraintes de traction
AU727967B2 (en) *	1997-01-31	2001-01-04	Vsl International Ag	Post-tensioning apparatus and method

Also Published As

Publication number	Publication date
DE58906074D1 (de)	1993-12-09
ATE96874T1 (de)	1993-11-15
EP0344608B1 (fr)	1993-11-03
DE3819023A1 (de)	1989-12-07

Publication	Publication Date	Title
EP0485706B1 (fr)	1994-12-14	Réseau d'alimentation en eau sanitaire ou de chauffage constitué complètement ou principalement de matière plastique, plus specialement en polypropylène
EP2085521B1 (fr)	2015-08-26	Ancrage de terre ou de rocher doté d'une articulation de tirant d'ancrage composée d'un ou plusieurs éléments individuels ayant une formation de tête d'ancrage protégée contre la corrosion
DE3734954C2 (fr)	1992-07-09
CH651619A5 (de)	1985-09-30	Wiedergewinnbares schalungsteil fuer den verankerungsbereich eines spannglieds in einem betonbauteil.
CH676617A5 (fr)	1991-02-15
DE19528999C2 (de)	2000-01-05	Verbindung von Spannbetonelementen und Verfahren hierzu
DE4034953C2 (de)	1996-01-25	Rohrverbund aus Betonverbundrohren mit einem als Ummantelung dienenden Betonrohr und einem als Innenauskleidung des Betonrohres dienenden Kunststoffrohr
DE4118897C2 (fr)	1993-08-12
WO2008053050A2 (fr)	2008-05-08	Raccord pour un tuyau
DE19503346A1 (de)	1996-08-08	Rohrbauteil
DE3801451A1 (de)	1989-08-03	Korrosionsgeschuetztes zugglied, vornehmlich spannglied fuer spannbeton ohne verbund
CH686196A5 (de)	1996-01-31	Distanzrohr.
DE102006003216A1 (de)	2007-07-26	Ankerkopfhaltung
EP0344608B1 (fr)	1993-11-03	Elément de montage en béton pour constructions en béton précontraint
DE19700280C2 (de)	2001-03-08	Schalungshilfsteil für eine Gewindehülse
CH711118A1 (de)	2016-11-30	Rohrmuffe für Well- und Glattrohre.
DE7046337U (de)	1971-05-06	Tunnelauskleidungssegment
DE10161092B4 (de)	2004-04-29	Vorrichtung zum Verbinden zweier Rohrstücke mittels einer Bajonettverschlussanordnung
DE10119988B4 (de)	2009-03-05	Verdübelungs-Vorrichtung für die Ringelemente einer Tübbingauskleidung für unterirdische Bauwerke
EP0537377A1 (fr)	1993-04-21	Raccord de tuyaux
DE8707566U1 (de)	1987-07-16	Rohrdurchführung
DE29721224U1 (de)	1998-01-22	Leitungsverbindung
DE8808810U1 (de)	1988-09-22	Bewehrung für Baukonstruktionen aus Spannbeton
DE7326166U (de)	1973-11-22	Schalungsabstandhalter
DE2322991A1 (de)	1973-11-22	Verankerung fuer seile oder dergleichen, insbesondere fuer die spannglieder im spannbeton-bau

Legal Events

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1989-10-21	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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