EP1441073B1 - Concrete protective wall - Google Patents

Concrete protective wall Download PDF

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Publication number
EP1441073B1
EP1441073B1 EP04450012A EP04450012A EP1441073B1 EP 1441073 B1 EP1441073 B1 EP 1441073B1 EP 04450012 A EP04450012 A EP 04450012A EP 04450012 A EP04450012 A EP 04450012A EP 1441073 B1 EP1441073 B1 EP 1441073B1
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EP
European Patent Office
Prior art keywords
concrete
approx
profile rods
barrier according
ground
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EP04450012A
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German (de)
French (fr)
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EP1441073A3 (en
EP1441073A2 (en
Inventor
Alexander Dipl.-Ing. Barnas
Alfred Redlberger
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MABA Fertigteilindustrie GmbH
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MABA Fertigteilindustrie GmbH
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    • 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
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0476—Foundations
    • 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
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/081—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material
    • E01F15/083—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material using concrete

Definitions

  • the invention relates to a concrete protective wall according to the preamble of claim 1.
  • a concrete protective wall was, for example, by the AT 388 006 B
  • Known in this known solution holes are arranged in the foot parts, which are penetrated by screws and are aligned substantially perpendicular to the footprint.
  • the WO 00/08259 A1 relates to a concrete protection wall, in which sliding elements are arranged on the underside of the concrete parts of the concrete protection wall and are connected in the concrete parts with a vertical profile bar with the ground.
  • the DE 1 292 156 A proposed a concrete protection wall, in which the concrete parts are formed in cross-section substantially triangular and are held with threaded bolts, which pass through the concrete parts centrally in the longitudinal center plane.
  • the threaded bolts pass through the respective concrete part substantially parallel to a side surface.
  • the threaded bolts are screwed into threaded sleeves, which are held in the road surface.
  • the aim of the invention is to avoid these disadvantages and to propose a concrete protective wall of the type mentioned above, which is characterized by a simple structure and easy installation and safely reduce larger impact energies and therefore can withhold even heavier vehicles even with only small deformation spaces.
  • a concrete protective wall according to the invention is particularly suitable for securing medium-leveled lanes, but also for securing against obstacles that would not withstand a collision with the vehicle, such as, for example. Lighting masts, gantries, drainage shafts and the like, but also for fall protection on slopes. A high level of safety is also provided when only small deformation spaces can be provided due to the local conditions.
  • a particularly suitable deflection of the horizontal forces can be achieved by the features of claim 2, wherein the concrete element is pulled in an impact of the profiled bars in the ground.
  • a concrete protective wall according to the invention can be adapted in a very simple manner to the respective requirements and circumstances.
  • a concrete protective wall can be achieved, which has a good protective effect in a sufficient Has yielding, whereby a high energy absorption of the concrete protection wall can be ensured even with small displacements.
  • the concrete protective wall in a relatively low energy impact, e.g. in the event of a car impact, it will essentially be how a concrete protective wall loosely placed on the ground reacts and the impact energy is dissipated essentially solely by friction between the footprint of the concrete wall and the ground. Only at higher impact energies act in the degradation of these energies, the profiles due to their deformation and the associated deformation work and the formation of wedges of the substrate with the displacement of the profiles. The two last-mentioned effects occur essentially only in the event of an impact of trucks, whereby these too are stopped by a short path and, e.g. can be secured against a crash.
  • a very simple embodiment of a profile bar, with which a high pull-out force can be achieved, results from the features of claim 12.
  • a particularly high pull-out force for a profile bar can be achieved by the features of claim 13.
  • the invention further relates to a concrete part for the formation of a concrete protective wall according to the invention.
  • a concrete protective wall according to the invention is, as shown in Fig. 1 can be seen, assembled from a variety of concrete elements 1, which are on the ground 2 and the front side are connected to each other in the usual way.
  • the concrete elements 1 have a substantially T-shaped cross-section, wherein the one leg forms a foot part 3, the outer, facing away from the second wall part 4 surface forms a footprint 6.
  • This foot part 3 is penetrated by a plurality of holes 5. Through these holes 5 through profile bars 7 are rammed into the ground 2.
  • the profile bars 7 may have a non-circular cross-section. Depending on the particular requirements such profile bars 7 can be rammed on both sides of the wall part 4 of the concrete element 1 or only at one, as shown in the Fig. 2 is shown.
  • the distances of the holes 5 may be selected differently, depending on the expected impact energy and the available deformation space on the side facing away from the road side of the concrete elements 1.
  • the holes 5 can be arranged offset on both sides of the wall part 4 against each other in order to avoid a mutual influence of the profile bars 7 in the event of an impact.
  • Fig. 2 are the holes 5 against a built on the installation surface 6 normal plane NN, which extends in the longitudinal direction of the concrete element 1 inclined, which is why the profile bars 7 are driven into the ground 2 at a corresponding angle.
  • NN normal plane
  • the bore 5 with the normal plane NN has an angle in the range between approximately 10 ° and approximately 50 °, preferably in the range between approximately 15 ° and approximately 40 °, in particular in the range between approximately 20 ° and approximately 30 ° includes.
  • the profile rods 7 begin to deform, the deformation work required for this purpose further absorbing the impact energy.
  • the profile bars 7 are displaced in the direction of the roadway 8 at correspondingly high impact energies in the ground 2.
  • wedges 9 form from underground material, which move against the surrounding material of the substrate 2.
  • correspondingly high frictional forces must be overcome, which consumes the remaining impact energy over a relatively short distance.
  • the substrate 2 is plowed by the profile bars 7.
  • the second profile bar has only a limited effect with regard to the formation of the mentioned wedge 9 of the background material.
  • the profile bars on both sides are substantially the same effect.
  • a profile bar 7 after the 3 and 4 is formed of a tube 20 which is connected at one end to a cover plate 21 and is cut off obliquely at its second end.
  • transverse bores 22, 23 are provided in mutually perpendicular directions in this embodiment of a profile bar. In this case, during the ramming of such a profile bar 7 in the ground on the transverse bores 22, 23 bridges, through which the profile bar opposes an extraction from the ground increased resistance.
  • a profile bar 7 after the FIGS. 5 and 6 is formed of a rectangular cross-section profile tube 24 which is connected at its one end to a cover plate 21 and cut obliquely at its second end to facilitate the ramming of the profile bar 7 in the ground.
  • the profile bar 7 is provided with from the longitudinal and narrow sides of the profile tube 24 laterally projecting V-shaped and upwards to, or the cover plate 21 to open transverse struts 24.
  • These cross struts 24 cause a very significant difference in resistance that the profile bar opposes when driving in and pulling out a longitudinal movement relative to the ground. This results in a much greater resistance when pulling out of the profile bar 7 from the ground than during ramming in the same.
  • the cross struts 24 also increase the resistance when plowing through the ground in the event of a collision of a vehicle to the concrete protective wall according to the invention and thus the efficiency of the same.
  • a profile bar 7 after the Fig. 7 this is formed from a tube 20 which is connected at one end to a cover plate 21 and cut obliquely at its second end.
  • dents 26 are provided to increase the pull-out force, which increase the pull-out resistance.
  • the profile bar 7 is formed by a 1-profile.
  • a cover plate 21 is attached to one end of the profile bar 7 and in the region of the second end of this I-profile is cut off obliquely in order to facilitate the ramming into the ground.
  • the flanges 29 of the 1-profile 28 are provided with obliquely against the oblique end of the profile bar 7 extending edge-open notches 30, wherein the remaining between the notches 30 flange areas similar to the teeth of a saw blade can be folded against each other. By means of these notches 30, such a profile bar sets a very considerable resistance to being pulled out of the ground.
  • the profile bar 7 is also formed by an I-profile 28, wherein at one end a cover plate 21 mounted and the second end is cut off obliquely.
  • 28 projections 32 are welded to the web 31 of the 1-profile, which extend between the flanges 29 of the profile 28 and are directed obliquely upwards, or to the cover plate 21 out. This orientation of the projections 32 results in a very high extraction resistance.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Description

Die Erfindung betrifft eine Betonschutzwand gemäß dem Oberbegriff des Anspruches 1. Eine solche Betonschutzwand wurde z.B, durch die AT 388 006 B bekannt Bei dieser bekannten Lösung sind in den Fußteilen Bohrungen angeordnet, die von Schrauben durchsetzt sind und im wesentlichen senkrecht zur Aufstandsfläche ausgerichtet sind.The invention relates to a concrete protective wall according to the preamble of claim 1. Such a concrete protective wall was, for example, by the AT 388 006 B Known in this known solution holes are arranged in the foot parts, which are penetrated by screws and are aligned substantially perpendicular to the footprint.

Bei diesen Maßnahmen ist sichergestellt, dass zum Abbau der Aufprallenergie nicht nur die zwischen der Aufstandsfläche und dem Untergrund auftretenden Reibungskräfte zur Verfügung stehen, sondern bei größeren Aufprallenergien auch die Arbeit, die zur Vorformung und/oder Bewegung der in dem Untergrund verankerten Schrauben zur Verfügung steht. Dabei kommt es bei entsprechend großen Aufprallenergien auch zu einem Durchpflügen des Untergrunds durch die Schrauben oder einem Ausreißen derselben, wobei sich in Verschieberichtung vor diesen Keile des Untergrundmaterials, z.B. Erde ausbilden, wodurch für eine Verschiebung der Schrauben größere Energien aufgebracht werden müssen. Es hat sich allerdings gezeigt, dass mit solchen Lösungen Energien, wie sie beim Anprall von schwereren LKWs auftreten kaum zu bewältigen sind. Bei dieser bekannten Lösung ergibt sich auch das Problem, dass die Schrauben bei größeren aufzunehmenden Kräften leicht abgebogen und ausgerissen werden können, wonach die Leiteinrichtung ihre Wirksamkeit im Wesentlichen verliert.These measures ensure that not only the frictional forces occurring between the footprint and the ground are available to reduce the impact energy, but also the work that is available for preforming and / or movement of the anchored in the ground screws for larger impact energies , In the case of correspondingly high impact energies, the plowing through or dragging out of the ground by the screws also occurs, whereby in the direction of displacement in front of these wedges of the base material, e.g. Form earth, which must be applied to shift the screws greater energies. However, it has been shown that with such solutions energies, such as occur in the impact of heavier trucks are difficult to handle. In this known solution, there is also the problem that the screws can be easily bent and torn at larger forces to be absorbed, after which the guide loses its effectiveness substantially.

Die WO 00/08259 A1 betrifft eine Betonschutzwand, bei der an der Unterseite der Betonteile der Betonschutzwand Gleitelemente angeordnet sind und bei der Betonteile mit einem vertikalen Profilstab mit dem Untergrund verbunden sind.The WO 00/08259 A1 relates to a concrete protection wall, in which sliding elements are arranged on the underside of the concrete parts of the concrete protection wall and are connected in the concrete parts with a vertical profile bar with the ground.

Aus der US 5 302 047 A geht ein Betonteil hervor, das über eine Gehsteigkante angeordnet werden kann.From the US 5,302,047 A emerges a concrete part that can be arranged over a sidewalk edge.

Weiters wurde durch die DE 1 292 156 A eine Betonschutzwand vorgeschlagen, bei der die Betonteile im Querschnitt im Wesentlichen dreieckig ausgebildet sind und mit Gewindebolzen gehalten sind, die zentral in der Längsmittenebene die Betonteile durchsetzen. Im Bereich einer Dehnungsfuge der Fahrbahn durchsetzen die Gewindebolzen jedoch den jeweiligen Betonteil im wesentlichen parallel zu einer Seitenfläche. Die Gewindebolzen sind in Gewindehülsen eingeschraubt, die in der Fahrbahndecke gehalten sind.Furthermore, by the DE 1 292 156 A proposed a concrete protection wall, in which the concrete parts are formed in cross-section substantially triangular and are held with threaded bolts, which pass through the concrete parts centrally in the longitudinal center plane. However, in the region of an expansion joint of the roadway, the threaded bolts pass through the respective concrete part substantially parallel to a side surface. The threaded bolts are screwed into threaded sleeves, which are held in the road surface.

Bei dieser bekannten Lösung ergeben sich im wesentlichen die oben beschriebenen Probleme. Durch die AT 393 146 B wurde eine Leiteinrichtung bekannt, die aus stirnseitig aneinandergereihten Betonsockeln gebildet ist. Diese Sockeln weisen gegengleich ausgebildete und ineinandergreifende Stirnbereiche auf und sind mit von der Oberseite zur Aufstandsfläche im montierten Zustand vertikal durchgehenden Durchbrüchen versehen, die im Querschnitt im Wesentlichen Doppel-T-förmig ausgebildet sind und zur Aufnahme Pfählen mit einem I-Profil dienen. Diese Pfähle durchsetzen diese Durchbrüche und sind in den Untergrund eingerammt.In this known solution, essentially the problems described above arise. By the AT 393 146 B was a guide known, which is formed from end-to-end lined concrete bases. These sockets have counter-trained and interlocking end portions and are provided with from the top to the footprint in the assembled state vertically continuous openings, the are formed in cross-section substantially double-T-shaped and are used to hold piles with an I-profile. These piles pass through these openings and are rammed into the ground.

Im Falle eines Anpralls eines Fahrzeuges sollen diese Pfähle die auftretenden Kräfte in den Untergrund übertragen, wobei es zu einem Durchpflügen des Untergrundes kommen sollte.In the case of a collision of a vehicle these piles should transmit the forces occurring in the ground, which should come to a plowing of the substrate.

Bei dieser Lösung ergibt sich jedoch der Nachteil, dass sich die vertikal in den Boden ragenden Pfähle bei entsprechend großen Kräften umbiegen und es nicht zu einem Durchpflügen des Bodens kommt. Dabei können die Betonsockel zumindest teilweise von den Pfählen abgezogen werden. Solche von der Fahrbahnfläche abgehobenen Betonsockeln stellen jedoch eine erhebliche Gefahr dar und müssen daher nach einem Anprall eines Fahrzeuges entsprechend rasch entfernt und ersetzt werden.In this solution, however, there is the disadvantage that bend the vertically projecting into the ground piles at correspondingly large forces and it does not come to a plowing of the soil. The concrete base can be at least partially deducted from the piles. However, such lifted off the road surface concrete pedestals are a significant risk and must therefore be removed and replaced accordingly after a collision of a vehicle accordingly.

Ziel der Erfindung ist es, diese Nachteile zu vermeiden und eine Betonschutzwand der eingangs erwähnten Art vorzuschlagen, die sich durch einen einfachen Aufbau und einfache Montage auszeichnet und auch größere Aufprallenergien sicher abbauen und daher auch schwerere Fahrzeuge auch bei nur geringen Verformungsräumen zurückhalten kann.The aim of the invention is to avoid these disadvantages and to propose a concrete protective wall of the type mentioned above, which is characterized by a simple structure and easy installation and safely reduce larger impact energies and therefore can withhold even heavier vehicles even with only small deformation spaces.

Erfindungsgemäß wird dies bei einer Betonschutzwand der eingangs erwähnten Art durch die kennzeichnenden Merkmale des Anspruches 1 erreicht.This is achieved according to the invention in a concrete protective wall of the type mentioned by the characterizing features of claim 1.

Eine erfindungsgemäße Betonschutzwand eignet sich besonders zur Mittelabsicherung von versetzten Fahrbahnen, aber auch zur Sicherung vor Hindernissen, die einem Fahrzeugaufprall nicht standhalten würden, wie z.B. Beleuchtungsmaste, Schilderbrücken, Entwässerungsschächte u.dgl., aber auch zur Absturzsicherung bei Böschungen. Dabei ist ein hohes Maß an Sicherheit auch dann gegeben, wenn aufgrund der örtlichen Gegebenheiten nur kleine Verformungsräume bereitgestellt werden können.A concrete protective wall according to the invention is particularly suitable for securing medium-leveled lanes, but also for securing against obstacles that would not withstand a collision with the vehicle, such as, for example. Lighting masts, gantries, drainage shafts and the like, but also for fall protection on slopes. A high level of safety is also provided when only small deformation spaces can be provided due to the local conditions.

Durch die vorgeschlagenen Merkmale wird erreicht, dass sich die erwähnten Keile des Untergrundmaterials im Falle eines Aufpralls mit entsprechend hoher Energie früher aufbauen, verglichen mit parallel zur Normalebene auf die Aufstandsfläche eingerammten Profilen. Dadurch kann die Aufprallenergie auf einem kürzeren Weg abgebaut werden.By the proposed features it is achieved that the mentioned wedges of the base material build up earlier in case of impact with correspondingly high energy, compared with parallel to the normal plane rammed on the footprint profiles. As a result, the impact energy can be reduced in a shorter way.

Durch die geneigte Anordnung der Profilstäbe kann eine Umlenkung der bei einem Anprall auf die Betonschutzwand wirkenden Horizontalkräfte erreicht werden, wobei zwischen Betonelement und Untergrund eine dem Anprall entgegenwirkende Zugkraft erreicht wird.Due to the inclined arrangement of the profiled bars, a deflection of the horizontal forces acting in the event of an impact on the concrete protective wall can be achieved, wherein a tensile force counteracting the impact is achieved between the concrete element and the substrate.

Eine besonders geeignete Umlenkung der Horizontalkräfte kann durch die Merkmale des Anspruchs 2 erreicht werden, wobei das Betonelement bei einem Aufprall von den Profilstäben in den Untergrund gezogen wird.A particularly suitable deflection of the horizontal forces can be achieved by the features of claim 2, wherein the concrete element is pulled in an impact of the profiled bars in the ground.

Durch die Merkmale des Anspruches 3 kann eine erfindungsgemäße Betonschutzwand auf sehr einfache Weise an die jeweiligen Erfordernisse und Gegebenheiten angepasst werden.Due to the features of claim 3, a concrete protective wall according to the invention can be adapted in a very simple manner to the respective requirements and circumstances.

Insbesondere bei einer Ausgestaltung gemäß den Merkmalen des Anspruchs 4 kann eine Betonschutzwand erreicht werden, die eine gute Schutzwirkung bei einer hinreichenden Nachgiebigkeit aufweist, wodurch eine hohe Energieaufnahme der Betonschutzwand auch bei kleinen Verschiebungen sichergestellt werden kann.In particular, in an embodiment according to the features of claim 4, a concrete protective wall can be achieved, which has a good protective effect in a sufficient Has yielding, whereby a high energy absorption of the concrete protection wall can be ensured even with small displacements.

Durch die Merkmale des Anspruches 5 ergibt sich der Vorteil, dass die Betonschutzwand bei einem Aufprall mit relativ geringer Energie, wie dies z.B. bei einem Aufprall eines PKW's der Fall sein wird, im wesentlichen, wie eine lose auf dem Untergrund aufgestellte Betonschutzwand reagiert und der Abbau der Aufprallenergie im wesentlichen allein durch Reibung zwischen der Aufstandsfläche der Betonwand und dem Untergrund erfolgt. Erst bei höheren Aufprallenergien wirken beim Abbau dieser Energien die Profile aufgrund ihrer Verformung und der damit verbundenen Verformungsarbeit und der Ausbildung von Keilen des Untergrundmaterials bei der Verschiebung der Profile mit. Dabei treten die beiden letztgenannten Effekte im wesentlichen nur bei einem Aufprall von LKW's auf wobei auch diese auf kurzem Wege angehalten werden und z.B. vor einem Absturz gesichert werden können.By the features of claim 5, there is the advantage that the concrete protective wall in a relatively low energy impact, e.g. in the event of a car impact, it will essentially be how a concrete protective wall loosely placed on the ground reacts and the impact energy is dissipated essentially solely by friction between the footprint of the concrete wall and the ground. Only at higher impact energies act in the degradation of these energies, the profiles due to their deformation and the associated deformation work and the formation of wedges of the substrate with the displacement of the profiles. The two last-mentioned effects occur essentially only in the event of an impact of trucks, whereby these too are stopped by a short path and, e.g. can be secured against a crash.

Durch die Merkmale des Anspruches 6 wird sichergestellt, dass alle Profilstäbe im Hinblick auf ein Durchpflügen des Untergrundes bei einem mit hoher Energie erfolgenden Aufprall voll wirksam sind.By the features of claim 6 it is ensured that all profile bars are fully effective in terms of plowing through the substrate in a high-energy impact.

Um die Auszugskraft der Profilstäbe zu erhöhen und dadurch die Kräfte, die durch die erfindungsgemäße Betonschutzwand aufgenommen werden können, weiter zu erhöhen, ist es vorteilhaft die Merkmale des Anspruches 7 vorzusehen.In order to increase the pull-out force of the profile bars and thereby further increase the forces that can be absorbed by the concrete protection wall according to the invention, it is advantageous to provide the features of claim 7.

In diesem Zusammenhang können die Merkmale des Anspruches 8 vorgesehen sein. Durch diese Maßnahmen ergibt sich eine sehr wesentliche Erhöhung der Auszugskraft eines solchen in den Untergrund gerammten Profilstabes.In this context, the features of claim 8 may be provided. These measures result in a very substantial increase in the pull-out force of such a rammed into the ground profile bar.

Eine in konstruktiver Hinsicht sehr einfache Lösung zur Erhöhung der Auszugskraft der Profilstäbe lässt sich durch die Merkmale des Anspruches 9 erreichen.A structurally very simple solution for increasing the pull-out force of the profile bars can be achieved by the features of claim 9.

Durch die Merkmale des Anspruches 10 ergibt sich eine Lösung, durch die eine hohe Auszugskraft der Profilstäbe erreicht werden kann.Due to the features of claim 10 results in a solution by which a high pull-out force of the profile bars can be achieved.

Eine weitere Möglichkeit zur Erhöhung der Auszugskraft eines Profilstabes ergibt sich durch die Merkmale des Anspruches 11, wobei diese Maßnahmen nur einen geringen konstruktiven Aufwand erfordern.Another way to increase the pull-out force of a profile bar results from the features of claim 11, these measures require only a small design effort.

Eine sehr einfache Ausbildung eines Profilstabes, mit dem sich eine hohe Auszugskraft erreichen lässt, ergibt sich durch die Merkmale des Anspruches 12.A very simple embodiment of a profile bar, with which a high pull-out force can be achieved, results from the features of claim 12.

Eine besonders hohe Auszugskraft für einen Profilstab lässt sich durch die Merkmale des Anspruches 13 erreichen.A particularly high pull-out force for a profile bar can be achieved by the features of claim 13.

Die Erfindung betrifft weiters einen Betonteil für die Ausbildung einer erfindungsgemäßen Betonschutzwand.The invention further relates to a concrete part for the formation of a concrete protective wall according to the invention.

Die Erfindung wird unter Bezugnahme auf die beigeschlossenen Zeichnungen, in welchen besonders bevorzugte Ausführungsbeispiele dargestellt sind, näher beschrieben. Dabei zeigt:

  • Fig. 1 schematisch eine erfindungsgemäße Betonschutzwand,
  • Fig.2 einen Querschnitt durch die Betonschutzwand nach der Fig. 1,
  • Fig.3 bis 11 verschiedene Ausführungsformen von Profilstäben mit erhöhter Auszugskraft.
The invention will be described in more detail with reference to the accompanying drawings, in which particularly preferred embodiments are shown. Showing:
  • Fig. 1 schematically a concrete protective wall according to the invention,
  • Fig.2 a cross section through the concrete protective wall after the Fig. 1 .
  • 3 to 11 Various embodiments of profile bars with increased pull-out force.

Eine erfindungsgemäße Betonschutzwand nach der Erfindung ist, wie aus der Fig. 1 zu ersehen ist, aus einer Vielzahl von Betonelementen 1 zusammengebaut, die auf dem Untergrund 2 stehen und stirnseitig miteinander in üblicher Weise verbunden sind.A concrete protective wall according to the invention is, as shown in Fig. 1 can be seen, assembled from a variety of concrete elements 1, which are on the ground 2 and the front side are connected to each other in the usual way.

Wie insbesondere aus der Fig. 2 zu ersehen ist, weisen die Betonelemente 1 einen im wesentlichen T-förmigen Querschnitt auf, wobei der eine Schenkel einen Fußteil 3 bildet, dessen äußere, vom zweiten Wandteil 4 abgekehrte Fläche eine Aufstandsfläche 6 bildet.As in particular from the Fig. 2 can be seen, the concrete elements 1 have a substantially T-shaped cross-section, wherein the one leg forms a foot part 3, the outer, facing away from the second wall part 4 surface forms a footprint 6.

Dieser Fußteil 3 ist von einer Mehrzahl von Bohrungen 5 durchsetzt. Durch diese Bohrungen 5 hindurch sind Profilstäbe 7 in den Untergrund 2 gerammt. Dabei können die Profilstäbe 7 einen unrunden Querschnitt aufweisen. Je nach den jeweiligen Erfordernissen können solche Profilstäbe 7 an beiden Seiten des Wandteils 4 des Betonelementes 1 eingerammt werden oder nur an einer, wie dies in der Fig. 2 dargestellt ist. Auch können die Abstände der Bohrungen 5 verschieden gewählt sein, in Abhängigkeit von den zu erwartenden Aufprallenergien und dem zur Verfügung stehenden Verformungsraum an der von der Fahrbahn abgekehrten Seite der Betonelemente 1. Dabei können die Bohrungen 5 an beiden Seiten des Wandteils 4 gegeneinander versetzt angeordnet sein, um im Falle eines Aufpralles eine gegenseitige Beeinflussung der Profilstäbe 7 zu vermeiden.This foot part 3 is penetrated by a plurality of holes 5. Through these holes 5 through profile bars 7 are rammed into the ground 2. The profile bars 7 may have a non-circular cross-section. Depending on the particular requirements such profile bars 7 can be rammed on both sides of the wall part 4 of the concrete element 1 or only at one, as shown in the Fig. 2 is shown. The distances of the holes 5 may be selected differently, depending on the expected impact energy and the available deformation space on the side facing away from the road side of the concrete elements 1. The holes 5 can be arranged offset on both sides of the wall part 4 against each other in order to avoid a mutual influence of the profile bars 7 in the event of an impact.

Es kann auch vorgesehen sein, dass in Querrichtung zwischen der der Fahrbahn näheren Wand einer Bohrung 5 und einem in diese eingesetzten Profilstab 7 ein größeres Spiel vorhanden ist. Dadurch ist sichergestellt, dass sich die Betonschutzwand bei einem Aufprall mit einer relativ geringen Energie gleich wie eine Betonschutzwand verhält, deren Betonelemente lediglich auf dem Untergrund stehen und mit diesem nur über die Reibung mit verbunden sind und an ihrem Platz gehalten werden.It can also be provided that in the transverse direction between the road nearer wall of a bore 5 and a profiled bar 7 inserted into this, a greater clearance is available. This ensures that the concrete protection wall behaves in a collision with a relatively low energy equal to a concrete protection wall whose concrete elements are only on the ground and are connected to this only through the friction and held in place.

Bei der Ausführungsform nach der Fig. 2 sind die Bohrungen 5 gegen eine auf die Aufstellungsfläche 6 errichtete Normalebene N-N, die sich in Längsrichtung des Betonelementes 1 erstreckt geneigt, weshalb auch die Profilstäbe 7 in einem entsprechenden Winkel in den Untergrund 2 eingerammt sind. Weist die Bohrung 5 - in Richtung zum Untergrund 2 gesehen - von der der Fahrbahn zugewandten Seite des Betonteiles 1 weg, so wird bei einem Aufprall das Betonelement 1 von den Profilstäben 7 in den Untergrund gezogen und die Normalkraft zwischen dem Untergrund 2 und dem Betonteil 1 erhöht, wodurch auch die Reibungskräfte und somit die Rückhaltewirkung der erfindungsgemäßen Betonschutzwand erhöht werden. Als geeignet hat sich gezeigt, wenn die Bohrung 5 mit der Normalebene N-N einen Winkel im Bereich zwischen etwa 10° und etwa 50°, bevorzugt im Bereich zwischen etwa 15° und etwa 40°, insbesondere im Bereich zwischen etwa 20° und etwa 30° einschließt.In the embodiment of the Fig. 2 are the holes 5 against a built on the installation surface 6 normal plane NN, which extends in the longitudinal direction of the concrete element 1 inclined, which is why the profile bars 7 are driven into the ground 2 at a corresponding angle. Indicates the hole 5 - towards the Underground 2 seen - from the road side facing the concrete part 1 away, so the concrete element 1 is pulled by the profiled bars 7 in the ground in an impact and increases the normal force between the substrate 2 and the concrete part 1, whereby the frictional forces and thus the retention effect of the concrete protective wall according to the invention can be increased. It has proved to be suitable if the bore 5 with the normal plane NN has an angle in the range between approximately 10 ° and approximately 50 °, preferably in the range between approximately 15 ° and approximately 40 °, in particular in the range between approximately 20 ° and approximately 30 ° includes.

Im Falle eines Aufpralls werden die Betonelemente 1 entgegen der durch das Gewicht der Betonelemente 1 und dem durch die Materialkombination von Betonelement 1 und Untergrund 2 gegebenen Reibungskoeffizienten sich ergebenden Reibungskraft verschoben bis ein allenfalls zwischen den Profilstäben 7 und den Wänden der diese aufnehmenden Bohrungen 5 vorhandenes Spiel aufgebraucht ist. Dabei wird ein Teil der Aufprallenergie abgebaut.In the event of an impact, the concrete elements 1 against the by the weight of the concrete elements 1 and given by the combination of material concrete element 1 and 2 friction coefficient friction force displaced to a possibly between the profile bars 7 and the walls of these receiving holes 5 existing game is used up. In the process, part of the impact energy is dissipated.

Übersteigt die Aufprallenergie die sich aus Reibungskraft und Verschiebeweg ergebende Energie, so beginnen sich die Profilstäbe 7 zu verformen, wobei die dazu erforderliche Verformungsarbeit die Aufprallenergie weiter absorbiert.If the impact energy exceeds the energy resulting from the frictional force and the displacement, the profile rods 7 begin to deform, the deformation work required for this purpose further absorbing the impact energy.

Gleichzeitig werden die Profilstäbe 7 bei entsprechend hohen Aufprallenergien im Untergrund 2 in Richtung von der Fahrbahn 8 weg verschoben. Dabei bilden sich Keile 9 aus Untergrundmaterial aus, die sich gegen das sie umgebende Material des Untergrundes 2 verschieben. Dabei müssen entsprechend hohe Reibungskräfte überwunden werden, die die verbleibende Aufprallenergie über einen relativ kurzen Weg aufzehrt. Dabei wird der Untergrund 2 von den Profilstäben 7 durchpflügt.At the same time, the profile bars 7 are displaced in the direction of the roadway 8 at correspondingly high impact energies in the ground 2. In this case, wedges 9 form from underground material, which move against the surrounding material of the substrate 2. In this case, correspondingly high frictional forces must be overcome, which consumes the remaining impact energy over a relatively short distance. In this case, the substrate 2 is plowed by the profile bars 7.

Im Falle der Ausführungsform nach der Fig. 2 tritt dieser Effekt früher ein, als dies bei senkrecht zur Aufstandsfläche verlaufenden Profilstäben der Fall wäre.In the case of the embodiment according to the Fig. 2 This effect occurs earlier than would be the case with perpendicular to the footprint extending profile bars.

Sind die Profilstäbe 7 an beiden Seiten des Wandteils 4 der Betonelemente 1 in einer gemeinsamen Querebene angeordnet, so ist der zweite Profilstab in Hinblick auf die Ausbildung des erwähnten Keiles 9 des Untergrundmaterials nur eingeschränkt wirksam. Bei einer versetzten Anordnung der Profilstäbe an beiden Seiten des Wandteils 4 sind dagegen die Profilstäbe an beiden Seiten im wesentlichen gleich wirksam.If the profile bars 7 are arranged on both sides of the wall part 4 of the concrete elements 1 in a common transverse plane, then the second profile bar has only a limited effect with regard to the formation of the mentioned wedge 9 of the background material. In a staggered arrangement of the profile bars on both sides of the wall part 4, however, the profile bars on both sides are substantially the same effect.

Eine Anpassung an die jeweiligen Erfordernisse kann daher durch die Abstände der Profilstäbe 7 entlang der Betonschutzwand, durch deren Einrammtiefe und deren Profil, sowie deren Einrammwinkel gegen eine auf die Aufstandsfläche 6 errichteten Normalebene N-N erfolgen. Dabei kann in den meisten Anwendungen das Verhältnis der Länge des in den Untergrund getriebenen Abschnittes der Profilstäbe 7 zur Höhe der Betonteile 1 im Bereich zwischen etwa 0,2 und etwa 1,0, bevorzugt im Bereich zwischen etwa 0,3 und etwa 0,9, insbesondere im Bereich zwischen etwa 0,4 und etwa 0,8, gewählt werden.An adaptation to the respective requirements can therefore by the distances of the profiled bars 7 along the concrete protective wall, by their Einrammtiefe and their profile, and their Einrammwinkel against a built on the footprint 6 normal plane NN respectively. Here, in most applications, the ratio of the length of the subsurface-driven portion of the profile bars 7 to the height of the concrete parts 1 in the range between about 0.2 and about 1.0, preferably in the range between about 0.3 and about 0.9 , in particular in the range between about 0.4 and about 0.8, are selected.

Für die Wirksamkeit einer erfindungsgemäßen Betonschutzwand ist es u.a. wesentlich, dass die zur Verankerung der Betonelemente 1 verwendeten Profilstäbe 7 eine entsprechend hohe Auszugskraft aufweisen. In den Fig. 3 bis 11 sind Beispiele für erfindungsgemäße Profilstäbe 7 zur Verankerung von Betonelementen 1 für eine Betonschutzwand gemäß der Erfindung dargestellt.For the effectiveness of a concrete protective wall according to the invention it is, inter alia, essential that the profile bars 7 used for anchoring the concrete elements 1 have a correspondingly high pull-out force. In the Fig. 3 to 11 Examples of inventive profile bars 7 for anchoring concrete elements 1 for a concrete protective wall according to the invention are shown.

Ein Profilstab 7 nach den Fig. 3 und 4 ist aus einem Rohr 20 gebildet, das an einem Ende mit einer Deckplatte 21 verbunden ist und an seinem zweiten Ende schräg abgeschnitten ist. Zur Erhöhung der Auszugskraft sind bei dieser Ausführungsform eines Profilstabes Querbohrungen 22, 23 in zueinander senkrecht stehenden Richtungen vorgesehen. Dabei bilden sich beim Einrammen eines solchen Profilstabes 7 in den Untergrund über die Querbohrungen 22, 23 Brücken aus, durch die der Profilstab einem Herausziehen aus dem Untergrund einen erhöhten Widerstand entgegensetzt.A profile bar 7 after the 3 and 4 is formed of a tube 20 which is connected at one end to a cover plate 21 and is cut off obliquely at its second end. To increase the pull-out force transverse bores 22, 23 are provided in mutually perpendicular directions in this embodiment of a profile bar. In this case, during the ramming of such a profile bar 7 in the ground on the transverse bores 22, 23 bridges, through which the profile bar opposes an extraction from the ground increased resistance.

Ein Profilstab 7 nach den Fig. 5 und 6 ist aus einem im Querschnitt rechteckigen Profilrohr 24 gebildet, das an seinem einen Ende mit einer Deckplatte 21 verbunden und an seinem zweiten Ende schräg abgeschnitten ist, um das Einrammen des Profilstabes 7 in den Untergrund zu erleichtern. Bei dieser Ausführungsform ist der Profilstab 7 mit von den Längs- und Schmalseiten des Profilrohres 24 seitlich abstehenden V-förmigen und nach oben zu, bzw. der Deckplatte 21 zu offenen Querstreben 24 versehen. Diese Querstreben 24 verursachen einen sehr erheblichen Unterschied des Widerstandes, den der Profilstab beim Einrammen und beim Herausziehen einer Längsbewegung gegenüber dem Untergrund entgegensetzt. Dabei ergibt sich ein sehr wesentlich größerer Widerstand beim Herausziehen des Profilstabes 7 aus dem Untergrund als beim Einrammen in denselben. Außerdem erhöhen die Querstreben 24 auch den Widerstand beim Durchpflügen des Untergrundes im Falle eines Anpralls eines Fahrzeuges an die erfindungsgemäße Betonschutzwand und somit die Effizienz derselben.A profile bar 7 after the FIGS. 5 and 6 is formed of a rectangular cross-section profile tube 24 which is connected at its one end to a cover plate 21 and cut obliquely at its second end to facilitate the ramming of the profile bar 7 in the ground. In this embodiment, the profile bar 7 is provided with from the longitudinal and narrow sides of the profile tube 24 laterally projecting V-shaped and upwards to, or the cover plate 21 to open transverse struts 24. These cross struts 24 cause a very significant difference in resistance that the profile bar opposes when driving in and pulling out a longitudinal movement relative to the ground. This results in a much greater resistance when pulling out of the profile bar 7 from the ground than during ramming in the same. In addition, the cross struts 24 also increase the resistance when plowing through the ground in the event of a collision of a vehicle to the concrete protective wall according to the invention and thus the efficiency of the same.

Bei der Ausführungsform eines Profilstabes 7 nach der Fig. 7 ist dieser aus einem Rohr 20 gebildet, das an einem Ende mit einer Deckplatte 21 verbunden und an seinem zweiten Ende schräg abgeschnitten ist. Bei dieser Ausführungsform sind zur Erhöhung der Ausziehkraft Dellen 26 vorgesehen, die den Ausziehwiderstand erhöhen.In the embodiment of a profile bar 7 after the Fig. 7 this is formed from a tube 20 which is connected at one end to a cover plate 21 and cut obliquely at its second end. In this embodiment, dents 26 are provided to increase the pull-out force, which increase the pull-out resistance.

Die Ausführungsform eines Profilstabes 7 nach der Fig. 8 unterscheidet sich von jener nach der Fig. 7 dadurch, dass statt der Dellen 27 in der unteren Hälfte des Profilstabes 7 nach außen abstehende Rippen 27 vorgesehen sind, die nach oben zu, bzw. zur Deckplatte 21 hin schräg geneigt verlaufen.The embodiment of a profile bar 7 after the Fig. 8 different from that after the Fig. 7 in that instead of the dents 27 in the lower half of the profile bar 7 outwardly projecting ribs 27 are provided, which extend upwards to, or to the cover plate 21 obliquely inclined.

Bei der Ausführungsform nach der Fig. 9 ist der Profilstab 7 durch ein 1-Profil gebildet. Dabei ist an einem Ende des Profilstabes 7 eine Deckplatte 21 angebracht und im Bereich des zweiten Endes ist dieses I-Profil schräg abgeschnitten, um das Einrammen in den Untergrund zu erleichtern. Um den Ausziehwiderstand zu erhöhen, sind die Flansche 29 des 1-Profils 28 mit schräg gegen das schräge Ende des Profilstabes 7 verlaufende randoffene Kerben 30 versehen, wobei die zwischen den Kerben 30 verbleibenden Flanschbereiche ähnlich den Zähnen eines Sägeblattes gegeneinander verschränkt sein können. Durch diese Kerben 30 setzt ein solcher Profilstab dem Herausziehen aus dem Untergrund einen sehr erheblichen Widerstand entgegen.In the embodiment of the Fig. 9 the profile bar 7 is formed by a 1-profile. In this case, a cover plate 21 is attached to one end of the profile bar 7 and in the region of the second end of this I-profile is cut off obliquely in order to facilitate the ramming into the ground. In order to increase the Ausziehwiderstand, the flanges 29 of the 1-profile 28 are provided with obliquely against the oblique end of the profile bar 7 extending edge-open notches 30, wherein the remaining between the notches 30 flange areas similar to the teeth of a saw blade can be folded against each other. By means of these notches 30, such a profile bar sets a very considerable resistance to being pulled out of the ground.

Bei der Ausführungsform nach der Fig. 10 und 11 ist der Profilstab 7 ebenfalls durch ein I-Profil 28 gebildet, wobei an einem Ende eine Deckplatte 21 angebracht und das zweite Ende schräg abgeschnitten ist. Dabei sind an dem Steg 31 des 1-Profils 28 Vorsprünge 32 angeschweißt, die sich zwischen den Flanschen 29 des Profils 28 erstrecken und schräg nach oben, bzw. zur Deckplatte 21 hin gerichtet sind. Durch diese Ausrichtung der Vorsprünge 32 ergibt sich ein sehr hoher Ausziehwiderstand.In the embodiment of the 10 and 11 the profile bar 7 is also formed by an I-profile 28, wherein at one end a cover plate 21 mounted and the second end is cut off obliquely. In this case, 28 projections 32 are welded to the web 31 of the 1-profile, which extend between the flanges 29 of the profile 28 and are directed obliquely upwards, or to the cover plate 21 out. This orientation of the projections 32 results in a very high extraction resistance.

Claims (14)

  1. A concrete barrier which is formed by prefabricated concrete parts (1) which stand upright on the ground (2) and comprise a base part (3) having a substantially planar contact surface (6) and from which a wall part (4) protrudes upwardly which is substantially narrower than the base part (3), and which concrete parts rest substantially on each other on the face side, with profile rods (7) penetrating bores (5) in the base parts (3) and being rammed into the ground, characterized in that in the base parts (3) the bores (5) penetrated by the profile rods (7) face away from a side of the concrete part (1) facing a roadway as seen in the direction towards the ground (2), and that the bores are inclined relative to a normal plane (N-N) established on the contact surface (6), which normal plane (N-N) extends in the longitudinal direction of the concrete part (1).
  2. A concrete barrier according to claim 1, characterized in that the bore (5) assumes an angle with the normal plane (N-N) at an angle in the range of between approx. 10° and approx. 50°, preferably in the range of between approx. 15° and approx. 40°, especially in the range of between approx. 20° and approx. 30°.
  3. A concrete barrier according to one of the claims 1 or 2, characterized in that the length of the section of the profile rods (7) driven into the ground is chosen depending on the nature of the ground (2) and the expected impact energies.
  4. A concrete barrier according to claim 1, characterized in that relative to the height of the concrete parts (I) the ratio of the length of the section of the profile rods (7) driven into the ground is in the range of between approx. 0.2 and approx. 1.0, preferably in the range of between approx. 0.3 and approx. 0.9, especially in the range of between approx. 0.4 and approx. 0.8.
  5. A concrete barrier according to one of the claims 1 to 4, characterized in that a defined free space is provided between the profile rods (7) and the walls of the optionally non-round bores (5) of the concrete parts (1) at least in the transverse direction of the base part (3), which free space determines a first path of displacement of the concrete part (1).
  6. A concrete barrier according to one of the claims 1 to 5, characterized in that the bores (5) are arranged offset with respect to each other on both sides of the wall part (4).
  7. A concrete barrier according to one of the claims 1 to 6, characterized in that the profile rods (7) are provided at least in sections with outwardly facing protrusions (25, 27, 32).
  8. A concrete barrier according to claim 7, characterized in that the profile rods (7) are provided with V-shaped, upwardly open transverse beams (25), with the profile rods (7) preferably having an I-shaped cross section or being arranged as a profiled tube.
  9. A concrete barrier according to one of the claims 1 to 6, characterized in that the profile rods (7) are formed by tubes (20) which are provided with indentations (26).
  10. A concrete barrier according to claim 7, characterized in that the profile rods (7) are provided with outwardly protruding ribs (27).
  11. A concrete barrier according to one of the claims 1 to 6, characterized in that the profile rods (7) are formed by tubes which are provided with transverse bores (22).
  12. A concrete barrier according to claim 7, characterized in that the profile rods (7) are formed by I-sections (28), and the flanges (29) are provided at least in part with notches (30) which preferably extend downwardly in an oblique manner, with the flange sections remaining between the notches (30) preferably being interconnected with one another.
  13. A concrete barrier according to claim 7, characterized in that the profile rods (7) are formed by I-sections (28) and projections (32) which extend between the flanges (29) are welded at least in part to the web (31) of the I-section (28).
  14. A concrete part for the arrangement of a concrete barrier according to one of the claims 1 to 11, comprising a base part (3) having a substantially planar contact surface (6) and from which a wall part (4) projects upwardly which is narrower than the base part (3), with the concrete part comprising bores (5) in the base part (3), which bores can be penetrated by profile rods (7) rammed into the ground, characterized in that in the base part (3) the bores (5) penetrated by the profile rods (7) face away from a side of the concrete part (1) facing a roadway as seen in the direction towards the ground (2), and that the bores are inclined relative to a normal plane (N-N) established on the contact surface (6), which normal plane (NN) extends in the longitudinal direction or the concrete part (1).
EP04450012A 2003-01-24 2004-01-19 Concrete protective wall Expired - Lifetime EP1441073B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT982003 2003-01-24
AT982003 2003-01-24
AT0208503A AT413832B (en) 2003-01-24 2003-12-23 Protective wall, flanking roads to absorb impact energy, is composed of concrete components resting on an angled foundation, with drillings through the foot of the base at an angle into the foundation for rods at the rear side
AT20852003 2003-12-23

Publications (3)

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EP1441073A2 EP1441073A2 (en) 2004-07-28
EP1441073A3 EP1441073A3 (en) 2005-02-02
EP1441073B1 true EP1441073B1 (en) 2011-06-15

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2910028B1 (en) * 2006-12-19 2011-04-01 Ims Rn Ingenierie Des Mouvements De Sol Et Des Risques Naturels PROTECTIVE WORK TO INTERRUPT FREE MOVEMENT OF MOBILE MASSES.
DE202017003301U1 (en) 2017-06-24 2017-07-26 ART Engineering GmbH guardrail protector
IT201700101463A1 (en) * 2017-09-11 2019-03-11 Ticopter Sa ANCHOR FOR ROAD BARRIER
IT201800010855A1 (en) * 2018-12-06 2020-06-06 Tsl Engineering Soc A Responsabilita Limitata DEVICE FOR ANCHORING TO THE GROUND FOR ROAD SAFETY BARRIERS IN CONCRETE
AT525304A1 (en) * 2021-07-22 2023-02-15 Delta Bloc Int Gmbh VEHICLE RESTRAINT SYSTEM WITH A CONCRETE BARRIER

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB821894A (en) * 1956-05-14 1959-10-14 Henry Such Smith Roadway guard rail barrier
DE1292156B (en) 1956-05-14 1969-04-10 Smith Henry Such Guiding device made of plates for roadways
AT388006B (en) 1986-08-07 1989-04-25 Schuster Franz Safety guiding device for delimiting traffic areas, in particular roads and carriageways
AT393146B (en) 1989-04-14 1991-08-26 Universale Bau Aktiengesellsch Concrete base for producing a barrier means fabricated from concrete bases arranged in a row with their end faces adjacent to one another
US5302047A (en) * 1991-04-25 1994-04-12 Texas A&M University System Pedestrian safety barrier
IT1302420B1 (en) * 1998-08-05 2000-09-05 Autostrade Concess Const DEVICES FOR THE CALIBRATION DECELERATION OF URTANT VEHICLES FOR NEW JERSEY PROFILE SAFETY BARRIERS WITH ANCHORING
US20030068199A1 (en) * 2001-10-09 2003-04-10 Ulislam Mohammed A. System for anchoring concrete safety barriers on bridges and roads

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AT413832B (en) 2006-06-15
ATA20852003A (en) 2005-10-15
EP1441073A3 (en) 2005-02-02
ATE513086T1 (en) 2011-07-15
EP1441073A2 (en) 2004-07-28

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