EP2183446B1 - Profilé d'ancrage pour boucles de câble - Google Patents

Profilé d'ancrage pour boucles de câble Download PDF

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Publication number
EP2183446B1
EP2183446B1 EP08801436.0A EP08801436A EP2183446B1 EP 2183446 B1 EP2183446 B1 EP 2183446B1 EP 08801436 A EP08801436 A EP 08801436A EP 2183446 B1 EP2183446 B1 EP 2183446B1
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EP
European Patent Office
Prior art keywords
rail
base plate
cavities
rails
cable loops
Prior art date
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Active
Application number
EP08801436.0A
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German (de)
English (en)
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EP2183446A1 (fr
Inventor
Martin Philipp
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Philipp GmbH
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Philipp GmbH
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • E04G21/126—Reinforcement continuity box for cable loops

Definitions

  • the present invention relates to a rail for receiving cable loops for the connection of prefabricated components, consisting of a rail with a U-shaped profile, which has a base plate and two angled side walls, with openings in the base plate of the U-profile for the implementation of cable loops and with a stop in the prefabricated component improving surface structure in the form of projecting and / or recessed wall sections in the base plate and / or on the side walls of the U-profile.
  • side plates For better distinction of side walls of other components, the side walls of the cross-sectionally U-shaped rails are hereinafter referred to as "side plates" without that a specific geometry should be defined.
  • a corresponding rail is known, for example from the WO 2007/031128 ,
  • the prefabricated components in particular precast concrete walls, and supports are for rapid and precise connection with each other along their front and side surfaces, especially along their vertical
  • Extension often equipped with so-called rope loops.
  • the prefabricated component is made, in addition to a conventional steel reinforcement z.
  • the folded ends of a piece far eg 15 to 50 cm
  • This end face is generally structured in the form of a groove extending in the longitudinal direction of the end face, wherein the loop of the rope originates from a groove base and possibly also extends a little way beyond the free edge of the precast concrete part.
  • An opposing component which in turn has a corresponding groove in an end surface or side surface and cable loops protruding therefrom, is joined flush with the first-mentioned component along the end faces or groove openings having the cable loops, wherein the projecting ends of the cable loops of the one part into the groove-shaped recess engage the opposite part and the cable loops of both assembled components overlap each other. Then, an additional reinforcement is inserted parallel to the end faces of the finished parts in the grooves or between the grooves of the mutually facing end faces and at the same time passes through the cable loops of both components, which are secured in this way.
  • both grooves are filled with a potting compound or a grout, so that the two finished parts are then firmly connected to each other, the cable loops and extending through the cable loops reinforcing rod next to the mortar compound form an additional, extending over both components of time extending reinforcement, which ensures a secure hold between these two components.
  • the base plates and side plates of the U-rails usually also projecting and / or recessed surface sections to improve the grip of the rail in the concrete.
  • the rope loops are folded into the defined by the rail groove and fixed in this position before attachment in the formwork and during concreting or during the subsequent transport of the finished parts inward by about 90 ° that they do not protrude over the free edges or the opening of the U-profile.
  • a the open side of the U-profile covering plate which is clamped onto the open U-profile and, for example, can be attached directly to a formwork inside.
  • Such rails are usually made of galvanized sheet steel or possibly (especially in the form of shorter rope loop boxes) made of plastic. However, these materials have only a relatively poor adhesion to concrete per se.
  • the cable loops contribute to an improvement of the lateral force carrying capacity, but the lack of grip of the rails on the concrete or the grout can only limited by increasing the number of loops and density (more rope loops at shorter intervals) compensate, what also the rails and the overall system is more expensive.
  • a storage device for reinforcing bars comprising a bottom part and a lid part, which has openings in a cover wall for the reinforcing bars.
  • a number of connectors is provided, each having a connector connection components as a plug-in opening and a tongue, the free end can be passed through the insertion opening and deformed to achieve a positive connection, and wherein in each case a connection component on the bottom part and the other connection component is provided on the cover part.
  • the WO 2007/031128 A1 shows a connecting device for the transverse force-locking connection of concrete components, in particular precast concrete components.
  • the apparatus comprises an elongate storage box for insertion into an end face of the components comprising a bottom and at least two side walls extending in a longitudinal direction of the floor, at least one flexible reinforcement loop element receivable and deflectable within the storage box the floor has a bottom profile with longitudinally alternating groups of floor projections and floor recesses, each group having at least one floor projection or at least one floor recess.
  • the German Utility Model DE 297 23 990 U1 relates to a device for bonding precast concrete elements, consisting of at least one cable loop, which is anchored at one end in the precast concrete part and the other, loop-like end cooperates with an inserted into the end face of the precast concrete holding part to the cable loop during the manufacture of precast concrete right-angled elastic bend and release for the composite, wherein the holding part is formed as an elongated, in cross-section substantially uniform sheet metal box.
  • the box bottom has one or more openings for the cable loop, wherein the side walls of the sheet metal box are obtained by folding to give the sheet metal box in cross section a U-shape and wherein the end covers are obtained by bending.
  • the German utility model shows a device for insertion into a formwork for a concrete part, with a box-like, closable by a lid made of metal rebar storage element, wherein at least the side walls and the bottom are profiled and made of a one-piece blank.
  • the present invention has the object, a rail of the type mentioned in such a way that it is suitable for receiving larger loads, ie at a given number of rope loops in the on the rope loops and on the rope loops holding Rail larger forces can be introduced into the prefabricated components in question, and especially the lateral force capacity is improved, so that the relevant Connection can accommodate higher static loads even without increasing the number of cable loops.
  • At least in the base plate of the U-profile in addition to the openings for the cable loops at least one open-sided cavity is provided, measured in the plane of the base plate cross-sectional area at least 4 cm 2 and its minimum length, width and depth dimension in each case is at least 1 cm, wherein the at least one cavity is formed by an opening in the base plate and an open at its bottom and otherwise closed hollow body, which is fittingly inserted into the opening provided in the base plate.
  • Such cavities completely or partially replace the conventionally provided surface structure or they are provided in addition to such a surface structure.
  • cavities are now provided with a relatively large cross-section and especially a relatively large depth of the base plate of the rail when pouring the rail with concrete through this be filled or left blank so that the concrete at least along the respective groove bottom massive cams or cavities with a cross-sectional area of at least 4 cm 2 and a depth of at least 1 cm is formed, which engage in the cavities of the rail, or by grout in the rail to be filled, thus reach through the base plate of the rail and prevent displacement of the rail in the longitudinal direction or a release of the rail of the concrete much better than the known and formed by deforming or punching the rail side walls and base platesbrunstrukt acids.
  • the respective cavities in the plan view are rectangular and have according to an embodiment of the invention, minimum dimensions of 2 x 3 cm 2, in other embodiments, from 4 x 3 cm 2 and in one embodiment about 10 x 3 cm 2, or even 10 x 5 cm 2 , wherein the respectively first indicated dimension in the longitudinal direction of the rail and the second dimension in the transverse direction of the rail is measured.
  • the respective cavities are formed by an opening in the base plate and an open at its bottom and otherwise closed hollow body, fitting in the in the base plate provided opening is inserted.
  • the open side of the hollow body then coincides more or less with the opening in the base plate and the hollow body extends into the rest of the U-profile of the rail (or out of this).
  • the hollow body may be, for example, an approximately cuboid plastic box, which optionally has along its opening edge a small flange which hangs in the mounted state on the edge of the corresponding opening in the base plate. Locking elements which latch behind the edge of the base plate opening, according to one embodiment, can fix the hollow body at the edge of the base plate opening.
  • the cams in a desired shape and size is provided according to an embodiment of the invention that the cavity extends from its edge to the base plate in the interior of the rail extending side walls and one to the inside the bottom of the rail has closed.
  • These side walls and the floor then exactly define the geometric structure of a concrete cam engaging in the base plate of the rail.
  • the depth dimension of such a cam should be at least 10 mm, so that consequently the height of the side walls measured perpendicular to the edges of the cavity should also be at least about 10 mm and according to one embodiment at least 20 mm.
  • the cavity open at one side may also be provided on the base plate or side plates of the U-profile such that its side walls extend outwardly from the base plate (s).
  • the base plate of the rails by cross-cam from grout, which extend into the groove bottom (or groove walls) on the face or side surface of a precast concrete part and in this way also the transverse force carrying capacity by improving the composite rail Increase finished component as in the embodiment described above.
  • this embodiment is subject to substantially the same operating principle as a rail with inwardly projecting side walls of the cavity or cavities and should therefore be included in the scope of the present invention, it is less preferred because of a correspondingly higher consumption of expensive grout.
  • a plurality of cavities in the base plate of the rail are provided at intervals from each other, again according to a particular embodiment of the invention, the entire cross-sectional area of the cavities or the resulting cams at least 5% better at least 10% of the total area of the base plate makes up and preferably up to about one third of the area of the baseplate.
  • adjacent cavities between each of which a cable loop is arranged, at least one distance from each other, which corresponds to the length of the protruding from the base plate portion of the cable loop and preferably at least 10% greater than this length.
  • the cable loop can then, when it passes through cavities through the base plate, are folded into a position in which the defined by the cable loop level is parallel to the base plate, so that the cable loop is completely absorbed between the side walls and not from the open top of Rail protrudes.
  • This cable loop position is usually maintained in the casing and also in the transport of the plates, as long as the cable loops are not needed, for example, to suspend and transport the plates and as long as they do not serve the connection with adjacent prefabricated components.
  • the cavities according to the invention are therefore spaced apart so far that where there is a cable loop between two cavities, enough space for folding or bending the cable loop between the adjacent cavities is present.
  • the clear distance between adjacent cavities, between which a cable loop is arranged is at least twice the length of the cavities measured in this direction.
  • the cable loops and the cable loop holders could also be designed so that the Rope loops folded down on the top of closely adjacent cavities and held in this position, since in this embodiment, above the inside of the U-profile lying bottom of the cavities sufficient space for receiving the cable loops is present without this over the edge of the U-profile Protruding profile.
  • the cavities could also be arranged at a closer distance from each other and to the cable loops and claim, for example, in the sum of a third or more of the total length of the rail.
  • the cavities make up in their sum less than half the length of the base plate and detect a maximum of one third of the base plate based on the surface of the base plate.
  • a favorable ratio of retaining cam or cavities to remaining rail base area is obtained if the total cross-sectional area of all cavities at the bottom of a rail between 15% and 25% of the total base surface of the base plate (including the recess).
  • the side walls of the cavity may, according to one embodiment, extend perpendicular to the base plate, but according to another embodiment they may also enclose an angle with the base plate which, measured in the same direction, may be between 60 ° and 120 °.
  • opposing side walls of the recess may have an opposite inclination to the base plate, which means that the measured in one direction angle, which includes a side wall with the base plate is smaller than 90 °, while the corresponding angle of the opposite side is greater than 90 ° is.
  • the cavities and the cam formed therefrom optionally have a trapezoidal or dovetail cross-section.
  • precast concrete slabs or walls are cast with horizontally or vertically oriented rail
  • vertically arranged walls are inclined to each other so that they form a dovetail profile, ie that the walls of the cavities effectively form undercuts.
  • the walls defining the dovetail profile are those which are substantially vertically aligned during the casting of a corresponding panel, while the walls defining the trapezoidal profile have horizontally extending edges and are arranged vertically one above the other. This avoids the formation of air bubbles in the undercuts in the cavities when casting corresponding concrete slabs, which would then not be filled with concrete.
  • corresponding inclined side walls can of course be combined with the base plate vertical side walls or opposite side walls can also be inclined to the same side, so that a parallelogram forms or the inclination angle can both be greater or both smaller than 90 °, but from each other to be different.
  • undercuts should always be formed so that they are not defined during the casting of a concrete slab through the respective top side wall of a recess, in order to avoid the formation of air bubbles in the undercut.
  • corresponding cavities as described for the base plate, could also be formed in the side panels of a U-profile rail.
  • the cavities also need not necessarily be rectangular, but they can be arbitrarily polygonal or circular or elliptical. Even with such cross-sectional shapes can be produced by appropriate inclination of the side walls undercuts and tilt the side walls as a whole so that in any case a lying at the top casting section defines no undercut to avoid formation of air bubbles.
  • Another advantage of the relatively large cavities in the rails of the present invention also lies in the fact that it is possible to use coarse-grained and thus cheaper aggregates both for the concrete and for the grouting mortar, since the concrete or mortar can still fill the large-volume cavities without any problem which would be problematic with smaller structures.
  • the rail has a plurality of cavities distributed over the length of the rail, wherein the rail is formed asymmetrically with respect to the measured to the two ends of the rail spacings of the cavities.
  • the clear distances of the cavities to one of the rail ends should preferably differ from the corresponding distance-closest clearances of the cavities to the other rail end by an amount which corresponds at least to the length of the cavities, measured in the rail longitudinal direction.
  • the present invention also includes a combination of two such rails for the connection of two adjacent prefabricated components, in which the opposing rails adjacent prefabricated components in their longitudinal alignment are arranged rotated relative to each other by 180 °, so that offset the cavities of the opposite rails are arranged to each other.
  • the so interconnected prefabricated components have a significantly improved transverse load capacity parallel to joint than when the cavities of the rails and thus corresponding retaining cams are arranged on both sides of the joint exactly opposite each other, as in longitudinally symmetrical rails or symmetrical, non-staggered arrangement of the retaining cams on the opposite sides of the connecting joint would be the case.
  • a cavity of a rail is located exactly in the middle between two cavities of the other, opposite rail, wherein the cavities along a rail are preferably evenly spaced from each other.
  • this also includes combinations of rails or interconnected prefabricated components of the present invention, in which the rails, although with respect to their longitudinal direction symmetrically arranged cavities, but are arranged correspondingly offset on the end faces of the connected prefabricated components, wherein Overall, this purpose a little shorter than the associated end faces of prefabricated components or be shortened accordingly.
  • a variant of the invention is preferred in which the rails are nonetheless essentially symmetrical with respect to the distances of the passage points of the cable loops to the respective ends of the rail.
  • the concrete cams are arranged offset from one another at the bottom of the two opposite rails in the rail longitudinal direction, the (unfolded) opposite cable loops should still be in pairs at the same height. This is ensured by the substantially symmetrical formation of the distances of the cable loop passage points on the base plate of the rails to the ends of the rails.
  • the invention also provides a combination of two rails for the connection of two adjacent prefabricated components, in which the side plates of one rail have a height measured perpendicular to the base plate, which is at least twice the height of the side walls of the other rail.
  • the side plates of one rail should have a height of at least 50 mm, and the side plates of the other rail should have a height of at most 30 mm.
  • the present invention also includes precast concrete elements made with the rails and combinations of rails as defined in the claims.
  • FIG. 1 a generally designated 10 rail, which has a substantially U-shaped profile (as more clearly in FIG. 3 recognizes) and consists of a base plate 11 and two substantially perpendicular thereto angled side plates 12a, 12b.
  • the base plate 11 has on the one hand openings for receiving cable loops 7, wherein corresponding holding parts 15 are used for the cable loops 7, which are generally made of plastic, in the openings and fill them substantially.
  • the cable loops are formed by short steel cable sections 8, which are doubled and connected with their free ends firmly connected to each other via a corresponding sleeve, said these free ends after the Pouring the rail 10 with a concrete slab hineinertiern in the interior of the concrete slab and the cable loops 7 protrude from a side face of the concrete slab.
  • cavities 1 in the form of depressions or cavities of the base plate 11 are still provided, which extend from the bottom of the rail forth in the interior of the U-profile.
  • cavities are formed by a corresponding, substantially rectangular opening in the base plate 11 and on the other by an open at the bottom and otherwise substantially cuboid plastic box, which consists of side walls 2, 3, 4, 5 and a bottom 6, so that there is a closed on five sides, cuboid body, which lies with its open side substantially in the plane of the base plate 11 and thus forms a protruding into the interior of the U-profile rail 10 cavity 1.
  • FIG. 2 you recognize the already in FIG. 1 in perspective also shown rail 10 in a likewise perspective rear view of the underside of the bottom 11 forth. Again, one recognizes again the base plate 11 and a side wall 12a of the rail, the holding element 15 for the cable loops 7 and the cavity 1 with bottom 6 and visible side walls 2, 3, wherein the side walls 4, 5 are hidden due to the perspective view.
  • additional support members 31 which are arranged so that they engage behind the edge of the plastic box receiving opening of the bottom plate 11 and thus hold this plastic box on the rail, wherein the edge of the plastic box z. B. may have a small flange 32 which rests tightly against the underside of the bottom plate 11.
  • FIG. 3 in turn, one recognizes the rail 10 in cross section or in a frontal view accordingly FIG. 1 or FIG. 2 from underneath.
  • a substantially cuboid plastic box 1 which side walls 2, 3, 5 (and a non-visible side wall 4, which is opposite to the side wall 2) and a bottom 6 again.
  • the small flange on the plastic box which defines the cavity 1 and on the outside of the side walls 3, 5 barbs or spring elements 31 at a close distance to the flange 32, which engage behind the edge of the opening in the bottom plate and thus hold this plastic box securely and substantially tightly in the opening of the bottom plate 11.
  • the side plates 12a, 12b of the U-profile 10 have an additional profiling or bulging, which ensures a better grip of the rail in the end face of a concrete slab.
  • FIG. 4 shows the cross section or a front view similar to FIG. 3 for a second variant of a rail 20.
  • This rail 20 differs from the rail 10 substantially only by the much higher side plates 22a, 22b, which define a significantly deeper U-profile than the side plates 12a, 12b of the U-profile 10.
  • these side plates are still provided in the embodiment shown here with protrusions 23 and recessed portion 24, the should also serve to improve the maintenance of the rail 20 in a precast concrete or an end face of the precast concrete part.
  • the side plates 22a, 22b are angled relative to the base plate 21 by an angle different from 90 °, so that the groove formed by this rail 20 in the face of a concrete slab has a slightly trapezoidal cross-section whose width from the bottom to the opening slightly increases.
  • FIG. 5 shows the corresponding rails 10, 20 in the installed state, whereby the purpose of the different depths U-profiles 10 and 20 is clear.
  • FIG. 5 two precast concrete elements in the form of plates 40, 50, which are interconnected along a joint 45. In this longitudinal section it can be seen that they extend far into the concrete slabs 40, 50 and are shed with the end portions of the steel cables 8, which are firmly connected by suitable end sleeves.
  • a dot-dash line indicates the location of a reinforcing bar 46, which extends through the mutually overlapping rope loops 7 therethrough, which in turn are folded out of the U-shaped rails 10 and 20 and, as in the enlarged view above right in FIG. 5 recognizes, cover each other.
  • the two rails 10, 20 each have five cable loops on substantially the same measured in the longitudinal direction of the rails positions.
  • the cable loops 7 are generally folded into the rails and are by the appropriately trained holding elements 15, which is particularly well in terms of this design FIG. 1 detects held in the folded position within the U-profile.
  • these cable loops 7 are folded out of the molded with the concrete walls 40, 50 rails 10 and 20 and then arrive in the FIG. 5 and also in FIG. 6 shown position in which the cable loops 7 of opposite rails 10 and 20 overlap each other.
  • both rails 10 and 20 are aware of different depths formed because the base plate 11 of the rails 10 in the case of some precast concrete parts, especially for columns, a sufficiently large distance from inner reinforcement elements of these finished parts must comply, but on the other hand again relatively close to the Surface of the concrete or the finished part 50 facing end face are arranged so that it is not possible in the case of some precast concrete parts, such as in particular some pillars, the deeper U-profiles 20 use.
  • the rope loops for reasons of practical handling a minimum length of the order of 70 mm, so that they are not in the unfolded state in an opposite groove with shallow depth of z. B. only 20 mm would fit into it, if the remaining gap 45 between the furthest projecting edges of the faces or grooves a certain maximum dimension of z. B. also should not exceed 20 mm.
  • a flat U-profile 10 with a deep U-section 20 then allows on the one hand a sufficient distance to reinforcing elements, for example on the side of a support by attaching a flat rail 10 and attaching a deep rail 20 on the end face of a concrete slab and yet relatively narrow joint 45 and an overall relatively small volume to be filled with the (generally relatively expensive) potting compound for the connection of corresponding precast concrete parts, this volume essentially by the volume the two U-profiles 10, 20 and the remaining due to the distance of the precast concrete parts 40, 50 gap 45 is defined.
  • This volume or the distance of the opposite base plates 11, 21 of the opposite rails 10, 20 at the same time provides enough space for the complete unfolding of cable loops 7 with a length up to the sum of the sum of the depths of the two rails plus the width of the remaining Groove 45 may be.
  • cavities 1 at the bottom of the U-profiles 10 and 20 also have a positive side effect, since they in turn reduce the volume to be filled by potting compound or grout when they protrude into the interior of the rail.
  • the bases of the cavities 1 preferably make up between 10% and 35% of the area of the base plates 11, 21.
  • FIG. 7 shows still some possible cross-sectional shapes of the cavities 1 with partially undercut side walls 3, 5 and 2, 4.
  • the concrete block formed by the cavity 1 widens in cross-section at least in a cross-sectional direction from the concrete slab into the U-profile.
  • FIG. 7 shows at the top the top view of a cavity or a corresponding, forming in such a cavity concrete blocks. Furthermore, two cross-sectional lines A and B are shown.
  • the sub-pictures below show various cross-section combinations "A” and "B", whereby the longitudinal cross-section "A” is shown somewhat shortened for reasons of space.
  • the concrete blocks which result from corresponding cavities, in at least one cross-sectional direction extending from the plate outwardly expanding cross-section, which leads in practice to a larger breakout wedge in the concrete and thus an increased lateral force carrying capacity of indirectly over this Cam secured rails and rope loops effected.
  • an undercut is avoided in all cross-sectional combinations, wherein the rail is always arranged with their cavities so that a respective upper wall of the cavities is always one of the side walls which do not define an undercut.
  • FIG. 8 schematically shows along a front side of a prefabricated building or a prefabricated wall 40, a rail 20 with its two asymmetrical ends, wherein the central portion of the rail and the wall 40 is omitted by an interruption.
  • the peculiarity of the rail after FIG. 8 is that the clear distances x 1 to x n , measured from one end of the Rail 20 to the respective cavities 1, differ from corresponding distances y 1 to y n , which would be measured from the opposite end of the rail, again starting at the closest to this end to the farthest cavity.
  • the rail is asymmetrically formed with respect to the clearances of the cavities 1 from the ends of the rail.
  • FIG. 9 reproduces a connecting region of two adjacent prefabricated components 40, 50, on the end faces of which corresponding rails 10, 20 with cable loops 5 are arranged.
  • the one rail 10 relative to the other rail 20 is rotated about a lying in the paper plane, horizontal axis by 180 °, ie that the lower end of the rail 20 shown on the left end is arranged at the top right rail 10.
  • the concrete blocks of the prefabricated components which form by penetration of the concrete into the cavities 1, are arranged offset on one side of the connecting joint opposite the cam formed on the opposite side, while the exit points of the cable loops still the same height.
  • the side walls of a rail are significantly lower than the side walls of the other rail.
  • the rail 20 shown on the left can have, for example, a side wall height of approximately 70 mm
  • the rail 10 shown on the right has only a height of approximately 20 mm.
  • the asymmetrical arrangement of the cams with respect to the ends of the respective rails is independent of this different height of both rails. Even similar rails 10, 20 would lead with a corresponding rotation about a horizontal axis by 180 ° to the staggered arrangement of the opposing cavities 1 and the concrete cones forming therein.
  • the openings for the cable loops and the corresponding cable loops 5 are arranged approximately symmetrically with respect to the two rail ends, so that the cable loops of opposing prefabricated components are relatively close to each other, as in FIG. 9 is shown. This leads at low loads to a favorable power transmission directly between the cable loops, each forming a close-fitting pair.
  • the length of the cavities 1 and the cams in this example is about 60 to 80 mm, their width is about 30 to 55 mm and their height about 20 mm.
  • the distance between the cable loops is about 250 mm, which also corresponds to the pitch of the cavities 1, which have a different distance only to the ends of the respective rail, wherein the difference of the clearances of the outermost cavities 1 to their nearest ends of the rail 10 or 20 corresponds approximately to half the repeating distance, that is about 125 mm or any other value between z. B. 100 and 150 mm.
  • the above dimensions of the individual elements can be realized independently of each other.

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  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
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  • Laying Of Electric Cables Or Lines Outside (AREA)

Claims (16)

  1. Rail destiné à recevoir des boucles de câble (5) pour l'assemblage de pièces préfabriquées (40, 50), constitué d'un rail (10) présentant un profilé en forme de U, lequel comprend une plaque de base (11) et deux plaques latérales (12a, 12b ; 22a, 22b) coudées, ledit rail comprenant des ouvertures (9) dans la plaque de base (11) du profilé en U pour le passage de boucles de câble (7) et une structure superficielle qui améliore la tenue dans la pièce préfabriquée et qui se présente sous la forme de parties de paroi en saillie et/ou en retrait dans la plaque de base (11) et/ou sur les parois latérales (12a, 12b ; 22a, 22b) du profilé en U, caractérisé en ce que la structure superficielle comprend au moins dans la plaque de base (11) du profilé en U, en plus des ouvertures (9) pour les boucles de câble (5), au moins une cavité (1) dont la surface en section transversale mesurée dans le plan de la plaque de base (11) atteint au moins 4 cm2 et dont la dimension minimale en longueur, en largeur et en profondeur atteint respectivement au moins 1 cm, la ou les cavités (1) étant formées par une ouverture dans la plaque de base et un corps creux qui est ouvert au niveau de sa face inférieure et fermé dans la partie restante, et qui est inséré sans jeu dans l'ouverture ménagée dans la plaque de base.
  2. Rail selon la revendication 1, caractérisé en ce que la cavité (1) comprend des parois latérales (2, 3, 4, 5) s'étendant à partir de son bord dans le plan de la plaque de base à l'intérieur du rail (10), et un fond (6) fermé par rapport au côté intérieur du rail (10).
  3. Rail selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la paroi (2, 4, 5) forme avec la plaque de base (11) du rail un angle compris entre 60° et 120° mesuré dans une direction dans un plan perpendiculaire à la paroi.
  4. Rail selon la revendication 3, caractérisé en ce qu'au moins une partie des parois d'une cavité présente des angles d'inclinaison différents par rapport à la plaque de base (11).
  5. Rail selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la cavité comprend des coins arrondis.
  6. Rail selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la cavité est circulaire ou elliptique en vue en élévation.
  7. Rail selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les parois latérales (12a, 12b ; 22a, 22b) du rail présentent une hauteur mesurée perpendiculairement à la plaque de base (11) comprise entre 20 et 80 mm.
  8. Rail selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la profilé en U est trapézoïdal en section transversale, le côté ouvert du profilé formant le côté plus long du trapèze.
  9. Rail selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le fond (13) des cavités (1) s'étend à une certaine distance de la plaque de base (11) et sensiblement parallèlement à cette dernière.
  10. Rail selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le rail comprend plusieurs cavités (1), qui sont réparties sur toute la longueur du rail, caractérisé en ce que le rail est asymétrique en ce qui concerne l'écart entre les cavités (1) et les deux extrémités du rail.
  11. Rail selon la revendication 10, caractérisé en ce que les écarts intérieurs entre les cavités et l'une des extrémités de rail se distingue des écarts intérieurs correspondants, les plus proches pour ce qui est de l'écart, entre les cavités et l'autre extrémité du rail d'une valeur qui correspond au moins à la longueur des cavités, mesurée dans la direction longitudinale du rail.
  12. Combinaison de deux rails selon l'une quelconque des revendications 10 ou 11 pour l'assemblage de deux pièces préfabriquées voisines, caractérisée en ce que les rails opposés l'un à l'autre de pièces préfabriquées voisines sont agencés de manière à être tournés de 180° les uns par rapport aux autres dans leur orientation longitudinale, de sorte que les cavités (1) des rails opposés sont agencées en étant décalées les unes des autres.
  13. Combinaison de deux rails selon l'une quelconque des revendications 10 à 12, caractérisée en ce que les rails sont sensiblement symétriques en ce qui concerne les écarts entre les points de passage des boucles de câble et les extrémités respectives du rail.
  14. Procédé d'assemblage de deux pièces préfabriquées voisines en béton, lesquelles comprennent des rainures s'étendant le long de leurs surfaces d'assemblage ou frontales, desquelles rainures font saillie des boucles de câble, qui sont amenées en chevauchement par rapprochement des surfaces d'assemblage ou frontales et par orientation des boucles de câble, afin de faire passer une barre d'armature simultanément à travers les boucles de câble des deux pièces préfabriquées à assembler puis de verser une masse de scellement dans les joints adjacents, caractérisé en ce que l'utilisation des rails selon l'une quelconque des revendications 1 à 11 sur le fond des rainures permet de former des cames faites de béton ou d'une masse de scellement, qui s'étendent depuis le fond de la rainure dans l'intérieur de la rainure ou dans le matériau en béton situé sous le fond de la rainure, et qui présentent une profondeur ou une hauteur d'au moins 10 mm et qui présentent dans un plan parallèle au fond de rainure une surface en section transversale d'au moins 4 cm2.
  15. Procédé selon la revendication 14, caractérisé en ce qu'une des rainures présente au moins une profondeur deux fois supérieure à celle de l'autre rainure, des rails selon l'une quelconque des revendications 1 à 11 étant utilisés, les plaques latérales (22a, 22b) de l'un des rails (20) présentant une hauteur mesurée perpendiculairement à la plaque de base (21), qui atteint au moins le double de la hauteur des plaques latérales (12a, 12b) de l'autre rail (10).
  16. Pièce préfabriquée en béton ou construction composée de plusieurs pièces préfabriquées en béton, caractérisée en ce qu'elle présente sur au moins l'une de ses faces frontales, de ses faces latérales ou l'un de ses points d'assemblages un rail ou une combinaison de rails selon l'une quelconque des revendications 1 à 15.
EP08801436.0A 2007-07-26 2008-04-04 Profilé d'ancrage pour boucles de câble Active EP2183446B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007010509U DE202007010509U1 (de) 2007-07-26 2007-07-26 Schiene zur Aufnahme von Seilschlaufen für Fertigbauteile
PCT/EP2008/002703 WO2009012827A1 (fr) 2007-07-26 2008-04-04 Profilé d'ancrage pour boucles de câble

Publications (2)

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EP2183446A1 EP2183446A1 (fr) 2010-05-12
EP2183446B1 true EP2183446B1 (fr) 2016-08-24

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EP08801436.0A Active EP2183446B1 (fr) 2007-07-26 2008-04-04 Profilé d'ancrage pour boucles de câble

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EP (1) EP2183446B1 (fr)
AU (1) AU2008280579B2 (fr)
DE (1) DE202007010509U1 (fr)
DK (1) DK2183446T3 (fr)
ES (1) ES2595060T3 (fr)
LT (1) LT2183446T (fr)
PL (1) PL2183446T3 (fr)
PT (1) PT2183446T (fr)
WO (1) WO2009012827A1 (fr)

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FI8099U1 (fi) * 2008-08-11 2008-11-21 Group Finland Oy R Vaarnalenkki
DE102010003272A1 (de) 2010-03-25 2011-09-29 Georg Weidner Vorrichtung zur Herstellung eines Verbunds zwischen Betonfertigteilen
WO2014104910A1 (fr) * 2012-12-26 2014-07-03 Открытое акционерное общество Нижегородская инжиниринговая компания "Атомэнергопроект" Câble structurel
SG10202107902RA (en) 2016-06-28 2021-09-29 Seng Wong Composite structural wall and method of construction thereof
FI128866B (en) 2018-09-24 2021-02-15 Peikko Group Oy Arrangements comprising a wire link and a base and a method of attaching a wire link to a base
EP3868980A1 (fr) * 2020-02-20 2021-08-25 R-Group Baltic OÜ Boîtier à boucle de fil métallique
US11885143B2 (en) * 2020-07-31 2024-01-30 Harry A. Thompson Oval cover member for pre-cast concrete lift hook
CN111910794A (zh) * 2020-08-21 2020-11-10 中国电建集团贵阳勘测设计研究院有限公司 一种应用软索连接的预制墙体结构
CN113969628B (zh) * 2021-11-29 2023-04-11 中交一公局集团有限公司 竖向支撑组件、装配式建筑及竖向支撑组件制造方法

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DE8228278U1 (de) * 1982-10-08 1984-06-07 Kremer, Manfred, 6238 Hofheim Schalungs- und verwahrungselement fuer bewehrungseisen
FR2560913B1 (fr) * 1984-03-09 1986-10-24 Quille Entreprise Dispositif pour maintenir sur un element de coffrage une fourrure d'engravure et de support eventuel de fers en attente
DE8705002U1 (fr) * 1987-04-03 1987-08-20 Max Frank Gmbh & Co Kg, 8448 Leiblfing, De
DE8810509U1 (fr) * 1988-08-19 1988-09-29 Tiletschke, Lothar, 4904 Enger, De
FR2712619B1 (fr) * 1993-11-17 1995-12-22 Mure Ets Caisson modulaire pour la mise en attente de fers d'armature de béton.
DE29612573U1 (de) * 1996-07-20 1997-11-20 Pfeifer Seil Hebetech Vorrichtung zum Verbund von Betonfertigteilen
DE102004043454A1 (de) * 2003-09-08 2005-03-31 Reuß GmbH & Co.KG Verwahrvorrichtung für Bewehrungsstäbe
DE202005010080U1 (de) 2005-06-27 2006-11-09 Pfeifer Holding Gmbh & Co. Kg Verbindungsvorrichtung

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Also Published As

Publication number Publication date
WO2009012827A1 (fr) 2009-01-29
PL2183446T3 (pl) 2016-12-30
DK2183446T3 (en) 2016-09-26
PT2183446T (pt) 2016-10-07
AU2008280579A1 (en) 2009-01-29
LT2183446T (lt) 2016-11-25
EP2183446A1 (fr) 2010-05-12
AU2008280579B2 (en) 2014-01-09
DE202007010509U1 (de) 2008-12-04
ES2595060T3 (es) 2016-12-27

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