EP1650353A2 - Concrete wall element for guardrail on roads - Google Patents
Concrete wall element for guardrail on roads Download PDFInfo
- Publication number
- EP1650353A2 EP1650353A2 EP06001661A EP06001661A EP1650353A2 EP 1650353 A2 EP1650353 A2 EP 1650353A2 EP 06001661 A EP06001661 A EP 06001661A EP 06001661 A EP06001661 A EP 06001661A EP 1650353 A2 EP1650353 A2 EP 1650353A2
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- European Patent Office
- Prior art keywords
- wall element
- wall
- elements
- element according
- threaded
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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
- E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
- E01F15/088—Details of element connection
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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
- E01F15/08—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 wall element for a restraint system on roads.
- a separation of the oncoming traffic areas can be done by the known wall elements, but from a certain lane width, these are no longer used, since they take too high an effective deployment width to complete. In such cases, many road operators are forced to resort to conventional methods, such as e.g. use dual guidelines to separate different lanes from each other. However, as has been shown, these safety measures are far from sufficient to avoid leakage.
- Known wall elements made of metal can be made relatively narrow, but they are significantly more resilient than concrete wall elements.
- the object of the invention is therefore to provide a wall element of the type mentioned above, which allows a sufficiently stable installation at relatively low effective width.
- the increased stability of the wall elements against tipping caused by the lateral support elements makes it possible to produce the wall element made of concrete and thus to ensure an increased mechanical strength thereof with a relatively successful width. This can be dispensed with an otherwise usual in New Jersey concrete wall profiles cross-sectional widening in the lower area, which increases the field of application of the wall element according to the invention accordingly.
- An structurally and manufacturing technology favorable embodiment of the invention may be to form the cross-section of the wall element trapezoidal.
- a high resistance with relatively low weight of the wall element can be achieved if the support elements are formed of metal.
- a bottom mark in the form of a film or a paint can be provided on the top of the support elements.
- the support elements are formed by steel profiles and anchored in the wall element.
- Wall element provides.
- a further variant of the invention may consist in that the steel profiles have L-shaped cross-section, wherein the shorter leg L each adjacent to a recessed beveled surface of the wall element and the longer L-leg projecting from the wall element at an acute angle to the ground, so that the profile ends of the L-shaped steel profiles support the wall element on the ground - in cross section.
- the thus connected to the wall element steel profiles provide a stable support in the lower region of the wall element, so that tipping of the wall element can be effectively avoided.
- the profiled design on the one hand saves material and is also suitable to provide additional elastic bearings.
- the bearing elements may be positively inserted into the cavity formed by the support elements and form parallel surfaces to the underside of the wall element.
- the wall elements are elastically on the bearing elements, which are compressed in a collision accident so far that the support elements come into contact with the ground and act against tipping over the Wandelemmts.
- bearing elements can withstand the pressure acting on them, if, according to a further embodiment of the invention, bearing elements are designed as elastomer bearing elements.
- the support surfaces of the bearing elements may have a profile, preferably with triangular cross-section, which increases the friction of the bearing elements on the ground.
- a sufficient elastic mounting can be created if, according to a further embodiment of the invention, the bearing elements are arranged on opposite sides and in the region of the ends of the wall element.
- the invention relates to a baffle for traffic routes, with concrete wall elements having extending inside drawstrings, the ends of which are provided with frontal engaging elements, in which coupling tension members are used for non-positive connection of adjacent wall elements, using a Wall element according to the invention.
- the mutually end-side connected wall elements are deflected at a lateral approach by a motor vehicle depending on the force of the impact, which is given at the accident site itself, of course, the largest deflection.
- the coupling pressure members put the coupling tension members under tension, whereby an optimal non-positive tension connection between the wall elements of such a baffle can be achieved without play, which results in a lateral impact of a motor vehicle, a smaller displacement or deflection.
- the lower shift in accidents can reduce consequential accidents in the oncoming traffic.
- the coupling-pressure members are formed by threaded screws with a shank part and a head part, and in each case one end face of each wall member, a threaded sleeve is inserted, in which the threaded screws are screwed, so that the head part of the threaded screws can be supported on the respective opposite end face of the adjacent wall element.
- the coupling pressure members are formed by threaded screws with a shank portion and a head portion, wherein the head portion is connected to a support plate, and the coupling pressure members are inserted into recesses on opposite end faces of the wall elements, wherein in each case a sleeve for receiving the shank end of the threaded screw and for supporting a threaded nut screwed onto the shaft part is provided and the support plate is supported on the inner wall of the respective opposite recess in each case.
- the pressure acting on the wall elements via the coupling pressure members can be introduced uniformly into these.
- Another embodiment of the invention may consist in that in the region of the joint between the end faces of adjacent wall elements in each case at least one planar, elastic pressure compensation element is arranged in a form-fitting manner.
- the shape of the pressure compensation element is adapted to the course of the shorter L leg.
- the pressure compensation element is wedge-shaped, since it is better adapted to the shape of the gap occurring between the wall elements.
- the invention shows a concrete wall element 1 for a restraint system on roads with trapezoidal cross-section, which can be connected by means of each end arranged engaging elements 15, 16 with other similar wall elements to build a restraint system.
- the invention provides that on opposite longitudinal sides in the support region of the wall element 1 at least partially along the length of metal support members 10, 11 are provided, which are non-positively connected to the wall element 1.
- the wall element is replaced by a comparable with the usual New Jersey profile stability and can thus be used as a wall element with limited roadway width.
- the support elements are formed in the embodiment of Figure 1 by over the entire length of the wall member 1 extending steel sections 10, 11 with L-shaped cross-section and anchored in the wall element 1 by anchor bolt 8, which can also be connected to the reinforcement of the wall element 1.
- anchor bolt 8 which can also be connected to the reinforcement of the wall element 1.
- any changes in the shape of the support elements are possible.
- the shorter L-leg 81 each adjoins a recessed beveled surface of the wall element 1 and the longer L-leg 80 projects from the wall element 1 at an acute angle to the ground, so that - seen in cross-section - the profile ends of the L-shaped steel profiles support the wall element 1 on the ground, as soon as it is exposed to a load in a start-up event.
- Other elastic materials can also be used to form the bearing elements.
- the bearing elements 4, 5 are positively inserted into the cavity formed by the support elements 10, 11 and form parallel to the bottom of the wall element 1 flat surfaces.
- the bearing elements cause on the one hand an elastic mounting of the wall element, whereby a depression of the same in the ground or ground, e.g. into the asphalt surface, when it warms up and softens in summer, is prevented.
- Another advantage is the increased friction by the bearing elements, which opposes a displacement of the wall element 1 in a lateral impact of a motor vehicle, an increased resistance.
- FIGS. 2, 3, 4 and 5 show further embodiments of elastic support elements 40, 50, 41, 51, 42, 52, 43, 53 whose base surfaces have a profile which offers advantages for different substrates.
- the profiling is triangular jagged.
- the footprint of Abstützclements shown there is slightly rounded.
- the elastic bearing elements 4, 5 are preferably arranged on opposite sides and in the region of the ends of the wall element 1.
- the dimensioning of the elastic bearing elements 4, 5 takes place in dependence on the weight of the wall element 1 and in dependence on the desired friction values.
- a vote may e.g. done by different Shore hardnesses and / or lengths of the bearing elements.
- FIG. 9 shows a detail of a guide wall for traffic routes for which the support elements 10, 11 according to the invention can be used.
- the wall elements 1,1 ' have inside the same extending drawstrings 34, 35 and 34', 35 ', whose ends are provided with end-side engaging elements 15 and 15', in which coupling tension members 21 for non-positive connection of adjacent wall elements 1, 1'intitle are.
- the invention provides that the respective adjacent wall elements 1, 1 'additionally by coupling pressure members 55, 57th are connected, which are supported in or on opposite end faces of the wall elements 1, 1 '.
- the coupling pressure members are formed by threaded screws with a shaft portion 55 and a head portion 57 and in each case one end face of each wall element 1, 1 ', a threaded sleeve 56 is inserted.
- a threaded sleeve 56 is inserted in Figure 9, the corresponding end face of the wall element I is shown in the threaded sleeve 56, the threaded screw 55, 57 is screwed.
- the head portion 57 of the threaded screws is supported on the respective opposite end face of the adjacent wall element 1 '.
- the coupling tension member 21 can be set under a slight bias and the game of train connection can be reduced, whereby the stability of the train can be increased against lateral deflection.
- the coupling-pressure members can also be provided with guide walls with wall elements without lateral support elements.
- the coupling-pressure members of the baffle according to the invention are formed by threaded screws with a shaft portion 65 and a head portion 67 which is connected to a support plate 69 which on a reinforced by a steel core inner wall 70 of two opposite each Wells is supported.
- a sleeve 68 for receiving the shank end of the threaded screw and for supporting a screwed onto the shaft part 65 threaded nut 66 is provided.
- the clutch pressure members may be installed below or above the Kupplungslemente 21.
- At least one planar elastic pressure compensation element 6, 7 is in each case arranged in a form-fitting manner, which is illustrated in FIGS. 1 and 6, which has a wedge-shaped cross-section and thereby damaging the wall elements when they are deflected avoid during a lateral startup or at least reduce, so that the baffle according to the invention can also be used after a displacement caused by a motor vehicle
- the shape of the pressure compensation element 6, 7 is adapted to the course of the shorter L-leg 81.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Road Signs Or Road Markings (AREA)
- Road Paving Structures (AREA)
- Fencing (AREA)
Abstract
Description
Die Erfindung betrifft ein Beton-Wandelement für ein Rückhaltesystem auf Straßen.The invention relates to a concrete wall element for a restraint system on roads.
Mit Wandelementen der vorgenannten Art kann eine wirkungsvolle Trennung von Verkehrsströmen vor allem im Gegenverkehrsbereich erreicht werden, die im Gegensatz zu einfachen Bodenmarkierungen auch eine mechanisch wirkende Begrenzung der Fahrbahnen darstellt. In vielen Bereichen ist es keineswegs ausreichend, die Kraftfahrzeuge nur durch die Farbmarkierungen vor einer gegenseitigen Beeinflussung zu schützen, da es auf stark befahrenen Strecken zu gefährlichen Verkehrssituationen kommen kann. Besonders innerhalb von Baustellenbereichen ist eine vorübergehende Verengung der zur Verfügung stehenden Straßenfläche unumgänglich. Die Kraftfahrzeuglenker neigen aber gerade an diesen Engstellen zu besonders hoher Unfallhäufigkeit, weil die vorherrschende Verkehrssituation oft unterschätzt und das eigene Fahrkönnen überschätzt wird. Auch Übermüdungen der Kraftfahrzeuglenker führen besonders an diesen engen Stellen des Verkehrsweges zu hohen Unfallgefahren.With wall elements of the aforementioned type, an effective separation of traffic flows can be achieved, especially in the oncoming traffic, which also represents a mechanically acting boundary of the lanes, in contrast to simple ground markings. In many areas, it is by no means sufficient to protect the motor vehicles from interference only by the color markings, since dangerous traffic situations can occur on busy routes. Especially within construction sites, a temporary narrowing of the available road surface is inevitable. However, motor vehicle drivers are prone to particularly high accident frequency at these bottlenecks because the prevailing traffic situation is often underestimated and their own driving skills are overestimated. Even fatigue of motor vehicle drivers lead to high accident hazards especially at these narrow points of the traffic route.
Eine Trennung der Gegenverkehrsbereiche kann durch die bekannten Wandelemente erfolgen, ab einer bestimmten Fahrbahnbreite sind diese aber nicht mehr einsetzbar, da sie eine zu hohe wirksame Aufstellungsbreite in Anspruch nehmen. In solchen Fällen sind viele Straßenbetreiber dazu gezwungen, auf herkömmliche Methoden, wie z.B. doppelte Leitlinien zurückzugreifen, um unterschiedliche Fahrbahnen voneinander zu trermen. Wie sich aber gezeigt hat, sind diese Sicherheitsmaßnahmen bei weitem nicht ausreichend, um Suaßenverkehrsnnfllc zu vermeiden.A separation of the oncoming traffic areas can be done by the known wall elements, but from a certain lane width, these are no longer used, since they take too high an effective deployment width to complete. In such cases, many road operators are forced to resort to conventional methods, such as e.g. use dual guidelines to separate different lanes from each other. However, as has been shown, these safety measures are far from sufficient to avoid leakage.
Bekannte Wandelemente aus Metall können relativ schmal ausgebildet werden, sie sind aber wesentlich geringfügig belastbarer als Beton-Wandelemente.Known wall elements made of metal can be made relatively narrow, but they are significantly more resilient than concrete wall elements.
Aufgabe der Erfindung ist es daher, ein Wandelement der eingangs genannten Art anzugeben, das eine ausreichend stabile Aufstellung bei relativ geringer wirksamer Breite ermöglicht.The object of the invention is therefore to provide a wall element of the type mentioned above, which allows a sufficiently stable installation at relatively low effective width.
Erfindungsgemäß wird dies dadurch erreicht, daß an gegenüberliegenden Längsseiten im Auflagebereich des Wandelements zumindest teilweise entlang dessen Länge Abstützelemente vorgesehen sind, die mit dem Wandelement kraftschlüssig verbunden sind.According to the invention this is achieved in that on opposite longitudinal sides in the support region of the wall element at least partially along the length supporting elements are provided which are non-positively connected to the wall element.
Die durch die seitlichen Abstützelemente bewirkte erhöhte Stabilität der Wandelemente gegen ein Umkippen ermöglicht es, das Wandelement aus Beton herzustellen und damit eine erhöhte mechanische Festigkeit desselben bei einer relativ gelingen Breite zu gewährleisten. Damit kann auf eine sonst bei New-Jersey-Betonwandprofilen übliche Querschnittsverbreiterung im unteren Bereich verzichtet werden, was das Anwendungsgebiet des erfindungsgemäßen Wandelements entsprechend erhöht.The increased stability of the wall elements against tipping caused by the lateral support elements makes it possible to produce the wall element made of concrete and thus to ensure an increased mechanical strength thereof with a relatively successful width. This can be dispensed with an otherwise usual in New Jersey concrete wall profiles cross-sectional widening in the lower area, which increases the field of application of the wall element according to the invention accordingly.
Eine baulich sowie herstellungstechnisch günstige Ausführungsform der Erfindung kann darin bestehen, den Querschnitt des Wandelements trapezförmig auszubilden.An structurally and manufacturing technology favorable embodiment of the invention may be to form the cross-section of the wall element trapezoidal.
Eine hohe Widerstandsfähigkeit bei relativ geringem Gewicht des Wandelements kann dann erzielt werden, wenn die Abstützelemente aus Metall gebildet sind. Auf der Oberseite der Abstützelemente kann eine Bodenmarkierung in Form einer Folie oder eines Anstriches vorgesehen sein.A high resistance with relatively low weight of the wall element can be achieved if the support elements are formed of metal. On the top of the support elements, a bottom mark in the form of a film or a paint can be provided.
Weiters kann gemäß einer weiteren Ausführungsform der Erfindung vorgesehen sein, daß die Abstützelemente durch Stahlprofile gebildet und im Wandelement verankert sind.Furthermore, it can be provided according to a further embodiment of the invention that the support elements are formed by steel profiles and anchored in the wall element.
Dadurch kann eine sehr stabile Form der seitlichen Abstützung erreicht werden, wobei die Verankerung im Wandelement eine sehr sichere Verbindung zwischen Abstützelementen undThis allows a very stable form of lateral support can be achieved, the anchoring in the wall element a very secure connection between support elements and
Wandelement bietet.Wall element provides.
Eine weitere Variante der Erfindung kann darin bestehen, daß die Stahlprofile L-förmigen Querschnitt aufweisen, wobei der kürzere L-Schenkel jeweils an einer zurückspringend abgeschrägten Fläche des Wandelements angrenzt und der längere L-Schenkel vom Wandelement in einem spitzen Winkel zum Boden gerichtet vorsteht, sodaß - im Querschnitt geschen - die Profilenden der L-förmigen Stahlprofile das Wandelement am Boden abstützen.A further variant of the invention may consist in that the steel profiles have L-shaped cross-section, wherein the shorter leg L each adjacent to a recessed beveled surface of the wall element and the longer L-leg projecting from the wall element at an acute angle to the ground, so that the profile ends of the L-shaped steel profiles support the wall element on the ground - in cross section.
Die auf diese Weise mit dem Wandelement verbundenen Stahlprofile ergeben eine stabile Abstützung im unteren Bereich des Wandelements, sodaß ein Umkippen des Wandelements wirksam vermieden werden kann. Die profilierte Ausführung bringt einerseits Materialersparnis und ist auch dazu geeignet, zusätzliche elastische Lagerungen vorzusehen.The thus connected to the wall element steel profiles provide a stable support in the lower region of the wall element, so that tipping of the wall element can be effectively avoided. The profiled design on the one hand saves material and is also suitable to provide additional elastic bearings.
Um eine elastische Lagerung des erfindungsgemäßen Wandelements zu ermöglichen, kann in Weiterbildung der Erfindung vorgesehen sein, daß elastische Lagerelemente in die Abstützelemente eingesetzt sind. Durch diese wird die aufgrund seitlicher Stöße während eines Anfahrunfalles hervorgerufene Bruchgefahr beim erfindungsgemäßen Wandelement herabgesetzt.In order to enable an elastic mounting of the wall element according to the invention, can be provided in a further development of the invention that elastic bearing elements are inserted into the support elements. This reduces the risk of breakage caused by lateral impacts during a collision accident in the wall element according to the invention.
In weiterer Fortbildung der Erfindung können die Lagerelemente formschlüssig in den durch die Abstützelemente gebildeten Hohlraum eingesetzt sein und parallel zur Unterseite des Wandelements Standflächen ausbilden. Auf diese Weise liegen die Wandelemente elastisch auf den Lagerelementen auf, welche bei einem Anfahrunfall soweit zusammengedrückt werden, daß die Abstützelemente mit dem Untergrund in Kontakt kommen und gegen ein Umkippen des Wandelemmts wirken.In a further development of the invention, the bearing elements may be positively inserted into the cavity formed by the support elements and form parallel surfaces to the underside of the wall element. In this way, the wall elements are elastically on the bearing elements, which are compressed in a collision accident so far that the support elements come into contact with the ground and act against tipping over the Wandelemmts.
Trotz des hohen Eigengewichts können die Lagerelemente dem auf sie wirkenden Druck dann standhalten, wenn gemäß einer weiteren Ausführungsform der Erfindung Lagerelemente als Elastomer-Lagerelemente ausgebildet sind.Despite the high weight, the bearing elements can withstand the pressure acting on them, if, according to a further embodiment of the invention, bearing elements are designed as elastomer bearing elements.
In weiterer Ausbildung der Erfindung können die Standflächen der Lagerelemente ein Profil, vorzugsweise mit dreieckförmigem Querschnitt, aufweisen, welches die Reibung der Lagerelemente auf dem Untergrund erhöht.In a further embodiment of the invention, the support surfaces of the bearing elements may have a profile, preferably with triangular cross-section, which increases the friction of the bearing elements on the ground.
Eine ausreichende elastische Lagerung kann geschaffen werden, wenn gemäß einer weiteren Ausführungsform der Erfindung die Lagerelemente an gegenüberliegenden Seiten und im Bereich der Enden des Wandelements angeordnet sind.A sufficient elastic mounting can be created if, according to a further embodiment of the invention, the bearing elements are arranged on opposite sides and in the region of the ends of the wall element.
In einer bevorzugten Ausgestaltung betrifft die Erfindung eine Leitwand für Verkehrswege, mit Beton-Wandelementen, die im Inneren verlaufende Zugbänder aufweisen, deren Enden mit stirnseitigen Eingriffselementen versehen sind, in welche Kupplungs-Zugglieder zur kraftschlüssigen Verbindung von jeweils benachbarten Wandelementen einsetzbar sind, unter Verwendung eines erfindungsgemäßen Wandelements.In a preferred embodiment, the invention relates to a baffle for traffic routes, with concrete wall elements having extending inside drawstrings, the ends of which are provided with frontal engaging elements, in which coupling tension members are used for non-positive connection of adjacent wall elements, using a Wall element according to the invention.
Die untereinander stirnseitig verbundenen Wandelemente werden bei einem seitlichen Anfahren durch ein Kraftfahrzeug in Abhängigkeit von der Wucht des Aufpralls ausgelenkt, wobei an der Unfallstelle selbst naturgemäß die größte Auslenkung gegeben ist.The mutually end-side connected wall elements are deflected at a lateral approach by a motor vehicle depending on the force of the impact, which is given at the accident site itself, of course, the largest deflection.
Es ist daher vorteilhaft die Leitwand vor einer zu großen Auslenkung zu schützen.It is therefore advantageous to protect the baffle from excessive deflection.
Dies kann dadurch erreicht werden, daß die jeweils benachbarten Wandelemente zusätzlich durch Kupplungs-Druckglieder verbunden sind, die in oder an gegenüberliegenden Stirnflächen der Wandelemente abgestützt sind.This can be achieved in that the respective adjacent wall elements are additionally connected by coupling pressure members which are supported in or on opposite end faces of the wall elements.
Die Kupplungs-Druckglieder setzen die Kupplungs-Zugglieder unter Vorspannung, wodurch eine optimale kraftschlüssige Zugverbindung zwischen den Wandelementen einer derartigen Leitwand ohne Spiel erreicht werden kann, die bei einem seitlichen Anprall eines Kraftfahrzeuges eine geringere Verschiebung bzw. Auslenkung ergibt. Durch die geringere Verschiebung bei Unfällen können Folgeunfälle im Gegenverkehrsbereich vermindert werden.The coupling pressure members put the coupling tension members under tension, whereby an optimal non-positive tension connection between the wall elements of such a baffle can be achieved without play, which results in a lateral impact of a motor vehicle, a smaller displacement or deflection. The lower shift in accidents can reduce consequential accidents in the oncoming traffic.
Gemäß einer weiteren Ausbildung der Erfindung kann vorgesehen sein, daß die Kupplungs-Druckglieder durch Gewindeschrauben mit einem Schaftteil und einem Kopfteil gebildet sind, und in jeweils einer Stirnfläche jedes Wandelements eine Gewindehülse eingesetzt ist, in der die Gewindeschrauben einschraubbar sind, sodaß der Kopfteil der Gewindeschrauben an der jeweils gegenüberliegenden Stirnfläche des benachbarten Wandelements abstützbar ist.According to a further embodiment of the invention can be provided that the coupling-pressure members are formed by threaded screws with a shank part and a head part, and in each case one end face of each wall member, a threaded sleeve is inserted, in which the threaded screws are screwed, so that the head part of the threaded screws can be supported on the respective opposite end face of the adjacent wall element.
Durch Verdrehen der Gewindeschraube in der Gewindehülse kann eine geeignete Vorspannung der Kupplungs-Zugglieder erreicht und damit die Zugverbindung spielfrei gehalten werden.By turning the threaded screw in the threaded sleeve, a suitable bias of the coupling tension members can be achieved and thus the train connection can be kept free of play.
Eine andere Variante der Erfindung kann darin bestehen, daß die Kupplungs-Druckglieder durch Gewindeschrauben mit einem Schaftteil und einem Kopfteil gebildet sind, wobei der Kopfteil mit einer Stützplatte verbunden ist, und die Kupplungs-Druckglieder in Vertiefungen an gegenüberliegenden Stirnflächen der Wandelemente eingesetzt sind, wobei in jeweils einer Vertiefung eine Hülse zur Aufnahme des Schaftendes der Gewindeschraube und zur Abstützung einer auf dem Schaftteil aufgeschraubten Gewindemutter vorgesehen ist und die Stützplatte an der Innenwand der jeweils gegenüberliegenden Vertiefung abgestützt ist.Another variant of the invention may consist in that the coupling pressure members are formed by threaded screws with a shank portion and a head portion, wherein the head portion is connected to a support plate, and the coupling pressure members are inserted into recesses on opposite end faces of the wall elements, wherein in each case a sleeve for receiving the shank end of the threaded screw and for supporting a threaded nut screwed onto the shaft part is provided and the support plate is supported on the inner wall of the respective opposite recess in each case.
Durch die Stützplatte und die Aufnahmehülse kann der über die Kupplungs-Druckglieder auf die Wandelemente wirkende Druck gleichmäßig in diese eingeleitet werden.Through the support plate and the receiving sleeve, the pressure acting on the wall elements via the coupling pressure members can be introduced uniformly into these.
Eine weitere Ausführungsform der Erfindung kann darin bestehen, daß im Bereich der Stoßstelle zwischen den Stirnseiten benachbarter Wandelemente jeweils zumindest ein flächiges, elastisches Druckausgleichselement formschlüssig angeordnet ist.Another embodiment of the invention may consist in that in the region of the joint between the end faces of adjacent wall elements in each case at least one planar, elastic pressure compensation element is arranged in a form-fitting manner.
Dadurch wird im Falle eines Anfahrunfalles die Wand zwar ausgelenkt und dabei die einzelnen Wandelemente verschoben, die dabei entstehenden Drucksparmungen an den Randbereichen der Wandelemente können aber soweit vergleichmäßigt werden, daß kein Abplatzen von Teilen der Leitwandelemente geschieht. Weiters wird durch die gleichmäßige Weiterleitung des entstehenden Druckes von außen in die Wandelemente hinein auch eine Erhöhung der Zugfestigkeit der gesamten Wandverspannung in Längsrichtung erreicht.As a result, in the case of a collision accident, the wall is indeed deflected and thereby displaced the individual wall elements, but the resulting pressure savings at the edge regions of the wall elements can be but evened out so far that no chipping off of parts of the Leitwandelemente done. Furthermore, an increase in the tensile strength of the entire wall tension in the longitudinal direction is achieved by the uniform forwarding of the resulting pressure from the outside into the wall elements.
Damit die elastischen Druckausgleichselemente nicht vom Wandelement vorstehen, kann vorgesehen sein, daß die Form des Druckausgleichselements dem Verlauf des kürzeren L-Schenkels augepaßt ist.So that the elastic pressure compensation elements do not protrude from the wall element, it can be provided that the shape of the pressure compensation element is adapted to the course of the shorter L leg.
Weiters kann vorgesehen sein, daß das Druckausgleichselement keilförmig ausgebildet ist, da es dadurch besser der Form des zwischen den Wandelementen auftretenden Spalts angepaßt ist.Furthermore, it can be provided that the pressure compensation element is wedge-shaped, since it is better adapted to the shape of the gap occurring between the wall elements.
Nachfolgend wird die Erfindung anhand der in den Zeichnungen dargestellten Ausführungsbeispiele eingehend erläutert. Es zeigt dabei
- Fig.1 eine Stirnansicht einer Ausführungsform des erfindungsgemäßen Wandelements;
- Fig.2 bis Fig.5 das Profil verschiedener elastischer Lagerelemente;
- Fig.6 eine Draufsicht auf eine Verbindungsstelle von benachbarten Wandelementen gemäß Fig.1;
- Fig.7 eine Seitenansicht einer Verbindungsstelle einer Ausführungsform der erfindungsgemäßen Leitwand;
- Fig.8 eine Draufsicht auf die Verbindungsstelle gemäß Fig.7;
- Fig.9 eine Seitenansicht einer Verbindungsstelle einer weiteren Ausführungsform der erfindungsgemäßen Leitwand;
- Fig.10, 11 und 12 eine Seitenansicht, einen Grundriß und eine Stimansicht des Wandelements gemäß Fig.1.
- 1 shows an end view of an embodiment of the wall element according to the invention;
- Fig.2 to Fig.5 the profile of various elastic bearing elements;
- Fig. 6 is a plan view of a joint of adjacent wall elements according to Fig. 1;
- 7 shows a side view of a connection point of an embodiment of the guide wall according to the invention;
- 8 shows a plan view of the connection point according to FIG. 7;
- 9 shows a side view of a connection point of a further embodiment of the guide wall according to the invention;
- 10, 11 and 12 a side view, a plan view and an end view of the wall element according to Fig.1.
Fig.1 zeigt ein Beton-Wandelement 1 für ein Rückhaltesystem auf Straßen mit trapezförmigem Querschnitt, welches mittels jeweils stimseitig angeordneten Eingriffselementen 15, 16 mit weiteren gleichartigen Wandelementen verbunden werden kann, um ein Rückhaltesystem zu errichten. Um eine ausreichende Stabilität des Wandelements gegen seitlich gerichtete Aufprallkräfte zu ermöglichen, ist erfindungsgemäß vorgesehen, daß an gegenüberliegenden Längsseiten im Auflagebereich des Wandelements 1 zumindest teilweise entlang dessen Länge aus Metall gebildete Abstützelemente 10, 11 vorgesehen sind, die mit dem Wandelement 1 kraftschlüssig verbunden sind.1 shows a
Auf diese Weise wird das Umkippen des Wandelements 1 verhindert, dennoch aber eine geringe Breite des Wandelement-Querschnitts ermöglicht. Das Wandelement erhält dadurch eine mit dem üblichen New-Jersey-Profil vergleichbare Standfestigkeit und kann damit als Wandelement bei begrenzter Fahrbahnbreite eingesetzt werden.In this way, the tilting of the
Die Abstützelemente sind im Ausführungsbeispiel gemäß Fig.1 durch über die gesamte Länge des Wandelements 1 sich erstreckende Stahlprofile 10, 11 mit L-förmigem Querschnitt gebildet und im Wandelement 1 durch Ankerbolzen 8 verankert, die auch mit der Armierung des Wandelements 1 verbunden sein können. Im Rahmen der Erfindung sind beliebige Veränderungen der Form der Abstützelemente möglich.The support elements are formed in the embodiment of Figure 1 by over the entire length of the
Der kürzere L-Schenkel 81 grenzt jeweils an einer zurückspringend abgeschrägten Fläche des Wandelements 1 an und der längere L-Schenkel 80 steht vom Wandelement 1 in einem spitzen Winkel zum Boden gerichtet vor, sodaß - im Querschnitt gesehen - die Profilenden der L-förmigen Stahlprofile das Wandelement 1 am Boden abstützen, sobald dieses einer Belastung bei einem Anfahrereignis ausgesetzt ist.The shorter L-
In der in Fig.1 gezeigten Ausführungsform sind elastische Lagerelemente 4, 5, vorzugsweise aus einem Elastomer, in die Abstützelemente 10, 11 eingesetzt, wodurch die Profilenden bei einer Belastung, etwa bei seitlichem Anfahren auf das Wandelement 1, den Boden berühren und das Wandelement 1 am Kippen hindern. Es können auch andere elastische Materialien zur Ausbildung der Lagerelemente herangezogen werden.In the embodiment shown in Figure 1 are
Die Lagerelemente 4, 5 sind formschlüssig in den durch die Abstützelemente 10, 11 gebildeten Hohlraum eingesetzt und bilden parallel zur Unterseite des Wandelements 1 flache Standflächen aus. Die Lagerelemente bewirken einerseits eine elastische Lagerung des Wandelements, wodurch ein Eindrücken desselben in den Boden bzw. Untergrund, z.B. in den Asphaltbelag, wenn dieser sich im Sommer erwärmt und weich wird, verhindert wird.The
Ein weiterer Vorteil ist die durch die Lagerelemente erhöhte Reibung, die einem Verschieben des Wandelements 1 bei einem seitlichen Aufprall eines Kraftfahrzeuges einen erhöhten Widerstand entgegensetzt.Another advantage is the increased friction by the bearing elements, which opposes a displacement of the
In den Fig. 2, 3, 4 und 5 sind weitere Ausfihrungsformen von elastischen Abstützelementen 40, 50, 41, 51, 42, 52, 43, 53 gezeigt, deren Standflächen ein Profil aufweisen, welches für unterschiedlichen Untergrund Vorteile bietet. Vorzugsweise ist die Profilierung dreieckförmig gezackt ausgebildet. In Fig.5 ist die Standfläche des dort gezeigten Abstützclements leicht gerundet.FIGS. 2, 3, 4 and 5 show further embodiments of elastic support elements 40, 50, 41, 51, 42, 52, 43, 53 whose base surfaces have a profile which offers advantages for different substrates. Preferably, the profiling is triangular jagged. In Figure 5, the footprint of Abstützclements shown there is slightly rounded.
Wie aus Fig.10, 11 ersichtlich sind die elastischen Lagerelemente 4, 5 vorzugsweise an gegenüberliegenden Seiten und im Bereich der Enden des Wandelements 1 angeordnet.As can be seen from FIGS. 10, 11, the
Die Dimensionierung der elastischen Lagerelemente 4, 5 erfolgt in Abhängigkeit vom Eigengewicht des Wandelements 1 und in Abhängigkeit von den gewünschten Reibungswerten. Eine Abstimmung kann z.B. durch unterschiedliche Shore-Härtcn und/oder Längen der Lagerelemente geschehen.The dimensioning of the
Fig.9 zeigt einen Ausschnitt aus einer Leitwand für Verkehrswege, für welche die erfindungsgemäßen Abstützelemente 10, 11 zur Anwendung gelangen können.9 shows a detail of a guide wall for traffic routes for which the
Die Wandelemente 1,1' weisen im Inneren derselben verlaufende Zugbänder 34, 35 und 34', 35' auf, deren Enden mit stirnseitigen Eingriffselementen 15 und 15' versehen sind, in welche Kupplungs-Zugglieder 21 zur kraftschlüssigen Verbindung von jeweils benachbarten Wandelementen 1, 1'eingesetzt sind.The
Um die kraftschlüssige Verbindung zwischen den Wandelementen des Rückhaltesystems zu verbessern und damit die Gefahr eines Durchknickens der Leitwand bei einem seitlichen Anfahren durch ein Kraftfahrzeug zu verringern, ist erfindungsgemäß vorgesehen, daß die jeweils benachbarten Wandelemente 1, 1' zusätzlich durch Kupplungs-Druckglieder 55, 57 verbunden sind, die in oder an gegenüberliegenden Stirnflächen der Wandelemente 1, 1' abgestützt sind.In order to improve the positive connection between the wall elements of the restraint system and thus reduce the risk of kinking of the baffle in a lateral approach by a motor vehicle, the invention provides that the respective
Die Kupplungs-Druckglieder sind durch Gewindeschrauben mit einem Schaftteil 55 und einem Kopfteil 57 gebildet und in jeweils einer Stirnfläche jedes Wandelements 1, 1' ist eine Gewindehülse 56 eingesetzt. In Fig.9 ist die entsprechende Stirnfläche des Wandelements I gezeigt, in deren Gewindehülse 56 die Gewindeschraube 55, 57 geschraubt ist.The coupling pressure members are formed by threaded screws with a
Der Kopfteil 57 der Gewindeschrauben ist dabei an der jeweils gegenüberliegenden Stirnfläche des benachbarten Wandelements 1' abgestützt. Durch geeignetes Verdrehen der Schraube 55, 57 in der Gewindehülse 56 kann das Kupplungs-Zugglied 21 unter eine leichte Vorspannung gesetzt werden und das Spiel der Zugverbindung reduziert werden, wodurch die Stabilität der Zugverbindung gegen ein seitliches Auslenken erhöht werden kann.The
Die Kupplungs-Druckglieder können auch bei Leitwänden mit Wandelementen ohne seitliche Abstützelemente vorgesehen sein.The coupling-pressure members can also be provided with guide walls with wall elements without lateral support elements.
Gemäß dem in Fig.7, 8 gezeigten Ausführungsbeispiel sind die Kupplungs-Druckglieder der erfindungsgemäßen Leitwand durch Gewindeschrauben mit einem Schaftteil 65 und einem Kopfteil 67 ausgebildet, der mit einer Stützplatte 69 verbunden ist, die an einer durch eine Stahleinlage verstärkten Innenwand 70 zweier jeweils gegenüberliegender Vertiefungen abgestützt ist. In der jeweils anderen Vertiefung des Wandelements 1' ist eine Hülse 68 zur Aufnahme des Schaftendes der Gewindeschraube und zur Abstützung einer auf dem Schaftteil 65 aufgeschraubten Gewindemutter 66 vorgesehen. Auf diese Weise kann der vom Kupplungs-Druckglied 65, 67 ausgeübte Druck sehr gleichmäßig in die Wandelemente 1, 1' eingeleitet werden.According to the embodiment shown in Figure 7, 8, the coupling-pressure members of the baffle according to the invention are formed by threaded screws with a
Die Kupplungs-Druckglieder können unterhalb oder oberhalb der Kupplungslemente 21 eingebaut sein.The clutch pressure members may be installed below or above the
Im Bereich der Stoßstelle zwischen den Stirnseiten benachbarter Wandelemente ist jeweils zumindest ein flächiges, elastisches Druckausgleichselement 6,7 formschlüssig angeordnet, welches in Fig.1 und Fig.6 abgebildet ist, das einen keilförmigen Querschnitt aufweist und dadurch eine Beschädigung der Wandelemente bei einem Auslenken derselben während eines seitlichen Anfahrens vermeiden oder zumindest verringern hilft, sodaß die erfindungsgemäße Leitwand auch nach einer durch ein Kraftfahrzeug verursachten Verschiebung weiter verwendbar istIn the region of the joint between the end faces of adjacent wall elements, at least one planar elastic
Die Form des Druckausgleichselements 6, 7 ist dem Verlauf des kürzeren L-Schenkels 81 angepaßt.The shape of the
Claims (16)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0012500A AT413831B (en) | 2000-01-27 | 2000-01-27 | CONCRETE WALL ELEMENT FOR A RESTRAINT SYSTEM ON ROADS |
| EP00890369A EP1124014B1 (en) | 2000-01-27 | 2000-12-11 | Concrete wall element for guardrail on roads |
Related Parent Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00890369A Division EP1124014B1 (en) | 2000-01-27 | 2000-12-11 | Concrete wall element for guardrail on roads |
| EP00890369.2 Division | 2000-12-11 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1650353A2 true EP1650353A2 (en) | 2006-04-26 |
| EP1650353A3 EP1650353A3 (en) | 2008-11-05 |
| EP1650353B1 EP1650353B1 (en) | 2012-02-22 |
Family
ID=3634210
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06001661A Expired - Lifetime EP1650353B1 (en) | 2000-01-27 | 2000-12-11 | Concrete wall element for guardrail on roads |
| EP00890369A Expired - Lifetime EP1124014B1 (en) | 2000-01-27 | 2000-12-11 | Concrete wall element for guardrail on roads |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00890369A Expired - Lifetime EP1124014B1 (en) | 2000-01-27 | 2000-12-11 | Concrete wall element for guardrail on roads |
Country Status (5)
| Country | Link |
|---|---|
| EP (2) | EP1650353B1 (en) |
| AT (3) | AT413831B (en) |
| DE (1) | DE50014064D1 (en) |
| DK (1) | DK1124014T3 (en) |
| ES (2) | ES2281339T3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2236675A2 (en) | 2009-04-03 | 2010-10-06 | Rudus Betonituote Oy | Barrier comprising barrier elements and a method for connecting and disconnecting barrier elements to and from each other |
| DE102009021810A1 (en) | 2009-05-18 | 2010-11-25 | Heintzmann Sicherheitssysteme Gmbh & Co. Kg | Vehicle restraint system |
| NL2022924B1 (en) * | 2019-04-11 | 2020-10-20 | Laura Metaal Holding B V | Friction-increasing element for attachment to a roadblock, and roadblock provided with at least one such friction-increasing element |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT413711B (en) * | 2001-08-14 | 2006-05-15 | Maba Fertigteilind Gmbh | CONCRETE WALL ELEMENT |
| AT502959B1 (en) * | 2005-11-24 | 2008-02-15 | Maba Fertigteilind Gmbh | Concrete barrier ELEMENT |
| DE102006053341A1 (en) * | 2006-11-10 | 2008-05-15 | Max Bögl Bauunternehmung GmbH & Co. KG | Concrete guide wall for trapping vehicle, has rope loop connecting concrete guide wall with adjacent concrete guide wall at its front surface, where rope loop projects over front surface of concrete guide wall |
| AT509359B1 (en) | 2010-01-21 | 2012-02-15 | Rebloc Gmbh | DISTRIBUTION ELEMENT FOR TRAFFIC SURFACES |
| US20200217028A1 (en) * | 2017-08-25 | 2020-07-09 | Nutech Ventures, Inc. | Barrier System |
| CN113529595B (en) * | 2021-06-25 | 2022-06-07 | 湖南有色冶金劳动保护研究院有限责任公司 | Mine mining safety device |
| CN113502753A (en) * | 2021-08-13 | 2021-10-15 | 成都建工路桥建设有限公司 | Bridge assembly type prefabricated guardrail installation construction method |
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| JPH0742124A (en) * | 1993-05-28 | 1995-02-10 | Asahi Concrete Works Co Ltd | Concrete guard fence |
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| AT405851B (en) * | 1997-01-17 | 1999-12-27 | Maba Fertigteilind Gmbh | Barrier for traffic routes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US1726267A (en) * | 1928-06-30 | 1929-08-27 | John W Higgins | Guide rail for highways |
| FR2788287B1 (en) * | 1998-10-28 | 2001-03-30 | Francois Xavier Pozin | SAFETY BARRIERS WITH INTEGRATED LINK |
-
2000
- 2000-01-27 AT AT0012500A patent/AT413831B/en not_active IP Right Cessation
- 2000-12-11 DK DK00890369T patent/DK1124014T3/en active
- 2000-12-11 ES ES00890369T patent/ES2281339T3/en not_active Expired - Lifetime
- 2000-12-11 DE DE50014064T patent/DE50014064D1/en not_active Expired - Lifetime
- 2000-12-11 AT AT06001661T patent/ATE546589T1/en active
- 2000-12-11 EP EP06001661A patent/EP1650353B1/en not_active Expired - Lifetime
- 2000-12-11 AT AT00890369T patent/ATE353996T1/en active
- 2000-12-11 ES ES06001661T patent/ES2385228T3/en not_active Expired - Lifetime
- 2000-12-11 EP EP00890369A patent/EP1124014B1/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0258610A (en) * | 1988-08-23 | 1990-02-27 | Ishikawajima Constr Materials Co Ltd | Repair of median strip and fender block used therefor |
| NL8902733A (en) * | 1989-11-06 | 1991-06-03 | Prins Nv | Traffic-guide member - has lengthwise profiled c-section components stacked in columns and spaced apart |
| JPH0742124A (en) * | 1993-05-28 | 1995-02-10 | Asahi Concrete Works Co Ltd | Concrete guard fence |
| FR2714406A1 (en) * | 1993-12-28 | 1995-06-30 | Sabla Sa | Motor road safety barrier |
| FR2733259A3 (en) * | 1995-04-21 | 1996-10-25 | Spacek Zdenek | Modular construction crash barrier for road |
| US5685665A (en) * | 1996-05-09 | 1997-11-11 | Lembo; M. Carl | Roadway barrier and method of installation |
| AT405851B (en) * | 1997-01-17 | 1999-12-27 | Maba Fertigteilind Gmbh | Barrier for traffic routes |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2236675A2 (en) | 2009-04-03 | 2010-10-06 | Rudus Betonituote Oy | Barrier comprising barrier elements and a method for connecting and disconnecting barrier elements to and from each other |
| DE102009021810A1 (en) | 2009-05-18 | 2010-11-25 | Heintzmann Sicherheitssysteme Gmbh & Co. Kg | Vehicle restraint system |
| WO2010133191A1 (en) | 2009-05-18 | 2010-11-25 | Heintzmann Sicherheitssysteme Gmbh & Co. Kg | Vehicle restraint system |
| NL2022924B1 (en) * | 2019-04-11 | 2020-10-20 | Laura Metaal Holding B V | Friction-increasing element for attachment to a roadblock, and roadblock provided with at least one such friction-increasing element |
| EP3722508A3 (en) * | 2019-04-11 | 2020-10-28 | Laura Metaal Holding B.V. | Friction-increasing element for attachment to a roadblock, and roadblock provided with at least one such friction-increasing element |
| US11639587B2 (en) | 2019-04-11 | 2023-05-02 | L Metaal Acquisition, Inc. | Friction-increasing element for attachment to a roadblock, and roadblock provided with at least one such friction-increasing element |
| US12110644B2 (en) | 2019-04-11 | 2024-10-08 | Roadblock Solutions, Inc. | Friction-increasing element for attachment to a roadblock, and roadblock provided with at least one such friction-increasing element |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA1252000A (en) | 2005-10-15 |
| EP1124014A3 (en) | 2004-01-02 |
| AT413831B (en) | 2006-06-15 |
| DE50014064D1 (en) | 2007-03-29 |
| ES2385228T3 (en) | 2012-07-19 |
| ES2281339T3 (en) | 2007-10-01 |
| EP1124014A2 (en) | 2001-08-16 |
| EP1650353B1 (en) | 2012-02-22 |
| EP1124014B1 (en) | 2007-02-14 |
| EP1650353A3 (en) | 2008-11-05 |
| ATE546589T1 (en) | 2012-03-15 |
| ATE353996T1 (en) | 2007-03-15 |
| DK1124014T3 (en) | 2007-06-11 |
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