Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21F—WORKING OR PROCESSING OF METAL WIRE
  • B21F29/00—Making fencing or like material made partly of wire
  • B21F29/02—Making fencing or like material made partly of wire comprising bars or the like connected by wires
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
  • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
  • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
  • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/12—All metal or with adjacent metals
  • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]

Definitions

• the invention relates to a grid construction, in particular a reinforcing grid or floor mounting grid, with a plurality of wire formed from zigzag curved wires, juxtaposed wire webs and a plurality of, in particular parallel to each other, rods, wherein the wires of the wire webs, the rods in the form of substantially closed Loop around loops.
• a generic grid construction is e.g. known from GB 191501422.
• the rods guided through the loops of the wire webs are in the
• Grid structure expand relatively quickly, so that the rods are no longer held sufficiently tight in the loops of the zigzag wire paths.
• Heating during welding can be weakened.
• additional attachment measures usually applied before the production of the grid on the wires and rods corrosion protection adversely affected or destroyed again.
• the object of the invention is therefore to improve generic lattice structures to the effect that a stable grid structure is created without additional connection measures.
• the substantially closed design of the loops can be achieved by various measures. For example, it may be provided that in each case two legs of the wires to form one, preferably all, intersect crosses in an intersection region, wherein the smallest distance of the legs of the wires to each other in the intersection region is less than three times the wire thickness, in particular smaller than that Wire thickness, is. In addition or instead, however, it is also possible to produce a substantially closed loop by the wire of the wire paths is spirally turned several times around a center of the loop thought. This is achieved when the wire of the wire web is wound more than 360 ° around this center to form the substantially closed loop. In this variant as well, the individual turns of the spiral formed by the wire are advantageously as close as possible to one another.
• the attachment of the rods in the loops of the wire webs based on additional concerns of two adjacent loops together. It is not significant whether for other reasons in addition connecting brackets od. The like. Are attached to the joints between wires and rods, as long as the construction remains stable by the clamping effect after removal of these additional fasteners in itself.
• the Verklemm bin may optionally also the mutual concern and thus supporting each other of two adjacent loops are used to further increase the stability of the construction. While jamming of the rods in the loops of the wire webs is already possible by twisting or tilting in one direction, preferred embodiments provide that the rods for clamping in the loops of the wire webs are twisted or tilted at least in two directions against the loops.
• Such grid structures can be made particularly simple if the surface of an inner opening of a loop is so large that the rod is substantially freely movable in its arrangement substantially perpendicular to an opening plane of the loop in the direction of the longitudinal extension of the rod.
• the grid construction can be used both for concrete reinforcement and as a floor fastening grid.
• FIGS. 1 to 9c show various illustrations of an embodiment of a grid construction according to the invention.
• FIGS. 10 and 11 show an alternative according to the invention. Showing:
• Fig. 3 is a sectional view taken along a wire of this embodiment
• Fig. 10 is a side view of a second embodiment
• FIG. 12a, b detailed views of a fourth embodiment.
• the lower bars 2 are arranged in a lower level 4.
• the two legs 6 and 6' abut each other or are only very slightly spaced from each other.
• the smallest distance in the crossing region 5 is less than three times the thickness of the wire, preferably smaller than the thickness of the wire.
• a substantially closed loop 3 is formed.
• the rods 2, 2 ' by clamping in two different directions, as explained below with reference to FIGS. 5a-7c in detail attached.
• the wire webs 1, 1 ' are essentially planar in the sense that the height of the wire webs perpendicular to their longitudinal extent 9 and perpendicular to their transverse extent 10 is less than five times, preferably less than three times, the wire thickness of the wire web 1, 1 'is.
• the layers of the planes formed by them are shown in the side view of FIG. 2 on the grid construction.
• the levels of the wire paths result in mathematically exact sense by imaginary approximation of the wire thickness to zero.
• Fig. 2 also good to see that the loops of two on the bars 2, 2 'adjacent arranged wire webs 1, 1' do not interlock. This is particularly favorable in terms of ease of manufacture of the grid construction.
• the wire webs 1, 1 ' are arranged exclusively in the direction in which their longitudinal extension 9 runs perpendicular to the longitudinal extension 11 of the rods 2, 2'. It is therefore not necessary to provide additional wire webs 1, 1 'in the direction of the longitudinal extent 11 of the bars 2, 2' or diagonally thereto or in other directions. The same applies to the bars 2, 2 '. These too are arranged exclusively parallel to each other in the embodiments shown. Thus, there are preferably no transversely to the direction 11 extending rods 2, 2 '.
• the grid construction achieves the necessary strength even in the orientation shown between wire webs 1, 1 'and bars 2, 2'. Also this circumstance simplifies the manufacturability and stackability of the overall construction. Due to the good stackability of superimposed grid panels according to the invention, both the storage or transport volume is reduced, as well as the storage and transport stability of the grid construction increased, which brings both a cost and quality advantage.
• the rods 2, 2 ' are straight in the embodiment shown and have a circular cross-section. This is preferably provided, since no special shaping of the bars 2, 2 'is necessary, which in turn simplifies the manufacturability of the grid. However, it is also possible in other embodiments, the bars 2, 2 'following the requirements of the overall construction to perform bent or shape their cross section deviating from the circular shape. Depending on the requirements and intended use, rods 2, 2 'having the same shape and equal tensile strengths can be used in the various planes 4, 4'. However, it is also possible to use different rods 2, 2 'made of different materials and / or with different tensile strengths and / or with different diameters in the different planes 4, 4'.
• the freely accessible intermediate spaces 13 can be used to Piping, empty piping or bodies with lower density to bring.
• the body with lower density can be saved in the central part of the overall construction then weight, since no concrete is needed here. Be introduced into the free spaces 13 piping or empty piping, so this is a simple and elegant way to move water or electricity or other supply lines in the concrete body.
• FIGS. 5a-5c serve to explain the jamming by twisting the wire webs 1, 1 'relative to the rods 2, 2' in a first direction.
• the additional tilting of the wire webs 1, 1 'against the rods 2, 2' in a second direction is shown with reference to FIGS. 6a-6c.
• Figs. 7a-7c show the final result.
• Fig. 5b shows in a plan view of the grid construction, first the position in which the bars 2 'in the loops 3 are substantially freely inserted.
• the area of the inner opening of the loop 3 is chosen so large that the rod 2, 2 'in its arrangement substantially perpendicular to the opening plane 14 of the loop 3 in the direction of its longitudinal extent 11 is substantially freely movable in the loop.
• the rod 2 ' can be inserted into the loop 3.
• the wire web represented by the legs 6, 6 ', is then rotated in the direction of the arrows shown in FIG. 5b until, in the plan view shown in FIG. 5c, they are substantially perpendicular to the longitudinal extent 11 of the bars 2, 2 'is arranged twisted.
• the opening plane 14 is arranged at an angle deviating from 0 ° relative to the longitudinal extension 9 of the wire web or against the plane 12 of the wire web 1, 1 '.
• the angle between the opening plane 14 and the plane 12 of the wire web is specified in the embodiment shown by the size of the surface of the inner opening of the loop 3, the wire thickness and the distance between the legs 6, 6 'in the intersection region 5.
• a rotation angle ⁇ between 20 to 30 ° is low. In the illustrated embodiment, ⁇ is about 25 °.
• Fig. 5a shows in a side view of FIG. 3, the position between the rod 2 'and the wire web 1 before the beginning of twisting, ie in the position shown in a plan view in Fig. 5b.
• the wire webs 1, 1 'in the exemplary embodiment shown are also tilted in a side view onto the lattice construction against a longitudinal extension 11 of the wire webs 1, 1' at an angle ⁇ deviating from the vertical 8 , Fig. 6b shows a side view of the
• Fig. 6c shows the state after tilting.
• the tilt angle ß is favorably between 20 and 40 °, in the illustrated embodiment about 30 °.
• the side view according to Fig. 6c is a detailed view of Fig. 2, in which the tilt angle ß is also drawn.
• the bars 2, 2 ' are first inserted into the loops 3 in the position shown in FIG. 5b. Subsequently, the rotation takes place in the position shown in FIG. 5c, that is, the rotation in a first direction. In a further step, the tilting then takes place by the angle ⁇ in a second direction, which results in the position shown in FIG. 6c.
• Figures 7a, 7b and 7c show details of the final result of this twisting and tilting.
• the jamming of the rods 2, 2 'in the loops 3 of the wire web 1, 1' is favorably brought about by both turning and tilting operations, it is still possible to bring about the attachment only by twisting or only by tilting.
• the wire thicknesses are generally smaller than the smallest diameter of the rods 2, 2 '. In terms of the most rigid possible jamming, it is favorable if the wire thickness is at most half the smallest diameter of the rods 2, 2 '.
• tensile strengths of the material used between 400 and 600 N / mm 2 are usually to be selected.
• the bars 2, 2 ' generally have higher tensile strengths than the wires - usually in the range between 400 and 2500 N / mm 2 - on.
• the rods 2, 2 'can consist not only of corresponding steels but also of, for example, preferably high-tensile and / or fiber-reinforced plastics or have these. Again, pay attention to appropriate tensile strength values.
• a coating preferably of one or more zinc or zinc alloy layers, may be provided for corrosion protection. It is favorable in a grid construction according to the invention, that the coating initially applied to the bars 2, 2 'and the wires of the wire web 1, V is not destroyed or impaired by the manufacture of the construction. Instead of a coating, of course, a suitably trained, stainless steel can be selected for corrosion protection. In selecting the material and the coating, the skilled person can rely on existing standards To fall back on. These would be for reinforcement of concrete the EN 10080. It can also on
• EN 10223 Materials which are known in accordance with EN 10223 for the manufacture of fences, avoided. Also in EN 10264, which deals mainly with the production of ropes, the skilled artisan corresponding material. Also EN 10337 for prestressing steel wires and EN 15630-1 for reinforcement and prestressing of concrete can be used. With regard to coatings for corrosion protection, EN 10244 should be used if necessary. Corresponding stainless steels are in the
• FIGS. 8a to 8d show various possibilities of how the ends of the wire webs 2, 2 'can be bent. However, bending the ends is not absolutely necessary.
• a hook-shaped configuration of the ends of the bars 2, 2 'according to FIGS. 8a and 8b may be provided to hook such a hook into adjacent panels of the construction or the like.
• the provision of ring-like terminations according to FIGS. 8c and 8d can be provided, if an overlapping of two adjacent lattice constructions is to be dispensed with in order to save material. Through the rings, it is possible to connect two panels or grid structures with an inserted into the rings connecting rod.
• connection between two panels or grid structures can also be achieved simply by placing two adjacent panels into each other.
• the grid construction ends on one side of the longitudinal extent 9 of the wire webs 1 with a lower bar 2a and on the other side with an upper bar 2b '. In this construction, it is sufficient to connect the individual panels, these simply put together.
• FIGS. 9a to 9c show different variants of how the end of the wires of the wire webs 1, 1 'can be formed.
• the length of the grid construction or panels ie their extension in the direction of 11, is basically to adapt to the needs and transport options. In earthworks, in which the grid construction is used as a floor mounting grid, panel lengths of about 3 m are often preferred. When used as concrete reinforcement, the grid lengths can be based on today's standard lengths. These are eg 3, 4, 5, 6, 8 and 12.50 m. Nevertheless, the construction according to the invention can be made in any length and size. Even a cut on site at the construction site to the appropriate lengths and widths is possible at any time.
• FIG. 10 shows, in a side view analogous to FIG. 2, that the loops 3 do not have to be arranged directly adjoining each other on the bars 2, 2 '. 10, a greater distance between in each case two adjacent wire webs 1, 1 'along the longitudinal extent 11 of the rods 2, 2' can be selected, which leads to a saving of material and weight.
• the first embodiment according to FIGS. 1 to 4 has the advantage that the loops 3 of adjacent wire webs 1 and 1 'at high load in addition to jamming can also be supported against each other.
• the loops 3 are formed substantially closed by two legs 6, 6 'of the wires intersect to form one of the loops in an intersection region 5, wherein the smallest distance of the legs 6, 6 'of the wires to each other in the crossing region 5 is less than three times the wire thickness, in particular smaller than the wire thickness.
• this is not the only way to create essentially closed loops.
• FIGS. 11a and 11b show, in detailed views analogous to FIGS. 7b and 7c, a variant in which the wire for forming the loop 3 is wound more than 360 ° about the imaginary center of the loop 3. This results in a helical arrangement of the wire in the region of the loop 3.
• the criterion is satisfied that the legs 6 and 6 'not more than three times the wire thickness of each other in the crossing region 5 are removed.
• this need not necessarily be provided, since the loop 3 is already substantially closed by the helical arrangement of the wire.
• the wires are in the region of the loop 3 conveniently again together.
• the rod 2 or 2 ' can be twisted and tilted in two directions for clamping in the loop. Analogously, as shown in FIGS. 5a to 6c for the first embodiment. However, in particular in the helical formation of the loop, it is often sufficient to tilt the rods 2, 2 'either only in the loops 3 or only to turn them.
• the fourth embodiment shown in FIGS. 12a and 12b differs in that the legs 6 and 6 'do not intersect. They are wound in the direction of travel by more than 360 °. This improves the stackability.
• the third and fourth embodiments can be carried out analogously to the two embodiments previously shown, so that accounts for the entire grid construction and explanations to further details omitted with reference to the other embodiments omitted can.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Mechanical Engineering (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Reinforcement Elements For Buildings (AREA)
• Wire Processing (AREA)
• Road Paving Structures (AREA)
• Apparatus For Radiation Diagnosis (AREA)
• Thermotherapy And Cooling Therapy Devices (AREA)
• Golf Clubs (AREA)
• Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

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Applications Claiming Priority (3)

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• 2006
  • 2006-10-24 AT AT0179106A patent/AT503657B1/de active
• 2007
  • 2007-05-11 ES ES07718441T patent/ES2344481T3/es active Active
  • 2007-05-11 PL PL07718441T patent/PL2097191T3/pl unknown
  • 2007-05-11 JP JP2009532641A patent/JP2010507030A/ja active Pending
  • 2007-05-11 AT AT07718441T patent/ATE465831T1/de active
  • 2007-05-11 WO PCT/AT2007/000229 patent/WO2008046117A1/fr active Application Filing
  • 2007-05-11 DE DE502007003633T patent/DE502007003633D1/de active Active
  • 2007-05-11 EP EP07718441A patent/EP2097191B1/fr active Active
• 2009
  • 2009-04-09 US US12/385,499 patent/US20090235610A1/en not_active Abandoned

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