EP1753916A1 - Dispositif d'ancrage, barre d'ancrage et procede de fabrication d'un dispositif d'ancrage - Google Patents

Dispositif d'ancrage, barre d'ancrage et procede de fabrication d'un dispositif d'ancrage

Info

Publication number
EP1753916A1
EP1753916A1 EP05744810A EP05744810A EP1753916A1 EP 1753916 A1 EP1753916 A1 EP 1753916A1 EP 05744810 A EP05744810 A EP 05744810A EP 05744810 A EP05744810 A EP 05744810A EP 1753916 A1 EP1753916 A1 EP 1753916A1
Authority
EP
European Patent Office
Prior art keywords
anchor
anchor rod
anchoring
base
rod
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.)
Withdrawn
Application number
EP05744810A
Other languages
German (de)
English (en)
Inventor
Jürgen Grün
Robert Van Deuveren
Klaus Block
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke Artur Fischer GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP1753916A1 publication Critical patent/EP1753916A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
    • E01B1/007—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with interlocking means to withstand horizontal forces
    • 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

Definitions

  • Anchoring arrangement Anchoring arrangement, anchor rod and method for producing an anchoring arrangement
  • the invention relates to an anchoring arrangement with at least two anchor rods, which are anchored by means of a mortar in an anchor base, with the features of
  • Anchoring arrangement suitable anchor rods with the features of the preambles of claims 3 or 7 and a method for producing the
  • Anchoring arrangement with the features of the preamble of claim 9.
  • the invention is in particular for anchoring or fastening a track body to be subsequently concreted or concreted on an existing concrete base layer
  • Invention are intended, for. B. also (one- or multi-component) synthetic resin mortar and synthetic resin adhesive and other, suitable for anchoring an anchor rod in an anchor base curing compositions.
  • an anchor rod for anchoring by means of a synthetic resin adhesive is known.
  • the known anchor rod has an anchoring section with a number of expansion bodies arranged axially one behind the other in the form of
  • Expanding cones For anchoring, a hole is drilled in an anchor base, the synthetic resin adhesive is filled in and the anchor rod with its anchoring section is inserted into the borehole. The synthetic resin adhesive is distributed in a casing space surrounding the anchoring section of the anchor rod and holds the anchor rod anchored in the anchor base after hardening.
  • the known anchor rod protrudes from the anchor base and has a thread as a fastening device at its end projecting from the anchor base.
  • Fastening device there are also other options such as an eyelet, a hole, a hook or a head and the like. More.
  • the invention has for its object to propose an anchoring arrangement of the type described above, the tensile and compressive stresses in an anchor base and in an attached object due to different strains and a resulting transverse stress on the anchor rods used.
  • Another object of the invention are anchor rods suitable for the anchoring arrangement and a method for producing the anchoring arrangement.
  • the anchoring arrangement according to the invention uses two different anchor rods. It has an anchor rod, also referred to below as a fixed anchor, which holds the object immovably on the anchor base. All other anchor rods, also referred to below as loose anchors, hold the object displaceably on the anchor base. Expansion compensation is thereby possible, mechanical stresses due to different expansions of the anchor base and the object attached to it and the resulting stresses are at least reduced, ideally even negligibly small.
  • the fixed anchor holds the object in a defined position on the anchor base and together the anchor rods prevent the object from lifting off from the anchor base, for example by arching in the edge or in the central region.
  • the invention has the advantage of tolerance compensation, it is inexpensive and can be produced with little effort, it is maintenance-free per se and does not need to be checked per se, and it can also be produced retrospectively, for example when repairs to existing anchorages or fastenings become.
  • the anchoring arrangement according to the invention is preferably intended for track construction, i.e. for anchoring or fastening a track body to be subsequently concreted on an existing concrete base layer (anchor base) or also individual concrete or other sleepers on the concrete base layer.
  • claim 3 provides an anchor rod with a deformable covering in a region between the anchoring section and the fastening device.
  • the deformable covering is located in the area of a separating surface between the anchor base and the attached object.
  • the anchor rod leaves one
  • the deformable covering enables the object to be fastened to be cast without having to create a free space surrounding the anchor rod.
  • the covering of the anchor rod consists of an elastically and / or plastically deformable plastic.
  • An embodiment of the invention provides a
  • Cladding that offers a high resistance to rapid deformation, whereas they have little or at least lower resistance at slower
  • Transverse displacement is low with long exposure. For example. In track construction, this has the advantage that the loose anchor almost overlaps the forces when crossing a train
  • Strains is low.
  • One embodiment of the invention provides that the sheathing encloses the anchor rod of the loose anchor with a space.
  • the intermediate space ensures a transverse mobility of the anchor rod so that the anchor rod of the loose anchor can fulfill its function of holding the object to be fastened displaceably on the anchor base.
  • the space ensures the transverse mobility even when the
  • Anchoring rod is cast with a hardening mass such as concrete, which forms the object to be fastened. Formwork or the like is not necessary.
  • a further development of the invention provides spacers on the inside of the casing, which center the casing on the anchor rod.
  • the spacers can be knobs encircling beads or the like. An exact centering is not important here, but a space around the anchor rod, even if the width of the space changes over the circumference.
  • the spacers ensure transverse mobility in all directions of the anchor rod.
  • claim 7 provides an anchor rod with a rigid sleeve in the area between the anchoring section and the fastening device of the anchor rod.
  • stiff is meant in particular a sleeve with high resistance to deformation and high shear strength. The sleeve penetrates the interface between the anchor base and the attached object, it takes
  • the sleeve has the advantage that the same anchor rods can be used for the fixed anchor and the loose anchor (s), the fixed anchor having the rigid sleeve and the loose anchor having the deformable covering.
  • the rigid sleeve can increase the shear strength and shear strength of the fixed anchor.
  • the anchor rod of the fixed and / or the loose anchor (s) has one or more expansion bodies arranged axially one behind the other.
  • the expansion bodies expand in the direction of the fastening device
  • Anchor rod away they can have, for example, a wedge, pyramid or cone shape. They spread out the surrounding mortar used for anchoring when, when the hole in which the anchor rod is anchored, the anchor rod loosens and moves axially.
  • the manufacturing method according to the invention with the features of claim 9 provides that a fixed and one or more loose anchors are anchored at a distance from one another in an anchor base.
  • the anchor rods protrude from the anchor base, the fastening devices of the anchor rods are outside the anchor base.
  • Protective caps are placed on the fastening devices and a hardening mass is applied to the anchor base, which forms the object to be fastened after hardening.
  • the hardening mass can be concrete, for example.
  • the hardening mass encloses the anchor rods, the protective caps protruding from the mass or at least being flush with it.
  • the protective caps form recesses in the hardening mass through which the
  • Fastening devices are accessible after removing the protective caps.
  • the method according to the invention provides that after the hardening mass has set, the protective caps are removed from the fastening devices of the anchor rods and the anchor rods are tensioned. This can be done, for example, by screwing and / or tightening a nut onto a thread forming the fastening device for the anchor rods.
  • the method according to the invention makes it possible to produce the object to be fastened in a simple manner by pouring or concreting onto the anchor base and applying a prestress to the anchor rods.
  • the pretensioning causes the anchor rods to be re-spread when the borehole is loosened.
  • the recesses can be poured out in the hardening mass.
  • Figure 1 shows an anchor rod (fixed anchor) according to the invention in axial section
  • FIG. 2 shows the anchor rod from FIG. 1 in the anchored state
  • Figure 3 shows a second anchor rod according to the invention (loose anchor) in axial section
  • FIG. 4 the anchor rod from FIG. 3 in the anchored state
  • FIGS. 5a-f successive anchoring steps for producing an anchoring arrangement according to the invention.
  • the anchor rod 10 according to the invention shown in FIG. 1 has a steel rod, for example made of structural steel or a higher or high-quality steel. It shows one
  • Anchoring section 12 with a number of axially successively arranged expansion bodies 14.
  • the expansion bodies 14 are conical, they taper in the direction of a screw thread 16 which is formed on an end of the anchor rod 10 remote from the anchoring section 12.
  • the screw thread 16 forms a fastening device for the anchor rod 10.
  • the anchor rod 10 has a rigid sleeve 18, for example also made of steel, which surrounds the anchor rod 10.
  • An inner diameter of the sleeve 18 is larger than a diameter of the anchor rod 10, an annular space between the anchor rod 10 and the
  • Sleeve 18 is poured out with a hardening mass, for example a shrink-free mortar 20, which holds sleeve 18 on anchor rod 10.
  • a hardening mass for example a shrink-free mortar 20, which holds sleeve 18 on anchor rod 10.
  • an elastic perforated disk 22 and a conical socket 24 are placed on the anchor rod 10 and a nut 26 is screwed onto the screw thread 16.
  • the conical socket 24 is a perforated disk with a conical countersinking of its perforated edge on a side facing the nut 26.
  • the nut 26 is a special nut with a spherical end-face surface on an end face facing the conical socket 24, which lies in the conical countersink of the conical socket 24. This creates a kind of ball joint, the one
  • Figure 2 shows the anchoring of the anchor rod 10 in an anchor base 28, which is a concrete base layer for a track body in the illustrated and described embodiment of the invention.
  • the anchor rod 10 is stepped Borehole 30 inserted in the anchor base 28, spaces between the anchor rod 10 or its rigid sleeve 18 and the borehole 30 are filled with a composite mortar.
  • the composite mortar anchors the anchor rod 10 in the borehole 30.
  • the expansion bodies 14 in the anchoring section 12 of the anchor rod 10 cause the anchoring to be re-spread when a borehole is widened, for example as a result of
  • the anchor rod 10 and the rigid sleeve 18 surrounding it protrude from the anchor base 28, i.e. the anchor rod 10 and the rigid sleeve 18 penetrate a separating surface 32 between the anchor base 28 and an object 34 to be fastened to the anchor base 28.
  • the object to be fastened becomes
  • the anchor rod 10 with the rigid sleeve 18 can therefore also be referred to as a fixed anchor.
  • the anchor rod 10 according to the invention shown in FIGS. 3 and 4 has, instead of a rigid sleeve, a deformable covering 36 in the area between the anchoring section 12 and the screw thread 16.
  • the deformable sheath 36 consists, for example, of a plastic and in particular of a material which has a high resistance to deformation at a high rate of deformation and a lower or lower resistance to deformation at a low rate of deformation.
  • a suitable material is PTP (polyterephthalate, which is commercially available, for example, under the brand name Ultradur KR 4071).
  • the envelope has a larger inner diameter than corresponds to a diameter of the anchor rod 10, there is a space around the anchor rod 10 between the anchor rod 10 and the envelope 36.
  • Inward, circumferential beads or thickenings of the envelope 36 form spacers 37, which Center the anchor rod 10 in the casing 36 or in any case space between the anchor rod 10 and the casing 36 over the entire circumference of the
  • the intermediate space ensures a transverse mobility of the anchor rod 10 even in the anchored state. Even if the anchor is encapsulated with a hardening mass such as concrete, the transverse mobility of the anchor rod 10 is ensured after the mass has hardened. It can thereby function as
  • FIG. 4 The anchorage of the anchor rod 10 shown in FIG. 3 is shown in FIG. 4, it is carried out in the same way as described above for FIG. essential
  • Object 34 may be arranged to reduce a frictional force between the object 34 and the anchor base 28.
  • the deformable covering 36 enables the fastened object 34 to be displaced with respect to the anchor base 28
  • Anchor rod 10 from Figures 3 and 4 can therefore also be referred to as a loose anchor.
  • the anchor rod deforms as in FIG.
  • Anchor base (concrete base layer) 28 explained.
  • the track body 34 forms the object to be fastened.
  • the track body 34 is fixed in the middle with a fixed anchor, as shown in Figures 1 and 2, and in its edge areas with a loose anchor, as shown in Figures 3 and 4, attached to the anchor base 28.
  • Figure 5a-f shows the anchoring of the fixed anchor in the middle of the track body 34, the anchoring of the loose anchors takes place in the same way.
  • the stepped bore 30 is drilled in the anchor base 28 (FIG. 5a).
  • An unstaged hole is drilled for the loose anchors.
  • the composite mortar is injected into the borehole 30 and the anchor is introduced into the borehole 30 (FIG. 5b).
  • anchor either the fixed anchor, i.e. the
  • Anchor rod 10 with the rigid sleeve 18, or the loose anchor, d. H. the anchor rod 10 is meant with the deformable covering 36.
  • the amount of mortar injected is dimensioned such that the mortar fills the space between the anchor and the borehole 30.
  • the anchor projects from the anchor base 28 by about half its length.
  • a protective cap 40 is placed on the screw thread 16 and the nut 26
  • the protective cap 40 is removed, as a result of which the nut 26 is accessible.
  • the nut 26 is tightened and the anchor rod 10 is thereby biased.
  • a recess in the track body 34 formed by the protective cap 40 can be poured out with a hardening mass, for example a low-shrinkage mortar 42. This secures the nut 26 against loosening and prevents the ingress of water.
  • the fixed anchor in the middle of the track body 34 fixes the track body 34 on the anchor base 28, the loose anchors, not shown in FIG. 5, arranged laterally at a distance from the fixed anchor, allow a displacement between the track body 34 and anchor base 28 and thereby enable expansion compensation.
  • the deformable casing 36 has a high deformation resistance at a high deformation speed, the loose anchors act like the fixed anchor when subjected to a short load, for example when driving over a train, and fix the track body 34 against displacement on the anchor base.
  • a slow displacement of the track body 34 on the anchor base 28, for example by different Thermal expansion is possible with little or at least less force.
  • the anchor rod 10 of the loose anchor is subjected to only a slight transverse force and is not subjected to shear stress, at least as long as the displacement of the track body 34 relative to the anchor base 28 is not greater than a wall thickness of the covering 36 and the space between the anchor rod 10 and the covering 36 ,
  • the rigid sleeve 18 of the fixed anchor holds the anchor rod 10 free of transverse force.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

L'invention concerne un dispositif d'ancrage destiné à ancrer par exemple un corps de rail bétonné (34) sur une couche support bétonnée (28). Selon l'invention, le corps de rail (34) est ancré au moyen d'un élément d'ancrage fixe et d'un ou plusieurs éléments d'ancrage mobiles de manière à compenser des dilatations différentes. L'élément d'ancrage mobile présente une barre d'ancrage (10) ancrée au moyen de mortier dans un trou (30) pratiqué dans la base d'ancrage (28). La barre d'ancrage (10) présente un gainage déformable permettant un coulissage du corps de rail (34) sur la base d'ancrage (28).
EP05744810A 2004-06-09 2005-05-14 Dispositif d'ancrage, barre d'ancrage et procede de fabrication d'un dispositif d'ancrage Withdrawn EP1753916A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410028226 DE102004028226A1 (de) 2004-06-09 2004-06-09 Verankerungsanordnung, Ankerstange und Verfahren zur Herstellung einer Verankerungsanordnung
PCT/EP2005/005300 WO2005121453A1 (fr) 2004-06-09 2005-05-14 Dispositif d'ancrage, barre d'ancrage et procede de fabrication d'un dispositif d'ancrage

Publications (1)

Publication Number Publication Date
EP1753916A1 true EP1753916A1 (fr) 2007-02-21

Family

ID=34968263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05744810A Withdrawn EP1753916A1 (fr) 2004-06-09 2005-05-14 Dispositif d'ancrage, barre d'ancrage et procede de fabrication d'un dispositif d'ancrage

Country Status (4)

Country Link
EP (1) EP1753916A1 (fr)
CN (1) CN1965129A (fr)
DE (1) DE102004028226A1 (fr)
WO (1) WO2005121453A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006048655A1 (de) * 2006-10-14 2008-04-17 Fischerwerke Artur Fischer Gmbh & Co. Kg Anker
WO2011072802A1 (fr) * 2009-12-18 2011-06-23 Fischerwerke Gmbh & Co. Kg Douille d'ancrage
CN102605686A (zh) * 2012-04-09 2012-07-25 湖南宏禹水利水电岩土工程有限公司 一种地铁道床加固施工工艺
CN106441642B (zh) * 2016-11-24 2022-03-29 贵州大学 基于ZigBee技术的锚杆应力监测仪及其使用方法
CN108360306B (zh) * 2018-05-02 2024-05-24 宁波曙翔新材料股份有限公司 Crtsⅱ型轨道板植筋锚固系统销钉和销钉组件
KR102119595B1 (ko) * 2018-05-31 2020-06-08 충남대학교산학협력단 방호벽
CN109797751B (zh) * 2018-12-10 2024-06-11 中国电建集团华东勘测设计研究院有限公司 一种可适应大变形的锚杆结构及施工方法
KR102180358B1 (ko) * 2019-11-12 2020-11-18 위드산업(주) 선박 상가대 및 이의 시공공법
CN113883153B (zh) * 2021-10-08 2023-06-16 河南航天精工制造有限公司 一种降低自锁螺母锁紧力矩的方法及自锁螺母组件

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DE19514005A1 (de) * 1995-04-13 1996-11-14 Wiebe Hermann Grundstueck Anordnung und ein Verfahren zum Befestigen einer Betonschwelle auf einer Beton- oder Asphalt-Tragplatte
US5628161A (en) * 1995-04-28 1997-05-13 Giannuzzi; Louis N. Centering sleeve and overflow ring assembly
DE29604887U1 (de) * 1996-03-16 1997-07-17 Fischerwerke Artur Fischer Gmbh & Co Kg, 72178 Waldachtal Gleiskörper mit Fahrwegsbohlen
DE19749571B4 (de) * 1997-11-10 2004-05-06 Fischerwerke Artur Fischer Gmbh & Co. Kg Ankervorrichtung zur Befestigung von dynamisch querbelasteten Gegenständen
DE19913204B4 (de) * 1999-03-24 2004-05-27 Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg Aufgelagerte feste Fahrbahn mit Schwellenbefestigungsgliedern
DE20201927U1 (de) * 2002-02-08 2003-06-12 fischerwerke Artur Fischer GmbH & Co. KG, 72178 Waldachtal Verbundanker
DE10236534B3 (de) * 2002-08-09 2004-05-27 Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg Feste Fahrbahn und Verfahren zu ihrer Herstellung

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Also Published As

Publication number Publication date
WO2005121453A1 (fr) 2005-12-22
DE102004028226A1 (de) 2005-12-29
CN1965129A (zh) 2007-05-16

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