DK161533B - ANCHORING BAR FOR A HYDRAULIC MORTAL - Google Patents
ANCHORING BAR FOR A HYDRAULIC MORTAL Download PDFInfo
- Publication number
- DK161533B DK161533B DK637588A DK637588A DK161533B DK 161533 B DK161533 B DK 161533B DK 637588 A DK637588 A DK 637588A DK 637588 A DK637588 A DK 637588A DK 161533 B DK161533 B DK 161533B
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- DK
- Denmark
- Prior art keywords
- anchor rod
- rod according
- casing
- mortar
- sections
- Prior art date
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 18
- 230000001459 mortal effect Effects 0.000 title 1
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 23
- 239000011429 hydraulic mortar Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 238000003892 spreading Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 5
- 230000006378 damage Effects 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 230000004323 axial length Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920005573 silicon-containing polymer Polymers 0.000 claims description 2
- 229920001059 synthetic polymer Polymers 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000005336 cracking Methods 0.000 description 2
- 241000169624 Casearia sylvestris Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
- F16B13/141—Fixing plugs in holes by the use of settable material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
- F16B13/0891—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation with a locking element, e.g. wedge, key or ball moving along an inclined surface of the dowel body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
- F16B13/141—Fixing plugs in holes by the use of settable material
- F16B2013/148—Means for inhibiting adhesion between dowel or anchor bolt parts and the surrounding grouting composition
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Piles And Underground Anchors (AREA)
- Dowels (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Surgical Instruments (AREA)
- Details Of Garments (AREA)
- Corsets Or Brassieres (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Lubricants (AREA)
Abstract
Description
iin
DK 161533 BDK 161533 B
Opfindelsen angår en forankringsstang til en hydraulisk mørtel, og som har et skaft, der er udformet med mindst ét i retningen mod indføringsenden konisk udvidet afsnit.The invention relates to an anchoring rod for a hydraulic mortar and having a shaft formed with at least one in the direction towards the tapered end of the tapered end.
5 Fra DE offentiiggørelsesskrift 35 16 866 kendes en forankringsstang af denne art, som tillader forankring af en gevindstang i et borehul i en betondel ved hjælp af en bindemasse, efter at borehullet er blevet udvidet konisk i området ved bunden af borehullet. I tilfælde af at der optræder en revne i betondelen, sikrer den koniske under-10 skæring i borehullet fastgørelsen, så længe revnen ikke er for bred.5 From DE Publication 35 16 866, an anchoring rod of this kind is known which permits anchoring a threaded rod in a borehole to a concrete part by means of a binder after the borehole has been tapered in the area at the bottom of the borehole. In the event of a crack in the concrete part, the conical under-10 cut in the borehole ensures attachment as long as the crack is not too wide.
Dersom det imidlertid drejer sig om en dynamisk revne, vil fastgørelsen efterhånden forringes, idet der ved lukningen af revnen, som følge af de høje lukkekræfter, der optræder på grund af betonens armering, sker en ødelæggelse af mørtel skallen, fordi ruheden af 15 borehul væggen og ruheden af den løsnede mørtel skal medfører en ødelæggelse af mørtel skallen, når denne og borehullets væg gnider mod hinanden.However, in the case of a dynamic crack, the attachment will gradually deteriorate, as the cracking due to the high closing forces due to the reinforcement of the concrete causes the mortar shell to be destroyed because the roughness of the 15 borehole wall. and the roughness of the loosened mortar shall cause a destruction of the mortar shell as it and the wall of the borehole rub against each other.
Formålet med opfindelsen er at tilvejebringe en forankringsstang af 20 den indledningsvis nævnte art, som også i revnet beton kan belastes med bærelaster, og som er billig at fremstille.The object of the invention is to provide an anchoring rod of the kind mentioned initially, which can also be loaded with supported cargo in cracked concrete and which is inexpensive to manufacture.
Denne opgave løses ifølge opfindelsen ved, at det koniske afsnit er indrettet til i tilfælde af varierende ændringer af fastgørelsesbo-25 ringens tværdimensioner, alt efter om tværdimensionerne forøges, og forankringsstangen derved som følge af trækbelastningen på denne foretager en aksi alt udadrettet bevægelse, eller om de atter formindskes henholdsvis at udøve radialt rettede spredetrykkræfter på den omgivende mørtelskal, eller at bevirke at forankringsstangen 30 bevæges tilbage mod sin oprindelige stilling, således at ødelæggelse af mørtel skallen undgås, idet det koniske afsnits kappeflade er en omkredsflade med ringe friktion mod mørtelen, og som ikke klæber til mørtelen.This task is solved according to the invention in that the conical section is adapted to, in case of varying changes in the cross-dimensions of the fastening drill, as the cross-dimensions increase, and the anchor rod thereby, due to the tensile load on it, makes an axial all outward movement, or they are again reduced to exert radially directed spreading compressive forces on the surrounding mortar shell, respectively, or to cause the anchor rod 30 to move back to its original position, thus avoiding destruction of the mortar shell, the tapered sectional surface being a circumferential surface with little friction against the mortar, which does not adhere to the mortar.
35 Da det koniske afsnits kappeflade har en ringe friktion, dannes der ved størkningen af den hydrauliske mørtel en mørtelskal, i forhold til hvilken forankringsstangen kan forskydes aksialt, dersom mørtelskallen revner, og den indvendige diameter af mørtelskallen forandrer sig ved en dynamisk revne. Der sker da en aksial bevægelse DK 161533 B j 2 ! af forankringsstangen, hvorved konusafsnittets eller konusafsnitte-nes kappeflader tilvejebringer et spredetryk.35 As the conical section casing surface has a low friction, when the hydraulic mortar is solidified, a mortar shell is formed, relative to which the anchor rod can be axially displaced if the mortar shell cracks and the inner diameter of the mortar shell changes by a dynamic crack. There will then be an axial movement DK 161533 B j 2! of the anchoring rod, whereby the cutting surfaces of the cone section or cone sections provide a spreading pressure.
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Hensigtsmæssige udformninger og videreudformninger af opfindelsen er 5 angivet i underkravene.Suitable embodiments and further embodiments of the invention are set forth in the subclaims.
I det følgende forklares udførelseseksempler for opfindelsen nærmere under henvisning til tegningen. På tegningen viser: 10 Fig. I et sidebillede af en forankringsstang ifølge opfindelsen, fig. 2 en forankringstang ifølge fig. 1 efter fastgørelsen i et borehul ved hjælp af en hydraulisk mørtel, 15 fig. 3 en, som vist i fig. 2, fastgjort forankringsstang, henholdsvis i venstre side af figuren før opståel sen af en revne og i højre side af figuren efter opståel sen af en revne, fig. 4 et yderligere udførelseseksempel for en forankringsstang 20 ifølge opfindelsen, fig. 5 en forankringsstang med koniske afsnit med forskellig længde og forskellig hældning af de koniske flader, 25 fig. 6 en forankringsstang med koniske afsnit med forskellig hældning, men samme længde af de koniske flader, fig. 7 en forankringsstang med en endehovedbolt, 30 fig. 8 en forankringsstang med en endehovedbolt, som har et elastisk understøtningsorgan, og fig. 9 en forankringsstang med et blandehoved, der over et afbrækningssted er forbundet med forankringsstangen.Embodiments of the invention will now be explained in more detail with reference to the accompanying drawings. In the drawing: FIG. In a side view of an anchor rod according to the invention, fig. 2 shows an anchor rod according to FIG. 1 after attachment to a borehole by means of a hydraulic mortar; FIG. 3, as shown in FIG. 2, anchoring rod attached, respectively, to the left side of the figure before the crack of a crack and to the right side of the figure after the crack of a crack; FIG. 4 shows a further embodiment of an anchor rod 20 according to the invention; FIG. 5 shows an anchor rod with conical sections of different length and different inclination of the conical surfaces; FIG. 6 shows an anchoring rod with conical sections with different inclination, but the same length of the conical surfaces; FIG. 7 shows an anchor rod with an end head bolt, FIG. 8 shows an anchor rod with an end head bolt having an elastic support member, and FIG. 9 shows an anchor bar with a mixing head connected to the anchor rod over a breaking point.
35 I fig. 1 ses en forankringsstang 1 til en hydraulisk mørtel, hvis skaft 2 ved dets bageste ende har et udvendigt gevind 3 til fastgørelse af en genstand. Det udvendige gevind går over i et glat, cylindrisk afsnit 4, hvis længde tillader en tilpasning af dybden, i35 In FIG. 1 shows an anchor rod 1 for a hydraulic mortar whose shaft 2 at its rear end has an external thread 3 for attaching an object. The external thread goes into a smooth, cylindrical section 4, the length of which allows an adjustment of the depth,
DK 161533 BDK 161533 B
3 hvilken de kræfter, der indvirker på forankringsstangen 1, skal overføres til fastgørelsesbunden.3 which forces the forces acting on the anchor rod 1 to be transferred to the attachment base.
Mellem det glatte afsnit 4 og den ved den forreste ende 5 af for-5 ankringsstangen 1 anbragte blandespids 6 befinder der sig ved det i fig. 1 viste udførelseseksempel otte koniske afsnit 7. De koniske afsnit 7 aftager i diameter i retningen fra den forreste ende hen mod det glatte afsnit 4 og har ved det i fig. 1 viste udførelseseksempel samme form med undtagelse af det forreste koniske afsnit 7, 10 som går over i blandespidsen 6. De øvrige koniske afsnit 7 går hver ved det i fig. 1 viste udførelseseksempel over et stejlt, konisk afsnit 8 over i det følgende koniske afsnit 7.Between the smooth section 4 and the mixing end 6 located at the front end 5 of the anchoring rod 1 is located at the end of FIG. 1 shows eight tapered sections 7. The tapered sections 7 decrease in diameter in the direction from the front end towards the smooth section 4 and have at the end of FIG. 1 shows the same shape with the exception of the front tapered section 7, 10 which goes into the mixing tip 6. The other tapered sections 7 each go with the one shown in FIG. 1 shows a steep, tapered section 8 over the following tapered section 7.
De i en række efter hinanden anbragte koniske afsnit 7 er behandlede 15 på deres kappeflader på en sådan måde, at de efter indsætningen af forankringsstangen i en hydraulisk mørtel har en lav friktionskoefficient. Hertil er konusafsnittene 7 på deres omkredsflader forsynede med en belægning 9, der f.eks. består af en voksartig, syntetisk polymer, polytetrafluorethylen, siliconepolymer eller galvanisk 20 påførte overtræk. Det er også muligt i stedet for belægningen at anvende en omhylning med en folie, f.eks. polyethylen, polyvinyl-chlorid osv. En anden mulighed til opnåelse af en lav friktionskoefficient er at foretage en omhylning med et dybtrukkent, stift formstofhylster eller en omhylning med et dybtrukkent, tyndt metal-25 hylster.The tapered sections 7 arranged in a row one after another are treated 15 on their casing surfaces in such a way that, after insertion of the anchor rod into a hydraulic mortar, they have a low coefficient of friction. For this, the cone sections 7 are provided on their circumferential surfaces with a coating 9 which e.g. consists of a waxy synthetic polymer, polytetrafluoroethylene, silicone polymer or galvanically coated coating. It is also possible to use, instead of the coating, a sheath with a foil, e.g. polyethylene, polyvinyl chloride, etc. Another possibility of obtaining a low coefficient of friction is to make a casing with a deep-drawn, rigid plastic casing or a casing with a deep-drawn, thin metal casing.
I fig. 2 ses en fastgørelsesbund 10 af beton, i hvilken der er udformet et borehul 11, hvori den i fig. 1 viste forankringsstang 1 indsættes efter, at boringen er udfyldt med en kunstharpiksmørtel.In FIG. 2 shows a concrete bottom 10 in which a borehole 11 is formed, in which the embodiment shown in FIG. 1, the anchor rod 1 shown is inserted after the bore is filled with an artificial resin mortar.
30 Så længe fastgørelsesbunden 10 er fri for revner, der strækker sig helt ind til borehullet 11, bibeholdes den i fig. 2 viste stilling af forankringsstangen 1 på grund af den formsluttende forbindelse mellem de koniske afsnit 7 og den størknede hydrauliske mørtel 12 samt på grund af forbindelsen mellem den hydrauliske mørtel 12 og 35 fastgørelsesbunden 10.30 As long as the fixing base 10 is free of cracks extending all the way to the borehole 11, it is maintained in FIG. 2 because of the form-fitting connection between the tapered sections 7 and the solidified hydraulic mortar 12 and because of the connection between the hydraulic mortar 12 and the fastening base 10.
I fig. 3 ses i venstre halvdel af figuren et til fig. 2 svarende billede i forstørret målestok. Den højre halvdel af fig. 3 viser de ændringer, der optræder, dersom der i betonen 10 opstår en revne,In FIG. 3 is seen in the left half of the figure one to FIG. 2 corresponding image on an enlarged scale. The right half of FIG. 3 shows the changes that occur if a crack occurs in the concrete 10,
DK 161533 BDK 161533 B
4 der medfører en udvidelse af borehullet 11. Den trækbelastning, der i fig. 3 indvirker på forankringsstangen, medfører på grund af den j lave friktionskoefficient mellem de belagte eller med omhylning forsynede koniske afsnit 7 og den radiale forstørrelse af det ved 5 størkningen af den hydrauliske mørtel 12 tilvejebragte mørtel frie inderrum et aksi alt spillerum for forankringsstangen I i trækkraftens retning. Et sådan spillerum bibeholdes, indtil omkredsfladerne af de koniske afsnit 7 atter ligger an mod de ved størkningen dannede indvendige koniske flader i den hydrauliske mørtel 12 og 10 derved på grund af det fornyede formsluttende indgreb og det tilvejebragte spredetryk påny arreteres på trods af revnen. De enkelte koniske afsnit 7 trykker den revnede prop af hydraulisk mørtel 12 radialt udad og sikrer dermed trods revnen en sikker fastgørelse, sålænge spaltebredden af revnen ikke nærmer sig diameterdifferensen 15 mellem de koniske afsnits to ender.4 causing an expansion of the borehole 11. The tensile load shown in FIG. 3 acts on the anchor rod, due to the low coefficient of friction between the coated or encased sections 7 and the radial enlargement of the mortar free inner space provided by the solidification of the hydraulic mortar 12, an axial space for the anchor rod I in the traction force direction. Such clearance is retained until the circumferential faces of the tapered section 7 abut against the internal tapered surfaces formed in the hydraulic mortar 12 and 10 thereby thereby being re-arrested despite the crack due to the reshaped interlocking engagement. Each tapered section 7 pushes the cracked plug of hydraulic mortar 12 radially outward and thus ensures a secure attachment despite the crack, as long as the gap width of the crack does not approach the diameter difference 15 between the two ends of the taper.
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Som det ses i fig. 3, dannes der på grund af spillerummet ringformede hulrum 13, hvis aksiale længde afhænger af spillerummet og dermed af revnens bredde.As seen in FIG. 3, annular cavities 13 are formed due to the clearance, the axial length of which depends on the clearance and thus on the width of the crack.
2020
Ved den foran beskrevne udformning af forankringsstangen 1 opnås således, at der ved en belastning af forankringsstangen 1 opstår et spredetryk, der sikrer, at den hydrauliske mørtel 12's indgreb med borehullet H's væg selv ved en revne, der åbner sig, opretholdes i 25 tilstrækkelig grad. Efter at der er opstået en revne i betonen 10, virker det foran beskrevne klæbeanker således som en ekspansions-forankring, d.v.s. at de mange koniske afsnit 7 opdeler trækkraften langs hele længden af forankringsstangen 1. Derved opnås en trykfordeling, der bevirker en ensartet spredning. Mellem fladerne af 30 den af den hydrauliske mørtel dannede skal og omkredsfladerne af de koniske afsnit 7 dannes der ved hjælp af belægningen eller omhyl-ningen glideflader, ved hvilke der kun optræder meget ringe friktion. Derved opnås ikke blot, at den i fig. 3 viste relativbevægelse er mulig, når en revne åbner sig, men også at der, når revnen lukker 35 sig, kan ske en relativbevægelse, der udligner revnebredden.The above-described design of the anchor rod 1 is obtained so that, under a load on the anchor rod 1, a spreading pressure is obtained which ensures that the engagement of the hydraulic mortar 12 with the wall of the borehole H even with a crack opening opens is sufficiently maintained. . Thus, after a crack has occurred in the concrete 10, the above-described adhesive anchor acts as an expansion anchor, i.e. that the many tapered sections 7 divide the traction along the entire length of the anchor rod 1. Thereby, a pressure distribution is obtained which causes a uniform spread. Between the surfaces of the shell formed by the hydraulic mortar and the circumferential surfaces of the tapered section 7, sliding surfaces are formed by means of the coating or casing at which very little friction occurs. Thus, it is not only achieved that in FIG. 3 is possible when a crack opens, but also when the crack closes, a relative movement can be made that offsets the width of the crack.
Dersom der med udgangspunkt i den til højre i fig. 3 viste stilling sker en lukning af revnen, bliver den af mørtel skal1 en overførte radiale kraft på grund af de koniske afsnit 7's skråt forløbende 5 DK 161553 8 omkredsflader omsat til en i retningen mod den forreste ende 5 rettet aksi al kraft, hvorved der på grund af gi idefladerne sker en bevægelse af forankringsstangen 1 i denne retning.If, based on the right of FIG. 3, when the crack is closed, the radial force transmitted by the mortar 1 due to the inclined circumferential surface of the conical section 7 is converted to an axial force directed in the direction towards the front end 5, thereby Due to the id surfaces, anchor rod 1 moves in this direction.
5 Skønt fig. 1 og 2 viser otte koniske afsnit 7, kan et eneste konisk afsnit 7 i mange tilfælde være tilstrækkeligt. I de fleste anvendelsestilfælde er det optimalt, dersom forankringsstangen har 3-4 koniske afsnit 7.5 Although FIG. 1 and 2 show eight tapered sections 7, a single tapered section 7 may in many cases suffice. In most applications, it is optimal if the anchor rod has 3-4 tapered sections 7.
10 I fig. 4 ses en forankringsstang 1 med fire koniske afsnit 7. Ved det i fig. 4 viste udførelseseksempel går hvert konisk afsnit 7 ved dets hen mod den forreste ende 5 vendende ende over i et cylindrisk afsnit 14. Ved hjælp af de cylindriske afsnit 14 opnås en ensartet fordeling af belastningen og endvidere forhindres, at de koniske 15 afsnit kan trækkes ud af mørtel proppen ved en høj belastning, fordi den, set i længdesnit, indvendige fortandede mørtelprop på grund af de cylindriske afsnit får bredere og dermed stabilere tænder.10 In FIG. 4 shows an anchor rod 1 with four conical sections 7. In the embodiment shown in FIG. 4, each tapered section 7 at its forward end 5 faces into a cylindrical section 14. By means of the cylindrical sections 14, a uniform distribution of the load is obtained and furthermore, the tapered sections 15 can be pulled out. of the mortar plug at a high load because, seen in longitudinal section, the internal toothed mortar plug due to the cylindrical sections gets wider and thus more stable teeth.
Ved det i fig. 5 viste udførelseseksempel har forankringsstangen 1 20 ligeledes et langt, glat, cylindrisk afsnit 4, ligesom ved det i fig. 4 viste udførelseseksempel, men her er de koniske afsnit 15,16,17,18 set i retningen hen mod den forreste indstiksende 5 udformede med stigende hældning af de koniske flader. Det efter det glatte, cylindriske afsnit 4 følgende koniske afsnit 15 har f.eks.In the embodiment shown in FIG. 5, the anchor rod 1 20 also has a long, smooth, cylindrical section 4, just as with the one shown in FIG. 4, but here the tapered sections 15,16,17,18 are seen in the direction towards the front stitching 5 formed with increasing inclination of the tapered surfaces. The tapered section 15 following the smooth cylindrical section 4 has e.g.
25 en konusvinkel på 11°. Det i retningen mod indstiksenden følgende koniske afsnit 16 har en konusvinkel på 14°, det følgende koniske afsnit 17 en konusvinkel på 17° og det sidste koniske afsnit 18 en konusvinkel på 20°. Den mindste diameter af de koniske afsnit 15,16,17 og 18 er ligesom også deres største diameter ens, hvorved 30 der på grund af de forskellige konusvinkler i retningen hen mod den forreste ende fås en aksi al forkortelse af de koniske afsnit 15-18.25 at a cone angle of 11 °. The tapered section 16 following in the direction of the insertion end has a taper angle of 14 °, the following taper section 17 has a taper angle of 17 ° and the last tapered section 18 a taper angle of 20 °. The smallest diameter of the tapered sections 15,16,17 and 18 is also similar to their largest diameter, whereby, due to the different taper angles in the direction towards the front end, an axial shortening of the tapered sections 15-18 is obtained. .
På grund af hvert i retningen hen mod den forreste ende efter et konisk afsnit følgende næste konisk afsnits større hældning af den koniske flade fås der i retningen hen mod den forreste ende en 35 tiltagende optagelse af trækkræfter.Because of each inclination towards the front end after a tapered section following the next tapered section of the tapered surface, in the direction towards the front end there is an increasing absorption of tensile forces.
I modsætning til det i fig. 5 viste udførelseseksempel har det i fig. 6 viste udførelseseksempel fem forskelligt udformede, koniske afsnit 19-23 med ens længde. På grund af de koniske flader iIn contrast to that of FIG. 5 shows the embodiment shown in FIG. 6 illustrates five differently shaped conical sections 19-23 of equal length. Because of the tapered surfaces of the
DK 161533 BDK 161533 B
6 retningen mod den forreste ende stigende hældning og den samtidigt ens aksiale konuslængde øges underskæringsdybden, således som det j ses i fig. 6, i retningen hen mod den forreste ende, hvorved den j mindste diameter af de koniske afsnit 19-23 svarende til den i 5 retningen fremad voksende konusvinkel formindskes i retningen hen mod den forreste ende. Det største tværsnit af forankringsstangen 1 findes ved det stedi hvor den største kraft overføres til forankringsstangen 1. Med stigende forankringsdybde ændrer forankringsstangens minimale tværsnit sig, og underskæringsdybden vokser.6, the slope towards the front end increasing slope and the simultaneously equal axial cone length increases the undercut depth as seen in FIG. 6, in the direction towards the front end, whereby the smallest diameter of the conical sections 19-23 corresponding to the cone angle growing in the 5 direction decreases in the direction towards the front end. The largest cross-section of the anchor rod 1 is found at the point where the greatest force is transferred to the anchor rod 1. With increasing anchorage depth, the minimum cross-section of the anchor rod changes and the undercut depth increases.
10 Herved opnås at der ved ensartet diameter af borehullet 11 muliggø res en forholdsvis større underskæringsdybde under bibeholdelse af forankringsstangen l's bæreevne.Hereby it is achieved that at a uniform diameter of the borehole 11 a relatively greater undercut depth is possible while maintaining the bearing capacity of the anchor rod 1.
I fig. 7 ses en forankringsstang 1 med en endehovedbolt 24. Den 15 forreste ende af forankringsstangen 1 er ved hjælp af endehovedbol- ten 24 udformet på en sådan måde, at spredekraftkomposanten er meget | lille, og trækkraftkomposanten, der indvirker på mørtel proppen er meget stor. Endehovedbolten 24 har et stærkt konisk forløbende afsnit 25 og et cylindrisk afsnit 26.In FIG. 7 shows an anchor rod 1 with an end head bolt 24. The front end of the anchor rod 1 is formed by means of the end head bolt 24 in such a way that the spreading force component is very | small, and the traction component that affects the mortar plug is very large. The end head bolt 24 has a highly tapered section 25 and a cylindrical section 26.
20 I fig. 8 ses et lignende udførelseseksempel som i fig. 7, men som ved den forreste ende har en afslutningskonus 27, der på sin koniske omkredsflade har et elastisk mellemlægsorgan 28, der trods den stejle vinkel muliggør en bevægelse af forankringsstangen 1, der er 25 tilstrækkelig til opnåelsen af spredekræfterne i området ved de flade, koniske afsnit 7.In FIG. 8 shows a similar embodiment as in FIG. 7, but having at the front end a terminating cone 27 having on its tapered circumferential surface an elastic spacer 28 which, despite the steep angle, allows for movement of the anchor rod 1 sufficient for obtaining the spreading forces in the region of the surfaces. tapered section 7.
Fig. 9 viser en forankringsstang med et større antal koniske afsnit 7, og ved hvilken blandespidsen 6 ifølge fig. 1 er erstattet af et 30 blandehoved 29, der har et tagskær 30, og ved anvendelse af en ikke forud blandet mørtel bevirker en blanding under forankringsstangen l's indskruning i borehullet 11. Blandehovedet 29 er forbundet med det forreste koniske afsnit 7 ved hjælp af et overrivningsorgan 31, der har et så lille tværsnit, at der allerede ved en lille belast-35 ning af forankringsstangen 1 sker en afrivning af blandehovedet 29, således at den til en spredning af mørtel proppen i tilfælde af en revne nødvendige bevægelse af forankringsstangen 1 muliggøres. I stedet for et overrivningsorgan kan der også anvendes en stikforbindelse.FIG. 9 shows an anchor rod with a larger number of tapered sections 7, at which the mixing tip 6 of FIG. 1 is replaced by a mixing head 29 having a roof cutter 30 and, using an unmixed mortar, causes a mixture under the anchor rod 1's screwing into the borehole 11. The mixing head 29 is connected to the front conical section 7 by means of a tearing member. 31, which is of such a small cross-section that already at a small load of the anchor rod 1, a tearing of the mixing head 29 takes place, so that in the event of a crack the movement of the anchor rod 1 is necessary for a cracking of the mortar plug. Instead of a tearing member, a connector may also be used.
Claims (13)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3708764 | 1987-03-18 | ||
| DE3708764A DE3708764C2 (en) | 1987-03-18 | 1987-03-18 | Anchor rod for an adhesive resin anchor |
| DE8800121 | 1988-01-08 | ||
| PCT/DE1988/000121 WO1988007142A2 (en) | 1987-03-18 | 1988-03-05 | Anchoring bar for a hydraulic mortar |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK637588A DK637588A (en) | 1988-11-15 |
| DK637588D0 DK637588D0 (en) | 1988-11-15 |
| DK161533B true DK161533B (en) | 1991-07-15 |
| DK161533C DK161533C (en) | 1992-01-13 |
Family
ID=6323351
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK637488A DK161532C (en) | 1987-03-18 | 1988-11-15 | ANCHORING BAR FOR AN ARTISTIC RESPONSE CLOTHING BANKS |
| DK637588A DK161533C (en) | 1987-03-18 | 1988-11-15 | ANCHORING BAR FOR A HYDRAULIC MORTAL |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK637488A DK161532C (en) | 1987-03-18 | 1988-11-15 | ANCHORING BAR FOR AN ARTISTIC RESPONSE CLOTHING BANKS |
Country Status (6)
| Country | Link |
|---|---|
| EP (2) | EP0356425B1 (en) |
| AT (1) | ATE80927T1 (en) |
| DE (2) | DE3708764C2 (en) |
| DK (2) | DK161532C (en) |
| IE (1) | IE64780B1 (en) |
| WO (2) | WO1988007141A2 (en) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3823163A1 (en) * | 1988-07-08 | 1990-02-01 | Hilti Ag | ANCHOR ROD |
| EP0369040A1 (en) * | 1988-11-14 | 1990-05-23 | Deutscher Alpenverein E.V. | Glueable piton, particularly for use in rock faces or the like |
| ES2049374T3 (en) * | 1989-11-04 | 1994-04-16 | Upat Max Langensiepen Kg | ANCHOR BAR. |
| DE4010051C1 (en) * | 1990-03-29 | 1991-08-08 | Upat Gmbh & Co, 7830 Emmendingen, De | |
| DE4121620A1 (en) * | 1991-06-29 | 1993-01-07 | Fischer Artur Werke Gmbh | ANCHOR ROD FOR ANCHORING WITH SYNTHETIC RESIN |
| DE4204214A1 (en) * | 1992-02-13 | 1993-08-19 | Fischer Artur Werke Gmbh | ANCHOR FOR ANCHORING BY MEANS OF A COMPOSITION IN A DRILL HOLE OF A CONCRETE PART |
| DE9307551U1 (en) * | 1993-05-18 | 1994-09-29 | Fischerwerke Artur Fischer Gmbh & Co Kg, 72178 Waldachtal | Anchor bolt for anchoring using a compound |
| GB2289926B (en) * | 1994-05-17 | 1997-09-10 | Abbot Fixing Systems Ltd | Fixing socket |
| DE19522026A1 (en) * | 1995-06-17 | 1996-12-19 | Mkt Metall Kunststoff Technik | General purpose dowel unit |
| EP0763665A1 (en) * | 1995-09-18 | 1997-03-19 | Stahl GmbH | Adhesive insert anchor |
| DE19625176A1 (en) * | 1996-06-24 | 1998-01-08 | Upat Max Langensiepen Kg | Fastening element for non-resting loads |
| DE19704002A1 (en) * | 1997-02-04 | 1998-08-06 | Hilti Ag | Anchor rod for composite anchors |
| DE19712425A1 (en) * | 1997-03-25 | 1998-10-01 | Upat Max Langensiepen Kg | Xings |
| DE19716926A1 (en) * | 1997-04-23 | 1998-10-29 | Mkt Metall Kunststoff Technik | Expansion dowels, especially made of stainless steel |
| DE19725923A1 (en) * | 1997-06-19 | 1999-01-28 | Mkt Metall Kunststoff Technik | Building construction anchorage rod |
| DE19753784C2 (en) * | 1997-12-04 | 2001-08-16 | Daniel Maechtle | Fasteners for an anchor bolt |
| DE19818739A1 (en) | 1998-04-27 | 1999-10-28 | Fischer Artur Werke Gmbh | Fastening element for subsequent reinforcement connection, especially for earthquake protection |
| DE19827829A1 (en) * | 1998-06-23 | 1999-12-30 | Hilti Ag | Anchor rod for a composite anchor system |
| FR2781022B1 (en) * | 1998-07-10 | 2000-09-15 | Hilti France | RING FIXING DEVICE |
| DE19833689A1 (en) * | 1998-07-27 | 2000-02-03 | Hilti Ag | Anchor rod |
| DE59806823D1 (en) | 1998-08-08 | 2003-02-06 | Mkt Metall Kunststoff Technik | Anchor rod for an adhesive resin anchor |
| DE19955684A1 (en) * | 1999-11-19 | 2001-05-23 | Hilti Ag | Anchor rod for anchoring with organic and / or inorganic mortar compounds |
| GB2360047B (en) * | 2000-03-10 | 2002-01-23 | Cementation Found Skanska Ltd | Grouted mechanical anchors |
| US6390735B1 (en) * | 2000-06-30 | 2002-05-21 | Noranda Inc. | Apparatus and method for a yieldable tendon mine support |
| US6514013B2 (en) | 2000-11-30 | 2003-02-04 | Mkt Metall-Kunststoff-Technik Gmbh & Co. Kg | Anchor rod with surface areas and friction |
| DE10129441A1 (en) * | 2001-06-19 | 2003-01-02 | Fischer Artur Werke Gmbh | Xings |
| DE10340720A1 (en) | 2003-09-04 | 2005-04-07 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Fastening device for producing an anchoring in particular consisting of glass plates |
| DE102011017665A1 (en) * | 2011-04-28 | 2012-10-31 | Hilti Aktiengesellschaft | anchor rod |
| DE102011083153A1 (en) * | 2011-09-21 | 2013-03-21 | Hilti Aktiengesellschaft | anchor rod |
| DE102015106719A1 (en) | 2015-04-30 | 2016-11-03 | Dr. Li Anchor Profi GmbH | anchor rod |
| EP3336366A1 (en) * | 2016-12-19 | 2018-06-20 | HILTI Aktiengesellschaft | Method for coating of a cold worked multi-cone anchoring element |
| EP3569875A1 (en) * | 2018-05-14 | 2019-11-20 | HILTI Aktiengesellschaft | Anchor bolt for use in composite mortar and assembly with a composite mortar filled opening and an anchor bolt |
| EP3620670A1 (en) | 2018-09-04 | 2020-03-11 | Hilti Aktiengesellschaft | Anchor rod assembly with pumping head |
| CN111119344B (en) * | 2019-12-23 | 2021-10-08 | 深圳市华建工程项目管理有限公司 | Cross plug device for shear wall |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1366950A (en) * | 1963-06-07 | 1964-07-17 | Anciens Etablissements Goldenb | Anchoring device and method and apparatus for its manufacture |
| DE7533050U (en) * | 1975-10-17 | 1976-02-19 | Bergwerksverband Gmbh, 4300 Essen | Mountain anchor |
| DE2733007A1 (en) * | 1977-07-21 | 1979-02-08 | Hilti Ag | ADHESIVE ANCHORS |
| US4305687A (en) * | 1979-01-26 | 1981-12-15 | Jack Parker | Anchoring system for rock bolts |
| DE3014078A1 (en) * | 1980-04-12 | 1981-10-15 | BBT-Holding AG, Bösingen | Impact-driven masonry anchor bar - has e.g. plastics cap with sharp edge at insertion end and fitted over bar end |
| DE8229356U1 (en) * | 1982-10-20 | 1987-12-10 | Fischer, Artur, Dr.H.C., 7244 Waldachtal | Fastening element for anchoring in a borehole using a reactive multi-component mass |
| DE8311672U1 (en) * | 1983-04-20 | 1983-11-03 | Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum | Mountain anchor |
| DE3320460C1 (en) * | 1983-06-07 | 1984-10-18 | Thyssen Industrie Ag, 4300 Essen | Resilient mountain anchor |
| DE3516866A1 (en) * | 1985-05-10 | 1986-11-13 | Artur Dr.H.C. 7244 Waldachtal Fischer | ANCHORING A THREADED ROD BY MEANS OF A COMPOSITION |
-
1987
- 1987-03-18 DE DE3708764A patent/DE3708764C2/en not_active Expired - Fee Related
-
1988
- 1988-02-06 DE DE8888901541T patent/DE3874890D1/en not_active Expired - Lifetime
- 1988-02-06 AT AT88901541T patent/ATE80927T1/en not_active IP Right Cessation
- 1988-02-06 EP EP88901541A patent/EP0356425B1/en not_active Expired - Lifetime
- 1988-02-06 WO PCT/DE1988/000057 patent/WO1988007141A2/en active IP Right Grant
- 1988-02-26 IE IE54088A patent/IE64780B1/en not_active IP Right Cessation
- 1988-03-05 EP EP88901805A patent/EP0355092A1/en not_active Withdrawn
- 1988-03-05 WO PCT/DE1988/000121 patent/WO1988007142A2/en not_active Application Discontinuation
- 1988-11-15 DK DK637488A patent/DK161532C/en not_active IP Right Cessation
- 1988-11-15 DK DK637588A patent/DK161533C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE80927T1 (en) | 1992-10-15 |
| DE3874890D1 (en) | 1992-10-29 |
| DE3708764C2 (en) | 1995-07-13 |
| DK161532B (en) | 1991-07-15 |
| IE880540L (en) | 1988-09-18 |
| WO1988007142A2 (en) | 1988-09-22 |
| DK161533C (en) | 1992-01-13 |
| WO1988007142A3 (en) | 1988-12-01 |
| DE3708764A1 (en) | 1988-09-29 |
| WO1988007141A2 (en) | 1988-09-22 |
| DK161532C (en) | 1992-01-27 |
| DK637488A (en) | 1988-11-15 |
| IE64780B1 (en) | 1995-09-06 |
| EP0355092A1 (en) | 1990-02-28 |
| DK637588A (en) | 1988-11-15 |
| DK637488D0 (en) | 1988-11-15 |
| EP0356425A1 (en) | 1990-03-07 |
| DK637588D0 (en) | 1988-11-15 |
| WO1988007141A3 (en) | 1988-12-01 |
| EP0356425B1 (en) | 1992-09-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |