EP2703580A1 - Slipform device for producing concrete safety walls - Google Patents
Slipform device for producing concrete safety walls Download PDFInfo
- Publication number
- EP2703580A1 EP2703580A1 EP12182081.5A EP12182081A EP2703580A1 EP 2703580 A1 EP2703580 A1 EP 2703580A1 EP 12182081 A EP12182081 A EP 12182081A EP 2703580 A1 EP2703580 A1 EP 2703580A1
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- EP
- European Patent Office
- Prior art keywords
- vibrators
- sliding formwork
- guide elements
- hopper
- vibrator
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4833—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4886—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ for forming in a continuous operation kerbs, gutters, berms, safety kerbs, median barriers or like structures in situ, e.g. by slip-forming, by extrusion
- E01C19/4893—Apparatus designed for railless operation
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- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/34—Horizontally-travelling moulds for making walls blockwise or section-wise
Definitions
- the invention relates to a slip formwork device for producing concrete protection walls, comprising a slip form with walls for shaping the concrete protection walls, wherein the slip form a gate and an outlet opening, wherein at the inlet opening, a transition region is formed, which is associated with a hopper, and wherein at least in the transition region two vibrators are arranged at different heights.
- slipforming devices are used for the continuous production of concrete protective walls. They are also known as offset or inset formwork.
- the concrete protection walls are also called concrete sliding walls and serve as safety systems in traffic. Above all, they serve to protect the middle strip on motorways. As a result, the opposite lanes of the highways are to be separated from each other to avoid accidents.
- the sliding formwork devices known from the prior art have a filling funnel into which the concrete for the concrete protection walls is filled.
- the concrete is compacted by vibrators and introduced into the slipform form via an inlet opening.
- About the outlet opening of the hardened concrete can be spent from the Gleitschalungsform by the entire Gleitschalungsvoriques is viewed from the outlet opening forth in the direction of the inlet opening is pulled.
- a continuous production of a concrete protective wall is possible.
- the compaction of the concrete is usually carried out by vibrators, which are designed as vibrating needles.
- the vibrators generate vibrations that drive air trapped in the concrete out of the concrete.
- the concrete can be compressed.
- the air trapped in the concrete can However, not completely escape, so it can lead to air bubbles or voids.
- the invention is therefore based on the object, a sliding formwork device of the type mentioned in such a way and further, that a production of stable concrete protective walls is made possible, which have almost no defects.
- a Gleitschalungsvorutter of the aforementioned type is characterized in that the vibrators are arranged spaced apart in the horizontal direction.
- the vibrators are arranged unfavorably. It has been recognized that the vibrators interfere with each other. In the known sliding formwork devices, it is favored that a layer with a higher concrete density can come to lie above a layer with a low concrete density. The air in the lower layer can then no longer be expelled effectively because it can not penetrate the upper layer of higher concrete density. Finally, it has been recognized that a simultaneously horizontally and vertically staggered arrangement of the vibrators prevents a higher arranged vibrator disturbs a deeper vibrator in its operation.
- the staggered arrangement of the vibrators in the horizontal direction always creates channels or regions between the vibrators, by means of which the air inclusions can easily be expelled from superimposed layers of the concrete.
- the number of defects in the finished concrete protection wall is significantly reduced and their quality significantly increased.
- the vibrators could be arranged at different heights on an inclined plane having an inclination angle of 16 ° to 47 ° to the vertical. Surprisingly, it has been shown that a selection of Angle of inclination from this range allows to expel air bubbles from concrete particularly effectively.
- the angle of inclination can be selected from this range depending on the height of the concrete protection wall and the length of the slip form.
- the hopper could have in the transition region to Gleitschalungsform a slope at which the vibrators are arranged on an inclined plane.
- the vibrators can be mounted on the slope formed on the hopper.
- the slope may have an inclination angle of 16 ° to 47 ° to the vertical.
- the slipform mold can be mounted on the hopper in modular construction. It is conceivable that the slip form in the transition region to the hopper is also formed chamfered.
- the vibrators could be held by brackets, which are arranged on the hopper.
- the vibrators could be arranged on the brackets with the interposition of vibration buffers made of rubber. As a result, the vibrations generated by the vibrators are decoupled from the walls of the hopper.
- the hopper could comprise an armature introduction device which has guide elements within the hopper which extend in the direction of the inlet opening.
- the arrangement of guide elements within the hopper allows reliable guidance of the reinforcements.
- the guide elements cause the reinforcements to be positioned in the right place in the concrete protection wall. From the prior art, the problem is known that reinforcements within the hopper or Gleitschalungsform are not positioned by the vibrations of the vibrators in the correct position. Frequently, the reinforcements are not positioned far enough inside the concrete protection wall so that concrete can chip off the finished concrete protection wall.
- the guide elements could be formed as tubes. Tubes are ideal for guiding metal cables or metal bars. Pipes can be easily cut to a suitable length and positioned in the hopper.
- the guide elements in the hopper could be supported by vibration buffers.
- This specific embodiment makes it possible to vibrate the guide elements without causing the walls of the hopper to vibrate.
- At least one vibrator could be arranged structurally separated from the guide devices on an outer wall of the filling funnel in the amount of the guide elements.
- the entire hopper can be excited to vibrate.
- the concrete in the hopper can be transported down.
- a concrete jam can be avoided.
- no concrete can settle on the inside of the walls of the hopper.
- one or more vibrators are arranged on the walls of the filling funnel. The arrangement of a vibrator in height of the guide elements is therefore useful, since there is a particular danger in this area that forms a concrete jam.
- the introduction device could be assigned at least one vibrator, which is arranged within the hopper on the guide elements.
- the vibrator is cooled within the hopper by the inflowing concrete.
- the introduction device could be assigned at least one vibrator, which is arranged inside the filling funnel above the guide elements on an inner wall of the filling funnel.
- This specific embodiment advantageously effects cooling of the vibrator. Furthermore, the formation of a concrete jam is particularly effectively avoided in this critical area.
- the inflowing concrete is here distributed directly by the vibrations of the vibrator on both sides of the vibrator. As a result, no concrete can settle on or on the guide elements. It is also conceivable to attach two or more vibrators laterally next to the guide elements. In an arrangement of the vibrator within the hopper is also advantageous that the guide elements must not be stored with vibration buffers against the hopper.
- the structural design of the sliding formwork device can be simplified thereby.
- the vibrator may have a mounting portion and a croquttelabsacrificing, wherein the mounting portion is angled relative to the Hinttelabrough.
- the vibrator thus has a cranked design, whereby the Studttelabsacrificing the vibrator is arranged flat in the hopper and the vibrators act on a particularly large area of the hopper with vibrations and thereby expel air bubbles.
- cross members may be arranged in the hopper, to which the vibrators are attached.
- the cross members are preferably fastened by means of a welded connection to the side walls of the hopper.
- the vibrators are preferably mounted on vibrating buffer hanging on the cross members. This embodiment allows a particularly flexible and variable suspension of the vibrator in the hopper.
- the guide elements can be fixed to the cross members. As a result, the guide elements are stabilized within the hopper, so that the position of the reinforcement is ensured within the concrete protective wall.
- the vibrator frequency of the vibrators could be variably controlled or regulated.
- the vibration frequency can be adapted to the viscosity of the concrete used or to specific structural conditions.
- one or more vibrators are connected to a control system or a control system which communicates with sensors. The sensors can monitor whether the vibrators actually generate the vibrating frequency which they are to produce in the application.
- FIG. 1 shows a sectional view of a Gleitschalungsvorraum for the production of concrete protective walls.
- This comprises a sliding form 1 with walls 2 for shaping the concrete barriers.
- the slipform mold 1 has an inlet opening 3 and an outlet opening 4 and tapers in the direction of the outlet opening 4.
- a transition region 3a is formed, which is assigned to a hopper 5.
- three vibrators 6 are arranged at different heights. The vibrators 6 are also arranged horizontally offset and spaced from each other and form between them channels or areas, can escape through the air from different layers of the concrete.
- the vibrators 6 are attached to brackets 15. The attachment of the vibrator 6 to the brackets 15 takes place with the interposition of a respective vibration buffer 9.
- the vibrators 6 are designed as vibrating needles whose axis is slightly inclined to the vertical.
- the vibrators 6 are at different levels on an inclined plane having an angle of inclination ⁇ which is in the range of 16 ° to 47 °.
- the inclined plane includes the inclination angle ⁇ with the vertical.
- the hopper 5 has in the transition region 3a to the slip form 1, a slope on which the vibrators 6 are arranged on an inclined plane.
- the slope has an inclination angle ⁇ to the vertical, which is in the range of 16 ° to 47 °.
- the hopper 5 comprises an insertion device for reinforcements, which has 5 guide elements 8 within the hopper.
- the guide elements 8 extend in the direction of the inlet opening 3.
- the guide elements 8 are formed as tubes and serve to guide metal cables or metal bars to be received in the interior of a concrete protective wall.
- FIG. 2 shows a side view of a sliding formwork device, in which a vibrator 6 is arranged on an outer wall 11 of the hopper 5 at the level of the guide elements 8.
- the vibrator 6 is arranged structurally separated from the introduction device 7.
- the vibrator 6 prevents adhesion of concrete to the hopper. 5
- FIG. 3 shows a sectional view of a sliding formwork device with an insertion device 7, which is associated with a vibrator 6, which is disposed within the hopper 5 to the guide elements 8.
- a vibrator 6 is assigned to a single guide element 8 and to attached to this. The arrangement of the vibrator 6 in the interior of the hopper 5, the vibrator 6 can be cooled by flowing concrete.
- FIG. 4 shows a sectional view of a sliding formwork device, in which the insertion device 7 is associated with a vibrator 6, which is disposed within the hopper 5 above the guide elements 8 on an inner wall 12 of the hopper 5.
- the vibrator 6 is attached to a holder 15 with the interposition of a vibration buffer 9.
- FIG. 5 shows a sectional view of a sliding formwork device, in which 5 cross member 17 are arranged in the hopper.
- the cross member 17 are fixed to the side walls of the hopper 5.
- the vibrators 6 are mounted on vibration buffer 9.
- the vibrators 6 have a fastening portion 18 and a vibrating portion 19, wherein the fastening portion 18 and vibrating portion 19 are angled to each other.
- the vibrators 6 thus have a cranked design.
- FIG. 6 shows a sectional view of a sliding formwork device, in which the vibrators 6 sensors 16 are assigned, which monitor the vibrators 6.
- the vibrators 6 can be monitored and controlled by means of the sensors 16 such that the vibrators 6 can be controlled individually and independently of one another with regard to the vibration frequency.
- the sensor 16 is preferably designed to detect the vibration caused by the vibrators 6.
- the shaking frequency of all vibrators 6 can be variably controlled or regulated.
- FIG. 7 shows a sectional view of a Gleitschalungsvorraum according to the prior art.
- the slip-form device has vibrators 6, which are arranged one above the other in the transitional region 3a at different heights.
- the vibrators 6 are arranged almost vertically one above the other and therefore interfere with each other.
- the arrangement of the vibrators 6 according to the prior art leads to problems in the compression of the concrete in the hopper 5.
- the vibrations of the top vibrator 6 interfere with the operation of the vibrators arranged below him 6.
- the top vibrator 6 generates a layer of high concrete density, through which Air from air pockets often can not pass sufficiently below this position.
- the FIGS. 1 to 6 show a staggered arrangement of the vibrators on an inclined plane.
- the vibrators 6 are arranged such that they are arranged one above the other like a step following a slope.
- the vibrations of the uppermost vibrator 6 do not disturb the operation of the vibrators 6 arranged below it.
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Die Erfindung betrifft eine Gleitschalungsvorrichtung zur Herstellung von Betonschutzwänden, umfassend eine Gleitschalungsform mit Wänden zur Formgebung der Betonschutzwände, wobei die Gleitschalungsform eine Eintrittsöffnung und eine Austrittsöffnung aufweist, wobei an der Eintrittsöffnung ein Übergangsbereich ausgebildet ist, dem ein Einfülltrichter zugeordnet ist, und wobei im Übergangsbereich zumindest zwei Rüttler in unterschiedlichen Höhen angeordnet sind.The invention relates to a slip formwork device for producing concrete protection walls, comprising a slip form with walls for shaping the concrete protection walls, wherein the slip form a gate and an outlet opening, wherein at the inlet opening, a transition region is formed, which is associated with a hopper, and wherein at least in the transition region two vibrators are arranged at different heights.
Derartige Gleitschalungsvorrichtungen werden zur kontinuierlichen Fertigung von Betonschutzwänden verwendet. Sie sind auch unter der Bezeichnung Offset- oder Insetschalungen bekannt.Such slipforming devices are used for the continuous production of concrete protective walls. They are also known as offset or inset formwork.
Die Betonschutzwände werden auch Betongleitwände genannt und dienen als Sicherheitssysteme im Straßenverkehr. Sie dienen vor allem zur Absicherung des Mittelstreifens auf Autobahnen. Hierdurch sollen entgegengesetzte Fahrbahnen der Autobahnen voneinander getrennt werden, um Unfälle zu vermeiden.The concrete protection walls are also called concrete sliding walls and serve as safety systems in traffic. Above all, they serve to protect the middle strip on motorways. As a result, the opposite lanes of the highways are to be separated from each other to avoid accidents.
Die aus dem Stand der Technik bekannten Gleitschalungsvorrichtungen verfügen über einen Einfülltrichter, in welchen der Beton für die Betonschutzwände eingefüllt wird. Durch Rüttler wird der Beton verdichtet und über eine Eintrittsöffnung in die Gleitschalungsform eingeführt. Über die Austrittsöffnung kann der erhärtete Beton aus der Gleitschalungsform verbracht werden, indem die gesamte Gleitschalungsvorrichtung von der Austrittsöffnung her betrachtet in Richtung der Eintrittsöffnung gezogen wird. Hierdurch ist eine kontinuierliche Fertigung einer Betonschutzwand möglich.The sliding formwork devices known from the prior art have a filling funnel into which the concrete for the concrete protection walls is filled. The concrete is compacted by vibrators and introduced into the slipform form via an inlet opening. About the outlet opening of the hardened concrete can be spent from the Gleitschalungsform by the entire Gleitschalungsvorrichtung is viewed from the outlet opening forth in the direction of the inlet opening is pulled. As a result, a continuous production of a concrete protective wall is possible.
Die Verdichtung des Betons erfolgt üblicherweise durch Rüttler, die als Vibriernadeln ausgestaltet sind. Die Rüttler erzeugen Vibrationen, durch die im Beton eingeschlossene Luft aus dem Beton ausgetrieben wird. Durch diese Maßnahme kann der Beton komprimiert werden. Häufig kann die im Beton eingeschlossene Luft jedoch nicht vollständig entweichen, sodass es zu Lufteinschlüssen oder Lunkern kommen kann. Diese mindern die Stabilität und Qualität der Betonschutzwand. Insbesondere bei Verwendung von Gleitschalungsvorrichtungen, bei welchen die Rüttler übereinander angeordnet sind, können die vorgenannten Probleme auftreten.The compaction of the concrete is usually carried out by vibrators, which are designed as vibrating needles. The vibrators generate vibrations that drive air trapped in the concrete out of the concrete. By this measure, the concrete can be compressed. Often the air trapped in the concrete can However, not completely escape, so it can lead to air bubbles or voids. These reduce the stability and quality of the concrete protection wall. In particular, when using Gleitschalungsvorrichtungen in which the vibrators are arranged one above the other, the aforementioned problems can occur.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Gleitschalungsvorrichtung der eingangs genannten Art derart auszugestalten und weiterzubilden, dass eine Herstellung von stabilen Betonschutzwänden ermöglicht ist, welche nahezu keine Fehlstellen aufweisen.The invention is therefore based on the object, a sliding formwork device of the type mentioned in such a way and further, that a production of stable concrete protective walls is made possible, which have almost no defects.
Diese Aufgabe wird mit den Merkmalen von Anspruch 1 gelöst. Auf vorteilhafte Ausgestaltungen nehmen die Unteransprüche Bezug.This object is achieved with the features of
Danach ist eine Gleitschalungsvorrichtung der eingangs genannten Art dadurch gekennzeichnet, dass die Rüttler in horizontaler Richtung beabstandet voneinander angeordnet sind.Thereafter, a Gleitschalungsvorrichtung of the aforementioned type is characterized in that the vibrators are arranged spaced apart in the horizontal direction.
Erfindungsgemäß ist zunächst erkannt worden, dass bei den bekannten Gleitschalungsvorrichtungen die Rüttler unvorteilhaft angeordnet sind. Darauf ist erkannt worden, dass sich die Rüttler gegenseitig stören. Bei den bekannten Gleitschalungsvorrichtungen wird begünstigt, dass eine Lage mit höherer Betondichte über einer Lage mit niedriger Betondichte zu liegen kommen kann. Die Luft in der unteren Lage kann dann nicht mehr wirkungsvoll ausgetrieben werden, da sie die obere Lage höherer Betondichte nicht durchdringen kann. Schließlich ist erkannt worden, dass eine zugleich horizontal und vertikal versetzte Anordnung der Rüttler verhindert, dass ein höher angeordneter Rüttler einen tiefer angeordneten Rüttler in seiner Wirkungsweise stört. Erfindungsgemäß ist konkret erkannt worden, dass durch die versetzte Anordnung der Rüttler in horizontaler Richtung stets Kanäle oder Bereiche zwischen den Rüttlern geschaffen werden, durch die Lufteinschlüsse problemlos aus übereinander liegenden Lagen des Betons ausgetrieben werden können. Hierdurch wird die Anzahl der Fehlstellen in der fertigen Betonschutzwand erheblich reduziert und deren Qualität erheblich gesteigert.According to the invention, it has first been recognized that in the known sliding formwork devices, the vibrators are arranged unfavorably. It has been recognized that the vibrators interfere with each other. In the known sliding formwork devices, it is favored that a layer with a higher concrete density can come to lie above a layer with a low concrete density. The air in the lower layer can then no longer be expelled effectively because it can not penetrate the upper layer of higher concrete density. Finally, it has been recognized that a simultaneously horizontally and vertically staggered arrangement of the vibrators prevents a higher arranged vibrator disturbs a deeper vibrator in its operation. According to the invention, it has been concretely recognized that the staggered arrangement of the vibrators in the horizontal direction always creates channels or regions between the vibrators, by means of which the air inclusions can easily be expelled from superimposed layers of the concrete. As a result, the number of defects in the finished concrete protection wall is significantly reduced and their quality significantly increased.
Die Rüttler könnten in unterschiedlichen Höhen auf einer geneigten Ebene angeordnet sein, die einen Neigungswinkel von 16° bis 47° gegen die Vertikale aufweist. Überraschenderweise hat sich gezeigt, dass eine Auswahl des Neigungswinkels aus diesem Bereich erlaubt, besonders effektiv Lufteinschlüsse aus Beton auszutreiben. Der Neigungswinkel kann aus diesem Bereich in Abhängigkeit von der Höhe der Betonschutzwand sowie der Länge der Gleitschalungsform gewählt werden.The vibrators could be arranged at different heights on an inclined plane having an inclination angle of 16 ° to 47 ° to the vertical. Surprisingly, it has been shown that a selection of Angle of inclination from this range allows to expel air bubbles from concrete particularly effectively. The angle of inclination can be selected from this range depending on the height of the concrete protection wall and the length of the slip form.
Der Einfülltrichter könnte im Übergangsbereich zur Gleitschalungsform eine Schräge aufweisen, an der die Rüttler auf einer geneigten Ebene angeordnet sind. Durch diese konkrete Ausgestaltung können die Rüttler auf der am Einfülltrichter ausgebildeten Schräge montiert werden. Die Schräge kann einen Neigungswinkel von 16°bis 47° gegen die Vertikale aufweisen. Die Gleitschalungsform kann in Modulbauweise an den Einfülltrichter angebracht werden. Dabei ist denkbar, dass die Gleitschalungsform im Übergangsbereich zum Einfülltrichter ebenfalls abgeschrägt ausgebildet ist.The hopper could have in the transition region to Gleitschalungsform a slope at which the vibrators are arranged on an inclined plane. By this specific embodiment, the vibrators can be mounted on the slope formed on the hopper. The slope may have an inclination angle of 16 ° to 47 ° to the vertical. The slipform mold can be mounted on the hopper in modular construction. It is conceivable that the slip form in the transition region to the hopper is also formed chamfered.
Die Rüttler könnten dabei von Halterungen gehalten werden, die am Einfülltrichter angeordnet sind. Dabei könnten die Rüttler an den Halterungen unter Zwischenschaltung von Vibrationspuffern aus Gummi angeordnet sein. Hierdurch werden die Vibrationen, die von den Rüttlern erzeugt werden, von den Wänden des Einfülltrichters entkoppelt.The vibrators could be held by brackets, which are arranged on the hopper. The vibrators could be arranged on the brackets with the interposition of vibration buffers made of rubber. As a result, the vibrations generated by the vibrators are decoupled from the walls of the hopper.
Der Einfülltrichter könnte eine Einführungseinrichtung für Armierungen umfassen, welche innerhalb des Einfülltrichters Führungselemente aufweist, die sich in Richtung der Eintrittsöffnung erstrecken. Die Anordnung von Führungselementen innerhalb des Einfülltrichters erlaubt eine zuverlässige Führung der Armierungen. Die Führungselemente bewirken, dass die Armierungen an der richtigen Stelle in der Betonschutzwand positioniert werden. Aus dem Stand der Technik ist die Problematik bekannt, dass Armierungen innerhalb des Einfülltrichters oder der Gleitschalungsform durch die Vibrationen der Rüttler nicht an der richtigen Stellung positioniert werden. Häufig werden die Armierungen nicht weit genug im Innern der Betonschutzwand positioniert, so dass Beton von der fertigen Betonschutzwand abplatzen kann.The hopper could comprise an armature introduction device which has guide elements within the hopper which extend in the direction of the inlet opening. The arrangement of guide elements within the hopper allows reliable guidance of the reinforcements. The guide elements cause the reinforcements to be positioned in the right place in the concrete protection wall. From the prior art, the problem is known that reinforcements within the hopper or Gleitschalungsform are not positioned by the vibrations of the vibrators in the correct position. Frequently, the reinforcements are not positioned far enough inside the concrete protection wall so that concrete can chip off the finished concrete protection wall.
Vor diesem Hintergrund könnten die Führungselemente als Rohre ausgebildet sein. Rohre eignen sich besonders gut, um Metallseile oder Metallstangen zu führen. Rohre können problemlos auf eine geeignete Länge zugeschnitten werden und im Einfülltrichter positioniert werden.Against this background, the guide elements could be formed as tubes. Tubes are ideal for guiding metal cables or metal bars. Pipes can be easily cut to a suitable length and positioned in the hopper.
Vor diesem Hintergrund könnten die Führungselemente im Einfülltrichter durch Vibrationspuffer gelagert sein. Diese konkrete Ausgestaltung erlaubt es, die Führungselemente in Schwingungen zu versetzen, ohne dabei die Wände des Einfülltrichters zu Schwingungen anzuregen.Against this background, the guide elements in the hopper could be supported by vibration buffers. This specific embodiment makes it possible to vibrate the guide elements without causing the walls of the hopper to vibrate.
Zumindest ein Rüttler könnte an einer Außenwand des Einfülltrichters in Höhe der Führungselemente von den Führungseinrichtungen baulich getrennt angeordnet sein. Durch diese konkrete Ausgestaltung kann der gesamte Einfülltrichter zu Vibrationen angeregt werden. Hierdurch kann der Beton im Einfülltrichter nach unten befördert werden. Ein Betonstau kann vermieden werden. Des Weiteren ist vorteilhaft realisiert, dass sich an der Innenseite der Wände des Einfülltrichters kein Beton absetzen kann. Vor diesem Hintergrund ist denkbar, dass ein oder mehrere Rüttler an den Wänden des Einfülltrichters angeordnet werden. Die Anordnung eines Rüttlers in Höhe der Führungselemente ist deswegen sinnvoll, da in diesem Bereich im besonderen Maße die Gefahr besteht, dass sich ein Betonstau ausbildet.At least one vibrator could be arranged structurally separated from the guide devices on an outer wall of the filling funnel in the amount of the guide elements. Through this specific embodiment, the entire hopper can be excited to vibrate. As a result, the concrete in the hopper can be transported down. A concrete jam can be avoided. Furthermore, it is advantageously realized that no concrete can settle on the inside of the walls of the hopper. Against this background, it is conceivable that one or more vibrators are arranged on the walls of the filling funnel. The arrangement of a vibrator in height of the guide elements is therefore useful, since there is a particular danger in this area that forms a concrete jam.
Der Einführungseinrichtung könnte zumindest ein Rüttler zugeordnet sein, der innerhalb des Einfülltrichters an den Führungselementen angeordnet ist. Bei dieser konkreten Ausgestaltung ist vorteilhaft, dass der Rüttler innerhalb des Einfülltrichters durch den einfließenden Beton gekühlt wird.The introduction device could be assigned at least one vibrator, which is arranged within the hopper on the guide elements. In this specific embodiment is advantageous that the vibrator is cooled within the hopper by the inflowing concrete.
Vor diesem Hintergrund könnte der Einführungseinrichtung zumindest ein Rüttler zugeordnet sein, der innerhalb des Einfülltrichters oberhalb der Führungselemente an einer Innenwand des Einfülltrichters angeordnet ist. Diese konkrete Ausgestaltung bewirkt vorteilhaft eine Kühlung des Rüttlers. Des Weiteren wird in diesem kritischen Bereich die Ausbildung eines Betonstaus besonders effektiv vermieden. Der einfließende Beton wird hier unmittelbar durch die Vibrationen des Rüttlers beidseitig des Rüttlers verteilt. Hierdurch kann sich kein Beton auf oder an den Führungselementen absetzen. Dabei ist ebenfalls denkbar, zwei oder mehrere Rüttler seitlich neben den Führungselementen anzubringen. Bei einer Anordnung der Rüttler innerhalb des Einfülltrichters ist weiterhin vorteilhaft, dass die Führungselemente nicht mit Vibrationspuffern gegen den Einfülltrichter gelagert werden müssen. Der konstruktive Aufbau der Gleitschalungsvorrichtung kann hierdurch vereinfacht werden.Against this background, the introduction device could be assigned at least one vibrator, which is arranged inside the filling funnel above the guide elements on an inner wall of the filling funnel. This specific embodiment advantageously effects cooling of the vibrator. Furthermore, the formation of a concrete jam is particularly effectively avoided in this critical area. The inflowing concrete is here distributed directly by the vibrations of the vibrator on both sides of the vibrator. As a result, no concrete can settle on or on the guide elements. It is also conceivable to attach two or more vibrators laterally next to the guide elements. In an arrangement of the vibrator within the hopper is also advantageous that the guide elements must not be stored with vibration buffers against the hopper. The structural design of the sliding formwork device can be simplified thereby.
Der Rüttler kann einen Befestigungsabschnitt und einen Rüttelabschnitt aufweisen, wobei der Befestigungsabschnitt gegenüber dem Rüttelabschnitt abgewinkelt ist. Der Rüttler weist somit eine gekröpfte Bauart auf, wodurch der Rüttelabschnitt des Rüttlers flach in dem Einfülltrichter angeordnet ist und die Rüttler eine besonders große Fläche des Einfülltrichters mit Vibrationen beaufschlagen und dadurch Lufteinschlüsse austreiben.The vibrator may have a mounting portion and a Rüttelabschnitt, wherein the mounting portion is angled relative to the Rüttelabschnitt. The vibrator thus has a cranked design, whereby the Rüttelabschnitt the vibrator is arranged flat in the hopper and the vibrators act on a particularly large area of the hopper with vibrations and thereby expel air bubbles.
In diesem Zusammenhang können in dem Einfülltrichter Querträger angeordnet sein, an denen die Rüttler befestigt sind. Die Querträger sind vorzugsweise mittels einer Schweißverbindung an den Seitenwänden des Einfülltrichters befestigt. Dabei sind die Rüttler vorzugsweise über Vibrationspuffer hängend an den Querträgern gelagert. Diese Ausgestaltung ermöglicht eine besonders flexible und variable Aufhängung der Rüttler in dem Einfülltrichter.In this connection, cross members may be arranged in the hopper, to which the vibrators are attached. The cross members are preferably fastened by means of a welded connection to the side walls of the hopper. The vibrators are preferably mounted on vibrating buffer hanging on the cross members. This embodiment allows a particularly flexible and variable suspension of the vibrator in the hopper.
Die Führungselemente können an den Querträgern fixiert sein. Dadurch sind die Führungselemente innerhalb des Einfülltrichters stabilisiert, so dass die Position der Armierung innerhalb der Betonschutzwand sicher gestellt ist.The guide elements can be fixed to the cross members. As a result, the guide elements are stabilized within the hopper, so that the position of the reinforcement is ensured within the concrete protective wall.
Die Rüttelfrequenz der Rüttler könnte variabel steuer- oder regelbar sein. Hierdurch kann die Rüttelfrequenz an die Viskosität des verwendeten Betons oder an spezielle bauliche Gegebenheiten angepasst werden. Insbesondere ist denkbar, dass einer oder mehrere Rüttler an ein Steuersystem oder ein Regelsystem angeschlossen werden, welches mit Sensoren kommuniziert. Die Sensoren können überwachen, ob die Rüttler tatsächlich die Rüttelfrequenz erzeugen, welche sie im Einsatzfall erzeugen sollen.The vibrator frequency of the vibrators could be variably controlled or regulated. As a result, the vibration frequency can be adapted to the viscosity of the concrete used or to specific structural conditions. In particular, it is conceivable that one or more vibrators are connected to a control system or a control system which communicates with sensors. The sensors can monitor whether the vibrators actually generate the vibrating frequency which they are to produce in the application.
Einige Ausführungsbeispiele der erfindungsgemäßen Gleitschalungsvorrichtung werden nachfolgend anhand der Figuren näher beschrieben. Diese zeigen, jeweils schematisch:
- Fig. 1
- eine Gleitschalungsvorrichtung in einer Schnittansicht, wobei die Rüttler versetzt zueinander auf einer geneigten Ebene angeordnet sind;
- Fig. 2
- eine Gleitschalungsvorrichtung, bei der ein Rüttler an einer Außenwand des Einfülltrichters angeordnet ist;
- Fig. 3
- eine Schnittansicht einer Gleitschalungsvorrichtung, bei welcher den Führungselementen ein Rüttler zugeordnet ist, der im Inneren des Einfülltrichters positioniert ist;
- Fig. 4
- eine Schnittansicht einer Gleitschalungsvorrichtung, bei welcher ein Rüttler im Inneren des Einfülltrichters oberhalb der Führungselemente angeordnet ist;
- Fig. 5
- eine Schnittansicht einer Gleitschalungsvorrichtung mit gekröpften Rüttlern, die an Querträgern aufgehängt sind;
- Fig. 6
- eine Schnittansicht einer Gleitschalungsvorrichtung, welche mit Sensoren versehen ist, die den Rüttlern zugeordnet sind;
- Fig. 7
- eine Schnittansicht einer Gleitschalungsvorrichtung gemäß dem Stand der Technik.
- Fig. 1
- a Gleitschalungsvorrichtung in a sectional view, wherein the vibrators offset from one another are arranged on an inclined plane;
- Fig. 2
- a slip-form device in which a vibrator is disposed on an outer wall of the hopper;
- Fig. 3
- a sectional view of a Gleitschalungsvorrichtung, wherein the guide elements associated with a vibrator, which is positioned inside the hopper;
- Fig. 4
- a sectional view of a Gleitschalungsvorrichtung, in which a vibrator is arranged in the interior of the hopper above the guide elements;
- Fig. 5
- a sectional view of a Gleitschalungsvorrichtung with cranked vibrators, which are suspended from cross members;
- Fig. 6
- a sectional view of a Gleitschalungsvorrichtung, which is provided with sensors associated with the vibrators;
- Fig. 7
- a sectional view of a sliding formwork device according to the prior art.
Alle Bezugszeichen, die in den
Die Rüttler 6 sind an Halterungen 15 befestigt. Die Befestigung der Rüttler 6 an den Halterungen 15 erfolgt unter Zwischenlage jeweils eines Vibrationspuffers 9. Die Rüttler 6 sind als Vibrationsnadeln ausgestaltet, deren Achse gegen die Vertikale leicht geneigt ist.The
Die Rüttler 6 befinden sich auf unterschiedlichen Höhen auf einer geneigten Ebene, die einen Neigungswinkel α aufweist, der im Bereich von 16° bis 47° liegt. Die geneigte Ebene schließt den Neigungswinkel α mit der Vertikalen ein.The
Der Einfülltrichter 5 weist im Übergangsbereich 3a zur Gleitschalungsform 1 eine Schräge auf, an der die Rüttler 6 auf einer geneigten Ebene angeordnet sind. Die Schräge weist einen Neigungswinkel α gegen die Vertikale auf, der im Bereich von 16° bis 47° liegt.The
Die Wirkungsweise der Gleitschalungsvorrichtung ist wie folgt:
- Der Beton wird von oben in
den Einfülltrichter 5 eingefüllt und durch dieRüttler 6 verdichtet.Durch die Eintrittsöffnung 3 tritt der Beton indie Gleitschalungsform 1. Der verfestigte Beton tritt aus der Austrittsöffnung 4 aus. Beim Verfahren der Gleitschalungsvorrichtungvon der Austrittsöffnung 4 betrachtet inRichtung der Eintrittsöffnung 3 gibt dieGleitschalungsform 1 die fertige Betonschutzwand frei,wobei die Wände 2der Gleitschalungsform 1 die Gestalt der Betonschutzwand vorgeben und bilden.
- The concrete is filled from above into the
hopper 5 and compacted by thevibrator 6. Through theinlet opening 3 of the concrete enters theslipform mold 1. The solidified concrete emerges from theoutlet opening 4. In the process of the sliding formwork device viewed from theoutlet opening 4 in the direction of theinlet opening 3, theslipform mold 1 releases the finished concrete protective wall, wherein thewalls 2 of theslipform mold 1 predetermine and form the shape of the concrete protective wall.
Der Einfülltrichter 5 umfasst eine Einführungseinrichtung für Armierungen, welche innerhalb des Einfülltrichters 5 Führungselemente 8 aufweist. Die Führungselemente 8 erstrecken sich in Richtung der Eintrittsöffnung 3. Die Führungselemente 8 sind als Rohre ausgebildet und dienen der Führung von Metallseilen oder Metallstangen, die im Inneren einer Betonschutzwand aufgenommen werden sollen.The
Die Anordnung der Rüttler 6 gemäß dem Stand der Technik führt zu Problemen bei der Verdichtung des Betons im Einfülltrichter 5. Die Vibrationen des obersten Rüttlers 6 stören die Arbeitsweise der unter ihm angeordneten Rüttler 6. Der oberste Rüttler 6 erzeugt eine Lage hoher Betondichte, durch welche Luft aus Lufteinschlüssen unterhalb dieser Lage oftmals nicht in ausreichendem Maße hindurch treten kann. Die
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP12182081.5A EP2703580A1 (en) | 2012-08-28 | 2012-08-28 | Slipform device for producing concrete safety walls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP12182081.5A EP2703580A1 (en) | 2012-08-28 | 2012-08-28 | Slipform device for producing concrete safety walls |
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EP2703580A1 true EP2703580A1 (en) | 2014-03-05 |
Family
ID=46967974
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EP12182081.5A Withdrawn EP2703580A1 (en) | 2012-08-28 | 2012-08-28 | Slipform device for producing concrete safety walls |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8858638B2 (en) | 1995-06-07 | 2014-10-14 | Warsaw Orthopedic, Inc. | Spinal implant |
Citations (5)
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US3274906A (en) * | 1963-12-09 | 1966-09-27 | Edoco Technical Products | Joint installation apparatus |
US4027990A (en) * | 1974-06-19 | 1977-06-07 | Merrill Charles T | Adjustable curber and sidewalk-forming machine |
US4076474A (en) * | 1977-02-22 | 1978-02-28 | Gerald Anthony Catenacci | Slip form for concrete |
US4217065A (en) * | 1978-06-02 | 1980-08-12 | Stilwell Leo J | Slip-form curb and gutter machine |
EP2192251A2 (en) * | 2008-11-28 | 2010-06-02 | Faber, Sylke | Slipform device |
-
2012
- 2012-08-28 EP EP12182081.5A patent/EP2703580A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US3274906A (en) * | 1963-12-09 | 1966-09-27 | Edoco Technical Products | Joint installation apparatus |
US4027990A (en) * | 1974-06-19 | 1977-06-07 | Merrill Charles T | Adjustable curber and sidewalk-forming machine |
US4076474A (en) * | 1977-02-22 | 1978-02-28 | Gerald Anthony Catenacci | Slip form for concrete |
US4217065A (en) * | 1978-06-02 | 1980-08-12 | Stilwell Leo J | Slip-form curb and gutter machine |
EP2192251A2 (en) * | 2008-11-28 | 2010-06-02 | Faber, Sylke | Slipform device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US8858638B2 (en) | 1995-06-07 | 2014-10-14 | Warsaw Orthopedic, Inc. | Spinal implant |
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