EP1045087B1 - Corrosion protected suspension point - Google Patents
Corrosion protected suspension point Download PDFInfo
- Publication number
- EP1045087B1 EP1045087B1 EP00107937A EP00107937A EP1045087B1 EP 1045087 B1 EP1045087 B1 EP 1045087B1 EP 00107937 A EP00107937 A EP 00107937A EP 00107937 A EP00107937 A EP 00107937A EP 1045087 B1 EP1045087 B1 EP 1045087B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- anchoring element
- plug
- suspension point
- solidium
- anchoring
- 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.)
- Expired - Lifetime
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 25
- 230000007797 corrosion Effects 0.000 title description 11
- 238000005260 corrosion Methods 0.000 title description 11
- 238000004873 anchoring Methods 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000010953 base metal Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009415 formwork Methods 0.000 description 10
- 238000007789 sealing Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000009418 renovation Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2201/00—Type of materials to be protected by cathodic protection
- C23F2201/02—Concrete, e.g. reinforced
Definitions
- the invention relates to a suspension point in a building with the features of the preamble of claim 1 and a method for producing such Suspension point in a building.
- Suspension points are used to anchor formwork and Scaffolding on structures.
- a special application lies here when attaching cornice formwork that before especially in bridge construction both during the construction phase and a later renovation phase of the building be used.
- suspension points are made by a Anchoring element is poured into the concrete body. So that between the anchoring element and the Concrete end surface forms an access opening during the casting of the anchoring element a connection to the Formwork skin made, which after stripping from Anchoring element can be removed and an access opening of the concrete outer shell to the anchoring element.
- the simplest variant chosen is the pouring of one Anchoring element made of plastic, so that corrosion of the anchoring element can be safely excluded.
- this method significantly reduces the Load capacity of the anchoring element, so that many Anchoring elements at a short distance from each other must be cast in to a given load to be able to ensure. This is with an increased Material and labor input combined. It also ages Plastic and becomes brittle over time, so that already after a few years there is no longer a guaranteed load capacity can be. Hence the use of the existing one Suspension points at one may only be after many Years of renovation required. Because of these disadvantages, plastic is usually in concrete undesirable and often already in the context of the building tender prohibited.
- Another variant in the prior art is pouring an anchoring element made of steel and the additional Providing a sealing plug made of plastic, which the Access opening from the concrete outer shell to the Anchoring element closes.
- DE-OS 33 38 762 describes an anchoring construction in concrete with a stainless steel threaded sleeve on the concrete side with mild steel by welding or Threaded connection is connected, the mild steel for Introduces the forces into the concrete body.
- Page 99 becomes a method of making one
- the invention has for its object a suspension point as well as an economical process for producing a Propose hanging point that is safe Ensure protection against corrosion.
- the procedure for Production of a suspension point according to the invention comprises method steps set out in claim 7.
- the invention is based on the idea of the suspension point from a pairing of an anchoring element and one Form plug, the plug in close proximity to the anchoring element or in contact to the anchoring element and acts as a sacrificial anode.
- the plug must be made of a less noble metal be made as the anchoring element.
- Metals that can be easily oxidized, are considered base metals designated, i.e. the higher the tendency is in the To change the ion state, the less noble a metal is.
- a nobler metal Anchoring element and that of a base metal manufactured plugs together in that a electrochemical corrosion element that always arises occurs when two different points of contact Metals an electrolytic solution.
- the base metal is destroyed by being oxidized.
- the Oxidation and destruction of the plug accepted to protect the nobler metal of the anchoring element.
- the Sealing plug thus acts as a sacrificial anode, the Oxidation and destruction targeted to protect a nobler Metal is brought about.
- the Suspension point created by first attaching a nail cone is fastened to a formlining, the anchoring element the nail cone is pushed on and then the Structure is concreted. After removing the nail cone is the cornice formwork with a screw-in cone on Fixed structure. After this actual use of the The screw-in cone is removed and a sacrificial anode in the form of a sealing plug as Corrosion protection used.
- anchoring part known anchoring part can be used.
- This measure is therefore from Meaning that already existing and proven geometries can be used.
- the main advantage of this Measure is to have suspension points in structures that currently provided with a plastic plug by inserting one that acts as a sacrificial anode Retrofit metal plug.
- the plug is made made of a hot-dip galvanized material, in particular Forged steel or cast iron.
- a hot-dip galvanized material in particular Forged steel or cast iron.
- Fig. 1 a section through a structure 12 made of concrete is shown.
- An anchoring element 14 is in the structure 12 poured, which in the present case as already in the Technology used, so-called cornice anchor of the applicant is trained.
- the cornice anchor has a cylindrical one Shaft 16, which is fixed on a metal plate 18, the Dimensions exceed the outer radius of the shaft 18 and thus firmly fix the anchoring element 14 in the concrete 12.
- the struts 20 also shown in FIG. 1 increase the strength of the anchoring element. How out Fig. 1 can be seen, the anchoring element is so deep poured into the concrete that a concrete cover of about 4 cm between the anchoring element 14 and the End surface 22 of the concrete is made. In the area of this Cover is thus an opening 24 formed by the Outer surface 22 of the building forth access to Anchoring element 14 guaranteed.
- a plug 30 is also shown, which in essentially of a threaded shaft 32 with a There is an external thread and a head 34, the one Recess 36 for engaging a conventional one Square wrench.
- the head 34 has a dimension so that it is straight the opening 24 in the concrete body 12 fills and also not protrudes beyond the end face 22.
- the plug 30 with a longer head 34 desired this can of course also be designed so that it over the end surface 22nd protrudes outwards and, for example, instead of the groove 36 is provided with suitable external dimensions to with a appropriately shaped tools, e.g. Wrench, to come into positive contact.
- the plug 30 is preferably made from a cheaply available one Material such as forged steel or cast iron is manufactured and subsequently hot-dip galvanized to compare to that also made from forged steel or cast iron Anchoring element 14 to represent the base metal.
- Zinc is a higher negative compared to iron Zinc is the less noble metal compared to conventional iron as a sacrificial anode can serve.
Abstract
Description
Die Erfindung betrifft eine Aufhängestelle in einem Baukörper
mit den Merkmalen des Oberbegriffs des Patentanspruchs 1
sowie ein Verfahren zur Herstellung einer derartigen
Aufhängestelle in einem Baukörper.The invention relates to a suspension point in a building
with the features of the preamble of
Aufhängestellen dienen zur Verankerung von Schalungen und Gerüsten an Baukörpern. Eine besondere Anwendung liegt hierbei bei der Anbringung von Gesimsschalungen, die vor allem im Brückenbau sowohl während der Bauphase wie auch einer später erfolgenden Sanierungsphase des Baukörpers eingesetzt werden.Suspension points are used to anchor formwork and Scaffolding on structures. A special application lies here when attaching cornice formwork that before especially in bridge construction both during the construction phase and a later renovation phase of the building be used.
Da zwischen der eigentlichen Bauphase und der Sanierungsphase sehr lange Zeiträume bestehen, sollten die Aufhängestellen im Baukörper korrosionsgeschützt sein, damit diese wiederverwendet werden können.Because between the actual construction phase and the renovation phase the suspension points in the Buildings must be protected against corrosion, so this can be reused.
In der Technik werden Aufhängestellen hergestellt, indem ein Verankerungselement in den Betonkörper eingegossen wird. Damit sich zwischen dem Verankerungselement und der Betonabschlußfläche eine Zugangsöffnung bildet, wird während des Eingießens des Verankerungselements eine Verbindung zur Schalhaut hergestellt, die sich nach dem Ausschalen vom Verankerungselement abnehmen läßt und eine Zugangsöffnung von der Betonaußenschale zum Verankerungselement sicherstellt. In the art, suspension points are made by a Anchoring element is poured into the concrete body. So that between the anchoring element and the Concrete end surface forms an access opening during the casting of the anchoring element a connection to the Formwork skin made, which after stripping from Anchoring element can be removed and an access opening of the concrete outer shell to the anchoring element.
Durch die notwendigerweise vorgesehene Zugangsöffnung ist das Verankerungselement den Witterungseinflüssen ausgesetzt, die eine Korrosion eines Verankerungselements aus Metall auslösen.This is due to the access opening that is necessarily provided Anchoring element exposed to the weather, the corrosion of an anchoring element made of metal trigger.
In der Technik wurden verschiedene Vorgehensweisen gewählt, um die Aufhängestelle vor Korrosion zu schützen.Various approaches have been chosen in technology, to protect the hanging point from corrosion.
Die einfachste gewählte Variante (vgl. z.B. CH 684 648A) ist das Eingießen eines Verankerungselements aus Kunststoff, so daß eine Korrosion des Verankerungselements sicher ausgeschlossen werden kann. Diese Methode verringert jedoch in erheblichem Maße die Tragfähigkeit des Verankerungselements, so daß viele Verankerungselemente in geringem Abstand zueinander eingegossen werden müssen, um eine vorgegebene Traglast sicherstellen zu können. Dies ist mit einem erhöhten Material- und Arbeitseinsatz verbunden. Darüber hinaus altert Kunststoff und wird im Laufe der Zeit spröde, so daß bereits nach wenigen Jahren keine Tragkraftsgarantie mehr gegeben werden kann. Daher ist die Verwendung der vorhandenen Aufhängestellen bei einer möglicherweise erst nach vielen Jahren erforderlichen Sanierungsmaßnahme nicht gewährleistet. Aus diesen Nachteilen heraus ist Kunststoff im Beton meist unerwünscht und oft bereits im Rahmen der Bauausschreibung untersagt.The simplest variant chosen (see e.g. CH 684 648A) is the pouring of one Anchoring element made of plastic, so that corrosion of the anchoring element can be safely excluded. However, this method significantly reduces the Load capacity of the anchoring element, so that many Anchoring elements at a short distance from each other must be cast in to a given load to be able to ensure. This is with an increased Material and labor input combined. It also ages Plastic and becomes brittle over time, so that already after a few years there is no longer a guaranteed load capacity can be. Hence the use of the existing one Suspension points at one may only be after many Years of renovation required. Because of these disadvantages, plastic is usually in concrete undesirable and often already in the context of the building tender prohibited.
Eine weitere Variante im Stand der Technik ist das Eingießen eines Verankerungselements aus Stahl und das zusätzliche Vorsehen eines Verschlußstopfens aus Kunststoff, der die Zugangsöffnung von der Betonaußenschale zum Verankerungselement verschließt. Durch das Einsetzen eines Verschlußstopfens aus Kunststoff läßt sich jedoch das Eindringen von Feuchtigkeit nicht sicher verhindern, insbesondere nach längeren Zeiträumen, nach denen die Kunststoffstopfen gealtert und spröde geworden sind, so daß auch hier Korrosion auftreten kann, was wiederum mit einer Tragkraftsverminderung oder aber einer völligen Zerstörung des Gewindes in dem Verankerungselement verbunden ist. Die Aufhängestelle kann nicht mehr benutzt werden.Another variant in the prior art is pouring an anchoring element made of steel and the additional Providing a sealing plug made of plastic, which the Access opening from the concrete outer shell to the Anchoring element closes. By inserting one Sealing plug made of plastic can, however Do not safely prevent moisture ingress, especially after long periods after which the Plastic plugs have aged and become brittle, so that Corrosion can also occur here, which in turn results in a Reduced load capacity or complete destruction the thread in the anchoring element is connected. The The suspension point can no longer be used.
Es wurde vorgeschlagen, ein Verankerungselement aus einem verzinkten Stahl einzusetzen und zusätzlich einen Verschlußstopfen aus Kunststoff vorzusehen. Dies scheitert allerdings an den technischen Schwierigkeiten, die mit einer Verzinkung des üblicherweise mit einem Innengewinde versehenen Verankerungsteils verbunden ist. Aufgrund dieser technischen Schwierigkeiten ist eine Verzinkung am Innengewindebereich nicht wirtschaftlich herstellbar.It has been proposed to create an anchoring element from a use galvanized steel and one Provide sealing plugs made of plastic. This fails however, due to the technical difficulties associated with a Usually galvanized with an internal thread provided anchoring part is connected. Based on these technical difficulties is a galvanizing on Internal thread area cannot be produced economically.
Ein weiterer Vorschlag zur Schaffung einer korrosionsgeschützten Aufhängestelle schließlich betrifft das Vorsehen eines Verankerungselementes aus nicht rostendem Edelstahl. Diese Lösungen sind allerdings mit sehr hohen Materialkosten verbunden und bereiten darüber hinaus dahingehend Schwierigkeiten, daß hochwertige, nicht rostende Edelstähle zur Spannungsrißkorrosion oder Kontaktkorrosion neigen.Another proposal to create one Finally, this concerns the corrosion-protected hanging point Providing an anchoring element made of rustproof Stainless steel. However, these solutions are very high Material costs connected and also prepare difficulties in that high quality, rustproof Stainless steels for stress corrosion cracking or contact corrosion tend.
Die DE-OS 33 38 762 beschreibt eine Verankerungskonstruktion im Beton mit einer Gewindehülse aus Edelstahl, die betonseitig mit Baustahl durch eine Schweiß- oder Gewindeverbindung verbunden ist, wobei der Baustahl zur Einleitung der Kräfte in den Betonkörper dient.DE-OS 33 38 762 describes an anchoring construction in concrete with a stainless steel threaded sleeve on the concrete side with mild steel by welding or Threaded connection is connected, the mild steel for Introduces the forces into the concrete body.
Aus der US-Schrift "ENGINEERING NEWS-RECORD", August 1956, Seite 99 wird ein Verfahren zum Herstellen einerFrom the US script "ENGINEERING NEWS-RECORD", August 1956, Page 99 becomes a method of making one
Aufhängestelle beschrieben, bei dem ein Gewindeeinsatz über eine Schraubbefestigung an einer Schalhaut befestigt wird und das Verankerungselement auf die Gewindebefestigung aufgeschraubt wird. Nach dem Betonieren des Baukörpers und dem Entfernen der Schalhaut kann die Gewindebefestigung aus dem Einsatz herausgeschraubt werden. Suspension point described, in which a thread insert over a screw fastening is attached to a formwork skin and the anchoring element on the threaded fastener is screwed on. After concreting the structure and Removing the formlining can remove the thread unscrewed from the insert.
Der Erfindung liegt die Aufgabe zugrunde, eine Aufhängestelle sowie ein wirtschaftliches Verfahren zur Herstellung einer Aufhängestelle vorzuschlagen, die einen sicheren Korrosionsschutz gewährleisten.The invention has for its object a suspension point as well as an economical process for producing a Propose hanging point that is safe Ensure protection against corrosion.
Diese Aufgabe wird durch eine Aufhängestelle mit den Merkmalen des Anspruchs 5 gelöst. Das Verfahren zur Herstellung einer erfindungsgemäßen Aufhängestelle umfaßt die im Anspruch 7 dargelegten Verfahrensschritte.This task is carried out by a suspension point with the Features of claim 5 solved. The procedure for Production of a suspension point according to the invention comprises method steps set out in claim 7.
Der Erfindung liegt der Gedanke zugrunde, die Aufhängestelle aus einer Paarung aus einem Verankerungselement und einem Verschlußstopfen auszubilden, wobei der Stopfen sich in unmittelbarer Nähe zum Verankerungselement oder in Kontakt zum Verankerungselement befindet und als Opferanode wirkt.The invention is based on the idea of the suspension point from a pairing of an anchoring element and one Form plug, the plug in close proximity to the anchoring element or in contact to the anchoring element and acts as a sacrificial anode.
Mit anderen Worten muß der Stopfen aus einem unedleren Metall als das Verankerungselement hergestellt sein. Metalle, die sich leicht oxidieren lassen, werden als unedle Metalle bezeichnet, d.h. je höher die Tendenz ist, in den Ionenzustand überzugehen, desto unedler ist ein Metall.In other words, the plug must be made of a less noble metal be made as the anchoring element. Metals that can be easily oxidized, are considered base metals designated, i.e. the higher the tendency is in the To change the ion state, the less noble a metal is.
Wenn durch den Verschlußstopfen Nässe in die Aufhängestelle eindringt, wirkt das aus einem edleren Metall hergestellte Verankerungselement und der aus einem unedlen Metall hergestellte Stopfen dahingehend zusammen, daß ein elektrochemisches Korrosionselement entsteht, das immer dann auftritt, wenn an die Berührungsstelle zweier verschiedener Metalle eine Elektrolytlösung gelangt. Hierbei wird das unedlere Metall zerstört, indem es oxidiert wird. Im vorliegenden Fall, in dem die elektrochemische Korrosion des Verankerungselements verhindert werden soll, wird gezielt die Oxidation und Zerstörung des Stopfens in Kauf genommen, um das edlere Metall des Verankerungselementes zu schützen. Der Verschlußstopfen wirkt somit als eine Opferanode, deren Oxidation und Zerstörung gezielt zum Schutz eines edleren Metalles herbeigeführt wird.If moisture gets into the hanging point through the sealing plug penetrates, it looks made of a nobler metal Anchoring element and that of a base metal manufactured plugs together in that a electrochemical corrosion element that always arises occurs when two different points of contact Metals an electrolytic solution. Here is the base metal is destroyed by being oxidized. in the The present case, in which the electrochemical corrosion of the Anchoring element is to be prevented, the Oxidation and destruction of the plug accepted to protect the nobler metal of the anchoring element. The Sealing plug thus acts as a sacrificial anode, the Oxidation and destruction targeted to protect a nobler Metal is brought about.
Im Rahmen des erfindungsgemäßen Verfahrens wird die Aufhängestelle geschaffen, indem zunächst ein Nagelkonus an einer Schalhaut befestigt wird, das Verankerungselement auf den Nagelkonus aufgeschoben wird und anschließend der Baukörper betoniert wird. Nach dem Entfernen des Nagelkonus wird die Gesimsschalung mit einem Einschraubkonus am Baukörper befestigt. Nach dieser eigentlichen Verwendung der Aufhängestelle wird der Einschraubkonus wieder entfernt und eine Opferanode in Form eines Verschlußstopfens als Korrosionsschutz eingesetzt.In the context of the method according to the invention, the Suspension point created by first attaching a nail cone is fastened to a formlining, the anchoring element the nail cone is pushed on and then the Structure is concreted. After removing the nail cone is the cornice formwork with a screw-in cone on Fixed structure. After this actual use of the The screw-in cone is removed and a sacrificial anode in the form of a sealing plug as Corrosion protection used.
Bevorzugte Ausführungsformen der Erfindung sind durch die übrigen Ansprüche gekennzeichnet.Preferred embodiments of the invention are characterized by the other claims marked.
So kann vorzugsweise als Verankerungselement ein bereits bekanntes Verankerungsteil eingesetzt werden. Diese Maßnahme ist für neu herzustellende Aufhängestellen dahingehend von Bedeutung, daß bereits vorhandene und bewährte Geometrien eingesetzt werden können. Der wesentliche Vorteil dieser Maßnahme liegt darin, Aufhängestellen in Baukörpern, die derzeit mit einem Verschlußstopfen aus Kunststoff versehen sind, durch das Einsetzen eines als Opferanode wirkenden Metallstopfens umzurüsten.For example, one can preferably already be used as an anchoring element known anchoring part can be used. This measure is therefore from Meaning that already existing and proven geometries can be used. The main advantage of this Measure is to have suspension points in structures that currently provided with a plastic plug by inserting one that acts as a sacrificial anode Retrofit metal plug.
Vorzugsweise besteht im Montagezustand eine Gewindepaarung zwischen dem Verankerungselement und dem Stopfen. Hierdurch wird zum einen ein inniger Kontakt zwischen den beiden Metallen sichergestellt und zum anderen der Stopfen fest und somit unverlierbar in Kontakt mit dem Verankerungselement gehalten.In the assembled state, there is preferably a thread pairing between the anchoring element and the plug. hereby on the one hand there is an intimate contact between the two Metals secured and on the other hand the plug firmly and thus captive in contact with the anchoring element held.
Nach einer bevorzugten Ausführungsform besteht der Stopfen aus einem feuerverzinkten Material, insbesondere Schmiedestahl oder Gußeisen. Dies stellt eine insbesondere im Automobilbau bekannte Korrosionsschutzmaßnahme dar, wobei das Feuerverzinken sich insbesondere für einen mit einem Außengewinde versehenen Stopfen eignet.According to a preferred embodiment, the plug is made made of a hot-dip galvanized material, in particular Forged steel or cast iron. This represents a particular in Automotive construction known corrosion protection measure, which Hot dip galvanizing especially for one with one Male threaded plug is suitable.
Nachfolgend wird die Erfindung rein beispielhaft anhand der beigefügten Figuren beschrieben, in denen
- Fig. 1
- eine Schnittansicht durch einen Baukörper mit einem darin befestigten Verankerungselement sowie einen getrennt hiervon dargestellten Stopfen zeigt;
- Fig. 2
- eine Ansicht entsprechend Fig. 1 mit dem in das Verankerungselement eingeschraubten Stopfen zeigt; und
- Fig. 3 bis 5
- eine Abfolge wesentlicher Verfahrensschritte zur Herstellung einer erfindungsgemäßen Aufhängestelle zeigen.
- Fig. 1
- shows a sectional view through a structure with an anchoring element fastened therein and a plug shown separately therefrom;
- Fig. 2
- a view corresponding to Figure 1 with the plug screwed into the anchoring element. and
- 3 to 5
- show a sequence of essential process steps for producing a suspension point according to the invention.
In den nachfolgenden Figuren bezeichnen jeweils gleiche
Referenzziffern identische oder ähnliche Elemente. In Fig. 1
ist ein Schnitt durch einen Baukörper 12 aus Beton gezeigt.
In dem Baukörper 12 ist ein Verankerungselement 14
eingegossen, das im vorliegenden Fall als bereits in der
Technik eingesetzter, sogenannter Gesimsanker der Anmelderin
ausgebildet ist. Der Gesimsanker besitzt einen zylindrischen
Schaft 16, der auf einer Metallplatte 18 befestigt ist, deren
Abmessungen den Außenradius des Schafts 18 übersteigen und
somit das Verankerungselement 14 im Beton 12 fest fixieren.
Die in Fig. 1 ebenfalls ersichtlichen Verstrebungen 20
erhöhen die Festigkeit des Verankerungselements. Wie aus
Fig. 1 ersichtlich ist, ist das Verankerungselement so tief
in den Beton eingegossen, daß eine Betonüberdeckung von etwa
4 cm zwischen dem Verankerungselement 14 und der
Abschlußfläche 22 des Betons besteht. Im Bereich dieser
Überdeckung ist somit eine Öffnung 24 gebildet, die von der
Außenfläche 22 des Baukörpers her den Zugang zum
Verankerungselement 14 gewährleistet.In the following figures denote the same
Reference numbers are identical or similar elements. In Fig. 1
a section through a
In Fig. 1 ist zusätzlich ein Stopfen 30 dargestellt, der im
wesentlichen aus einem Gewindeschaft 32 mit einem
Außengewinde sowie einem Kopf 34 besteht, der eine
Vertiefung 36 zum Eingriff eines herkömmlichen
Vierkantschlüssels aufweist.In Fig. 1, a
Wie aus der Darstellung in Fig. 2 mit dem in das
Verankerungselement 14 eingeschraubten Stopfen 30 deutlich
wird, besitzt der Kopf 34 eine Abmessung, so daß er gerade
die Öffnung 24 im Betonkörper 12 ausfüllt und zudem nicht
über die Abschlußfläche 22 nach außen ragt. Wird allerdings
eine alternative Bauform für den Stopfen 30 mit einem
längeren Kopf 34 gewünscht, so kann dieser selbstverständlich
auch so gestaltet sein, daß er über die Abschlußfläche 22
nach außen vorsteht und beispielsweise anstelle der Nut 36
mit geeigneten Außenabmessungen versehen ist, um mit einem
entsprechend geformten Werkzeug, wie z.B. Schraubenschlüssel,
in einen formschlüssigen Kontakt zu treten.As shown in Fig. 2 with that in the
Der Stopfen 30 ist vorzugsweise aus einem billig verfügbaren
Material wie Schmiedestahl oder Gußeisen hergestellt und
anschließend feuerverzinkt worden, um im Vergleich zu dem
ebenfalls aus Schmiedestahl oder Gußeisen hergestellten
Verankerungselement 14 das unedlere Metall darzustellen. Da
Zink im Vergleich zu Eisen ein höheres negatives
Standardpotential besitzt, stellt Zink das unedlere Metall
dar, das im Vergleich zu herkömmlichem Eisen als Opferanode
dienen kann. The
Dringt somit nach dem vollständigen Einschrauben des
Stopfens 30 in das Verankerungselement 14 dennoch
Feuchtigkeit zwischen dem Kopf 34 und der Öffnung 24 in
Richtung des Verankerungselements 14 ein, so wird der
Stopfen 30, nicht aber das Verankerungselement 14 korrodiert,
so daß auch nach einem längeren Zeitraum die Aufhängestelle
wieder verwendbar ist, indem der Stopfen aus dem
Verankerungselement 14 herausgedreht wird und das
Innengewinde im Verankerungselement 14 zur Anbringung einer
Schalung oder eines Gerüstes verwendet werden kann.So penetrates after screwing the
Aus der Abfolge der Figuren 3 bis 5 soll das Verfahren zur Herstellung der erfindungsgemäßen Aufhängestelle verdeutlicht werden.From the sequence of Figures 3 to 5, the method for Manufacture of the suspension point according to the invention clarified become.
Vor dem Herstellen des Baukörpers markieren Schalplatten 40
die spätere Abschlußfläche 22. Da die Verankerungselemente 14
mit einer Betonüberdeckung 40 von ca. 4 cm in die
Betonelemente eingegossen werden sollen, wird zunächst ein
Nagelkonus 42 mit dem Hammer in das Verschalungselement
eingeschlagen. Der Nagelkonus besitzt hierzu einen Nagel 44,
der in die Schalplatte eindringt und den Nagelkonus an dem
Verschalungselement befestigt. Anschließend wird auf den
Nagelkonus das Verankerungselement 14 aufgeschoben, wobei der
Nagelkonus in das Innengewinde des Verankerungselementes
einrückt und dieses fixiert. Anschließend wird betoniert und
nach dem Ausschalen der Nagelkonus 42 vom Verankerungselement
entfernt, wie in Fig. 4 durch den Pfeil B angezeigt ist.
Daraufhin liegt die bereits in Fig. 1 dargestellte Anordnung
vor, wobei das Verankerungselement 14 nach dem Aushärten des
Betons entweder sofort für die Befestigung eines speziellen
Befestigungselementes verwendet werden kann, oder aber zum
Zwecke der Langzeitkonservierung und -stabilisierung durch
den als Opferanode wirkenden Stopfen (siehe Fig. 2)
verschlossen wird.Thereupon lies the arrangement already shown in FIG. 1
before, wherein the anchoring
Claims (7)
- Suspension point having a solidium (12) comprising:an anchoring element (14) made from metal attached in an opening of the solidium; anda plug (30) closing the opening (24) in the assembly state characterised in that the plug (30) consists of a base metal, is found in contact with the anchoring element (14) and acts as a sacrificial anode.
- Suspension point in a solidium according to claim 1, characterised in that the anchoring element (14) is made from steel.
- Suspension point in a solidium according to claim 1 or 2, characterised in that in the assembly state, a threaded pairing exists between the anchoring element (14) and the plug (30).
- Suspension point in a solidium according to one of the preceding claims, characterised in that the plug consists of zinc.
- Suspension point in a solidium according to one of claims 1 to 3, characterised in that the plug consists of a hot-galvanised material, in particular forged steel or cast iron.
- Process for producing a suspension point according to one of claims 1 to 5, comprising the steps:(a) attaching a nail cone (42) to a wall skin (40);(b) pushing the anchoring element (14) onto the nail cone (42);(c) concreting the solidium (12);(d) removing the nail cone (42); and(e) insertion of a sacrificial anode in the form of a closure plug (30).
- Process according to claim 6, characterised in that the insertion of a closure plug (30) is carried out by screwing the same into an internal thread of the anchoring element (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19917345A DE19917345C2 (en) | 1999-04-16 | 1999-04-16 | Corrosion-protected hanging point |
| DE19917345 | 1999-04-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1045087A1 EP1045087A1 (en) | 2000-10-18 |
| EP1045087B1 true EP1045087B1 (en) | 2004-11-03 |
Family
ID=7904871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00107937A Expired - Lifetime EP1045087B1 (en) | 1999-04-16 | 2000-04-14 | Corrosion protected suspension point |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1045087B1 (en) |
| AT (1) | ATE281577T1 (en) |
| DE (2) | DE19917345C2 (en) |
| ES (1) | ES2231065T3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4006267A1 (en) * | 2020-11-30 | 2022-06-01 | Georg Weidner | Concrete part transport tanker system |
| EP4273350A2 (en) | 2022-05-04 | 2023-11-08 | Georg Weidner | Assembly system with a stand foot and a wall spacer |
| EP4273349A1 (en) | 2022-05-04 | 2023-11-08 | Georg Weidner | Wall spacer with u-bracket |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10108229A1 (en) * | 2001-02-21 | 2002-09-19 | Sabine Blessenohl | Dowel fixture in structured parts made of hardening cast concrete involves dowel templet fixed to sheathing or mould so that dowel body with one-sided open cylindrical hollow space remaining in structural part has distance to sheathing |
| DE102007059125B4 (en) * | 2007-12-07 | 2009-10-22 | Doka Industrie Gmbh | anchoring element |
| DE102011006702A1 (en) * | 2011-04-04 | 2012-10-04 | Peri Gmbh | Mounting plug for mounting an anchor sleeve on a formwork |
| CN102518300B (en) * | 2011-12-15 | 2014-04-09 | 中国建筑第二工程局有限公司 | Embedded conical bearing joint type steel structural support and construction method thereof |
| DE102015008620A1 (en) | 2015-07-02 | 2017-01-05 | Gunnar Pöppe | Method for corrosion-protected closing of a workpiece and the closing part provided for this purpose |
| EP3414405B1 (en) * | 2016-02-11 | 2023-10-11 | Cetres Holdings, LLC | Concrete anchor |
| US10384085B1 (en) * | 2016-06-17 | 2019-08-20 | Climb Tech, Llc | Concrete anchor point and method for constructing same |
| CN107246076A (en) * | 2017-08-11 | 2017-10-13 | 中建安装工程有限公司 | Recyclable magnetic thread embedded parts for assembled architecture |
| CN109797664B (en) * | 2019-01-21 | 2020-10-16 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Large-span assembly type bridge modularized truss and assembling and folding method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819482A (en) * | 1981-07-28 | 1983-02-04 | Sumitomo Rubber Ind Ltd | Anticorrosive clamp |
| DE3338762A1 (en) * | 1983-10-26 | 1985-05-09 | Winfried Dipl.-Ing. 6365 Rosbach Schnabel | Anchoring of steel construction parts by screw connections in concrete |
| CH684648A5 (en) * | 1992-07-10 | 1994-11-15 | Giulio Albanese | Threaded sleeve for fastening structural elements provided with a tensioning bar designed in the form of a screw, and use of the same |
-
1999
- 1999-04-16 DE DE19917345A patent/DE19917345C2/en not_active Expired - Fee Related
-
2000
- 2000-04-14 AT AT00107937T patent/ATE281577T1/en not_active IP Right Cessation
- 2000-04-14 ES ES00107937T patent/ES2231065T3/en not_active Expired - Lifetime
- 2000-04-14 DE DE50008463T patent/DE50008463D1/en not_active Expired - Fee Related
- 2000-04-14 EP EP00107937A patent/EP1045087B1/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4006267A1 (en) * | 2020-11-30 | 2022-06-01 | Georg Weidner | Concrete part transport tanker system |
| EP4273350A2 (en) | 2022-05-04 | 2023-11-08 | Georg Weidner | Assembly system with a stand foot and a wall spacer |
| EP4273349A1 (en) | 2022-05-04 | 2023-11-08 | Georg Weidner | Wall spacer with u-bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19917345A1 (en) | 2000-10-26 |
| ES2231065T3 (en) | 2005-05-16 |
| DE50008463D1 (en) | 2004-12-09 |
| ATE281577T1 (en) | 2004-11-15 |
| EP1045087A1 (en) | 2000-10-18 |
| DE19917345C2 (en) | 2002-09-26 |
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