EP3114288A1 - Bewehrungsgitter für den betonbau und hochleistungsfilamentgarn für den betonbau - Google Patents
Bewehrungsgitter für den betonbau und hochleistungsfilamentgarn für den betonbauInfo
- Publication number
- EP3114288A1 EP3114288A1 EP15706831.3A EP15706831A EP3114288A1 EP 3114288 A1 EP3114288 A1 EP 3114288A1 EP 15706831 A EP15706831 A EP 15706831A EP 3114288 A1 EP3114288 A1 EP 3114288A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cross
- grid
- yarn
- deformation
- performance filament
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
Definitions
- the invention relates to a reinforcing mesh for the concrete according to the preamble of claim 1 and a high performance filament yarn for concrete construction according to the preamble of the patent applica ⁇ entitlement 15th
- Reinforcing mesh made from high-performance textile filament yarns such as glass rovings and carbon fiber yarns, has been used in the construction industry for many years.
- Such reinforcing grids are composed of filament yarns made of high performance, which are attached ⁇ arranged in at least a first direction, a so-called principal loading direction to a first thread layer, and threads which differ in at least one of the we ⁇ tendonss first second direction to ei ⁇ ner second thread layer are arranged.
- the two layers of thread were connected by crossing points to form a textile fabric.
- Hoch infilamentgarne the purposes of the present invention consist of many thousands of individual filaments, which are connected by the ⁇ yoggnieren completely adhesively together to to ensure a high utilization of the mechanical properties of a ⁇ individual filaments in the yarn frictionally umd thus in a textile concrete.
- the Hoch orientalsfilamentgarne in Sin ⁇ ne of the invention have resulted in the impregnation rofilm on to an outer surface of a micro-.
- a microfilm is there ⁇ a thin continuous layer with a thickness in the micrometer range.
- the threads can, in principle, consist of any textile fibrous material which, in combination with concrete, is chemically harmless.
- this may advantageously inexpensive synthetic polymer fibers organic Ur ⁇ jump, for example, polypropylene and / or polyester, used ⁇ to.
- the threads can be impregnated.
- the threads have entwe ⁇ which no reinforcing function and are irrelevant for the design of the building structure, or consist of a Maulast- direction also Hoch antiquesfilamentgarnen.
- yarns made of high ⁇ issesfilamentgarnen have a significantly smaller cross-section than the main load Hoch orientalsfilamentgarne ⁇ direction.
- that the reinforcing grid is rollable in the direction of the second thread layer.
- the bond between the concrete and these reinforcing bars is essentially determined by frictional engagement.
- the interface between the concrete matrix and the high-performance filament yarns is of crucial importance. This in turn depends on the matrix material for yarn impregnation. In addition to the covering of the inner filaments of the yarn, it also leads to the formation of an outer, very thin layer. Frequently ⁇ the aqueous polymer dispersions, but also used Epoxidharzdisper ⁇ sions or pure thermoset matrix materials.
- a disadvantage compared with the positive connection resulting from the profiling of the surface of steel bars and steel wires in constructive concrete construction is that the composite lengths and end anchorage lengths are sometimes very large due to the frictional connection force transmission in comparison to short composite lengths between concrete and steel reinforcement, and moreover due to media influences (Temperature change, water, etc.) are negatively influenced.
- Reinforcement gratings made of high-performance filament yarns have considerable advantages over the steel reinforcements characterized.
- the freedom from corrosion allows very low concrete coverages, so that slimmer components and only a few millimeters to centimeter thick reinforcing layers in egg ⁇ ner building reinforcement, z. B. to increase the load capacity required.
- the transferable tensile forces per mm 2 of a reinforcement cross-section amount up to 6 times compared to the Stahlbeweh ⁇ tion.
- the Hoch infilamentgarne are in their linear alignment ⁇ tion and due to the constant diameter of the many thousand individual filaments, z.
- ⁇ can be either circular, elliptical-like to be trained bänd- chenförmig.
- the cross-sectional area ranges from less than one mm 2 to several mm 2 (eg, about 1.9 mm 2 in a 50K carbon roving).
- the grid spacing ie the distance between two threads or two Hoch elaboratesfilament ⁇ yarn in the 0 ° direction or 90 in direction 0, lie in the Re ⁇ gel between 8 mm and 20 mm.
- the object of the invention is to provide a reinforcement ⁇ grid from Hoch orientalsfilamentgarnen as well as a process for its production, which short embedment lengths utilizing cross-section related composite forces min ⁇ least 1,700 N / mm 2 while allowing a substantial cost advantage over the previously introduced ⁇ set, comparable to the material and grid structure Beweh ⁇ ing grids.
- the object of the invention is achieved by a Bewehrungsgit- ter having the features of claim 1 and a high-Leis ⁇ tungsfilamentgarn with the features of patent claim 15.
- the reinforcing grid is formed for concrete construction filament yarns of high performance, which are arranged in at least a first Rich ⁇ tung to a first thread layer, and made of threads, which are arranged in at least one deviating from the first direction of the second direction to a second thread layer, wherein the two layers of thread are connected via crossing points to a textile tilde fabric.
- the deformation portions on Hoch orientalsfilamentgarne, de ⁇ ren cross-section having a varying in the axial direction Quersch ⁇ nittsform and / or varying cross-sectional area.
- deformation means a change in the shape of a yarn due to effects on the yarn itself as well as a change in the shape of a yarn without any effect on the yarn itself, for example by thickening with materials.
- the invention is thus based on the basic idea of changing the spaced reinforcing grid in the main load direction of the high ⁇ assisfilamentgarne such that they have a varied cross-sectional shape and / or a varied cross-sectional area in the axial direction ⁇ .
- the surface of the yarn is thus no more than uniform lateral surface, z. B. as a cylinder jacket surface, but has before ⁇ jumping and receding, usually steadily Anschwel ⁇ lumbar and decongestant, sections that act as anchoring ⁇ sections and allow a significantly improved fit with the concrete.
- the deformation portions have a continuous ⁇ n ⁇ alteration from a first cross-sectional shape of a second cross-sectional shape in the first cross-sectional shape, and / or a constant amount-change of a first cross-sectional area of a second cross-sectional area to the first cross-section ⁇ surface.
- Such a continuous change is characterized by a crack-free transition to the new cross-sectional shape and / or cross-section ⁇ surface, wherein a cycle of a transition in the respective second cross-sectional shape and / or cross-section ⁇ surface and a subsequent transition back to the first located in length at least twice the diameter and / or the output width of the Hoch orientalsfilamentgarns and the amplitude of the maximum strain, ie the amount of change of the width or the height of the Hoch orientalsfilament ⁇ yarn, a fraction, advantageously a fifth of their original dimensions are.
- This limitation is a necessary constraint to the proportion of the filaments of the high power ⁇ sfilamentgarns that a change in position in the region of a cycle of deformation and / or compression of the Garnquer ⁇ section subject to as low as possible, advantageously un- 20% of the number of filaments, and on the other hand, to ensure the optimum positive locking effect in the concrete composite.
- This increasing and decreasing deformation of small amplitude in relation to the length of a cycle leads to a tension-free introduction of the tensile forces into the high-performance filament yarns in the textile concrete.
- short bond lengths are achieved on the one hand under Ge ⁇ need loads of textile concrete construction, and secondly unwanted Betonabplat tongues ver ⁇ avoided.
- the high performance can filament a flat construction ⁇ chig deformed cross section in the region of the grid spacing, or also sections have a lateral, einschnürungsarti ⁇ ge change in the cross section in the region of the grid spacing, which in the radial direction from one side or alternatively of can be formed several sides ago.
- the change in shape of the cross section preferably takes place in the direction of the main load direction, which as a rule coincides with the 0 ° direction in the reinforcing grid.
- the deformation portions may have a compression in ra ⁇ dialer direction which preferably extends obliquely to the axial direction.
- An obliquely to the axial Richutng ⁇ de compression can be performed in Hoch elegantsfilamentgarn also spi ralförmig over its entire length.
- Such a change in the cross-sectional area can be achieved at ⁇ play in that in the region of the lattice terabstandes a cross-sectional section is made by compressing the Hoch elegantsfilamentgarns.
- the compression can in this case be carried out running in the longitudinal direction, alternatively, the course of the change in shape of the cross section is also possible obliquely both rectilinearly and arcuately with respect to the axial direction.
- a curved diagonal ⁇ compression leads through surface recesses to a ⁇ be ⁇ particularly advantageous short bond length.
- the compressed cross-sectional portion may also have an axial extent that exceeds the grid width. This is insbeson ⁇ particular for small-meshed grid versions beneficial to the positive connection over a longer axial portion of time to it ⁇ possible.
- the sections with changed cross-sectional area shapes and / or cross-sectional areas are lattice form ⁇ the thread layer provided on the first to achieve the best possible Tragfä ⁇ ability of the concrete in the main load direction.
- the high-performance filament yarns in the first direction for the first thread layer may also have sections of the yarn in the axial direction, at least partially enclosing Aufdi ⁇ ckung with a ribbed sawtooth surface profile, wherein preferably the thickening of the same Ma ⁇ material as the impregnation material or from an addi ⁇ chen, preferably polymeric material, wherein more preferably the polymer material is fed strip in solid form as films ⁇ and these wedge ⁇ shaped Gradient have a variable thickness in the first direction, and particularly preferably made of a higher melting thermoplastic and contains particulate filler contents ,
- the sectionwise thickening in the axial direction can also be present without ribbed surface profile.
- the axial Ausdeh ⁇ voltage of the thickened area corresponds to a minimum diameter before ⁇ geous enough, the multiple of the diameter of the high- tungsfilamentgarns, wherein the thickness of the thickened area is only a fraction of the yarn diameter, advantageously less than half of the yarn diameter.
- the partially um ⁇ closing thickening includes, for example, the width of the yarn and can be carried out alternately, shingles on both sides.
- the same material as the impregnant of high- tungsfilamentgarns can be an optimal connection Zvi ⁇ rule of thickening and Hoch insfilamentgarn erzie ⁇ len.
- it may also be advantageous to use a different material preferably polymeric Materi ⁇ al. Melting thermoplastics for the thickenings are preferably higher is used, these particulate fillers ⁇ percentage substance may contain.
- the ribbing in relation to the later load introduction points be ⁇ vorzugt a small depth at the beginning of load application and an increasingly widening rib depth to the end of La ⁇ stone lead to back, wherein the thickened portion is preferably of the loads to be borne in the first direction over a length from a few millimeters up to about one meter.
- the Bevidungsgit ⁇ ter over the entire grating width in the end region of a lattice ⁇ web on both sides, thin, wedge-shaped at the end of the web ⁇ length increasing thickening, whose width encloses at least one transverse thread system, wherein the thickening polymer ⁇ ie ) material, which closes the Hoch antiquesfilamentgarne intimately ⁇ closes, and the polymer material in the direction of the end of the reinforcing grid has an increasing rigidity.
- the optional vorzuse ⁇ rising to optimize the introduction of force thickening may be up to published in main load direction for a length of a few millimeters at most about one meter
- the intermediate space is filled with a material stabilizing the expansion, preferably with a fine concrete mixture or a polymer material or metallic powder or a ceramic powder, particularly preferably with a combination of these materials is.
- the fibril-like widening of the yarn cross and the sections occurring widening in two Operagarnquer ⁇ sections are analogous to the continuous change of the Querschni ⁇ ttsform and / or the cross-sectional area also by ei ⁇ NEN crack-free transition to the new cross-sectional shape and cross-sectional area in which a section-wise, fibril-like widening and a sectional widening in two Operagarnabête in length a multiple of the yarn ⁇ diameter and / or the output width of the Hoch infi- lamentgarns, advantageously at least three times, and the amplitude of the maximum expansion, that is the amount of change of the yarn cross section and / or the output width of the yarn , only a fraction, advantageously not more than 1/5 of the original dimensions.
- the sectional widening in two Operagarnabitese results in a lens-like opening, whose largest diameter, ie twice the amplitude level, a maximum of the amount of a part ⁇ yarn width corresponding to, but advantageously only one thereof is Bru ⁇ chteil.
- the filled, partially occurring widenings in two Operagarnabitese lead to an optimal fit in the concrete composite with the described advantages of a continuous, sectional change in the cross-sectional shapes and
- the reinforcing grid can be designed as warp, sewn fabrics, fabric ⁇ be or scrim.
- Reinforcing grid are preferably designed as warp or Nähge ⁇ THAT CONDITION and Hoch infilamentgarne, and in particular in the first direction, comprise by a maschebil ⁇ Denden binder yarn in the crossing points of a cross-sectional ⁇ surface deformation by permanent constriction, preferably in sections, the mesh-forming binder thread, usually at the crossing points of the grid structure, a higher yarn tension is impressed, whereby the high Leis ⁇ tungsfilamentgarne undergo a permanent change in shape Quer4.000s vom- in the form of a permanent constriction.
- the crossing points of the thread layers may be in the range of 5 to 100 mm, preferably 5 to 40 mm, particularly preferably 8 to 20 mm, spaced apart.
- the thread layers preferably have 0 ° / 90 ° or 0 ° / ⁇ 45 ° or 0 ° / ⁇ 45 ° / 90 ° angle arrangements.
- the area of the cross section of the high-performance filament yarn may be in the range of 1 to 10 mm 2 , preferably 2 to 8 mm 2 .
- the inventive concept can therefore not only be ⁇ limits apply to reinforcing grid, but in general even in Hoch elegantsfilamentgarnen which are separate Elemen ⁇ te, z. B. in the form of carbon filament or ribbon, directly, ie without further processing to a reinforcing grid ter, are used.
- the cross-section surface shapes as described above and / or cross-section ⁇ surfaces may be varied to improve the form-fit connection with the concrete.
- such a reinforcing grid will then be set manufacturer that the Hoch orientalsfilamentgarne after ⁇ In venezgntechnik or impregnation with a polymer matrix with preferably before ⁇ polymer dispersions as well as thermoplastic, duro ⁇ plastic and elastomeric substances or their combinations NEN or fillers of a permanent shape with resulting cross-sectional area changes in shape are subjected to over the yarn length as matrix materials in the way of drying, crosslinking and / or curing and / or of the ex ⁇ cooling the matrix in sections, wherein the cross-section ⁇ surface shape changes first in the Thread layer occur.
- the shaping mold is preferably carried out by means of witness ⁇ that those are formed from ⁇ as a molding, in particular as synchronously to the movement direction of the reinforcing lattice Be ⁇ circumferential double ⁇ belt presses, as roller systems or in combination.
- the dies a said given before ⁇ cross-sectional area shape change repeat of the Hoch antiquesfilamentgarne corresponding profiling or engraving on at least one side of the tool, wherein a second, non-profiled or not engraved tool side of the on ⁇ acquisition of the forces acting on the Hoch intricatesfilamentgarne pressure during forming serve can.
- the molds are designed both heated and cooled and temperature-controlled, and very particularly preferably of a reinforcement grid ⁇ add the dies via sound ⁇ -like expansion elements or for the production of widenings on wedge-shaped expansion elements ⁇ ver.
- thermoplastic matrix materials are preferably processed in solid form, in particular as a ribbon or Multifilamentgar ⁇ ne, with the high-performance filament yarns to the reinforcing grid or this supplied and the impregnation by heating until melting of the thermoplastic matrix by means of an additional preheating system and / or performed in the form ⁇ tool.
- the shape change can be made according to the Bewehrungsgittervor ⁇ thrust rapport like.
- the reinforcing grid is preferably made according to one of the textile surface forming technologies warp knitting, multiaxial knitting, weaving or with slip techniques.
- the subsequent impregnation, drying and crosslinking and / or curing and / or cooling of the matrix and the shape of the Hochlei- stungsfilamentgarne carried out in an on-line process on the same ⁇ conditioning system.
- the Wei ⁇ ter kau can be done in a separate plant even after herstel ⁇ development of the as yet impregnated reinforcing grid.
- thermoplastic matrix or mixed with a crosslinking polymer dispersion is the shaping or additional transformation of the yarns with the mold as the last process step or completely carried out separately.
- polymer dispersions As matrix materials for impregnation and molding, preference is given to polymer dispersions, thermoplastic, duroplastic see or elastomeric substances or their combination verwen det, which can preferably keep depending on the application ent fillers.
- a reinforcing grid web can filament yarns to a predetermined length of web upon completion of the ⁇ oniagnieren or impregnation and / or drying / crosslinking and / or curing and / or cooling of the impregnated high performance are cut to length and in the same system or separately over the entire width of the reinforcing grid in Both end regions by a mold ⁇ tool, which is preferably designed as a wedge-shaped molding press, he drive one of the above-mentioned thickening ⁇ .
- the separate shaping has the advantage that the shaping can be made directly before the processing on the site.
- a mobile mold for example a temperature controlled molding pliers, can be used ⁇ point prior to the processing ⁇ processing of the reinforcing grid, for example, on the construction.
- the molding material can also be supplied in solid form to the polymer material as film strips, which increase in thickness in a wedge-shaped manner in the main load direction in order to permit a corresponding thickening, as described above
- the production of a reinforcing grid with sectionwise thickening is preferably carried out by pressing the high-performance filament yarns according to different intensities after impregnation in the mold of the length of the covering.
- the expansion stabilizing or fixing material is - as described above - fed and pressed, wherein preferably the high-performance filament yarns are fed as a parallel Fa ⁇ crowd to the impregnation and shaping.
- the Hoch orientalsfilamentgarne can be pregnated with the matrix in ⁇ or impregnated and on the way of drying, crosslinking and / or curing and / or cooling of the Ma ⁇ trix of the shaping sections, with resulting Queritess vom- before Wei ⁇ ter town the reinforcing grid Shape changes over the yarn length are subjected as described above.
- Fig. 1 reinforcing grid with flachbauchig ⁇ deformed cross-section of the Carbonfilamentgarne in 0 ° direction (warp direction ⁇ );
- Fig. 2 Reinforcement grid as warp knitted fabric with compacted
- Reinforcement grid as warp knit fabric with m warp thread direction carried out in sections lateral densifications (constrictions) of the carbon filament yarn;
- Fig. 6 reinforcement grid as the warp with säge leopardarti- ger, the Carbonfilamentgarn in 0 ° direction completeness, ⁇ dig or partially encircling, thickened portion wise from a polymeric material;
- FIG. 7 Reinforcement grid in the form of a warp knitted fabric with segmented fibril-type running in the warp direction.
- Fig. 12 molding crimping tool.
- the embodiments of the reinforcing grid of FIG. 1 to FIG. 10 are basically independent of the technology for Ferti ⁇ account the reinforcing grid (warp knitting, stitch bonding, weaving, and scrim art) and also for any other grid geometries such.
- FIG. 1 shows the rear side of the reinforcing grid 100, that is to say not the mesh or front side, of the warp knit section after the deformation of the impregnated high-performance filament yarn 110, preferably in the form of a carbon filament yarn, in the main load direction 112.
- the reinforcing gratings 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 consist of high-performance filament yarns 110, 210, 310, 410, 510, 610, 710, 810, 910, 1010, which in at least a first direction 112, 212, 312, 412, 512, 612, 712, 812, 912, 1012 are arranged to a first thread layer 115, 215, 315, 415, 515, 615, 715, 815, 915, 1015 and from threads 190, 290, 390, 490, 590, 690, 790 , 890, 990, 1090, in at least one of the first direction 112, 212, 312, 412, 512, 612, 712, 812, 912, 1012 deviating second Rich ⁇ tion 111, 211, 311, 411, 511, 611th , 711, 811, 911, 1011 arranged to ei
- the high-performance filament yarns 110, 210, 310, 410, 510, 610, 710, 810, 910, 1010 have an axial direction 114, 214, 314, 414, 514, 614, 714, 814, 914, 1014 and a radial direction 113, 213, 313, 413, 513, 613, 713, 813, 913, 1013.
- Verformunngabitese 120 having in the axial direction 114 from a cross-sectional shape BF via a transverse ⁇ sectional shape AF in the cross-sectional shape BF and / or a repeating, constant, steady amount-change a cross sectional area Bf over a cross sectional area Af in the cross-sectional area Bf , wherein the cross-sectional shape AF and / or cross-sectional area Af has a longitudinal extension different from that of the cross-sectional shape BF and / or cross-sectional area AF.
- a smaller original cross-sectional shape BF and / or cross-sectional area Bf there is a so-called flat-bulbous deformation.
- the high performance filament yarn 110 can also be made alternately from both sides.
- the sequence of the deformation sections 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020 of the high-performance filament yarns 110, 210, 310, 410, 510, 610, 710, 810, 910, 1010 over the length of the reinforcement grid 100 , 200, 300, 400, 500, 600, 800, 1000 is fundamentally dependent on the desired positive locking effect in the Be ⁇ tone composite and can from intersection point 180, 280, 380, 480, 580, 680, 780, 880, 980, 1080 to crossing point 180, 280, 380, 480, 580, 680, 780, 880, 980, 1080 to distances of, for example, 10 cm.
- the longitudinal extent of a deformation portion 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020 moves in the Re ⁇ gel within a grid width.
- FIG. 2 shows an advantageous embodiment with a Verfor ⁇ mung portion 220 in the axial direction 214, which has a compaction 225 in the radial direction 213th
- FIGS. 3 and 4 show advantageous embodiments with diagonally compressed cross-sectional portions 320, 420 of the high-performance filament yarns 310, 410, wherein such cross-sectional deformations 420, 420a are illustrated in FIG. 4 both in the main load direction 412 and in the auxiliary load direction 411 ,
- an arcuate embodiment is possible obliquely with respect to the longitudinal axis 414.
- Fig. 5 is a reinforcing grid displays 500 with portion wise lateral compaction (constrictions) 525 of the high- tungsfilamentgarne 500 in the radial direction 513.
- Fig. 6 shows the embodiment of the reinforcing lattice 600 with egg ⁇ ner sawtooth-like profiled sections have thickened area 625 of the Hoch antiquesfilamentgarns 610, in the manner of a Surface rippling.
- the thickened part 625 can consist of the same material 630, such as impregnation or from a 610 nachträg ⁇ Lich after impregnation of the Hoch orientalsfilamentgarns pressed on polymer material 630.
- the thicker portion 625 can completely or partially close the yarn portion 620 or only ⁇ , wherein the complete enclosing to is preferable.
- the surface ribbing of the thickening 625 can preferably be designed in the direction of the later load introduction of very fine, ie shallower depth 622, up to very coarse, ie greater depth 622.
- the rib spacing 623 remains constant in the longitudinal direction in this exemplary embodiment.
- the longitudinal extent of the thickened area 625 is dependent on the poly ⁇ mermaterial 630 and the thus formed between the polymeric material 630 and the inner composite Hoch orientalsfilamentgarn 610 length, but usually should not exceed 5 cm. at Such composite lengths of about 1 cm, the thickening 625 not over 2 cm in length are necessary and at intervals of ⁇ example 10 cm on the Hoch orientalsfilamentgarn 610 auf ⁇ bring. You can also choose larger distances.
- Fig. 7 shows an advantageous embodiment of a Bevidungsgit ⁇ ters 700, wherein the Hoch orientalsfilamentgarne reaching 710 in the main load direction 712 after the impregnation within the lattice spacing in a slightly bulbous, in the Garntiefe, fibrillar fanning 720 are present. In the resulting columns 725 of the yarn 710 z.
- the reinforcing ⁇ lattice 700 may also be completely provided with a cementitious thin ⁇ layer, whereby the subsequent positive locking effect occurs optimally in the concrete, because the composite in the same
- Fabric system with the pressed-in cement shares in the Garn ⁇ columns 725 is brought into action.
- the embodiment according to FIG. 7 is preferably suitable for a ribbon-shaped template of the high-performance filament yarns 710.
- Fig. 8 shows, in contrast, an embodiment of a Bewehrungsgit ⁇ ters 800, wherein the Hoch orientalsfilamentgarn 810 in main ⁇ load direction 812 between two points of intersection 880 into two sub-strands 810a, 810b is spliced and the lens-shaped slit is pressed together 825 with a material 830, like a
- materials 830 for example, the materials listed for the embodiment in Fig. 9, but also polymers such as thermoplastics can be used.
- the deflection of the split high-performance filament yarn 810 from the linear basic orientation is only a few tenths of a millimeter up to a few millimeters. The latter applies to particularly thick yarn strands or wide Filamentgarnb selected and large mesh widths of z. B. 40 mm and more. On average, one deviation from the straight line of about 1 mm per sub-strand in the area of the largest gap widening.
- FIG. 9 shows an embodiment of a reinforcing grid 900, wherein the Hoch orientalsfilamentgarne are fixed by a mesh form ⁇ the yarn system 990, 990a 910th Over the thread tension in the region of the mesh in the crossing area 980 of the laps 950 produces a constriction 925 Hoch orientalsfilament ⁇ yarns 910, and thus the deformation portion 920, especially in the main load direction 912. In this area of the Rei ⁇ ambient pressure is increased between the filaments 910, 990 and the subsequent impregnation essentially only on the Garnoberflä ⁇ che effective.
- FIG. 10 shows a special embodiment of a reinforcing grid 1000.
- a deformation portion 1020 in the form of a thin, keilför ⁇ -shaped thickening 1020 polymer material 1030. the top and bottom in the end portion 1060 of a reinforcing grid web.
- the deformation section 1020 typically draws the ge ⁇ entire width 1040 reinforcing grid 1000.
- the Leksausdeh ⁇ voltage is selected in dependence on the loads to be transmitted and can range from a few centimeters to range from about 1 m to during incorporation of the rail in the concrete body ensure the final charge under the specified loads.
- the Po ⁇ lymermaterial 1030, the thickened area 1020 surrounds the Beweh ⁇ approximately 1000 mesh completely in the end region of the 1060th To Un ⁇ SUPPORTING an optimal introduction of force a softer polymer may be selected from the wedge top.
- the surfaces of the thickening wedge are provided with the finest possible ribbing 1025, which can become increasingly stronger in the direction of the reinforcement grid end, ie the rib depth and width increase toward the end.
- Procedures schematically shown 11 for the manufacture of the reinforcing grid BG invention assumes that the Hoch orientalsfilamentgarne by the generally well- known method the textile surface formation such as warp knitting, stitch bonding, Multiaxial university, weaving or Fadengelegetechni ⁇ ken the reinforcing grid BG in device 1, and such reinforcing gratings BG in the online process, ie on the same plant Fig. 11, A, or in the offline process, ie on a separate plant Fig. 11, B, following the necessary impregnation and impregnation in the device.
- the textile surface formation such as warp knitting, stitch bonding, Multiaxial university, weaving or Fadengelegetechni ⁇ ken the reinforcing grid BG in device 1, and such reinforcing gratings BG in the online process, ie on the same plant Fig. 11, A, or in the offline process, ie on a separate plant Fig. 11, B, following the necessary impregnation and impre
- the Ge ⁇ overall plant I includes the manufacture of the reinforcing grid BG in Appendix A, as well as the impregnation and shaping in Appendix B.
- a further variant of the method consists in that the high-performance filament yarns HL-FG, as a parallel group of yarns, are fed without processing to a reinforcement grid BG of an impregnation and shaping installation B (second process stage as offline process) and in an analogous manner to the necessary impregnation or impregnation in the device 2 with the matrix in combination with the drying / crosslinking and / or curing and / or the cooling sections in a lead ⁇ ing modified cross-sectional area shape and / or a permanent bende changed cross-sectional area are transformed.
- the technologically per se known molding tools such as compression molding, double belt presses, and roller systems ⁇ or suitable combinations of such design principles can be used.
- the forming upper ⁇ surfaces must have the effect to be achieved forming ent ⁇ speaking profiling.
- Observing the Umfor ⁇ mung geometry on Hoch orientalsfilamentgarn HL-FG and Rap ⁇ portes the surfaces of the dies of the Einrich ⁇ tung 3 for flat bulbous forming, compaction and partial compaction of the Hoch insfilamentgarne HL-FG will have small raised stabili ⁇ relations to the forming pressure for the rich design to it ⁇ .
- the repeat is usually matched to the grid width or its multiple.
- the mold of the device 3 z. B. as a roller press, having about the Aufdickungsus groove-like recesses, so that in this area the impregnating ⁇ n istsmaterial is squeezed not or with less pressure.
- the thickened sections can also be achieved, in one ⁇ the polymer film strip the mold of the device 3, or supplied at both ends and this melt or by targeted on ⁇ softening and subsequent cooling are pressed on or around the Hoch intricatesfilamentgarn HL-FG.
- the shaping tools of the device 3 must be used for have a fibril-like widening rapport blade-like inserts or profile areas and for widening into two Operagarnabroughe wedge-shaped profile areas.
- a press tool of a device 5 preferably provided as a temperature-controlled press roller system.
- provision must be made for removal by a device 6, for example by suction, of the excess filling material.
- the profiles of the dies of the device 3 for deforming the Hoch orientalsfilamentgarne shown in FIG. 1-5 or expanding in accordance with Fig. 7 and 8 and for the thickening of FIG. 6 and 10 differ only some tenths of a millimeter up to a few milli ⁇ meters from the base of the pressing surface of the molding tool from.
- Last ⁇ res applies particularly large yarn diameter and / or -quer- cuts.
- the procedural variants of the arrangement of the bung Formge ⁇ B in the range between about impregnating means 2 and storage of the finished inventive Bewehrungsgit ⁇ ters BG are dependent on the type of impregnation matrix.
- the mold of the device 3 is preferably in the range of drying and
- a further process variant consists in that the not yet impregnated Hoch orientalsfilamentgarnen HL-FG ge ⁇ jointly thermoplastic filaments TPF, z. B. in the form of polypro ⁇ pylene bands, the reinforcing grid BG are processed o- such threads of the process zone B (Fig. 11) directly above and / or below the lattice-forming Hoch orientalsfilament ⁇ yarns HG-FG are supplied. The intimate impregnation of all filaments of the yarns is coupled directly to the molding in device 3 in this process.
- a mobi ⁇ les mold 1200 for example as a temperature-controlled compression mold with a corresponding press surface 1260 wedge-shaped presses a thermoplastic thickening on the two end portions of a cut reinforcing grid, the high-performance filament yarns HL-FG completely enclosed and the grid surfaces completely with the thermoplastic material filled in (Fig. 10).
- thermo ⁇ plastic Aufdickungsmaterialien are preferably inserted as length and infrastructureenabgepasste foil strips with wedge-shaped of Weni ⁇ gen tenths of a millimeter up to several millimeters increasing thickness in the shape of pressing pliers 1200 and in this system ⁇ peraturutz plasticized with a ribbing surface on the upper ⁇ pressed and cooled.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Woven Fabrics (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Knitting Of Fabric (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HRP20201164TT HRP20201164T1 (hr) | 2014-03-04 | 2020-07-27 | Armaturna mreža za betonsku konstrukciju |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014102861.9A DE102014102861A1 (de) | 2014-03-04 | 2014-03-04 | Bewehrungsgitter für den Betonbau, Hochleistungsfilamentgarn für den Betonbau und Verfahren zu deren Herstellung |
PCT/EP2015/054171 WO2015132157A1 (de) | 2014-03-04 | 2015-02-27 | Bewehrungsgitter für den betonbau und hochleistungsfilamentgarn für den betonbau |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3114288A1 true EP3114288A1 (de) | 2017-01-11 |
EP3114288B1 EP3114288B1 (de) | 2020-04-29 |
Family
ID=52595348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15706831.3A Active EP3114288B1 (de) | 2014-03-04 | 2015-02-27 | Bewehrungsgitter für den betonbau |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3114288B1 (de) |
DE (1) | DE102014102861A1 (de) |
HR (1) | HRP20201164T1 (de) |
WO (1) | WO2015132157A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3147393B1 (de) * | 2015-09-25 | 2022-02-09 | Leibniz-Institut für Plasmaforschung und Technologie e.V. | Textile bewehrung mittels garn und verfahren zur vorbereitung eines garns |
DE102017102366A1 (de) | 2017-02-07 | 2018-08-09 | Technische Universität Dresden | Endverankerung von textilen Flächengebilden |
DE102017107948A1 (de) * | 2017-04-12 | 2018-10-18 | Technische Universität Dresden | Bewehrungsstab zum Einbringen in eine Betonmatrix sowie dessen Herstellungsverfahren, ein Bewehrungssystem aus mehreren Bewehrungsstäben sowie ein Betonbauteil |
AT520486B1 (de) * | 2017-09-20 | 2020-11-15 | Univ Innsbruck | Bewehrungsmaterial |
US11124961B2 (en) | 2018-11-13 | 2021-09-21 | Stratasys, Inc. | System and method for 3D construction printing |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3579770D1 (de) * | 1984-07-27 | 1990-10-25 | Mitsui Constr | Verfahren zum herstellen eines eines verstaerkungsbauteils. |
JPH0292624A (ja) * | 1988-09-30 | 1990-04-03 | Kobe Steel Ltd | 長繊維強化樹脂製補強用線・棒体の製造方法 |
FR2686915B1 (fr) * | 1992-01-31 | 1998-10-16 | Gtm Batimen Travaux Publ | Dispositif pour l'ancrage sous tension de tirants en materiau composite. |
EP0560362A2 (de) * | 1992-03-13 | 1993-09-15 | KOMATSU PLASTICS INDUSTRY CO., Ltd. | Faserverstärkte Kunststoffbewehrung für Beton |
DE19530541C2 (de) * | 1995-08-19 | 1999-05-20 | Lueckenhaus Tech Textilien Gmb | Gittergewebe |
DE19702246A1 (de) * | 1997-01-23 | 1998-07-30 | Sika Ag | Flachband-Lamelle und deren Verwendung zur Verstärkung von Bauwerkteilen |
JP2004511683A (ja) * | 2000-01-13 | 2004-04-15 | ダウ グローバル テクノロジーズ インコーポレイティド | コンクリート構造物用補強棒 |
US20060090416A1 (en) * | 2004-10-29 | 2006-05-04 | Schock Bauteile Gmbh | Reinforcing element for concrete construction |
DE102005043386A1 (de) * | 2005-09-10 | 2007-03-15 | Beltec Industrietechnik Gmbh | Bewehrungskörper aus faserverstärktem Kunststoff |
EP1818437A1 (de) * | 2006-02-13 | 2007-08-15 | Milliken Europe N.V. | Ketten-Strickgewebe mit Schussfäden zum Verstärken von cementartigen Materialien |
FR2948712B1 (fr) * | 2009-08-03 | 2015-03-06 | Soletanche Freyssinet | Procede de renforcement d'une structure de construction, et ouvrage ainsi renforce |
DE102010032915A1 (de) * | 2010-07-30 | 2012-02-02 | Cristiano Bonomi | Kunststoffstrang und seine Verwendung in Beton |
HUE027065T2 (en) * | 2012-05-23 | 2016-08-29 | Groz Beckert Kg | Textile reinforced concrete building block |
-
2014
- 2014-03-04 DE DE102014102861.9A patent/DE102014102861A1/de not_active Ceased
-
2015
- 2015-02-27 EP EP15706831.3A patent/EP3114288B1/de active Active
- 2015-02-27 WO PCT/EP2015/054171 patent/WO2015132157A1/de active Application Filing
-
2020
- 2020-07-27 HR HRP20201164TT patent/HRP20201164T1/hr unknown
Also Published As
Publication number | Publication date |
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DE102014102861A1 (de) | 2015-09-10 |
EP3114288B1 (de) | 2020-04-29 |
WO2015132157A1 (de) | 2015-09-11 |
HRP20201164T1 (hr) | 2020-11-13 |
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