EP1452666B1 - Concrete protection wall - Google Patents
Concrete protection wall Download PDFInfo
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- EP1452666B1 EP1452666B1 EP20040001752 EP04001752A EP1452666B1 EP 1452666 B1 EP1452666 B1 EP 1452666B1 EP 20040001752 EP20040001752 EP 20040001752 EP 04001752 A EP04001752 A EP 04001752A EP 1452666 B1 EP1452666 B1 EP 1452666B1
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- European Patent Office
- Prior art keywords
- concrete
- protection wall
- wall according
- concrete protection
- concrete body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- 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.
- Such concrete barriers are rigid guards with a special profile shape, which are usually made of concrete. Preferred is the production with a slipform paver.
- the concrete protective walls can be used instead of steel safety barriers.
- Known is a so-called "New Jersey profile" ( Fig. 8 ), in which the concrete body has a base part with vertical side walls and a height of about 80 mm, followed by a transition section with an angle of inclination to the vertical of about 35 °. At this transition section is followed by a wall part, which tapers conically upwards at an angle of approximately 6 ° to the vertical.
- the total height of this known concrete protective wall is 800 mm.
- DIN EN 1317 To determine the protective properties, there is a standard for testing restraint systems on roads by means of impact tests (DIN EN 1317).
- the aforementioned known concrete protective wall meets the criteria of the containment level H2.
- step protection wall ( Fig. 9 ), which is slightly narrower (540 mm) and slightly higher (900 mm) than the New Jersey bulkhead, but only allows the containment level H2.
- the disadvantage is at This prior art that the concrete barrier is too high, thereby greatly obstructing the view.
- Another disadvantage of this level is that the crossing is unnecessarily difficult for staff of the road maintenance or rescue personnel, but also the escape route for victims of accidents are deteriorated.
- this height of the step-protection wall is suitable to produce a tunnel effect in a driver, especially in a two-sided arrangement, which increases the risk of accidents.
- a concrete protective wall is known in which longitudinal reinforcements are provided in the concrete body.
- These longitudinal reinforcements are part of cage structures that can be anchored in the ground with anchoring means, wherein the concrete protective wall is produced after the creation of the cages in a Gleitschalungsvorgang.
- the invention is therefore an object of the invention to provide a concrete barrier of the type mentioned above, which meets not only the containment level H4b, but also an ASI value ⁇ 1.4 according to DIN EN1317 at a reduced cost of materials and at the same time servants of the road maintenance, Gottopfern or rescue personnel offers a higher security.
- the invention advantageously provides that the total height of the concrete body is 950 to 1050 mm, preferably 1000 mm, that the ratio of the contact width of the base part to the total height of the concrete body is more than 0.6, preferably 0.7, wherein the Cross-sectional area of the concrete body is less than 0.4 m 2 , preferably 0.33 to 0.39 m 2 .
- the concrete protective wall according to the invention fulfills the high requirements according to containment level H4b, as well as an ASI value ⁇ 1.4 for the same effective range W according to DIN standard DIN EN 1317, despite the reduction in height with simultaneous slight broadening of the base part and simultaneous reduction of the cross-sectional area.
- the reduced height ensures that the visual obstruction is significantly reduced for car drivers, while at the same time a crossing of the concrete wall in case of emergency or for maintenance services of the road maintenance is simplified.
- the reduction of the cross-sectional area leads to a saving of approx. 70 t of concrete per km.
- the concrete body may preferably have a plurality of longitudinal reinforcements. These longitudinal reinforcements consist for example of metal rods with a diameter of 10 to 15 mm.
- an intermediate layer preferably a plastic film may be arranged between the base part and the road surface.
- This intermediate layer prevents gearing or hooking of the concrete protective wall to the substrate, so that essentially the inertia of the mass of the concrete protective wall dampens the impact of a vehicle and not an anchorage of the concrete body with the road surface. This reduces the maximum deceleration impacting occupants of an accident vehicle.
- a preferably circular in cross-section is arranged in the longitudinal direction continuously extending cavity.
- the preferred circular cross-sectional shape leads to a reduction in the cross-sectional area of the concrete body without reducing the required strength. In this way, there is a further significant material savings, without affecting the safety-relevant properties of the concrete protective wall.
- the cavity has in cross section a diameter of 150 to 250 mm, preferably 200 mm. This leads to an additional material saving of 70 t concrete per km.
- the concrete body In the longitudinal direction of the concrete body can be arranged at a predetermined distance vertically extending joints to reduce the stiffness in the longitudinal direction.
- the joints are preferably filled with an elastic material.
- the base part In the base part are arranged at predetermined intervals, transverse to the longitudinal direction, downwardly open drainage channels, which allow drainage of the water from one side of the road to the other.
- the concrete body may have vertically superimposed steps at predetermined lateral intervals as a crossing aids. In this way, it is easier to exceed the concrete safety barrier in emergencies or for road maintenance work.
- the cavity in the transition section and / or in the base part may be delimited by a tubular profile part.
- This tube profile part can contribute to a considerable increase in the strength values of the concrete protective wall.
- the longitudinal reinforcements in particular in the region of the wall part, consist of tubes.
- the wall part may have a structured, preferably corrugated surface, which may for example consist of 3 to 5 sheets.
- the corrugated surface also leads to a saving of material.
- the larger surface of the wall part leads to a higher friction in the event of a collision of a vehicle and thus to an increased energy dissipation.
- the easily deformable front of a vehicle can adapt to the surface cross-sectional profile of the wall part and thus better guide the vehicle in the desired direction along the protective wall.
- the structured, in particular corrugated surface reduces the risk of rising of a colliding against the concrete barrier vehicle and thus prevents a rollover of the vehicle.
- the base part may have a rectangular cross section with a height of at least 100 mm. In conjunction with an increased contact width of the base part, such a base part lowers the center of gravity of the concrete body and thereby reduces the risk of tipping the concrete protective wall.
- the concrete body has on its underside a longitudinally extending channel, which is in engagement with a projection of a foundation plate.
- a concrete protective wall can be used where only a limited displacement of the concrete protective wall in the event of an impact is permitted.
- a damping material may be arranged, which may for example consist of styrofoam or other plastic material.
- the foundation plate can be completely or partially embedded in the road surface.
- Fig. 1 shows a cross section through a one-piece concrete protective wall with a concrete body 1, with a base part 4, a transition section 6 and a conically upwardly tapered wall portion 8.
- the base part 4 has vertical side walls 5, wherein the base part 4 has a rectangular cross-sectional profile shape having.
- the contact width of the base part 4 is more than about 600 mm, preferably about 700 mm at a height of the base part of about. 100 mm.
- the height of the base part may vary due to unevenness of the road surface 2.
- the adjoining the base part 4 upwards transition section 6 has a rounded transition with a transition radius of for example 250 mm to the wall part 8, wherein the inclination angle of the surface of the transition section 6 to the vertical about 35 °.
- the inclination angle of the wall part 8 is about 6 ° to the vertical.
- the width of the wall part 8 at the upper end is about 210 mm, the total height of the concrete body 1 is a maximum of about 1000 mm.
- the cross-sectional area of the concrete body 1 is in the embodiment of Fig. 10.384 m 2. Consequently, this profile shape leads to a material saving despite compliance with the retention level H4b according to DIN EN 1317 while maintaining an ASI value ⁇ 1.4.
- the concrete protective wall can be placed directly on a road surface 2.
- an intermediate layer 14, preferably made of plastic, may be provided between the base part 4 and the road surface 2.
- Fig. 2 shows the arrangement of a longitudinally extending cavity 18 having a circular cross-section.
- This preferably arranged in the transition section 6 cavity 18 is a further reduction of the cross-sectional area of the concrete body 1 to 0.352 m 2 possible without affecting the strength properties of the concrete protective wall negative.
- How out Fig. 2 can be provided at predetermined intervals in the longitudinal direction of parting lines 27 of a width of for example 10 to 30 mm, which are preferably filled with an elastic material 29.
- These joints 27 lead to a reduction in the rigidity of the concrete protective wall in the longitudinal direction.
- the mutual distance of the joints 27 in the longitudinal direction can be adapted to local requirements.
- Fig. 2 shows the separation joints 27 in the cutting plane.
- Fig. 3 shows an embodiment in which instead of the longitudinal reinforcements 10 tube profiles 24 are used as longitudinal reinforcements.
- Both the longitudinal reinforcements 10 and the tubular profiles 24 are preferably made of metal, but may also consist of a different material, for example plastic, in particular carbon fiber reinforced plastic.
- the cavity 18 may be bounded by a tube profile section 22 adapted to the cavity cross-section.
- this pipe section part 22 may be made of metal or plastic.
- the cavity 18 with or without tube profile part 22 can also be used for drainage functions or for the arrangement of electrical lines.
- the cavity is filled with foam.
- drainage channel 26 In the base part 4 a transverse to the concrete protective wall drainage channel 26 is shown, which allows drainage of water from one side of the concrete protective wall to the other.
- Such drainage channels 26 may be arranged at a freely selectable distance according to local requirements.
- the cavity 18 with or without tube profile part 22 can also be arranged deeper into the region of the base part 4 or even higher into the region of the wall part 8.
- steps 25 may be embedded as a transitional aids.
- Fig. 4 shows a further embodiment of a concrete protective wall whose wall part 8 has a corrugated surface.
- the corrugated surface is advantageous in order to prevent in the event of an impact a vehicle getting on and its possible rollover.
- the cross-sectional area is about 0.361 m 2 .
- Fig. 5 shows an alternative embodiment in which the concrete protective wall rests on a longitudinally continuously extending base plate 28.
- the lower edge of the concrete body 1 is located on the foundation plate 28 so that it is substantially flush with the road surface 2 and with the intermediate layer 14.
- the foundation plate 28 sunk into the roadway sunk.
- the foundation plate 28 has a projection 30 which engages a longitudinally extending channel 34 at the bottom of the concrete body 1. Between the projection 30 and the channel 34 may be a damping material 32, for example polystyrene material, arranged.
- the cross-sectional profile shape of the projection 30 is adapted to the cross-sectional profile shape of the channel 34.
- Fig. 6 shows an embodiment in which the profile of the concrete body 1 is divided in its vertical axis of symmetry. In this way it is possible to arrange the two halves of the concrete body 1a, 1b at a distance from each other and leave the gap open, or to fill up with soil 38, for example, to provide a vegetation 40 on the upper edge of the concrete protective wall.
- the reinforcements 10 are provided in each concrete body 1a, 1b.
- the gap between the halves of the concrete body 1a, 1b may also be filled with a damping material for absorbing energy, for example a clay granulate.
- Fig. 7 shows an embodiment with corrugated surface of the wall part. Due to the profile contour at the upper end of the wall part 8 (as well as in the embodiment of Fig. 4 ) It is possible to place signs, beacons or light panels 42 with an example form-fitting clip-on clamp connection 44 on the concrete protective wall.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Description
Die Erfindung betrifft eine Beton-Schutzwand nach dem Oberbegriff des Anspruchs 1.The invention relates to a concrete protective wall according to the preamble of
Derartige Beton-Schutzwände sind starre Schutzeinrichtungen mit einer besonderen Profilform, die in der Regel aus Beton hergestellt werden. Bevorzugt ist die Fertigung mit einem Gleitschalungsfertiger.Such concrete barriers are rigid guards with a special profile shape, which are usually made of concrete. Preferred is the production with a slipform paver.
Die Beton-Schutzwände können anstelle von Stahlschutzplanken eingesetzt werden. Bekannt ist ein sogenanntes "New Jersey-Profil" (
Es ist ferner eine Step-Schutzwand (
Bedingt durch die große Höhe und die relativ schmale Basisbreite besteht die Gefahr, dass Kippmomente nicht ausreichend abgefangen werden können. Außerdem ist diese Höhe der Step-Schutzwand geeignet, einen Tunnel-Effekt bei einem Fahrzeugführer, insbesondere bei beidseitiger Anordnung zu erzeugen, der die Unfallgefahr erhöht.Due to the large height and the relatively narrow base width there is a risk that tilting moments can not be sufficiently absorbed. In addition, this height of the step-protection wall is suitable to produce a tunnel effect in a driver, especially in a two-sided arrangement, which increases the risk of accidents.
Die Querschnittsfläche des Profils weist eine zu große Fläche auf, so dass die Herstellungskosten aufgrund des hohen Materialaufwandes sehr hoch sind. Diese bekannte Betonschutzwand erreicht zwar die Aufhaltestufe H4b, nicht jedoch den in der gleichen Norm normierten ASI-Wert (Acceleration Severity Index).The cross-sectional area of the profile has too large an area, so that the manufacturing costs are very high due to the high cost of materials. Although this known concrete protective wall reaches the H4b containment level, it does not achieve the ASI value (Acceleration Severity Index) normalized in the same standard.
Aus der
Diese Längsbewehrungen sind Bestandteil von Käfigkonstruktionen, die im Boden mit Verankerungsmitteln verankert werden können, wobei die Beton-Schutzwand nach dem Erstellen der Käfige in einem Gleitschalungsvorgang hergestellt wird.These longitudinal reinforcements are part of cage structures that can be anchored in the ground with anchoring means, wherein the concrete protective wall is produced after the creation of the cages in a Gleitschalungsvorgang.
Auch aus der
Der Erfindung liegt demzufolge die Aufgabe zugrunde, eine Beton-Schutzwand der eingangs genannten Art zu schaffen, die bei einem verringertem Materialaufwand nicht nur die Aufhaltestufe H4b, sondern auch einen ASI-Wert ≤ 1,4 gemäß DIN EN1317 erfüllt und zugleich Bediensteten der Straßenmeisterei, Unfallopfern oder Rettungspersonal eine höhere Sicherheit bietet.The invention is therefore an object of the invention to provide a concrete barrier of the type mentioned above, which meets not only the containment level H4b, but also an ASI value ≤ 1.4 according to DIN EN1317 at a reduced cost of materials and at the same time servants of the road maintenance, Unfallopfern or rescue personnel offers a higher security.
Zur Lösung dieser Aufgabe dienen die Merkmale des Anspruchs 1.To solve this problem serve the features of
Die Erfindung sieht in vorteilhafter Weise vor, dass die Gesamthöhe des Betonkörpers 950 bis 1050 mm, vorzugsweise 1000 mm beträgt, dass das Verhältnis der Aufstandsbreite des Sockelteils zu der Gesamthöhe des Betonkörpers mehr als 0,6, vorzugsweise 0,7, beträgt, wobei die Querschnittsfläche des Betonkörpers weniger als 0,4 m2, vorzugsweise 0,33 bis 0,39 m2, beträgt.The invention advantageously provides that the total height of the concrete body is 950 to 1050 mm, preferably 1000 mm, that the ratio of the contact width of the base part to the total height of the concrete body is more than 0.6, preferably 0.7, wherein the Cross-sectional area of the concrete body is less than 0.4 m 2 , preferably 0.33 to 0.39 m 2 .
Die erfindungsgemäße Beton-Schutzwand erfüllt trotz der Verringerung der Höhe bei gleichzeitiger geringfügiger Verbreiterung des Sockelteils und bei gleichzeitiger Verringerung der Querschnittsfläche die hohen Anforderungen gemäß Aufhaltestufe H4b, sowie einen ASI-Wert ≤ 1,4 bei gleichem Wirkungsbereich W gemäß DIN Norm DIN EN 1317.The concrete protective wall according to the invention fulfills the high requirements according to containment level H4b, as well as an ASI value ≤ 1.4 for the same effective range W according to DIN standard DIN EN 1317, despite the reduction in height with simultaneous slight broadening of the base part and simultaneous reduction of the cross-sectional area.
Durch die verringerte Höhe wird erreicht, dass die Sichtbehinderung für PKW-Fahrer erheblich reduziert wird, wobei gleichzeitig eine Überquerung der Beton-Schutzwand in Notfällen oder für Wartungsdienste der Straßenmeisterei vereinfacht ist. Die Verringerung der Querschnittsfläche führt zu einer Ersparnis von ca. 70 t Beton pro km.The reduced height ensures that the visual obstruction is significantly reduced for car drivers, while at the same time a crossing of the concrete wall in case of emergency or for maintenance services of the road maintenance is simplified. The reduction of the cross-sectional area leads to a saving of approx. 70 t of concrete per km.
Der Betonkörper kann vorzugsweise mehrere Längsbewehrungen aufweisen. Diese Längsbewehrungen bestehen beispielsweise aus Metallstangen mit einem Durchmesser von 10 bis 15 mm.The concrete body may preferably have a plurality of longitudinal reinforcements. These longitudinal reinforcements consist for example of metal rods with a diameter of 10 to 15 mm.
Zwischen dem Sockelteil und der Straßenoberfläche kann eine Zwischenlage, vorzugsweise eine Kunststofffolie, angeordnet sein. Diese Zwischenlage verhindert ein Verzahnen oder Verhaken der Beton-Schutzwand mit dem Untergrund, so dass im wesentlichen die Trägheit der Masse der Beton-Schutzwand den Aufprall eines Fahrzeuges dämpft und nicht eine Verankerung des Betonkörpers mit der Straßenoberfläche. Dadurch wird die maximale Verzögerung, die auf Insassen eines Unfallfahrzeuges einwirken verringert.Between the base part and the road surface, an intermediate layer, preferably a plastic film may be arranged. This intermediate layer prevents gearing or hooking of the concrete protective wall to the substrate, so that essentially the inertia of the mass of the concrete protective wall dampens the impact of a vehicle and not an anchorage of the concrete body with the road surface. This reduces the maximum deceleration impacting occupants of an accident vehicle.
Bei einem bevorzugten Ausführungsbeispiel ist vorgesehen, dass im Bereich des Übergangsabschnittes ein vorzugsweise im Querschnitt kreisförmiger, sich in Längsrichtung kontinuierlich erstreckender Hohlraum angeordnet ist. Insbesondere die bevorzugte kreisförmige Querschnittsform führt ohne Verringerung der erforderlichen Festigkeit zu einer Reduktion der Querschnittsfläche des Betonkörpers. Auf diese Weise ergibt sich eine weitere erhebliche Materialeinsparung, ohne die sicherheitsrelevanten Eigenschaften der Beton-Schutzwand zu beeinträchtigen.In a preferred embodiment it is provided that in the region of the transition section, a preferably circular in cross-section, is arranged in the longitudinal direction continuously extending cavity. In particular, the preferred circular cross-sectional shape leads to a reduction in the cross-sectional area of the concrete body without reducing the required strength. In this way, there is a further significant material savings, without affecting the safety-relevant properties of the concrete protective wall.
Der Hohlraum weist im Querschnitt einen Durchmesser von 150 bis 250 mm, vorzugsweise 200 mm, auf. Dies führt zu einer zusätzlichen Materialersparnis von 70 t Beton pro km.The cavity has in cross section a diameter of 150 to 250 mm, preferably 200 mm. This leads to an additional material saving of 70 t concrete per km.
In Längsrichtung des Betonkörpers können in einem vorbestimmten Abstand vertikal verlaufende Trennfugen zur Verminderung der Steifigkeit in Längsrichtung angeordnet sein.In the longitudinal direction of the concrete body can be arranged at a predetermined distance vertically extending joints to reduce the stiffness in the longitudinal direction.
Dabei sind die Trennfugen vorzugsweise mit einem elastischen Material ausgefüllt.The joints are preferably filled with an elastic material.
Im Sockelteil sind in vorgegebenen Abständen, quer zur Längsrichtung verlaufende, nach unten offene Entwässerungsrinnen angeordnet, die ein Ablaufen des Wassers von einer Fahrbahnseite auf die andere ermöglichen.In the base part are arranged at predetermined intervals, transverse to the longitudinal direction, downwardly open drainage channels, which allow drainage of the water from one side of the road to the other.
Der Betonkörper kann in vorgegebenen seitlichen Abständen vertikal übereinanderliegende Stufen als Überstiegshilfen aufweist. Auf diese Weise wird ein Übersteigen der Beton-Schutzwand in Notfällen oder für Tätigkeiten der Straßenmeisterei erleichtert.The concrete body may have vertically superimposed steps at predetermined lateral intervals as a crossing aids. In this way, it is easier to exceed the concrete safety barrier in emergencies or for road maintenance work.
Der Hohlraum im Übergangsabschnitt und/oder im Sockelteil kann von einem Rohrprofilteil begrenzt sein. Dieses Rohrprofilteil kann zu einer erheblichen Erhöhung der Festigkeitswerte der Beton-Schutzwand beitragen.The cavity in the transition section and / or in the base part may be delimited by a tubular profile part. This tube profile part can contribute to a considerable increase in the strength values of the concrete protective wall.
Alternativ kann auch vorgesehen sein, dass die Längsbewehrungen insbesondere im Bereich des Wandteils aus Rohren bestehen.Alternatively, it can also be provided that the longitudinal reinforcements, in particular in the region of the wall part, consist of tubes.
Der Wandteil kann eine strukturierte, vorzugsweise gewellte Oberfläche aufweisen, die beispielsweise aus 3 bis 5 Bögen bestehen kann. Die gewellte Oberfläche führt ebenfalls zu einer Materialersparnis. Die größere Oberfläche des Wandteils führt zu einer höheren Reibung im Falle eines Aufpralls eines Fahrzeugs und damit zu einem erhöhten Energieabbau. Dabei kann sich die leicht deformierbare Front eines Fahrzeugs an das Oberflächen-Querschnittsprofil des Wandteils anpassen und auf diese Weise das Fahrzeug besser in die gewünschte Richtung entlang der Schutzwand leiten.The wall part may have a structured, preferably corrugated surface, which may for example consist of 3 to 5 sheets. The corrugated surface also leads to a saving of material. The larger surface of the wall part leads to a higher friction in the event of a collision of a vehicle and thus to an increased energy dissipation. In this case, the easily deformable front of a vehicle can adapt to the surface cross-sectional profile of the wall part and thus better guide the vehicle in the desired direction along the protective wall.
Insbesondere verringert die strukturierte, insbesondere gewellte Oberfläche die Gefahr des Aufsteigens eines gegen die Betonschutzwand aufprallenden Fahrzeuges und verhindert damit einen Überschlag des Fahrzeugs.In particular, the structured, in particular corrugated surface reduces the risk of rising of a colliding against the concrete barrier vehicle and thus prevents a rollover of the vehicle.
Der Sockelteil kann einen rechteckigen Querschnitt mit einer Höhe von mindestens 100 mm aufweisen. In Verbindung mit einer vergrößerten Aufstandsbreite des Sockelteils erniedrigt ein derartiges Sockelteil die Schwerpunktlage des Betonkörpers und verringert dadurch die Kippgefahr der Beton-Schutzwand.The base part may have a rectangular cross section with a height of at least 100 mm. In conjunction with an increased contact width of the base part, such a base part lowers the center of gravity of the concrete body and thereby reduces the risk of tipping the concrete protective wall.
Nach einer Alternative ist vorgesehen, dass der Betonkörper an seiner Unterseite einen in Längsrichtung verlaufenden Kanal aufweist, der mit einem Vorsprung einer Fundamentplatte im Eingriff ist. Eine derartige Beton-Schutzwand kann dort eingesetzt werden, wo nur eine begrenzte Verlagerung der Betonschutzwand im Falle eines Aufpralls zulässig ist.According to an alternative, it is provided that the concrete body has on its underside a longitudinally extending channel, which is in engagement with a projection of a foundation plate. Such a concrete protective wall can be used where only a limited displacement of the concrete protective wall in the event of an impact is permitted.
Zwischen dem Kanal und dem Vorsprung kann ein Dämpfungsmaterial angeordnet sein, das beispielsweise aus Styropor oder einem anderen Kunststoffmaterial bestehen kann.Between the channel and the projection, a damping material may be arranged, which may for example consist of styrofoam or other plastic material.
Die Fundamentplatte kann in die Straßenoberfläche ganz oder teilweise eingelassen sein.The foundation plate can be completely or partially embedded in the road surface.
Im folgenden werden mehrere Ausführungsbeispiele der Erfindung unter Bezugnahme auf die Zeichnungen erläutert.In the following, several embodiments of the invention will be explained with reference to the drawings.
Es zeigen:
- Fig. 1
- ein erstes Ausführungsbeispiel der Erfindung,
- Fig. 2
- ein zweites Ausführungsbeispiel mit verringerter Querschnittsfläche,
- Fig. 3
- ein Ausführungsbeispiel mit Entwässerungsrinne, sowie mit rohrförmigen Bewehrungen,
- Fig.4
- ein Ausführungsbeispiel mit gewellter Oberfläche des Wandteils,
- Fig. 5
- ein alternatives Ausführungsbeispiel zum Aufsetzen auf eine Fundamentplatte,
- Fig. 6
- eine geteilte Beton-Schutzwand,
- Fig. 7
- ein alternatives Ausführungsbeispiel mit gewellter Oberfläche des Wandteils,
- Fig. 8
- die New Jersey-Schutzwand, und
- Fig. 9
- eine Step-Schutzwand.
- Fig. 1
- a first embodiment of the invention,
- Fig. 2
- a second embodiment with reduced cross-sectional area,
- Fig. 3
- an embodiment with drainage channel, and with tubular reinforcements,
- Figure 4
- an embodiment with corrugated surface of the wall part,
- Fig. 5
- an alternative embodiment for placing on a foundation plate,
- Fig. 6
- a split concrete protective wall,
- Fig. 7
- an alternative embodiment with corrugated surface of the wall part,
- Fig. 8
- the New Jersey bulkhead, and
- Fig. 9
- a step protection wall.
Der sich an den Sockelteil 4 nach oben anschließende Übergangsabschnitt 6 weist einen gerundeten Übergang mit einem Übergangsradius von beispielsweise 250 mm zum Wandteil 8 auf, wobei der Neigungswinkel der Oberfläche des Übergangsabschnitts 6 zur Senkrechten ca. 35° beträgt. Der Neigungswinkel des Wandteils 8 beträgt zur Senkrechten ca. 6°. Die Breite des Wandteils 8 am oberen Ende beträgt ca. 210 mm, wobei die Gesamthöhe des Betonkörpers 1 maximal ca. 1000 mm beträgt. Die Querschnittsfläche des Betonkörpers 1 beträgt im Ausführungsbeispiel der Fig. 10,384 m2. Diese Profilform führt demzufolge zu einer Materialersparnis trotz Einhaltung der Aufhaltestufe H4b nach DIN EN 1317 bei gleichzeitiger Einhaltung eines ASI-Wertes ≤ 1.4.The adjoining the
Die Beton-Schutzwand kann direkt auf eine Straßenoberfläche 2 aufgesetzt werden. Alternativ kann eine Zwischenlage 14 vorzugsweise aus Kunststoff zwischen dem Sockelteil 4 und der Straßenoberfläche 2 vorgesehen sein.The concrete protective wall can be placed directly on a
Das Ausführungsbeispiel der
In ähnlicher Weise kann der Hohlraum 18 von einem dem Hohlraumquerschnitt angepassten Rohrprofilteil 22 begrenzt sein. Auch dieses Rohrprofilteil 22 kann aus Metall oder Kunststoff bestehen. Der Hohlraum 18 mit oder ohne Rohrprofilteil 22 kann auch für Entwässerungsfunktionen oder für die Anordnung elektrischer Leitungen genutzt werden.Similarly, the
Alternativ kann auch vorgesehen sein, dass der Hohlraum mit Schaumstoff ausgefüllt ist.Alternatively it can also be provided that the cavity is filled with foam.
Im Sockelteil 4 ist eine quer zur Beton-Schutzwand verlaufende Entwässerungsrinne 26 dargestellt, die einen Abfluss von Wasser von einer Seite der Beton-Schutzwand auf die andere ermöglicht. Derartige Entwässerungsrinnen 26 können in einem frei wählbaren Abstand entsprechend den örtlichen Anforderungen angeordnet sein.In the base part 4 a transverse to the concrete protective
Es versteht sich, dass der Hohlraum 18 mit oder ohne Rohrprofilteil 22 auch tiefer bis in den Bereich des Sockelteils 4 oder auch höher bis in den Bereich des Wandteils 8 angeordnet sein kann.It is understood that the
In der Oberfläche des Übergangsabschnitts 6 und in dem Wandteil 8 können Stufen 25 als Überstiegshilfen eingelassen sein.In the surface of the
Es versteht sich, dass die in den einzelnen Ausführungsbeispielen dargestellten Varianten beispielsweise die unterschiedlichen Längsbewehrungen 10,24, die unterschiedlichen Oberflächenprofilierung des Wandteils 8, die Anordnung eines Hohlraums 18 mit und ohne Rohrprofilteil 22, sowie das Vorsehen von Stufen 25 oder Entwässerungsrinnen 26 auch bei den anderen gezeigten Ausführungsbeispielen sowie bei den bekannten New Jersey-Schutzwänden oder Step-Schutzwänden gemäß
Alternativ kann der Zwischenraum zwischen den Hälften des Betonkörpers 1a,1b auch mit einem Dämpfungsmaterial zur Energieaufnahme, beispielsweise einem Tongranulat verfüllt sein.Alternatively, the gap between the halves of the
Claims (17)
- A concrete protection wall consisting of a one-pieced concrete body (1, 1a,1b) produced by a slip-form paver, for placement on a road surface (2), comprising- a base portion (4) resting on the road surface (2),- a transition portion (6) adjoining the base portion in upward direction, and- a wall portion (8) adjoining the transition portion (6) and conically tapering in upward direction,
characterized in- that the total height of the concrete body (1) is in the range from 950 to 1050 mm and preferably is 1000 mm,- that the ratio of the contact width of the base portion (4) relative to the total height of the concrete body (1) is above 0.6 and preferably is 0.7,- the cross-sectional area of the concrete body (1) being less than 0.4 m2 and preferably being in the range from 0.33 to 0.39 m2. - The concrete protection wall according to claim 1, characterized in that, between the base portion (4) and the road surface (2), an intermediate layer (14), preferably a plastic film, is arranged.
- The concrete protection wall according to claim 1 or 2, characterized in that a hollow space (18) of preferably circular cross section and continuously extending in the longitudinal direction, is arranged in the transition portion (6).
- The concrete protection wall according to claim 3, characterized in that the hollow space (18) has a cross-sectional diameter in the range from 150 to 250 mm, preferably a diameter of 200 mm.
- The concrete protection wall according to any one of claims 1 to 4, characterized in that the concrete body (1) preferably comprises a plurality of longitudinal reinforcements (10).
- The concrete protection wall according to any one of claims 1 to 5, characterized in that the concrete body (1) comprises vertically extending split lines (27), arranged at predetermined intervals in the longitudinal direction, for reducing the stiffness in the longitudinal direction.
- The concrete protection wall according to claim 6, characterized in that the split lines (27) are filled by an elastic material (29).
- The concrete protection wall according to any one of claims 1 to 7, characterized in that downwardly open drainage grooves (26), arranged at predetermined intervals and transversely to the longitudinal direction, are arranged in the base portion (4).
- The concrete protection wall according to any one of claims 1 to 8, characterized in that the concrete body (1) comprises steps (25) as climb-over aids at predetermined distances.
- The concrete protection wall according to any one of claims 4 to 9, characterized in that the hollow space (18) is delimited by a tubular profiled member (22).
- The concrete protection wall according to any one of claims 2 to 10, characterized in that the longitudinal reinforcements (10) consist of tubular profiles (24).
- The concrete protection wall according to any one of claims 1 to 11, characterized in that the wall portion (8) comprises a structured, preferably corrugated surface.
- The concrete protection wall according to any one of claims 1 to 12, characterized in that the base portion (4) has a rectangular cross section with a height of at least 100 mm.
- The concrete protection wall according to any one of claims 1 to 12, characterized in that the concrete body (1) on its bottom side comprises a channel (34) extending in the longitudinal direction and engaging a projection (30) of a foundation plate (28).
- The concrete protection wall according to claim 14, characterized in that a damping material (32) is arranged between the channel (34) and the projection (30).
- The concrete protection wall according to claim 14 or 15, characterized in that the foundation plate (28) can be entirely or partially sunk into the road surface (2).
- The concrete protection wall according to any one of claims 1 to 16, characterized in that the ratio of the width of the wall portion (8) at the upper end relative to the total height of the concrete body (1) is in the range of 0.18 to 0.22 and preferably is 0.21.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20303254U DE20303254U1 (en) | 2003-02-28 | 2003-02-28 | Concrete crash barrier |
DE20303254U | 2003-02-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1452666A2 EP1452666A2 (en) | 2004-09-01 |
EP1452666A3 EP1452666A3 (en) | 2005-12-14 |
EP1452666B1 true EP1452666B1 (en) | 2014-07-30 |
Family
ID=32695295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20040001752 Expired - Lifetime EP1452666B1 (en) | 2003-02-28 | 2004-02-02 | Concrete protection wall |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1452666B1 (en) |
DE (1) | DE20303254U1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005039705A1 (en) * | 2005-05-10 | 2006-11-16 | Durabel Baubedarf Gmbh | Traffic-guide assembly |
DE102005030412A1 (en) * | 2005-06-30 | 2007-01-04 | Tss Technische Sicherheits-Systeme Gmbh | Restraint system |
DE102006001980A1 (en) | 2005-09-13 | 2007-03-22 | Durabel Baubedarf Gmbh | Traffic-guide assembly |
DE102010036334B4 (en) * | 2010-07-12 | 2019-10-10 | Linetech Gmbh & Co. Kg | Roadway for vehicles and process for their production |
DE202011005689U1 (en) | 2011-04-28 | 2011-09-12 | Eurovia Beton Gmbh | Vehicle restraint system |
DE202014005167U1 (en) * | 2014-06-27 | 2015-10-01 | Strabag Ag | concrete barrier |
DE102015100277A1 (en) | 2015-01-09 | 2016-07-14 | Technische Universität Dresden | Concrete wall and manufacturing process by slipforming |
IT201900016088A1 (en) * | 2019-09-11 | 2021-03-11 | Anas S P A | Road safety barrier |
CN115992495A (en) * | 2022-12-20 | 2023-04-21 | 济南城建集团有限公司 | Secondary reconstruction concrete guardrail structure and construction method for heightening guardrail structure |
CN115949016A (en) * | 2022-12-20 | 2023-04-11 | 济南城建集团有限公司 | Secondary height-increasing guardrail and construction method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1243870A (en) * | 1984-05-07 | 1988-11-01 | Walter B. Hahne | Barrier with internal ducts and construction method |
FR2704880B1 (en) * | 1993-05-07 | 1998-07-17 | Colas Sa | Versatile road protection device. |
US6413009B1 (en) * | 2000-11-06 | 2002-07-02 | Barrier Systems, Inc. | Vehicular traffic barrier system |
US6679649B1 (en) * | 2002-12-27 | 2004-01-20 | Sps New England, Inc. | Barrier wall apparatus and method of construction |
-
2003
- 2003-02-28 DE DE20303254U patent/DE20303254U1/en not_active Expired - Lifetime
-
2004
- 2004-02-02 EP EP20040001752 patent/EP1452666B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1452666A2 (en) | 2004-09-01 |
EP1452666A3 (en) | 2005-12-14 |
DE20303254U1 (en) | 2004-07-08 |
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