EP2507450B1 - Système d'ancrage de poteaux sur des ouvrages d'art comportant un système de rondelles à portée sphérique et de poulies à cônes - Google Patents

Système d'ancrage de poteaux sur des ouvrages d'art comportant un système de rondelles à portée sphérique et de poulies à cônes Download PDF

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Publication number
EP2507450B1
EP2507450B1 EP10801120.6A EP10801120A EP2507450B1 EP 2507450 B1 EP2507450 B1 EP 2507450B1 EP 10801120 A EP10801120 A EP 10801120A EP 2507450 B1 EP2507450 B1 EP 2507450B1
Authority
EP
European Patent Office
Prior art keywords
arrangement according
bolt
concrete
threaded
stainless steel
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.)
Not-in-force
Application number
EP10801120.6A
Other languages
German (de)
English (en)
Other versions
EP2507450A2 (fr
Inventor
Ralf Megerle
Andreas Kugler
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.)
Ed Zueblin AG
Original Assignee
Ed Zueblin AG
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 Ed Zueblin AG filed Critical Ed Zueblin AG
Publication of EP2507450A2 publication Critical patent/EP2507450A2/fr
Application granted granted Critical
Publication of EP2507450B1 publication Critical patent/EP2507450B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0023—Details, e.g. foundations

Definitions

  • the invention relates to an arrangement for fixing posts for protective walls on structures or foundations.
  • protective walls for example, noise protection, wind protection, anti-glare, sound insulation walls or the like.
  • the protective walls are sometimes subjected to high loads, with not only wind and storm exerting considerable forces on the wall elements and the posts on which they are accommodated.
  • trains or motor vehicles especially goods traffic high dynamic loads in the form of pressure and suction effect on the wall in the mounting elements and thus in the structures or foundations are initiated. So z. B. Investigations on high-speed lines of Deutsche Bahn shown that there is a high-grade dynamic load, which has a major impact on the durability of the building.
  • object of the invention discloses the features of the preamble of claim 1.
  • object of the invention is to provide in the case of extremely high demands of high-speed lines an arrangement for attachment of posts, by which excluded the negative influences of misalignment of mounting elements and the strong AC voltages in the fasteners due to the highly dynamic effects on the durability or at least reduced. Presentation of the invention This object is achieved by an arrangement for fastening posts for protective walls with the features of claim 1.
  • the negative influence of the misalignment of the mounting elements on the durability of the attachment is due to the fact that caused by the skewed threaded bolt an eccentric load introduction, which acts as a bending stress on the threaded bolt and thus represents an additional burden.
  • the compensation device which according to the invention comprises a conical socket and a spherical disk, makes it possible to compensate misalignments of the threaded bolts on the installation elements and thus to initiate the load centrally, ie in the direction of the longitudinal axis of the threaded bolt. As a rule, angle deviations of up to 3 ° can be compensated.
  • angle deviations of up to 3 ° can be compensated.
  • an interaction between loading and unloading which is often accompanied by a change of sign of the stresses in the anchoring element.
  • the continuous anchoring of the concrete structure in which no force is required over an anchoring length in the building by bonding between anchoring rod and concrete - can be the free stretch length in the component.
  • a cladding tube which is filled with suitable material, an alternative to the pure sheathing of the anchoring rod.
  • the sheathing material must be sufficiently extensible so as not to hinder the change in length of the anchoring element in the course of the prestressing. It has been shown that certain types of bitumen are very suitable. Prestressed connections require special attention with regard to corrosion protection. This results in a further requirement for the cladding material: it must ensure corrosion protection.
  • the anchoring elements are galvanized / pretreated, so that there must be no material incompatibility between the alloy and the cladding material. Also, a resistance to the surrounding material mortar and its alkaline properties is necessary. Furthermore, a high degree of diffusion-tightness is required, which also withstands the dynamic stresses (vibrations).
  • the mounting element comprises at least four anchors, which are assembled by means of cross connection bars to form a structural unit.
  • the mounting element comprises at least four anchors, which are assembled by means of cross connection bars to form a structural unit.
  • only one installation element needs to be positioned before casting the concrete of the structure or foundation, on which all threaded sections required for the attachment of the post are formed.
  • a plurality of - at least four - installation elements, which only each comprise individual anchors are provided. Such an arrangement is to be preferred if the installation elements are to be fastened by gluing in the concrete body or anchored by complete anchoring of the concrete body.
  • the anchor has a section of a ribbed steel - here, the usual structural steel Bst 500S has been found to be sufficient.
  • the threaded portion for screwing the fastening nut is usually formed on the anchor and thus designed in one piece with this.
  • the threaded portion is formed by a threaded bolt which is screwed into a threaded bore of an armature formed on the sleeve portion.
  • a spacing element be arranged between the footplate and the concrete body, which is preferably located in a centroid of the footplate.
  • the space between the foot plate and concrete body around this spacer is filled with a layer of low-shrink mortar or other suitable potting compound.
  • Fig. 1 to 3 is a section of a concrete structure 1 - for example, the cap area of a bridge - shown.
  • the prefabricated installation element is preferably embedded in the concrete body 1 or Hartge anchored, but it is also possible to attach this by gluing.
  • a post 3 On the concrete body 1 is a post 3, which is preferably made of steel and is provided with a foot plate 4, which serves to be fastened to the mounting element. On this attachment will be discussed in more detail below.
  • the protective walls are attached.
  • Fig. 1 shows a built-in at least four anchors 5 built-in part, each anchor 5 a concrete to be anchored portion 6, for example a ribbed steel (BSt 500S) and a threaded portion of stainless steel 7 includes.
  • Bt 500S ribbed steel
  • the anchors 5 are arranged substantially parallel and joined together via steel connecting rods 2 to form a structural unit with a defined spatial configuration, in particular welded together.
  • the installation element shown is poured in the course of building construction in the concrete body 1, with the post mounting galvanized threaded bolt 8 or threaded bolt made of stainless steel 8 'are screwed into the threaded portion of stainless steel 7. Alternatively, threaded bolts 8 'can already be welded to the installation element in advance.
  • the galvanized threaded bolt 8 is above the Bauwerksbetons 1 - in the mortar layer 13, the foot plate 4 and the conical-spherical disk system 9, 10 - provided with a Bitumendickbe harshung 15 to ensure the free preload length and corrosion protection. Surprisingly, it was found that without additional bituminous coating, the corrosion protection by otherwise proven galvanizing under these boundary conditions (lack of ventilation, preload) is insufficient.
  • FIG. 2 is a section through a held in a concrete body 1 device with an attached post 3 shown.
  • Several individual mounting elements 5 are anchored in the concrete body 1, for example, fixed by gluing. In the sectional view, only two of the at least four mounting elements 5 can be seen.
  • Each anchor 5 consists of a longer section of reinforcing steel BSt 500S 6 for anchoring in the concrete body 1 and a threaded portion made of stainless steel 8 ', which protrudes from the concrete body 1.
  • BSt 500S 6 for anchoring in the concrete body 1
  • a threaded portion made of stainless steel 8 ' which protrudes from the concrete body 1.
  • a Bitumendickbe GmbH 15 is attached, which prevents the frictional bond between thread 8 'and mortar bed 13.
  • the threaded bolt 8 'made of stainless steel requires no further corrosion protection - so that can be dispensed with the Bitumendickbe fürung 15 in the footplate 4 and the conical-spherical-disc system 9, 10.
  • Fig. 3 shows a section with a variant in which the concrete body 1 is completely Maschinentubert.
  • galvanized threaded rods 8 which are provided with a Bitumendickbe Anlagenung 15, introduced and biased on Bauteilober- and -unterseite with an array of balancing device 9, 10 and nuts 11, 12.
  • the post 3 in Fig. 3 owns as in Fig. 1 and 2 a foot plate 4 which is provided with holes through which the threaded portions 8, 8 'of the armature 5 extend.
  • a spacer element 14 for example a plastic spacer block, wherein the spacer element 14 is arranged at least approximately in the centroid of the base plate 4.
  • the spacer 14 around the space formed between the concrete body 1 and the base plate 4 is filled with a layer of mortar or grout 13.
  • a compensating device 9 10 galvanized nuts 11 made of high-strength steel, by means of which the base plate 4 against the concrete body 1 and the compensation layer 13 (pre-) stretched.
  • a loss-locking nut 12 made of stainless steel.
  • the mounting elements 5 are preferably made of stainless steel or galvanized steel and are cast or glued in the concrete or possibly sougeankert. Subsequently, the post 3 is placed with its base plate 4, so that the threaded portion 8, 8 'of each armature 5 is guided by corresponding holes in the base plate 4. In the case of the embodiment with galvanizing the threaded portion 8 is additionally provided with a Bitumendickbe harshung 15. To maintain a required for the alignment of the post 3 distance the spacer 14 is placed under the base plate 4, if possible in the centroid of the base plate. 4
  • the spacer element 14 is already fixedly mounted below the base plate 4, so that an additional adjustment to the centroid and eliminates the risk of slippage of the spacer 14 during installation of the post 3 no longer exists.
  • the post 3 can thus be pivoted with respect to its longitudinal axis in any direction in order to achieve an exact alignment with the desired position.
  • an intermediate securing with the nuts 11. Then, around the spacer 14 around the space between the base plate 4 and the concrete body 1 is filled with a potting compound or mortar, whereby the layer 13 results.
  • the nuts 11 are loosened and the area of the galvanized threaded rod 8, following the coating 15 already existing, is coated with bitumen under the conical-cup-spherical disk system 9, 10.
  • the compensating device 9, 10 With the interposition of the compensating device 9, 10, the high-strength, galvanized nuts 11 are screwed and prestressed again.
  • the loss-locking nut 12 is attached to additional security of the connection.
  • the Fig. 4 shows a single anchor 5 comprising a section 6 of BSt 500S for anchoring in concrete and a threaded portion 8, 8 '- either hot dip galvanized or stainless steel - for screwing the nuts 11, 12 comprises.
  • the section 6 is designed at least over part of its longitudinal extent as a ribbed steel in order to achieve the best possible positive connection with the concrete or adhesive.
  • the compensation device 9, 10 is shown in section, wherein the compensation device 9, 10 comprises a conical socket 9 and a ball disc 10 mounted thereon. These components are defined with respect to their shape in DIN 6319.
  • the threaded bolt 8 is guided by the compensating device 9, 10, whose longitudinal axis LA2 is inclined by the angle ⁇ to the system axis.
  • the cone socket 9 is placed, whose axis LA1 runs parallel to the system axis of the post.
  • the spherical disk 10 is pivoted on the conical socket 9, so that the longitudinal axis LA2 of the spherical disk is identical to the longitudinal axis LA1 of the threaded portion 8 of the armature. Due to the pivoted-up spherical disk 9, a force introduction surface extending parallel to the clamping surface of the hexagonal nut 11 is provided, so that the load absorption is exactly in the longitudinal direction the anchor 5 of the mounting element is guaranteed.
  • the angle between the longitudinal axes LA1 and LA2 is denoted by ⁇ .

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Bridges Or Land Bridges (AREA)

Claims (8)

  1. Dispositif pour la fixation de poteaux (3) pour des parois de protection sur des ouvrages en béton ou des fondations, présentant les caractéristiques suivantes :
    - au moins un élément d'ancrage (5) est prévu dans le corps en béton (1), lequel est coulé, collé, ou ancré et auquel est fixée une plaque de base (4) du poteau (3) ;
    - l'élément d'ancrage (5) conduit la charge à partir des effets se produisant sur la paroi de protection dans le corps de construction (1), des boulons filetés (8, 8') étant guidés à travers la plaque de base (4), lesquels sont connectés à l'élément d'ancrage (5) ;
    caractérisé en ce que
    - les boulons filetés (8, 8') conduisent la force centralement dans l'élément d'ancrage (5) au moyen d'un système de cavités coniques-rondelles (9, 10) et d'un écrou (11) ;
    - la connexion est fixée avec une force de précontrainte définie et déterminée par rapport aux effets se produisant pendant la durée de vie de l'ouvrage et est en outre sécurisée avec un écrou de protection anti-perte (12) ;
    - une course de serrage libre du boulon fileté (8, 8') au moins entre le boulon (8, 8') et une masse de scellement (13) est entourée avec un revêtement viscoélastique (15) pour empêcher le flux de forces entre le boulon et la masse de scellement afin que la dilatation ne soit pas empêchée.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le matériau de revêtement (15) est un bitume qui présente la propriété de ne pas attaquer le zinc et l'acier inoxydable sur toute la durée de vie de l'ouvrage et de servir en outre de protection contre la corrosion.
  3. Dispositif selon au moins l'une quelconque des revendications 1 et 2,
    caractérisé en ce que pour les boulons filetés (8), on utilise un acier zingué de grande résistance dont la solidité est inférieure à celle de l'écrou à six pans zingué (11) afin de réduire la sensibilité des organes de traction par rapport à la corrosion de fissuration sous contrainte.
  4. Dispositif selon au moins l'une quelconque des revendications 1 à 2, caractérisé en ce que l'on utilise pour les boulons filetés (8') un acier inoxydable.
  5. Dispositif selon au moins l'une quelconque des revendications 1 à 4, caractérisé en ce que la course de serrage libre s'étend dans le noyau du composant en béton (1) à l'intérieur d'un tube d'enveloppe et en ce que la fente entre le tube d'enveloppe et le boulon (8, 8') est remplie avec un matériau viscoélastique pour empêcher le flux de forces entre le boulon (8, 8') et le corps en béton (1), de sorte qu'une dilatation du boulon (8, 8') ne soit pas empêchée.
  6. Dispositif selon la revendication 5, caractérisé en ce que le matériau pour remplir le tube d'enveloppe est une graisse.
  7. Dispositif selon au moins l'une quelconque des revendications 1 à 6, caractérisé en ce que dans le cas de l'utilisation de boulons zingués (8), le revêtement épais en bitume (15), pour des raisons de protection contre la corrosion, est guidé jusqu'en dessous de l'élément d'équilibrage (9, 10).
  8. Dispositif selon au moins l'une quelconque des revendications 1 à 6, caractérisé en ce que dans le cas de l'utilisation de boulons (8') en acier inoxydable, le revêtement épais en bitume (15) n'est appliqué que dans la région de la couche de mortier (13).
EP10801120.6A 2009-12-01 2010-11-09 Système d'ancrage de poteaux sur des ouvrages d'art comportant un système de rondelles à portée sphérique et de poulies à cônes Not-in-force EP2507450B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009016293U DE202009016293U1 (de) 2009-12-01 2009-12-01 Pfostenverankerung System ZÜBLIN auf Ingenieurbauwerken mit Kugelscheiben/Kegelpfannensystem
PCT/DE2010/075126 WO2011066827A2 (fr) 2009-12-01 2010-11-09 Système d'ancrage de poteaux sur des ouvrages d'art comportant un système de rondelles à portée sphérique et de poulies à cônes

Publications (2)

Publication Number Publication Date
EP2507450A2 EP2507450A2 (fr) 2012-10-10
EP2507450B1 true EP2507450B1 (fr) 2016-04-20

Family

ID=42055631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10801120.6A Not-in-force EP2507450B1 (fr) 2009-12-01 2010-11-09 Système d'ancrage de poteaux sur des ouvrages d'art comportant un système de rondelles à portée sphérique et de poulies à cônes

Country Status (3)

Country Link
EP (1) EP2507450B1 (fr)
DE (2) DE202009016293U1 (fr)
WO (1) WO2011066827A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014194951A1 (fr) * 2013-06-06 2014-12-11 Ed. Züblin Ag Système d'ancrage de pieux demandant particulièrement peu d'entretien pour parois de protection sur des chantiers de génie civil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA988317A (en) * 1973-02-28 1976-05-04 Michel Bouchard Anchoring device for securing and positioning equipment
US4162596A (en) * 1977-09-08 1979-07-31 Damman Bernard A Anchor bolt assembly
NL191679C (nl) * 1992-09-11 1996-02-05 Moel Beton En Waterbouw B V De Werkwijze en samenstel voor het aan een heipaal bevestigen van een gesteldeel.
DE29507013U1 (de) * 1995-04-26 1996-01-25 Juergens Walter Richtelement
US7101135B2 (en) * 2002-07-19 2006-09-05 Bell Helicopter Textron, Inc. Self-aligning nut plate
DE202007003407U1 (de) * 2006-09-22 2007-06-06 Ed. Züblin Ag Nachträgliche Verankerung der Pfosten einer Lärmschutzwand auf einer Brücke
DE202007002395U1 (de) * 2007-02-17 2007-05-10 Ed. Züblin Ag Befestigung der Pfosten einer Lärmschutzwand mittels Schraubverbindungen, die gegen Lockerung derselben gesichert sind

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE202009016293U1 (de) 2010-03-25
DE112010004622A5 (de) 2013-04-11
EP2507450A2 (fr) 2012-10-10
WO2011066827A3 (fr) 2013-05-10
WO2011066827A2 (fr) 2011-06-09

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