EP2507450A2 - Züblin post anchoring system on engineering structures having a spherical washer/conical seat system - Google Patents

Züblin post anchoring system on engineering structures having a spherical washer/conical seat system

Info

Publication number
EP2507450A2
EP2507450A2 EP10801120A EP10801120A EP2507450A2 EP 2507450 A2 EP2507450 A2 EP 2507450A2 EP 10801120 A EP10801120 A EP 10801120A EP 10801120 A EP10801120 A EP 10801120A EP 2507450 A2 EP2507450 A2 EP 2507450A2
Authority
EP
European Patent Office
Prior art keywords
anchoring
concrete
bolt
post
threaded
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
Application number
EP10801120A
Other languages
German (de)
French (fr)
Other versions
EP2507450B1 (en
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/en
Application granted granted Critical
Publication of EP2507450B1 publication Critical patent/EP2507450B1/en
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.
  • Investigations on high-speed railways of the Deutsche Bahn have shown that there is a high-grade dynamic load, which has a great influence on the durability of the structure.
  • the object of the invention is, in the case of extremely high demands of high-speed lines to provide an arrangement for attachment of posts, through which the negative effects of misalignment of built-in elements and the strong AC voltages in the fasteners due to the highly dynamic effects on the Durability excluded or at least reduced.
  • 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.
  • a free length of the anchoring rod is required, in which an unrestricted pre-strain can be imposed.
  • the invention surrounded above the involvement in the concrete of the structure of the anchoring rod with a material that prevents the frictional connection between the anchoring rod and the potting material that is installed between the base plate and structural concrete. In the footplate, this is geometrically ensured by a corresponding size of the holes / holes in the plate.
  • 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 cladding material must be sufficiently extensible not to hinder the change in length of the anchoring element in the course of the bias. 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). For this purpose, especially materials are suitable, which - like bitumen - crawl under permanent force, but respond elastically with short-term force.
  • the anchoring rod in a lower strength class - which less sensitive to hydrogen-induced stress corrosion cracking than to form the nut: in particular a material choice with the material strength marking 8 (galvanized fine grain steel) or the material number 1 .4571 (stainless steel) for the threaded rod, material no. 1 .4571 (stainless steel ) for spherical disc and conical socket and the material identification number 1 .4401, strength marking 10 (galvanized fine grain structural steel) for the nut (system HV, factory lubricated) has proven to be advantageous.
  • the material identification numbers refer to common names in Europe, while analogous materials are to be used in non-European countries.
  • 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.
  • several - at least four -inclusive elements which only 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 footplate and concrete body around this spacer is filled with a layer of low-shrinkage mortar or other suitable potting compound.
  • Fig. 1 a pre-fabricated from several anchors, cast-in mounting part, for attachment of posts of the protective wall
  • Fig. 2 is a made of individual, subsequently drilled and glued anchors connection for attachment of posts of the protective wall
  • Fig. 3 is a single, subsequently introduced in continuous boreholes anchors mounted connection for attachment of posts of the protective wall
  • Fig. 4 is a designed as a single anchor mounting element in an enlarged view
  • Fig. 5 is a sectional view of a conical socket and an aligned spherical disc with threaded portion and nut
  • FIGS. 1 to 3 show a detail of a concrete structure 1-for example, the cap area of a bridge.
  • the prefabricated installation element is preferably embedded in the concrete body 1 or Wegge 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.
  • each anchor 5 comprising a section 6 to be anchored in the concrete, for example of a ribbed steel (BSt 500S) and a threaded section of stainless steel 7.
  • 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 specially 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 building concrete 1 - in the mortar layer 13, the foot plate 4 and the conical-spherical disk system 9, 10 - provided with a Bitumendickbeschich- device 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 aeration, prestressing) is insufficient.
  • FIG. 2 shows a section through a device held in a concrete body 1 with a post 3 attached thereto.
  • 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
  • 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 -Schseite with an array of balancing device 9, 10 and nuts 1 1, 12.
  • the post 3 in FIG. 3 has, as in FIGS. 1 and 2, a foot plate 4 which is provided with bores through which the threaded sections 8, 8 'of the armatures 5 extend.
  • a spacer 14 Under the foot plate 3 is a spacer 14, while- 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 element 14 is arranged at least approximately in the centroid of the base plate 4.
  • Around 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.
  • 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. In order to maintain a distance required for the alignment of the post 3, the spacer element 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 foot plate 4, so that an additional adjustment to the centroid falls and 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.
  • This is followed by an intermediate fuse with the nuts 1 1.
  • the free space between the base plate 4 and the concrete body 1 is filled with a potting compound or mortar around the spacer element 14, whereby the layer 13 results.
  • the nuts 1 1 are released and coated the area of the galvanized threaded rod 8 after the existing coating 15 to below the conical-spherical disc system 9, 10 with bitumen.
  • the high-strength, galvanized nuts 1 1 are screwed again and biased.
  • the loss-locking nut 12 is attached to additional security of the connection.
  • Fig. 4 shows a single anchor 5, which comprises a section 6 of BSt 500S for anchoring in concrete and a threaded portion 8, 8 '- either hot dip galvanizing or stainless steel - for screwing the nuts 1 1, 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 balancing device 9, 10 is shown in section, wherein the compensating 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 conical 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 running parallel to the clamping surface of the hexagonal nut 1 1 is provided, so that the load bearing is ensured exactly in the longitudinal direction of the armature 5 of the installation element.
  • the angle between the longitudinal axes LA1 and LA2 is denoted by ⁇ . LIST OF REFERENCE NUMBERS

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)

Abstract

The post anchoring according to the invention for protective walls on engineering structures provides a spherical washer/conical seat system for compensating possible angled positions with the objective of an approximately central load application, wherein the anchoring elements are preloaded and, in the preloaded free length thereof, are surrounded by a preferably viscoelastic, anti-corrosion medium. The post anchoring comprises an insert element, which is inserted into the concrete of the structure. Alternatively, a subsequent anchoring is accomplished in that holes are made in the already produced structure concrete. Said holes can be through-holes, in which case the anchoring is accomplished by means of an anchor rod that extends through the hole and a corresponding counter threaded connection. The hole can also only be made down to a required anchoring depth, in which case an anchoring rod is adhesively bonded in the drill hole.

Description

TITEL  TITLE
Pfostenverankerung System Züblin auf Ingenieurbauwerken mit Kugelscheiben- Kegelpfannensystem  Post anchoring System Züblin on engineering structures with spherical disc cone system
BESCHREIBUNG DESCRIPTION
Technisches Gebiet Technical area
Die Erfindung betrifft eine Anordnung zur Befestigung von Pfosten für Schutzwände auf Bauwerken oder Fundamenten.  The invention relates to an arrangement for fixing posts for protective walls on structures or foundations.
Stand der Technik State of the art
Beim Bau von Schutzwänden beispielsweise Lärmschutz-, Windschutz-, Blendschutz-, Schallschutzwänden oder dgl. werden auf Bauwerken oder Fundamenten in der Regel Einbauelemente einbetoniert oder nach Betonage der Bauwerke bzw. Fundamente Gewindestäbe durchgeankert oder auch eingeklebt. Die Schutzwände sind je nach Umgebungsbedingungen teilweise hohen Belastungen ausgesetzt, wobei nicht nur Wind und Sturm erhebliche Kräfte auf die Wandelemente und die Pfosten, an denen diese aufgenommen sind, ausüben. Durch vorbeifahrende Züge oder Kraftfahrzeuge, insbesondere des Güterverkehrs werden hohe dynamische Lasten in Form von Druck- und Sogwirkung über die Wand in die Einbauelemente und somit in die Bauwerke bzw. Fundamente eingeleitet. So haben z.B. Untersuchungen an Hochgeschwindigkeitsstrecken der Deutschen Bahn gezeigt, dass es hier zu einer hochgradigen dynamischen Belastung kommt, die großen Einfluss auf die Dauerhaftigkeit des Bauwerkes hat.  In the construction of protective walls, for example, noise protection, wind protection, anti-glare, sound insulation walls or the like. Embedded concrete elements or concrete anchored by concreting the structures or foundations threaded rods or glued on buildings or foundations in the rule. Depending on the environmental conditions, 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. By passing 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. Thus, e.g. Investigations on high-speed railways of the Deutsche Bahn have shown that there is a high-grade dynamic load, which has a great influence on the durability of the structure.
Eine Schiefstellung der Verankerungselemente wirkt sich auf die Dauerhaftigkeit der Verbindung in erheblichem Maße negativ aus. Da die Einbringung der Einbauelemente ein handwerklicher Vorgang ist und daher hinsichtlich der Genauigkeiten den Bedingungen der Baustelle unterworfen ist, kann eine ausreichende Reduzierung der Schiefstellung der Einbauelemente bei der Montage nicht sichergestellt werden. In der noch nicht veröffentlichten EP 09010579.2 wurde ein System aus Kegelpfanne und Kugelscheibe vorgeschlagen, das Abweichungen aus der Solllage der Verankerungsstangen zu einem gewissen Maße kompensieren kann. Dies ist jedoch für die extremen dynamischen Beanspruchungen im Bereich der Hochgeschwindigkeitsstrecken der Bahn noch verbesserungsfähig, um eine noch größere Dauerhaftigkeit der Bauwerke zu gewährleisten. An inclination of the anchoring elements has a significant negative effect on the durability of the connection. Since the incorporation of the installation elements is a manual process and therefore subject to the conditions of the construction site in terms of accuracy, a sufficient reduction of the misalignment of the mounting elements during assembly can not be ensured. In the not yet published EP 09010579.2 has proposed a system of conical socket and spherical disc, which can compensate for deviations from the desired position of the anchoring rods to a certain extent. However, this can still be improved for the extreme dynamic stresses in the area of the high-speed tracks of the railway in order to ensure even greater durability of the structures.
Aufgabe der Erfindung Object of the invention
Aufgabe der Erfindung ist es, für den Fall der extrem hohen Anforderungen der Hochgeschwindigkeitsstrecken eine Anordnung zur Befestigung von Pfosten zu schaffen, durch welche die negativen Einflüsse der Schiefstellung von Einbau- elementen und auch der starken Wechselspannungen in den Befestigungselementen infolge der hochgradig dynamischen Einwirkungen auf die Dauerhaftigkeit ausgeschlossen oder zumindest reduziert werden.  The object of the invention is, in the case of extremely high demands of high-speed lines to provide an arrangement for attachment of posts, through which the negative effects of misalignment of built-in elements and the strong AC voltages in the fasteners due to the highly dynamic effects on the Durability excluded or at least reduced.
Darstellung der Erfindung Presentation of the invention
Diese Aufgabe wird durch eine Anordnung zur Befestigung von Pfosten für Schutzwände mit den Merkmalen des Anspruchs 1 gelöst.  This object is achieved by an arrangement for fastening posts for protective walls with the features of claim 1.
Der negative Einfluss der Schiefstellung der Einbauelemente auf die Dauerhaftigkeit der Befestigung ist auf die Tatsache zurückzuführen, dass durch die schief gestellten Gewindebolzen eine exzentrische Lasteinleitung entsteht, welche als Biegebeanspruchung auf die Gewindebolzen wirkt und damit eine zusätzliche Belastung darstellt. Die Ausgleichsvorrichtung, die erfindungsgemäß eine Kegelpfanne und eine Kugelscheibe umfasst, ermöglicht es, Schiefstellungen der Gewindebolzen an den Einbauelementen auszugleichen und damit die Last zentrisch, d.h. in Richtung der Längsachse des Gewindebolzens einzuleiten. In der Regel können Winkelabweichungen bis zu 3° ausgeglichen werden. Darüber hinaus entsteht durch die wiederkehrende hohe dynamische Belastung auf das Befestigungsdetail eine Wechselwirkung zwischen Be- und Entlastung, die häufig mit einem Vorzeichenwechsel der Spannungen im Verankerungselement einher geht. Durch Aufbringen einer definierten Vorspannung auf die Verankerung kann die Verformung der Verbindung - und damit eine zusätzliche Abweichung des Pfostens aus der Solllage mit den zugehörigen Effekten - und die Spannungssituation im Element verändert werden, so dass hinsichtlich der Betriebsfestigkeit und damit der Dauerhaftigkeit der Verankerungsverbindung eine deutliche Verbesserung erzielt wird. Zur Sicherstellung des erforderlichen Vorspannniveaus der Verbindung werden bei der Bemessung relevante Einflussfaktoren über den Zeitraum der Nutzung berücksichtigt und die Vorspannkraft entsprechend berechnet und an der Schraubverbindung festgelegt. Dennoch besteht zusätzlich über die gesamte Nutzungsdauer die Möglichkeit, die Anordnung nachzuspannen. 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. In addition, due to the recurrent high dynamic load on the fastening detail, an interaction between loading and unloading, which is often accompanied by a change of sign of the stresses in the anchoring element. By applying a defined preload on the anchoring the deformation of the compound - and thus an additional deviation of the post from the desired position with the associated effects - and the voltage situation can be changed in the element, so that in terms of durability and thus the durability of the anchoring compound a significant Improvement is achieved. To ensure the required Preload levels of the connection are taken into account in the design relevant influencing factors over the period of use and the preload force calculated accordingly and fixed at the screw. Nevertheless, there is also the option of restoring the arrangement over the entire service life.
Zur Realisierung der Vorspannung ist eine freie Länge des Verankerungsstabes erforderlich, in der diesem eine unbehinderte Vordehnung aufgezwungen werden kann. Hierfür wird erfindungsgemäß oberhalb der Einbindung in den Beton des Bauwerkes der Verankerungsstab mit einem Werkstoff umgeben, der den Kraftschluss zwischen dem Verankerungsstab und dem Vergussmaterial, das zwischen Fußplatte und Bauwerksbeton eingebaut ist, verhindert. In der Fußplatte ist dies geometrisch durch eine entsprechende Größe der Durchbohrungen / Löcher in der Platte sichergestellt.  To realize the bias, a free length of the anchoring rod is required, in which an unrestricted pre-strain can be imposed. For this purpose, according to the invention surrounded above the involvement in the concrete of the structure of the anchoring rod with a material that prevents the frictional connection between the anchoring rod and the potting material that is installed between the base plate and structural concrete. In the footplate, this is geometrically ensured by a corresponding size of the holes / holes in the plate.
In einer Variante der Erfindung - der durchgängigen Durchankerung des Betonbauwerkes, bei der keine Krafteinleitung über eine Verankerungslänge in das Bauwerk durch Verbund zwischen Verankerungsstab und Beton erforderlich ist - kann die freie Dehnlänge im Bauteil liegen. Hier ist der Einbau eines Hüllrohres, das mit geeignetem Material verfüllt ist, eine Alternative zur reinen Umman- telung des Verankerungsstabes.  In a variant of the invention - 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. Here is the installation of a cladding tube, which is filled with suitable material, an alternative to the pure sheathing of the anchoring rod.
Der Ummantelungswerkstoff muss ausreichend dehnfähig sein, um die Längenänderung des Verankerungselementes im Zuge der Vorspannung nicht zu behindern. Es hat sich gezeigt, dass bestimmte Bitumensorten sehr geeignet sind.  The cladding material must be sufficiently extensible not to hinder the change in length of the anchoring element in the course of the bias. It has been shown that certain types of bitumen are very suitable.
Vorgespannte Verbindungen bedürfen eines besonderen Augenmerkes hinsichtlich des Korrosionsschutzes. Somit ergibt sich an den Ummantelungswerkstoff eine weitere Anforderung: er muss den Korrosionsschutz sicherstellen. In der Regel sind die Verankerungselemente verzinkt / vorbehandelt, so dass es zu keiner Materialunverträglichkeit zwischen Legierung und Ummantelungswerkstoff kommen darf. Auch eine Beständigkeit gegenüber dem umgebenden Werkstoff Mörtel und dessen alkalischen Eigenschaften ist notwendig. Weiter ist eine hohe Diffusionsdichtigkeit gefordert, die auch den dynamischen Beanspruchungen (Vibrationen) standhält. Hierfür sind besonders Materialien geeignet, die - wie Bitumen - zwar bei dauerhafter Krafteinwirkung kriechen, bei kurzfristiger Krafteinwirkung hingegen elastisch reagieren.  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. As a rule, 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). For this purpose, especially materials are suitable, which - like bitumen - crawl under permanent force, but respond elastically with short-term force.
Hinsichtlich der Korrosionsthematik - vor allem der Spannungsrisskorrosion in vorgespanntem Stahl - hat es sich überraschenderweise als vorteilhaft gezeigt, den Verankerungsstab in einer geringeren Festigkeitsklasse - die mit einer ge- ringeren Empfindlichkeit hinsichtlich der wasserstoffinduzierten Spannungsrisskorrosion einhergeht - als die Mutter auszubilden: besonders eine Werkstoffwahl mit der Werkstoff-Festigkeitskennzeichnung 8 (verzinkter Feinkornbaustahl) oder der Werkstoffnummer 1 .4571 (nichtrostender Stahl) für den Gewindestab, der Werkstoff n ummer 1 .4571 (nichtrostender Stahl) für Kugelscheibe und Kegelpfanne und der Werkstoffkennnummer 1 .4401 , Festigkeitskennzeichnung 10 (verzinkter Feinkornbaustahl) für die Mutter (System HV, werkseitig geschmiert) hat sich als vorteilhaft erwiesen. Die Werkstoffkennnummern beziehen sich auf in Europa übliche Bezeichnungen, im außereuropäischen Ausland sind analoge Werkstoffe zu verwenden. With regard to the corrosion issue - especially the stress corrosion cracking in toughened steel - it has surprisingly been found advantageous to use the anchoring rod in a lower strength class - which less sensitive to hydrogen-induced stress corrosion cracking than to form the nut: in particular a material choice with the material strength marking 8 (galvanized fine grain steel) or the material number 1 .4571 (stainless steel) for the threaded rod, material no. 1 .4571 (stainless steel ) for spherical disc and conical socket and the material identification number 1 .4401, strength marking 10 (galvanized fine grain structural steel) for the nut (system HV, factory lubricated) has proven to be advantageous. The material identification numbers refer to common names in Europe, while analogous materials are to be used in non-European countries.
Gemäß einer Ausgestaltung der Erfindung umfasst das Einbauelement mindestens vier Anker, die mittels Querverbindungsstäben zu einer Baueinheit zusammengesetzt sind. Dadurch braucht vor dem Gießen des Betons des Bauwerkes oder Fundamentes lediglich ein Einbauelement positioniert zu werden, an dem alle für die Befestigung des Pfostens erforderlichen Gewindeabschnitte ausgebildet sind. Alternativ dazu ist es auch möglich, dass mehrere - mindestens vier -Einbauelemente, die lediglich jeweils einzelne Anker umfassen, vorgesehen sind. Eine solche Anordnung ist dann zu bevorzugen, wenn die Einbauelemente durch Verkleben im Betonkörper befestigt oder durch vollständiges Durchankern des Betonkörpers verankert werden sollen. According to one embodiment of the invention, the mounting element comprises at least four anchors, which are assembled by means of cross connection bars to form a structural unit. As a result, 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. Alternatively, it is also possible that several - at least four -inclusive elements, which only 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.
Um die Einbauelemente besonders gut mit dem Beton zu verbinden, ist es vorteilhaft, dass die Anker einen Abschnitt aus einem Rippenstahl - hier hat sich der übliche Baustahl Bst 500S als ausreichend erwiesen - aufweisen. Der Gewindeabschnitt zum Aufschrauben der Befestigungsmutter ist in der Regel am Anker angeformt und somit einstückig mit diesem ausgeführt. Alternativ dazu ist es jedoch auch möglich, dass der Gewindeabschnitt durch einen Gewindebolzen gebildet ist, der in eine Gewindebohrung eines am Anker ausgebildeten Hülsenabschnitts eingeschraubt ist. In order to connect the installation elements particularly well with the concrete, it is advantageous that 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. Alternatively, however, it is also possible that the threaded portion is formed by a threaded bolt which is screwed into a threaded bore of an armature formed on the sleeve portion.
Zur Ausrichtung der Fußplatte dahingehend, dass der Pfosten in der Solllage - meistens der Vertikalen - ausgerichtet ist, wird vorgeschlagen, dass zwischen der Fußplatte und dem Betonkörper ein Abstandselement angeordnet ist, das sich vorzugsweise in einem Flächenschwerpunkt der Fußplatte befindet. Der Raum zwischen Fußplatte und Betonkörper um dieses Abstandselement herum wird mit einer Schicht aus einem schwindarmen Mörtel oder einer anderen geeigneten Vergussmasse gefüllt. To align the footplate to the effect that the post is oriented in the desired position, usually the vertical, it is proposed that 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 footplate and concrete body around this spacer is filled with a layer of low-shrinkage mortar or other suitable potting compound.
Ein Ausführungsbeispiel der Erfindung ist nachstehend anhand der Zeichnungen näher erläutert. Die schematischen Figuren zeigen: An embodiment of the invention is explained below with reference to the drawings. The schematic figures show:
Fig. 1 ein aus mehreren Ankern vorab gefertigtes, eingegossenes Einbauteil, zur Befestigung von Pfosten der Schutzwand Fig. 1 a pre-fabricated from several anchors, cast-in mounting part, for attachment of posts of the protective wall
Fig. 2 eine aus einzelnen, nachträglich eingebohrten und verklebten Ankern hergestellte Verbindung, zur Befestigung von Pfosten der Schutzwand Fig. 2 is a made of individual, subsequently drilled and glued anchors connection for attachment of posts of the protective wall
Fig. 3 eine aus einzelnen, nachträglich in durchgängigen Bohrlöchern eingebrachten Ankern angebrachte Verbindung, zur Befestigung von Pfosten der Schutzwand Fig. 3 is a single, subsequently introduced in continuous boreholes anchors mounted connection for attachment of posts of the protective wall
Fig. 4 ein als einzelner Anker ausgeführtes Einbauelement in vergrößerter Darstellung Fig. 4 is a designed as a single anchor mounting element in an enlarged view
Fig. 5 eine Schnittdarstellung einer Kegelpfanne und einer ausgerichteten Kugelscheibe mit Gewindeabschnitt und Mutter Fig. 5 is a sectional view of a conical socket and an aligned spherical disc with threaded portion and nut
In den Fig. 1 bis 3 ist ein Ausschnitt eines Betonbauwerks 1 - beispielsweise der Kappenbereich einer Brücke - dargestellt. Das vorgefertigte Einbauelement ist vorzugsweise im Betonkörper 1 einbetoniert oder durchgeankert, es besteht jedoch auch die Möglichkeit, dieses durch Verkleben zu befestigen. Auf dem Betonkörper 1 befindet sich ein Pfosten 3, der vorzugsweise aus Stahl besteht und mit einer Fußplatte 4 versehen ist, die dazu dient, an dem Einbauelement befestigt zu werden. Auf diese Befestigung wird nachfolgend noch näher eingegangen. An den Pfosten 3 werden die Schutzwände angebracht. FIGS. 1 to 3 show a detail of a concrete structure 1-for example, the cap area of a bridge. The prefabricated installation element is preferably embedded in the concrete body 1 or durchge anchored, but it is also possible to attach this by gluing. 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. At the post 3, the protective walls are attached.
Fig. 1 zeigt ein aus mindestens vier Ankern 5 bestehendes Einbauteil, wobei jeder Anker 5 einen im Beton zu verankernden Abschnitt 6 beispielsweise aus einem Rippenstahl (BSt 500S) und einem Gewindeabschnitt mit Innengewinde aus nichtrostendem Stahl 7 umfasst. Die Anker 5 sind im Wesentlichen parallel angeordnet und über aus Stahl bestehende Verbindungsstäbe 2 zu einer Baueinheit mit einer definierten räumlichen Konfiguration zusammengefügt, insbe- sondere zusammengeschweißt. Das dargestellte Einbauelement wird im Zuge der Bauwerksherstellung in den Betonkörper 1 eingegossen, mit der Pfostenmontage werden verzinkte Gewindebolzen 8 oder Gewindebolzen aus nichtrostendem Stahl 8' in den Gewindeabschnitt aus nichtrostendem Stahl 7 eingeschraubt. Alternativ können Gewindebolzen 8' bereits vorab auf das Einbauelement geschweißt werden. Der verzinkte Gewindebolzen 8 wird oberhalb des Bauwerksbetons 1 - im Bereich der Mörtelschicht 13, der Fussplatte 4 und des Kegelpfannen-Kugelscheiben-Systemes 9, 10 - mit einer Bitumendickbeschich- tung 15 zur Sicherstellung der freien Vorspannlänge und des Korrosionsschutzes versehen. Überraschenderweise zeigte sich, dass ohne zusätzliche Bitu- menbeschichtung der Korrosionsschutz durch ansonsten bewährte Verzinkung unter diesen Randbedingungen (fehlende Belüftung, Vorspannung) nicht ausreicht. 1 shows a built-in part consisting of at least four anchors 5, each anchor 5 comprising a section 6 to be anchored in the concrete, for example of a ribbed steel (BSt 500S) and a threaded section of stainless steel 7. 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 specially 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 building concrete 1 - in the mortar layer 13, the foot plate 4 and the conical-spherical disk system 9, 10 - provided with a Bitumendickbeschich- device 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 aeration, prestressing) is insufficient.
In Fig. 2 ist ein Schnitt durch eine in einem Betonkörper 1 gehaltene Vorrichtung mit einem daran befestigten Pfosten 3 gezeigt. Dabei sind mehrere einzelne Einbauelemente 5 im Betonkörper 1 verankert, beispielsweise durch Verklebung befestigt. In der Schnittdarstellung sind lediglich zwei der mindestens vier Einbauelemente 5 zu sehen. Jeder Anker 5 besteht aus einem längeren Abschnitt aus Betonstahl BSt 500S 6 zur Verankerung im Betonkörper 1 und einem Gewindeabschnitt aus Edelstahl 8', der aus dem Betonkörper 1 herausragt. Im Bereich des Mörtelbettes 13 wird eine Bitumendickbeschichtung 15 angebracht, die den kraftschlüssigen Verbund zwischen Gewinde 8' und Mörtelbett 13 verhindert. Der Gewindebolzen 8' aus Edelstahl bedarf keines weiteren Korrosionsschutzes - so dass auf die Bitumendickbeschichtung 15 im Bereich der Fußplatte 4 und des Kegelpfannen-Kugelscheiben-Systems 9, 10 verzichtet werden kann. FIG. 2 shows a section through a device held in a concrete body 1 with a post 3 attached thereto. 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. In the area of the mortar bed 13 a Bitumendickbeschichtung 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 Bitumendickbeschichtung 15 in the footplate 4 and the conical-spherical-disc system 9, 10.
Fig. 3 zeigt einen Schnitt mit einer Variante, bei der der Betonkörper 1 komplett durchankert wird. In nachträglich hergestellten Bohrlöchern werden verzinkte Gewindestäbe 8, die mit einer Bitumendickbeschichtung 15 versehen sind, eingebracht und an Bauteilober- und -Unterseite mit einer Anordnung von Ausgleichsvorrichtung 9, 10 und Muttern 1 1 , 12 vorgespannt. Fig. 3 shows a section with a variant in which the concrete body 1 is completely durchankert. In subsequently produced boreholes galvanized threaded rods 8, which are provided with a Bitumendickbeschichtung 15, introduced and biased on Bauteilober- and -Unterseite with an array of balancing device 9, 10 and nuts 1 1, 12.
Der Pfosten 3 in Fig. 3 besitzt wie in Fig. 1 und 2 eine Fußplatte 4, die mit Bohrungen versehen ist, durch die sich die Gewindeabschnitte 8, 8' der Anker 5 erstrecken. Unter der Fußplatte 3 befindet sich ein Abstandselement 14, bei- spielsweise ein Kunststoff-Distanzklotz, wobei das Abstandselement 14 mindestens annähernd im Flächenschwerpunkt der Fußplatte 4 angeordnet ist. Um das Abstandselement 14 herum ist der zwischen dem Betonkörper 1 und der Fußplatte 4 gebildete Raum mit einer Schicht aus Mörtel oder Vergussmasse 13 gefüllt. The post 3 in FIG. 3 has, as in FIGS. 1 and 2, a foot plate 4 which is provided with bores through which the threaded sections 8, 8 'of the armatures 5 extend. Under the foot plate 3 is a spacer 14, while- For example, a plastic spacer block, wherein the spacer element 14 is arranged at least approximately in the centroid of the base plate 4. Around 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.
Auf die Gewindeabschnitte 8, 8' der Anker 5 sind unter Zwischenschaltung von je einer Ausgleichsvorrichtung 9, 10 verzinkte Muttern 1 1 aus hochfestem Stahl aufgeschraubt, mittels derer die Fußplatte 4 gegen den Betonkörper 1 bzw. die Ausgleichsschicht 13 (vor-)gespannt ist. Eine zusätzliche Sicherung gegen Lösen dieser Verbindung erfolgt mit einer Verlier-Sicherungsmutter 12 aus nichtrostendem Stahl. On the threaded portions 8, 8 'of the armature 5 are galvanized nuts 11 1 made of high-strength steel with the interposition of a compensating device 9, 10, by means of which the base plate 4 against the concrete body 1 and the compensation layer 13 (pre-) stretched. An additional safeguard against loosening this connection is made with a loss-locking nut 12 made of stainless steel.
Die in Fig. 1 und 2 nicht näher beschriebene Befestigung der Fußplatte 4 auf dem Betonkörper 1 erfolgt ebenso mit Muttern 1 1 , 12 an Gewindeabschnitten 8, 8' der Anker 5 unter Zwischenschaltung von Ausgleichsvorrichtungen 9, 10, wie dies in Fig. 3 angegeben ist. Die Ausgleichsvorrichtung 9, 10, die später noch näher erläutert wird, ermöglicht es - innerhalb bestimmter Grenzen -, durch Schiefstellung bedingte Winkelabweichungen von den Längsachsen der Anker auszugleichen. Dadurch wird eine zentrische Lasteinleitung der von der beim Spannen der Mutter 1 1 auf dem Gewindeabschnitt 8, 8' erzeugten Spannkraft in den Anker 5 erreicht. Eine durch handwerkliche Tätigkeit auf der Baustelle bei der Fertigung des Betonbauwerks bzw. Betonkörpers 1 bedingte Winkelabweichung α ist in Fig. 5 dargestellt. The unspecified in Fig. 1 and 2 attachment of the base plate 4 on the concrete body 1 is also done with nuts 1 1, 12 of threaded portions 8, 8 'of the armature 5 with the interposition of balancing devices 9, 10, as indicated in Fig. 3 is. The compensation device 9, 10, which will be explained in more detail later, makes it possible - within certain limits - to compensate for skewed angle deviations from the longitudinal axes of the anchor. As a result, a centric load introduction of the clamping force generated by the clamping of the nut 1 1 on the threaded portion 8, 8 'in the armature 5 is achieved. An angle deviation α caused by manual work on the construction site in the manufacture of the concrete structure or concrete body 1 is shown in FIG.
Die Einbauelemente 5 bestehen vorzugsweise aus Edelstahl oder verzinktem Stahl und werden im Beton eingegossen oder verklebt bzw ggf. durchgeankert. Anschließend wird der Pfosten 3 mit seiner Fußplatte 4 aufgesetzt, so dass der Gewindeabschnitt 8, 8' jedes Ankers 5 durch entsprechende Bohrungen der Fußplatte 4 geführt wird. Im Falle der Ausführung mit Verzinkung ist der Gewindeabschnitt 8 zusätzlich mit einer Bitumendickbeschichtung 15 versehen. Zur Aufrechterhaltung eines für die Ausrichtung des Pfostens 3 erforderlichen Ab- stands wird unter der Fußplatte 4 das Abstandselement 14 platziert, und zwar möglichst im Flächenschwerpunkt der Fußplatte 4. The mounting elements 5 are preferably made of stainless steel or galvanized steel and are cast or glued in the concrete or possibly durchgeankert. 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 Bitumendickbeschichtung 15. In order to maintain a distance required for the alignment of the post 3, the spacer element 14 is placed under the base plate 4, if possible in the centroid of the base plate 4.
Alternativ ist das Abstandselement 14 bereits fest unterhalb der Fußplatte 4 angebracht, so dass eine zusätzliche Justierung zum Flächenschwerpunkt ent- fällt und auch die Gefahr eines Verrutschens des Abstandselementes 14 beim Aufstellen des Pfostens 3 nicht mehr besteht. Alternatively, the spacer element 14 is already fixedly mounted below the foot plate 4, so that an additional adjustment to the centroid falls and the risk of slippage of the spacer 14 during installation of the post 3 no longer exists.
Der Pfosten 3 kann somit bezüglich seiner Längsachse in jede beliebige Richtung verschwenkt werden, um eine exakte Ausrichtung zur Solllage zu erreichen. Es folgt eine Zwischensicherung mit den Muttern 1 1 . Sodann wird um das Abstandselement 14 herum der Freiraum zwischen Fußplatte 4 und dem Betonkörper 1 mit einer Vergussmasse oder Mörtel verfüllt, wodurch sich die Schicht 13 ergibt. Nach dem Aushärten der Verguss-Schicht 13 werden die Muttern 1 1 gelöst und der Bereich des verzinkten Gewindestabes 8 im Anschluss an die bereits bestehende Beschichtung 15 bis unter das Kegelpfannen- Kugelscheiben-Systems 9, 10 mit Bitumen beschichtet. Unter Zwischenfügung der Ausgleichsvorrichtung 9, 10 werden die hochfesten, verzinkten Muttern 1 1 erneut aufgeschraubt und vorgespannt. Abschließend wird zur zusätzlichen Sicherung der Verbindung die Verlier-Sicherungsmutter 12 angebracht.  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. This is followed by an intermediate fuse with the nuts 1 1. Then, the free space between the base plate 4 and the concrete body 1 is filled with a potting compound or mortar around the spacer element 14, whereby the layer 13 results. After curing of the potting layer 13, the nuts 1 1 are released and coated the area of the galvanized threaded rod 8 after the existing coating 15 to below the conical-spherical disc system 9, 10 with bitumen. With the interposition of the balancing device 9, 10, the high-strength, galvanized nuts 1 1 are screwed again and biased. Finally, the loss-locking nut 12 is attached to additional security of the connection.
Die Fig. 4 zeigt einen einzelnen Anker 5, der einen Abschnitt 6 aus BSt 500S zur Verankerung im Beton und einen Gewindeabschnitt 8, 8' - entweder mit Feuerverzinkung oder aus nichtrostendem Stahl - zum Aufschrauben der Muttern 1 1 , 12 umfasst. Der Abschnitt 6 ist zumindest über einen Teil seiner Längserstreckung als Rippenstahl ausgeführt, um einen möglichst guten Formschluss mit dem Beton oder Kleber zu erreichen. Fig. 4 shows a single anchor 5, which comprises a section 6 of BSt 500S for anchoring in concrete and a threaded portion 8, 8 '- either hot dip galvanizing or stainless steel - for screwing the nuts 1 1, 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.
In Fig. 5 ist die Ausgleichsvorrichtung 9, 10 im Schnitt dargestellt, wobei die Ausgleichsvorrichtung 9, 10 eine Kegelpfanne 9 und eine darauf gelagerte Kugelscheibe 10 umfasst. Diese Bauteile sind bezüglich ihrer Form in DIN 6319 festgelegt. In der Darstellung ist durch die Ausgleichsvorrichtung 9, 10 der Gewindebolzen 8 geführt, dessen Längsachse LA2 um den Winkel α geneigt zur Systemachse verläuft. Auf die mit dem Pfosten 3 in Fig. 1 , 2 und 3 ausgerichtete Fußplatte 4 wird die Kegelpfanne 9 aufgelegt, deren Achse LA1 parallel zur Systemachse des Pfostens verläuft. Um die Neigung des Gewindeabschnitts 8 auszugleichen, ist die Kugelscheibe 10 auf der Kegelpfanne 9 verschwenkt, so dass die Längsachse LA2 der Kugelscheibe identisch mit der Längsachse LA1 des Gewindeabschnitts 8 des Ankers ist. Durch die verschwenkte Kugelscheibe 9 wird eine parallel zur Spannfläche der Sechskantmutter 1 1 verlaufende Krafteinleitungsfläche bereitgestellt, so dass die Lastaufnahme genau in Längsrichtung der Anker 5 des Einbauelementes gewährleistet ist. Der Winkel zwischen den Längsachsen LA1 und LA2 ist mit α bezeichnet. Bezugszeichenliste In Fig. 5, the balancing device 9, 10 is shown in section, wherein the compensating 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. In the illustration, the threaded bolt 8 is guided by the compensating device 9, 10, whose longitudinal axis LA2 is inclined by the angle α to the system axis. On the aligned with the post 3 in Fig. 1, 2 and 3 base plate 4, the conical socket 9 is placed, whose axis LA1 runs parallel to the system axis of the post. To compensate for the inclination of the threaded portion 8, 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 running parallel to the clamping surface of the hexagonal nut 1 1 is provided, so that the load bearing is ensured exactly in the longitudinal direction of the armature 5 of the installation element. The angle between the longitudinal axes LA1 and LA2 is denoted by α. LIST OF REFERENCE NUMBERS
1 Betonbauwerk / -körper 1 concrete structure / body
2 Einbauelement - Querverbindungsstäbe 3 Pfosten  2 built-in element - cross connection bars 3 posts
4 Fußplatte  4 foot plate
5 Anker  5 anchors
6 Verankerung Rippenstahl (BSt 500S) 7 Gewindeabschnitt - hier: Innengewinde 8 Gewindeabschnitt / -bolzen, verzinkt 8' Gewindeabschnitt / -bolzen, nichtrostender  6 Anchoring ribbed steel (BSt 500S) 7 Thread section - here: female thread 8 threaded section / bolt, galvanized 8 'threaded section / bolt, stainless
Stahl  stole
9 Kegelpfanne  9 conical pan
10 Kugelscheibe  10 spherical disc
1 1 Sechskantmutter (verzinkt, hochfester Stahl, werkseitig vorgeschmiert)  1 1 hexagon nut (galvanized, high-strength steel, factory pre-lubricated)
12 Verlier-Sicherungsmutter  12 loser lock nut
13 Vergussmasse-Schicht  13 potting compound layer
14 Zentrier- / Abstandhalter  14 centering / spacer
15 Bitumendickbeschichtung  15 bitumen thick coating

Claims

TITEL Pfostenverankerung System Züblin auf Ingenieurbauwerken mit Kugelscheiben- Kegelpfannensystem ANSPRÜCHE TITLE Post anchoring System Züblin on engineering structures with spherical disc cone system CLAIMS
1 . Befestigung der Pfosten (3) von Schutzwänden auf Betonbauwerken (1 ) oder Fundamenten, die folgende Merkmale aufweist: 1 . Fastening the posts (3) of protective walls on concrete structures (1) or foundations, having the following features:
im Betonkörper (1 ) ist mindestens ein Ankerelement (5) vorgesehen, das entweder eingegossen, eingeklebt oder durchgeankert ist und an dem eine Fußplatte (4) des Pfostens (3) befestigt ist  in the concrete body (1) at least one anchor element (5) is provided which is either cast, glued or durchge anchored and to which a foot plate (4) of the post (3) is attached
das Ankerelement (5) leitet die Last aus den Einwirkungen auf die Schutzwand in das Bauwerk (1 ) ein, wobei durch die Fußplatte (4) Gewindebolzen (8, 8') hindurchgeführt sind, welche mit dem Ankerelement (5) verbunden sind und die mittels eines Kegelpfannen-Kugelscheiben- Systems (9, 10) und einer Mutter (1 1 ) die Kraft zentrisch in das Verankerungselement (5) leiten  the anchor element (5) introduces the load from the effects on the protective wall into the structure (1), threaded bolts (8, 8 ') being passed through the base plate (4), which are connected to the anchor element (5) and the by means of a conical cup-spherical disk system (9, 10) and a nut (1 1) centrically guide the force in the anchoring element (5)
die Verbindung ist mit einer definierten und hinsichtlich der - während der Lebensdauer des Bauwerkes - auftretenden Einwirkungen ermittelten Vorspannkraft festgelegt und mit einer Verlier-Sicherungsmutter (12) zusätzlich gesichert  the connection is determined with a defined and with respect to the - occurring during the life of the building - occurring effects biasing force and additionally secured with a loss-lock nut (12)
der freie Spannweg am Gewindebolzen (8, 8') ist mindestens zwischen Bolzen (8) und Vergussmasse (13) mit einer viskoelastischen Beschich- tung (15) zur Verhinderung des Kraftschlusses umgeben, damit die Dehnung nicht behindert ist the free tensioning path on the threaded bolt (8, 8 ') is surrounded at least between the bolt (8) and potting compound (13) with a viscoelastic coating (15) to prevent adhesion, so that the expansion is not hindered
2. Vorrichtung nach den Anspruch 1 , 2. Device according to claim 1,
dadurch gekennzeichnet, dass das Material zur Beschichtung (15) ein Bitumen ist, das die Eigenschaft aufweist, über die Lebensdauer des Bauwerkes Zink und nichtrostenden Stahl nicht anzugreifen darüber hinaus dem Korrosionsschutz dient.  characterized in that the material for coating (15) is a bitumen, which has the property of not attacking the life of the building zinc and stainless steel beyond the corrosion protection.
3. Vorrichtung nach mindestens einem der Ansprüche 1 und 2, 3. Device according to at least one of claims 1 and 2,
dadurch gekennzeichnet, dass für die Gewindebolzen (8) ein verzinkter, hochfester Stahl verwendet wird, dessen Festigkeit unter dem der verzinkten Sechskantmutter (1 1 ) liegt, um die Empfindlichkeit der Zugglieder gegenüber der Spannungsrisskorrosion zu reduzieren.  characterized in that a galvanized, high strength steel is used for the threaded bolt (8) whose strength is below that of the galvanized hex nut (1 1) to reduce the sensitivity of the tension members against stress corrosion cracking.
4. Vorrichtung nach mindestens einem der Ansprüche 1 bis 3, 4. Device according to at least one of claims 1 to 3,
dadurch gekennzeichnet, dass der freie Spannweg im Kern des Betonbauteiles (1 ) innerhalb eines Hüllrohres verläuft, und dass der Spalt zwischen Hüllrohr und Bolzen (8) mit einem viskoelastischen Material zur Verhinderung des Kraftschlusses zwischen Bolzen (8) und Betonkörper (1 ) verfüllt ist, wodurch eine Dehnung des Bolzens (8) nicht behindert ist.  characterized in that the free clamping path in the core of the concrete component (1) extends within a cladding tube, and that the gap between the cladding tube and bolt (8) with a viscoelastic material to prevent the frictional connection between the bolt (8) and concrete body (1) is filled , whereby an extension of the bolt (8) is not hindered.
5. Vorrichtung nach mindestens einem der Ansprüche 1 bis 4, 5. Device according to at least one of claims 1 to 4,
dadurch gekennzeichnet, dass das Material zur Verfüllung des Hüllrohres ein Fett ist.  characterized in that the material for filling the cladding tube is a fat.
6. Vorrichtung nach mindestens einem der Ansprüche 1 bis 5, 6. Device according to at least one of claims 1 to 5,
dadurch gekennzeichnet, dass im Falle der Verwendung von verzinkten Bolzen (8) die Bitumendickbeschichtung (15) aus Gründen des Korrosionsschutzes bis unter das Ausgleichselement (9, 10) geführt ist. characterized in that in the case of the use of galvanized bolts (8) the Bitumendickbeschichtung (15) for reasons of corrosion protection to below the compensating element (9, 10) is guided.
7. Vorrichtung nach mindestens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass im Falle der Verwendung von Bolzen (8') aus nichtrostendem Stahl die Bitumendickbeschichtung (15) nur im Bereich der Mörtelschicht (13) angebracht ist. 7. The device according to at least one of claims 1 to 5, characterized in that in the case of using bolts (8 ') made of stainless steel Bitumendickbeschichtung (15) only in the region of the mortar layer (13) is mounted.
EP10801120.6A 2009-12-01 2010-11-09 Züblin post anchoring system on engineering structures having a spherical washer/conical seat system Not-in-force EP2507450B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009016293U DE202009016293U1 (en) 2009-12-01 2009-12-01 Post anchoring system ZÜBLIN on engineering structures with spherical washers / cone socket system
PCT/DE2010/075126 WO2011066827A2 (en) 2009-12-01 2010-11-09 Züblin post anchoring system on engineering structures having a spherical washer/conical seat system

Publications (2)

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

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EP10801120.6A Not-in-force EP2507450B1 (en) 2009-12-01 2010-11-09 Züblin post anchoring system on engineering structures having a spherical washer/conical seat system

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EP (1) EP2507450B1 (en)
DE (2) DE202009016293U1 (en)
WO (1) WO2011066827A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014194951A1 (en) * 2013-06-06 2014-12-11 Ed. Züblin Ag Particularly low-maintenance züblin system post anchoring on engineering structures

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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 (en) * 1992-09-11 1996-02-05 Moel Beton En Waterbouw B V De Method and assembly for attaching a frame part to a pile.
DE29507013U1 (en) * 1995-04-26 1996-01-25 Jürgens, Walter, Dr.-Ing., 52072 Aachen Straightening element
US7101135B2 (en) * 2002-07-19 2006-09-05 Bell Helicopter Textron, Inc. Self-aligning nut plate
DE202007003407U1 (en) * 2006-09-22 2007-06-06 Ed. Züblin Ag Construction for subsequent anchorage of noise barrier pillars on bridge, enables foot-plates of pillars and counter-plates to be pulled up to end-caps for pre-stressing
DE202007002395U1 (en) * 2007-02-17 2007-05-10 Ed. Züblin Ag Fastening of pillar of noise protection wall preferably beside railroad line, on cement foundation by means of bolt connection, has wedge shaped safety washer, provided as intermediate layer between base plate of pillar and nut or bolt head

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011066827A2 *

Also Published As

Publication number Publication date
DE202009016293U1 (en) 2010-03-25
EP2507450B1 (en) 2016-04-20
DE112010004622A5 (en) 2013-04-11
WO2011066827A2 (en) 2011-06-09
WO2011066827A3 (en) 2013-05-10

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