FI117803B - Hakjärnanordning - Google Patents

Description

117803

Haka Iron arrangement

The present invention relates to a fastening iron arrangement for reinforcing a substantially elongated, cast concrete structure 5, which comprises one or more single, and / or at least part of its longitudinal, continuous, substantially transverse gripping bars of a concrete structure.

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In conventional reinforcement concrete products, cross-directional reinforcement is usually carried out in the form of so-called reinforcing bars. ring hooks or threaded hooks. Circular saws are steel wire rings that are so-called. 15 is wrapped in a so-called "reinforced concrete" field. Main bars. Threaded hook, in turn, is a haka-reinforcing spiral that circulates around the end steels. However, neither of these methods of hammering is possible when the structure 20 to be fabricated has a cavity or when other product features or manufacturing techniques, such as sliding casting, require: transport of mechanical mandrel and / or sealing parts.

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··. • during the casting work, through the reinforcing steel of the structure. On the other hand, for example, prestressed steel • · * *. 25 “tensioned braids are the main steels used in the manufacture of tonic structures, so they do not · · · ·”: fastening of the reinforcing bars by mere slotting is not * * * * ... * reliable.

a i. ·, · '30 On the other hand, when making reinforced concrete beams, for example, solid or hollow concrete beams, the manufacturing technique has its own problems. For such beams • *. usually special end pieces are used, whereby · ·. their importance especially in the case of a pile of piles *., * · * 35 used, for example, to reinforce the pile head by strokes ί /. for the purpose of acting as a ground tip, allows the piles to be connected to each other and / or further enables the connection of special tips to the piles. Such endpieces generally include a plate or plate housing at its end and securing steels attached thereto. In turn, the bonded steels include end steels that are positioned at the edges or corners of the beam to be manufactured and the hook reinforcements attached thereto. In addition, for example, pile joints and / or accessories are also connected to the end pieces, if necessary. In conventional fabrication, the actual end steels of such a pile structure and the end steels of the end piece are coupled manually by 10 bonding wires.

In particular, the prestressed sliding beams of the prestressed beams are predominantly prestressed braids. These braids are not interrupted before casting, but run in successive piles from one pile to another over the entire length of the casting platform. In addition, such piles may be fabricated in parallel on the same substrate. The opposite end pieces of successive piles are joined to one another during casting, either by means of the connecting parts 20, by separate fastening parts, or they are made integral so as to leave a gap between the end pieces from which the braids can be severed. In this context, also the possible attachment parts • ·:, 1 ·· must be cut off if necessary. Truncated Braids | The adhesion of the 25 ends to the pile head takes place with the concrete curing: 2 · 1, which is why this type of pile *; 3; is usually reinforced at their ends by • · j. ·. · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

30th . Sliding molding technology is still characterized by the fact that the »1 ·;! / Structure to be fabricated is molded on a long, flat • Φ * ·; 2 'and smooth mold base, whereby the traditional: T: technique still has a problem of 3; 35 · · · · · · · · · · · · · · · · · · · · · · · · · Placing the end pieces of the successive piles for pouring and staying in place as the casting progresses from one pile to another.

• ♦ «2 • · · 3 • · 117803 '3

Further, there is currently a problem, particularly in the manufacture of hollow-core slabs, that traditional manufacturing technology is not capable of producing sufficiently good hollow-core slabs of mechanical strength, in particular sliding casting technology, since at present only longitudinal and masses more - 10 without.

DE 102 09 046 discloses a non-conventional two-piece iron reinforcement in which the yarns are arranged so as to provide opening points therein. The opening points of such an reinforcement are intended to be connected to the end blades of the reinforcement. the solution cannot be applied to casting without end steels or as sliding casting as such.

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DE 2 330 079, in turn, discloses a reinforcement which is stiffened by a support wire passing through three longitudinal end steels which are welded • · *, 1 ··, alternately to each end steel, thereby forming a so-called. circular support reinforcement. Because that.

• the support wire is welded to the end steels, * consists of a reinforcement thus formed completely for casting: a closed circumferential structure which cannot be utilized

Mt «„ ···, without end steels, and not as sliding cast.

30th On the other hand, particularly with regard to hollow steel beams, it is known to apply tension to the reinforcements between them, ··· • mi i, when used in connection therewith, e.g., as described in GB 741 953, what happens ··· by attaching the pile ends to the prestressing braids • · ·. parts. Ko. however, the solution utilizes • »» 1 completely separate locking members, the large number of which and the disproportionately large manual locking work resulting therefrom make them unsuitable for very large-scale production or sliding casting, where the prestressing braids can pass uniformly through up to tens of piles.

Further, from US 2003/0038398 it is previously known to control prestressing braids by means of end plates in end ends 10 of concrete structures made of concrete. In this solution, the positions of the prestressing braids are guided by the end-plate of each end piece, but the purpose is not to place them at the correct position in the casting.

Thus, the current manufacturing technology, in particular for slip casting, per se, both hollow and hollow reinforced concrete structures, is still at a very underdeveloped level, which in practice currently requires the use of outdated, inefficient manufacturing technology. On the other hand, the current manufacturing technology requires an unnecessary amount of manual labor, as the inherent equipment cannot be utilized sufficiently mechanically at all stages.

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• · · ··· *

In accordance with the present invention, the iron iron systems · · •; *; the purpose is to achieve a decisive improvement in M * *. ***. knowledge of the foregoing problems and thus raises • · · 30 substantially the state of the art. In order to accomplish this purpose, the hooks according to the invention are characterized by the fact that they have, at least during casting, a substantially open upper part of the hinged reinforcement, in particular due to hook reinforcement, torsional stiffener ···. reinforced concrete slab, hollow core slab, • · ·. 117803 by imaging technology for open / open top of hook reinforcement, allowing passage of over supported sliding members, such as hollow mandrel, sealing member, and / or similar, in the case of die opening.

The main advantages of the inventive pig iron arrangement are the simplicity and efficiency of its construction and use, whereby it is possible to use sliding casting technology in the manufacture of a wide variety of reinforced concrete structures. First of all, the invention makes it possible to provide a simple, machine-made / installable transverse reinforcement for slip casting products, which makes it possible to significantly increase the torsional strength of e.g. On the other hand, the hinged iron arrangement according to the invention also provides a technically very advantageous connection between the ends of reinforced concrete piles and the hinged reinforcement. Thanks to the invention, it is still possible to increase the use of slip casts, either hollow or solid piles, while significantly increasing their bending strength and resistance to impact, as well as providing, for example, rockheads with the necessary cavities or: * j * i holes already in their casting during punching · ***. for review.

• · · * · ♦ · • * * «· · • Φ · *. * · *. Thus, with the inventive hook iron arrangement, · · 30 it is possible to extend the utilization of the sliding casting technique. . ♦ · · * ”, * has significantly better cheeses ♦ · · *”, * which have significantly better cheeses • · * · "* concrete structures such as torsional stiffness / size / mass optimum cavities: ** *: 35 slabs using, despite the sliding casting technology utilized in their manufacture, the reinforcements in them • * · I.

• «« # · «• · 117803.

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Advantageous embodiments thereof are disclosed in the dependent claims directed to the hook iron arrangement of the invention.

In the following description, the invention will be illustrated in detail with reference to the accompanying drawings, in which Figures 1-310 show some preferred alternative, longitudinally continuous, continuous wireframe hooks in side elevations (a), bars (15), above. Figures (c) and (d) are perspective views, Fig. 4 is a view showing a hook-iron arrangement according to the invention, particularly in connection with a sliding cast end of a hollow steel reinforced concrete beam. . pen, • · · * · «• ·

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t 1 * 25 in Fig. 5 * ·· · · · · · · · · · · · · · · · · · · · · 1 1 shows an enlarged enlarged M · · ... · at the end pieces of Fig. 4 • · ·, ·; at the butt joint, Figure 6 j shows a preferred lane iron arrangement used in conjunction with the cavity beam in accordance with the invention, and • 1 · 1 · · · Figure 7 further illustrates a preferred hook-and-roll arrangement according to the invention when used in connection with a hollow beam structure.

The present invention relates to a fastening iron arrangement for reinforcing a substantially elongated, pourable concrete structure, comprising one or more single, and / or at least part of its longitudinal s, single continuous, substantially transverse gripping structures TR. The hinged iron arrangement comprises, at least during casting, a substantially reinforced concrete slab, a hollow slab, a reinforced concrete slab, a hollow slab, a reinforced concrete bar having a higher torsional rigidity, a hollow slab, a reinforced concrete beam wherever possible: top of the slider tse supported institutions, * *! ; ·, Such as a cavity mandrel, sealing member and / or the like, * · *, ·; .ku in longitudinal direction in the casting passage through the transverse gripping structures TR * * * 25.

• ♦ • · • · * «t. The hinged iron 1, which is continuous in longitudinal direction s 30 and fed in casting around one or more cavities of a concrete structure of sliding casting technology, comprises in particular ί, ^ ϊ in Figures 1-3. with reference to the alternative examples shown, ... ·, when viewed in cross-section along a longitudinal * · directional axis s' reciprocating ♦ ·. a circumferential wire structure whose rotational direction changes at the opening position 35 of the resulting reinforcing bar.

* · ·, * ·· In this context, it is also possible to utilize structures that remain partially nested or ready to open in their opening position a.

8 117803

A further preferred embodiment, however, not shown in the drawings, is that the mutual distance e 5 of the transverse gripping structures TR of the hooks reinforced with a single hook iron 1 can be arranged to be variable longitudinally to enable local strength properties of the concrete structure to be manufactured.

The hook reinforcement as shown in Figures 1-3 may thus be open or closed in its resting state, thus opening during the casting, e.g., excited by a mechanical member in the casting machine. Hook reinforcement of the type described above can be pre-fabricated, molded with a separate auxiliary device, or then machined in the casting machine itself. As described above, it is possible to adjust the frequency of the hook reinforcement, i.e. the mutual distance of the transverse gripping loops therein in the longitudinal direction of the concrete structure to be manufactured.

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The hook iron arrangement of the invention is, in a preferred embodiment, particularly intended for use with head, tongue, and tension-engaging bonding structures, * such as binding edges, braids or the like, for the production of reinforced concrete beams for concrete casting, · · ·:; includes at least end portion A and end steels B, wherein the wrought iron arrangement is arranged at least in a portion of the pi-30 bias s around the end steels B. Referring to Figures 4 and 5 of an embodiment of such an embodiment, the transverse direction of the upper section is welded to one or more end blades of such an end piece. ··· 35 B. In addition, a through point E is provided at the end portion A of the endpiece, of course, for supporting the sliding machine actuators, such as cavity mandrels, sealing members, and / or the like. In the embodiment of Figures 4 and 5 9 117803, hook reinforcing is accomplished by a plurality of single, longitudinally s successively spaced, end-welded wire bars C to one or more end steels B. In this context, it is generally recognized that pile end products are particularly suitable for The use of the opening hinged iron is also suitable for casting with an extruder.

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The solution according to Figures 4 and 5 has a hook reinforcement of the end pieces in an open pattern such that the first end of a single hook wire is located in the opening zone a, whereby the hook wire rotates from outside the end steels B around the end of the wire. The start and end ends of the hook yarn thus form flexible projections which bend, for example, as the support member of the cavity mandrel or sealing member passes through the reinforcement. The claw reinforcement of the type described above may also be implemented, for example, such that one of the projections is short enough that it does not need to be flexible during the casting operation. Then a short head. . welded to the corresponding side of the upper päätyteräk- • ··. * * the lower part, and the lower päätyteräksiin. The second end of the f 25 in such an application, respectively, is • i · * · * 'long enough to extend, e.g., obliquely · * · to the opening. By not welding this end • * ·. · · To the upper end blade, its flexibility is increased • · «ϊ.,. Thus, this type of hook reinforcement is asymmetric with respect to that shown in Figures 4 and 5, • j ': where the shorter projection end is inelastic, being · «· ·. ** ·. welded to the upper end of the steel, and accordingly, «·· of the above-described manner, eg. directed obliquely • i« * * * · joustavarakenteinen the other end, while from the receiving • · * ··· * 35 corresponding side end of the steel. It is advantageous to further implement this type of hook-and-loop so that the; * ·, · reinforcement has, at each opening position, a short end and a longer end of each successive hook-iron.

In particular, in the situation illustrated in Figs. In the embodiment shown, the direction change arrangement includes an angle change guide k, such as hooks k1, k2, k3, k4 or the like, located at opposite ends of the end portions A of the end pieces, such as prestressing braids or the like. In a further preferred embodiment, a continuous insert D is attached to the opposite ends of the end portion A with the end steels B, at whose upper and lower edges the angle change guides k are arranged. The change of direction-20 in the arrangement still includes at each end portion A of bonding structures such as prestressing braids or the like. i * for angular displacement / penetration * *, * control / penetration arrangements L; LI, L2, L3.

In this context, the end pieces are held in place by being locked in the prestressing braids so that they do not move in the first place. longitudinally and on the other hand so that they remain transverse * 30. In this context, the passage of the individual prestressing braids • · · ϊ: can be accomplished through the pair of end pieces according to Figures 4 and 5, e.g. to the lower guide hook kl of its end piece, after which it passes into the notch L1 of the end members of the plate-shaped ends of the end pieces, and further to the guide hook k3 of the other end piece. From there, the preload braid continues in the same direction as it came to the first: 117803 ϋ end piece. Correspondingly, the course of the upper left pretensioner braid is as follows: k2 to L2 -4. An alternative embodiment in this connection is that the lower prestressing braid approaches the lower guide hook k1 of the first main body 5, from where it then proceeds directly to the upper guide hook k4 of the second pile end, and then proceeds thereafter as the upper pile pretensioning braid. Correspondingly, the course of the upper braid is as follows: k2 - k3. Thus, the braid encountered in the upper pre-10 tension braid then continues in the lower braid. In the latter case, the braids thus cross through the guide slots L3 in the end-plates of the end-pieces.

As described above and shown in Figures 4 and 5, the braids are threaded into hooks, after which they are simultaneously biased. As each braid forms a bend as it passes through the end pieces, transverse forces are exerted on the support points k, L 20, which together with the friction hold the end pieces in place.

Fig. 6 and Fig. 7 show the hook type reinforcements of the type shown in Figs. 1-3 for use with a 5-hole hollow core slab and • · 25 hollow-core reinforced concrete beams. As shown in Fig. 6, the · * · · ... * locking iron arrangement according to the invention makes it possible to support, for example, the wall between each cavity by reinforcements passing in that height.

··· 30 • · * · Obviously, the invention is not limited to the above.

. ** ·. or to the described applications, but may be modified within the scope of the invention according to the particular applications and applications.

Thus, first of all, it is clear that the longitudinally continuous type of Figures 1-3 can be utilized in the end pieces of Figures 4 and 5. On the other hand, in certain types of solutions, it may also be possible to realize the end pieces without any actual end steels, but the open / unlock hooks according to the invention are directly connected to the 5 end plates. In addition, it is possible, for example, to disconnect end-plates of end-pieces as shown in Figs. 4 and 5 either with separate connecting members or welded steel sockets which are cut from the gap between the end-plates or the 10-sockets.

• 1 · • · · 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 • · • · 1 1 1 1 1 «· ♦ ♦ a a a a a« a «a« «« a a a '· • · · • f • ·

Claims (10)

A chuck iron device, which is intended as a reinforcement of a substantially elongated, castable concrete structure and the like, which belongs to one or more longitudinal (s) of the concrete structure one after the other and / or at least partially in its longitudinal direction (s) uniformly still , comprising a substantially transverse gripping structure (TR), characterized in that the chuck iron device comprises a tree-structured hook reinforcement (1, C) which is open / obvious at least during its casting, substantially of its upper part, in particular to allow for the manufacture of a reinforced concrete slab, heel plate, with end pieces equipped with reinforced concrete beams and / or the like, which have better torsional stiffness thanks to the hook reinforcement, by sliding casting, when the open / obvious upper part of the slab assembly enables the sliding casting machine from the above-supported member or sealing member, , thread during a casting situation n in the longitudinal direction (s) through the transverse direction of the hook. : grip structures (TR). * «T * f • · • * 2. A chuck device according to claim 1, characterized in that a chuck (1) which is to be fed during casting around one or more heels of a * *: a specially manufactured by sliding casting technique and · Heel-structured concrete structure, which continues uniformly in the longitudinal direction (s), comprises, when ϊ. · / 30 is viewed in a cross-section, about a longitudinal axis (x ') back and forth * »· t ···, yawing annular tree structure, whose direction of rotation * · changes into an opening point (a) formed by • *. tree structure. \: 7 35 Hinged device according to claim 1 or 2, characterized in that the mutual spacing (e) of the transverse gripping structures (TR) of a hook reinforcement, formed by a uniform hook (1), is arranged to change in the longitudinal direction. (s) in particular to enable adjustment of local concrete strength properties of the concrete structure to be manufactured. A hook-iron device according to any of the above claims 1-3, which is intended for the manufacture of reinforced concrete beams made of concrete casting, which are specially equipped with end pieces and drawing intermediary bonding structures, such as at joints or corners, connecting joints, prestressing joints and / or wherein each of the end pieces at least includes a end portion (A) and end plate (B), wherein the chuck core device is arranged at least in part of its longitudinal direction (s) to surround the end points (B), characterized in that when viewed in the transverse direction, of its Upper 20 open / open (a) hook reinforcement (1, C) has been welded to one or more end points (B). • · • · · t 5. A chuck iron device according to claim 4, characterized in that a gating point (E) is provided in the end piece (A) of the end piece (E) for the sliding molding machine from the above supported members, such as • «· Hi In the sacred mandrel, sealing means and / or • * * · ... * correspondingly. * Σ. ·, Ί 30 6. A hook device according to claim 4 or 5, characterized in that the hook reinforcement has been realized by several single, longitudinal points in one or more successive points. endplate (B) welded hook iron (C). 35 · · · A chuck iron device according to any one of the preceding claims 4-6, characterized in that in the case of a simultaneous sliding of two or more longitudinal concrete (s) on consecutive reinforced concrete beams or correspondingly, their opposite end pieces are arranged to be supported on one another. locations by utilizing the biasing force of the bonding structures by changing their direction with a direction change device arranged in the end pieces. 8. A chuck iron device according to claim 7, 10, characterized in that the direction change device belongs to the opposite end of the end pieces in relation to the gable part (A) existing angular change control devices (k) for the bonding structures, such as bias nodes 15 or similar, such as k , k4) or equivalent. A chuckle device as claimed in claim 8, characterized in, one at the opposite end of the headboard (B). 20 ends in relation to the end portion (A) are joined together a uniform extension part (D), at the upper and lower edges: of which are the angular change control means (K) arranged. • «« * · · • 10. A chuckle assembly as claimed in any of the above claims 7-9, characterized in that * · · to the directional change device includes a control / * · *·· 1 guiding device (L; LI, L2, L3) in each end portion (A), which is intended for the angular change / penetration of the * · · bonding structures, such as the biasing nodes. or equivalent. * · • · · · · · · · · · · · · · · · · 2