EP1784541B1 - Restraint system for roadways - Google Patents
Restraint system for roadways Download PDFInfo
- Publication number
- EP1784541B1 EP1784541B1 EP04740678.0A EP04740678A EP1784541B1 EP 1784541 B1 EP1784541 B1 EP 1784541B1 EP 04740678 A EP04740678 A EP 04740678A EP 1784541 B1 EP1784541 B1 EP 1784541B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- restraint system
- posts
- spacer
- damping
- spars
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000013016 damping Methods 0.000 claims description 31
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000010348 incorporation Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0407—Metal rails
- E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means
-
- 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
- E01F15/0407—Metal rails
- E01F15/0423—Details of rails
- E01F15/043—Details of rails with multiple superimposed members; Rails provided with skirts
Definitions
- the invention relates to a restraint system for carriageways, which has posts fixed to the ground and to the posts, incorporating spacers, spars, according to the preamble of claim 1.
- This restraint system consists of vertical posts with foot plates, which are fixed on the structures. Horizontal security elements as a handrail are connected to the posts. The spars are connected via spacers or damping elements in each case with the posts. Between the posts are also pressryogllungen attached. Even if the distance or damping elements in various ways with the posts or the bars can be connected, an advantageous connection is seen in a screw connection.
- the fastening by means of screws is simple, reliable and easy to assemble and repair.
- the upper damping elements consist of a steel profile in the form of an inside open '8' and are similar to two extended by an arc 'S', whose ends are connected by two webs. These three semicircles of the extended by an arc 'S' are pushed together on impact by a vehicle and thus dampen the impact energy.
- the inner and outer bows can be adapted to the requirements in terms of size and position.
- these damper webs each have two outgoing arches and an inward going arc.
- the transition between the mounting webs and the damper webs is evenly through the first arc between the two mounting webs of the damping element and the vertical post or the inner leg of the spars can be mounted to increase the load bearing capacity in each case a feed element.
- a feed element is mounted only between the damping element and the inner leg of the spars.
- the chuck element has at least two holes and is clamped by the guard rail screws between the damping element and the inner leg of the guard rail spars.
- the lining element may be made of a metallic material z. B. steel but also be made of plastic or rubber.
- This basic structure is designed so that it can be easily modified according to the locally required retention level.
- this restraint system can be used both on a median strip between two driveways as well as the edge of a guideway.
- the construction of the restraint system is simple and economical.
- the used damping elements fulfill their function reliably.
- the steel profiles of the damping elements can be efficiently produced in large quantities at low cost. In practical experiments, a very good start-up behavior was achieved.
- An advantageous embodiment of the restraint system according to the invention is seen in that below the upper spar a second spar is arranged. This embodiment is preferably used when an underrun protection is required in addition.
- the upper spars can be usefully attached at a mean height Ho of 500 mm to 800 mm to the driveway, preferably they are mounted at a mean height Ho of 600 mm to 700 mm.
- the lower spars can be usefully attached at a mean height Hu of 130 mm to 370 mm to the driveway, preferably they are mounted in a mean height Hu of 200 mm to 300 mm.
- a handrail which is connected to the upper ends of the posts can be provided on the restraint system.
- the damping elements may consist inter alia of a special hollow profile or of a material with steel-like properties.
- the shape of the special hollow profile can be z. B. be an inside open 8 or 6-or 8-square and / or these shapes similar profiles.
- restraint system consists of edge of a roadway or corresponding structures in the ground anchored foot plates (5).
- the foot plates (5) are z. B. by dowels (8) attached to the roadway or corresponding structures.
- the vertical posts (4) are mounted on the foot plates.
- stiffening plates (9) are mounted between the foot plate (5) and the posts (4) on the side not facing the roadway.
- the required tolerance compensation (7) to the structure is made using a mortar layer, rubber plates or other plastic plates. Preferably by EPDM plates.
- the spars (2a, 2b) are formed from weft-wise juxtaposed profiles (shots), which have a U-shaped, W-shaped or similar configuration in cross-section.
- the distance or damping elements (3a, 3b) are horizontal in their effective direction (see Fig. 1 ) attached to the post.
- Each post (4) consists of an I, C or similar profile (eg closed).
- the central web of the profile extends transversely to the bars (2a, 2b).
- the spacer or damping elements are screwed or attached with other fasteners.
- FIG. 2 shows the restraint system in a horizontal view from the roadway in the direction of impact and FIG. 3 shows the restraint system from above.
- the spars (2a, 2b) are, as described above, fixed in two different heights.
- the upper spar (2b) is closer to the track than the lower spar (2a).
- the spars (2a, 2b) can also be mounted at the same distance from the roadway and the lower spar (2a) can be closer to the track than the upper spar (2b).
- the ratio of the distance Ao of the front side of the upper tie rod (2b) from the post (4) to the distance Au of the front of the lower tie rod (2a) to the post (4) is in a range between 3.0: 1 to 1.0: 1, preferably 1.94: 1.
- the upper and lower damping elements (3a, 3b) used on the upper and lower spars (2a, 2b) may be the same or different in shape, size and rigidity.
- a lining element Between the two fastening webs (14) of the damping element (3a, 3b) and the vertical posts (4) and the inner leg of the spars (2a, 2b) can be additionally mounted to increase the load-carrying capacity in each case a lining element.
- a lining element Preferably, only between the upper damping element (3a) and the inner leg of the upper spars (2b) a lining element (11) is mounted.
- the chuck element (11) has at least two holes and is clamped by the guard rail screws between the upper damping element (3a) and the inner leg of the upper spars (2b).
- the lining element (11) can be made of a metallic material such. B. steel but also be made of plastic or rubber.
- the upper spar (2b) is first contacted in each case.
- the first damping elements (3a) of the upper spar (2b) are deformed, as a result of which impact energy is dissipated.
- the posts (4) remain largely unencumbered in this deformation phase.
- the upper spar is thereby displaced so far in the direction of the posts (4) until the repellent away from the track back / surface on the post (4) is applied or the damping element is completely compressed. In this way, the post (4) until then largely without large force influence. Only in a second deformation phase, the force on the post (4) goes over. However, the protective function is still maintained despite a strong Auffahrbelastung.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Bridges Or Land Bridges (AREA)
Description
Die Erfindung betrifft ein Rückhaltesystem für Fahrbahnen, welches am Boden befestigte Pfosten und an den Pfosten, unter Eingliederung von Distanzelementen, Holme aufweist, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a restraint system for carriageways, which has posts fixed to the ground and to the posts, incorporating spacers, spars, according to the preamble of claim 1.
Aus den Dokumenten
Basierend auf den Vergaben des BMV (RPS, RIZ etc.) werden derzeit an Schnellstraßen, Autobahnen und insbesondere auf Brückenbauwerken Stahlschutzplanken und Geländer eingebaut. Durch die Einführung der DIN EN 1317 müssen diese Systeme entsprechend geprüft werden. Herkömmliche Geländerkonstruktionen halten den Prüfbedingungen nicht Stand, so dass diese verstärkt werden müssen und somit auch eine Schutzplanken-Funktion erfüllen, was zur Folge hat, dass separate Schutzplankenkonstruktionen bei bestimmten Bauwerken, insbesondere Überführungen, entbehrlich werden. An den Pfosten sind fahrwegseitig Deformationsprofile sowie Längsholme angebracht. Wenn ein Fahrzeug gegen das Rückhaltesystem fährt, wird zunächst das Deformationsprofil eingedrückt, ohne dass der dahinter liegende Pfosten in Mitleidenschaft gezogen wird. Wenn aufgrund des Anpralls das Deformationsprofil im unteren Bereich vollständig eingedrückt ist, geht die Krafteinwirkung auf den dahinter liegenden Pfosten über.
Diese bekannten Rückhaltesysteme sind kostenintensiv, schwer und genügen nicht den hohen Sicherheitsanforderungen.
Der Erfindung liegt daher, ausgehend vom Stand der Technik die Aufgabe zugrunde, ein leichtes und kostengünstiges Rückhaltesystem zu schaffen, das die hohen Sicherheitsanforderungen erfüllt.
Die Lösung dieser Aufgabe besteht in der Erfindung eines Rückhaltesystem gemäß Anspruch 1.Based on the award of the BMV (RPS, RIZ etc.) steel barriers and railings are currently being installed on highways, highways and especially on bridge structures. Due to the introduction of DIN EN 1317, these systems must be tested accordingly. Conventional railing constructions do not withstand the test conditions, so that they must be strengthened and thus also fulfill a guard rail function, with the result that separate guard rail structures in certain structures, especially overpasses, unnecessary. On the posts deformation profiles and longitudinal beams are attached on the way. When a vehicle drives against the restraint system, the deformation profile is first pressed in without the post behind it being affected. If, due to the impact, the deformation profile in the lower area is completely depressed, the force on the post behind goes over.
These known restraint systems are costly, heavy and do not meet the high security requirements.
The invention is therefore based on the object of the prior art to provide a lightweight and cost-effective restraint system that meets the high security requirements.
The solution to this problem consists in the invention of a restraint system according to claim 1.
Dieses Rückhaltesystem besteht aus senkrechten Pfosten mit Fußplatten, welche auf den Bauwerken befestigt werden. Waagerechte Sicherheitselemente als Handlauf sind mit den Pfosten verbunden. Die Holme sind über Distanz- oder Dämpfungselemente jeweils mit den Pfosten verbunden. Zwischen den Pfosten sind auch noch Geländerfüllungen angebracht. Auch wenn die Distanz- oder Dämpfungselemente auf unterschiedlichste Art mit den Pfosten bzw. den Holmen verbunden sein können, wird eine vorteilhafte Verbindung in einer schraubbaren Verbindung gesehen. Die Befestigung mittels Schrauben ist einfach, zuverlässig und montage- sowie reparaturfreundlich.This restraint system consists of vertical posts with foot plates, which are fixed on the structures. Horizontal security elements as a handrail are connected to the posts. The spars are connected via spacers or damping elements in each case with the posts. Between the posts are also Geländerfüllungen attached. Even if the distance or damping elements in various ways with the posts or the bars can be connected, an advantageous connection is seen in a screw connection. The fastening by means of screws is simple, reliable and easy to assemble and repair.
Die oberen Dämpfungselemente bestehen aus einem Stahlprofil in Form einer innen offenen '8' und ähneln zwei um einen Bogen verlängerten 'S', dessen Enden durch zwei Stege verbunden sind. Diese drei Halbkreise des um einen Bogen verlängerten 'S' werden beim Aufprall durch ein Fahrzeug zusammengeschoben und dämpfen somit die Aufprallenergie ab.
Man kann die oberen Dämpfungselemente bzw. -profile auch als ein aus zwei geraden und gegenüberliegenden Befestigungsstegen beschreiben von denen einer an den Pfosten und der andere an den inneren Schenkeln der Holme befestigt ist. Zwischen den beiden Befestigungsstegen die am Pfosten und an den inneren Schenkeln der Holme befestigt sind, befinden sich an den Enden der Befestigungsstege jeweils zwei gewellte Dämpfstege die aus mindestens zwei nach außen gehenden Bögen und mindestens einen nach innen gehenden Bogen bestehen. Dabei können die inneren bzw. die äußeren Bögen hinsichtlich Größe und Lage den Anforderungen angepasst werden. In ihrer bevorzugten Ausführungsform haben diese Dämpfstege jeweils zwei nach außen gehende Bögen und einen nach innen gehenden Bogen. Der Übergang zwischen den Befestigungsstegen und den Dämpferstegen ist durch den ersten Bogen gleichmäßig zwischen den beiden Befestigungsstegen des Dämpfungselementes und den senkrechten Pfosten bzw. dem inneren Schenkel der Holme können zur Erhöhung der Lastaufnahmefähigkeit noch zusätzlich jeweils ein Futterelement montiert werden. Vorzugsweise ist lediglich zwischen dem Dämpfungselement und dem inneren Schenkel der Holme ein Futterelement montiert. Das Futterelement weist mindestens zwei Bohrungen auf und wird durch die Leitplankenschrauben zwischen dem Dämpfungselement und dem inneren Schenkel der Leitplankenholme eingespannt. Das Futterelement kann aus einem metallischen Werkstoff z. B. Stahl jedoch auch aus Kunststoff bzw. Kautschuk sein.The upper damping elements consist of a steel profile in the form of an inside open '8' and are similar to two extended by an arc 'S', whose ends are connected by two webs. These three semicircles of the extended by an arc 'S' are pushed together on impact by a vehicle and thus dampen the impact energy.
One can also describe the upper damping elements or profiles as one of two straight and opposite fastening webs, one of which is fastened to the post and the other to the inner legs of the spars. Between the two fastening webs which are attached to the post and to the inner legs of the spars are located at the ends of the fastening webs each two corrugated Dämpfstege which consist of at least two outgoing sheets and at least one inward-going arc. The inner and outer bows can be adapted to the requirements in terms of size and position. In their preferred embodiment, these damper webs each have two outgoing arches and an inward going arc. The transition between the mounting webs and the damper webs is evenly through the first arc between the two mounting webs of the damping element and the vertical post or the inner leg of the spars can be mounted to increase the load bearing capacity in each case a feed element. Preferably, a feed element is mounted only between the damping element and the inner leg of the spars. The chuck element has at least two holes and is clamped by the guard rail screws between the damping element and the inner leg of the guard rail spars. The lining element may be made of a metallic material z. B. steel but also be made of plastic or rubber.
Dieser grundsätzliche Aufbau ist so konzipiert, dass er auf einfache Weise entsprechend der örtlich jeweils geforderten Aufhaltestufe modifiziert werden kann.This basic structure is designed so that it can be easily modified according to the locally required retention level.
Besonders vorteilhaft ist es jedoch, dass dieses Rückhaltesystem sowohl auf einem Mittelstreifen zwischen zwei Fahrwegen als auch randseitig eines Fahrwegs zum Einsatz gelangen kann.It is particularly advantageous, however, that this restraint system can be used both on a median strip between two driveways as well as the edge of a guideway.
Der Aufbau des Rückhaltesystems ist einfach und wirtschaftlich. Die zum Einsatz gelangenden Dämpfungselemente erfüllen ihre Funktion zuverlässig. Die Stahlprofile der Dämpfungselemente können rationell in hohen Stückzahlen kostengünstig hergestellt werden. In praktischen Versuchen wurde ein sehr gutes Anfahrverhalten erreicht.The construction of the restraint system is simple and economical. The used damping elements fulfill their function reliably. The steel profiles of the damping elements can be efficiently produced in large quantities at low cost. In practical experiments, a very good start-up behavior was achieved.
Beim Anprall eines Fahrzeugs wird zunächst mindestens ein Dämpfungselement eingedrückt, ohne dass zugleich der dahinter liegende Pfosten beschädigt wird. Bereits ein großer Teil der Stossenergie kann so durch die Deformation des Dämpfungselements kompensiert werden, ohne dass das Rückhaltesystem durchbrochen wird. Das Unfallfahrzeug wird entlang des Rückhaltesystem geführt. Erst nachdem das Dämpfungselement des unteren Holmstrangs vollständig eingedrückt ist, geht die Krafteinwirkung auf den oberen Leitplankenstrang und den Pfosten über.When a vehicle collides, at least one damping element is first pressed in, without at the same time damaging the post lying behind it. Already a large part of the impact energy can be compensated by the deformation of the damping element, without the restraint system is broken. The accident vehicle is guided along the restraint system. Only after the damping element of the lower stringer strand is fully depressed, the force is applied to the upper guard rail and the post over.
Eine vorteilhafte Ausführungsform des erfindungsgemäßen Rückhaltesystems wird darin gesehen, dass unterhalb des oberen Holmes ein zweiter Holm angeordnet ist. Diese Ausführungsform kommt vorzugsweise dann zum Einsatz, wenn zusätzlich ein Unterfahrschutz gefordert ist.An advantageous embodiment of the restraint system according to the invention is seen in that below the upper spar a second spar is arranged. This embodiment is preferably used when an underrun protection is required in addition.
Zur Absorbtion der Anprallenergie sind in einer weiteren Ausführungsform am Unterfahrschutz des Rückhaltesystems d.h. am unteren Holm Distanzelemente, die auch Dämpfungselemente sein können, vorgesehen, die einmal an den Pfosten und zum anderen an den inneren Schenkeln des unteren Holmes befestigt sind.To absorb the impact energy in a further embodiment of the underrun protection of the restraint system. at the lower spar spacers, which may also be damping elements, provided, which are fixed once to the post and the other to the inner legs of the lower spar.
Die oberen Holme können sinnvoll in einer mittleren Höhe Ho von 500 mm bis 800 mm zum Fahrweg befestigt werden, vorzugsweise sind sie in einer mittleren Höhe Ho von 600 mm bis 700 mm angebracht.The upper spars can be usefully attached at a mean height Ho of 500 mm to 800 mm to the driveway, preferably they are mounted at a mean height Ho of 600 mm to 700 mm.
Die unteren Holme können sinnvoll in einer mittleren Höhe Hu von 130 mm bis 370 mm zum Fahrweg befestigt werden, vorzugsweise sind sie in einer mittleren Höhe Hu von 200 mm bis 300 mm angebracht.The lower spars can be usefully attached at a mean height Hu of 130 mm to 370 mm to the driveway, preferably they are mounted in a mean height Hu of 200 mm to 300 mm.
Ist entlang der Fahrbahn unter anderem ein weiterer Weg vorgesehen, beispielsweise an für Personen besonders gefährlichen Stellen, kann am Rückhaltesystem ein Handlauf, der mit den oberen Enden der Pfosten verbunden ist, vorgesehen werden.If, inter alia, another route is provided along the roadway, for example to places which are particularly dangerous for persons, a handrail which is connected to the upper ends of the posts can be provided on the restraint system.
Die Dämpfungselemente können unter anderem aus einem Sonderhohlprofil oder aus einem Material mit stahlähnlichen Eigenschaften bestehen.
Die Form des Sonderhohlprofils kann dabei z. B. die einer innen offenen 8 bzw. 6-oder 8-eckig bzw. und/oder dieser Formen ähnliche Profile sein.The damping elements may consist inter alia of a special hollow profile or of a material with steel-like properties.
The shape of the special hollow profile can be z. B. be an inside open 8 or 6-or 8-square and / or these shapes similar profiles.
Die Erfindung ist nachfolgend anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher beschrieben. Es zeigen:
- Figur 1
- Querschnitt des Rückhaltesystems
- Figur 2
- Frontansicht eines Längenabschnittes des Rückhaltesystems
- Figur 3
- Draufsicht eines Längenabschnittes des Rückhaltesystems
Figur 4- Querschnitte des Dämpferprofils
- FIG. 1
- Cross section of the restraint system
- FIG. 2
- Front view of a length of the restraint system
- FIG. 3
- Top view of a length section of the restraint system
- FIG. 4
- Cross sections of the damper profile
Das in der
Der erforderliche Toleranzausgleich (7) zum Bauwerk erfolgt über eine Mörtelschicht, Gummiplatten oder sonstiger Kunststoffplatten. Vorzugsweise durch EPDM-Platten.That in the
The required tolerance compensation (7) to the structure is made using a mortar layer, rubber plates or other plastic plates. Preferably by EPDM plates.
An den Pfosten (4) sind fahrbahnseitig, unter Eingliederung von Distanz- oder Dämpfungselementen (3a, 3b) in zwei verschiedenen Höhen Holme (2a, 2b) festgelegt, wobei der obere Holm (2b) näher zur Fahrbahn hin liegt als der untere Holm (2a).On the posts (4) roadway side, by incorporation of distance or damping elements (3a, 3b) in two different heights spars (2a, 2b) set, the upper spar (2b) closer to the roadway than the lower spar ( 2a).
Die Holme (2a, 2b) sind aus schussweise aneinander gesetzten Profilen (Schüsse) gebildet, welche im Querschnitt eine U-, W-förmige oder ähnliche Konfiguration besitzen.The spars (2a, 2b) are formed from weft-wise juxtaposed profiles (shots), which have a U-shaped, W-shaped or similar configuration in cross-section.
Die Distanz- oder Dämpfungselemente (3a, 3b) sind in ihrer Wirkrichtung waagerecht (siehe
Jeder Pfosten (4) besteht aus einem I-, C-förmigen oder ähnlichen Profil (z. B. geschlossen). Der Mittelsteg des Profils erstreckt sich quer zu den Holmen (2a, 2b). An den fahrbahnseitigen Steg sind die Distanz- oder Dämpfungselemente angeschraubt oder mit anderen Befestigungsmitteln angebracht.Each post (4) consists of an I, C or similar profile (eg closed). The central web of the profile extends transversely to the bars (2a, 2b). At the roadway-side web, the spacer or damping elements are screwed or attached with other fasteners.
Die Holme (2a, 2b) sind, wie zuvor beschrieben, in zwei verschiedenen Höhen festgelegt. Vorzugsweise liegt der obere Holm (2b) näher zum Fahrweg als der untere Holm ( 2a). Die Holme (2a, 2b) können jedoch auch im gleichen Abstand zur Fahrbahn angebracht werden und der untere Holm (2a) kann näher zum Fahrweg als der obere Holm (2b) liegen. Vorzugsweise liegt das Verhältnis des Abstands Ao der Vorderseite des oberen Holmstrangs ( 2b) vom Pfosten (4) zum Abstand Au der Vorderseite des unteren Holmstrangs (2a) zum Pfosten (4) in einem Bereich zwischen 3,0 : 1 bis 1,0 : 1, vorzugsweise 1,94 : 1.The spars (2a, 2b) are, as described above, fixed in two different heights. Preferably, the upper spar (2b) is closer to the track than the lower spar (2a). However, the spars (2a, 2b) can also be mounted at the same distance from the roadway and the lower spar (2a) can be closer to the track than the upper spar (2b). Preferably, the ratio of the distance Ao of the front side of the upper tie rod (2b) from the post (4) to the distance Au of the front of the lower tie rod (2a) to the post (4) is in a range between 3.0: 1 to 1.0: 1, preferably 1.94: 1.
Die an den oberen und unteren Holmen (2a, 2b) verwendeten obere und untere Dämpfungselemente (3a, 3b) können sich hinsichtlich Form, Größe und Steifigkeit sowohl gleichen als auch unterschiedlich sein.The upper and lower damping elements (3a, 3b) used on the upper and lower spars (2a, 2b) may be the same or different in shape, size and rigidity.
Zwischen den beiden Befestigungsstegen (14) des Dämpfungselementes (3a, 3b) und den senkrechten Pfosten (4) bzw. dem inneren Schenkel der Holme (2a, 2b) können zur Erhöhung der Lastaufnahmefähigkeit noch zusätzlich jeweils ein Futterelement montiert werden. Vorzugsweise ist lediglich zwischen dem oberen Dämpfungselement (3a) und dem inneren Schenkel der oberen Holme (2b) ein Futterelement (11) montiert. Das Futterelement (11) weist mindestens zwei Bohrungen auf und wird durch die Leitplankenschrauben zwischen dem oberen Dämpfungselement (3a) und dem inneren Schenkel der oberen Holme (2b) eingespannt.
Das Futterelement (11) kann aus einem metallischen Werkstoff wie z. B. Stahl jedoch auch aus Kunststoff bzw. Kautschuk sein.Between the two fastening webs (14) of the damping element (3a, 3b) and the vertical posts (4) and the inner leg of the spars (2a, 2b) can be additionally mounted to increase the load-carrying capacity in each case a lining element. Preferably, only between the upper damping element (3a) and the inner leg of the upper spars (2b) a lining element (11) is mounted. The chuck element (11) has at least two holes and is clamped by the guard rail screws between the upper damping element (3a) and the inner leg of the upper spars (2b).
The lining element (11) can be made of a metallic material such. B. steel but also be made of plastic or rubber.
Beim Aufprallvorgang eines Fahrzeugs wird zunächst jeweils der obere Holm (2b) kontaktiert. Hierbei werden in Abhängigkeit von der Anprallenergie als erstes Dämpfungselemente (3a) des oberen Holms (2b) deformiert, wodurch Stossenergie abgebaut wird. Die Pfosten (4) bleiben in dieser Deformationsphase weitgehend unbelastet. Der obere Holm wird dabei so weit in Richtung zu den Pfosten (4) verlagert, bis die vom Fahrweg abweisende Rückseite/-fläche am Pfosten (4) anliegt oder das Dämpfungselement vollständig zusammengedrückt ist. Auf diese Weise bleibt der Pfosten (4) bis dahin weitgehend ohne großen Krafteinfluß. Erst in einer zweiten Deformationsphase geht die Krafteinwirkung auf den Pfosten (4) über. Die Schutzfunktion bleibt jedoch trotz einer starken Auffahrbelastung nach wie vor erhalten.During the collision process of a vehicle, the upper spar (2b) is first contacted in each case. In this case, depending on the impact energy, the first damping elements (3a) of the upper spar (2b) are deformed, as a result of which impact energy is dissipated. The posts (4) remain largely unencumbered in this deformation phase. The upper spar is thereby displaced so far in the direction of the posts (4) until the repellent away from the track back / surface on the post (4) is applied or the damping element is completely compressed. In this way, the post (4) until then largely without large force influence. Only in a second deformation phase, the force on the post (4) goes over. However, the protective function is still maintained despite a strong Auffahrbelastung.
- a) ein Stahlprofil in Form einer innen offenen '8' und ähnelt zwei um einen Bogen verlängerten 'S', dessen Enden durch zwei Stege verbunden sind.
- b) Profil bestehend aus zwei geraden und gegenüberliegenden Befestigungsstegen (14) beschreiben von denen einer an den Pfosten und der andere an den inneren Schenkeln der Holme befestigt ist. Zwischen den beiden Befestigungsstegen (14) die am Pfosten und am inneren Schenkel der Holme befestigt sind, befinden sich an den Enden der Befestigungsstege (14) jeweils zwei gewellte Dämpfstege die aus mindestens zwei nach außen gehenden Bögen (12) und mindestens einen nach innen gehenden Bogen (13) bestehen. Dabei können die inneren bzw. die äußeren Bögen hinsichtlich Größe und Lage den Anforderungen angepasst werden.
- a) a steel profile in the form of an inside open '8' and is similar to two extended by a bow 'S', whose ends are connected by two webs.
- b) profile consisting of two straight and opposite fastening webs (14) describe one of which is attached to the post and the other to the inner legs of the spars. Between the two fastening webs (14) which are attached to the post and the inner leg of the spars are located at the ends of the fastening webs (14) in each case two corrugated Dämpfstege consisting of at least two outgoing sheets (12) and at least one going inward Bow (13) exist. The inner and outer bows can be adapted to the requirements in terms of size and position.
- 11
- - Handlauf- Handrail
- 2a2a
- - unterer Holm- lower spar
- 2b2 B
- - oberer Holm- upper spar
- 3a3a
- - oberes Distanz- oder Dämpfungselement- Upper spacer or damping element
- 3b3b
- - unteres Distanz- oder Dämpfungselement- Lower spacer or damping element
- 44
- - Pfosten- posts
- 55
- - Fußplatte- Foot plate
- 66
- - Befestigungselement- fastener
- 77
- - Höhenausgleich- height compensation
- 88th
- - z. B. Dübel- z. B. dowels
- 99
- - Aussteifungsblech- stiffening plate
- 1010
- - Fahrbahn- Roadway
- 1111
- - Futterelement- Feed element
- 1212
- - äußerer Bogen- outer bow
- 1313
- - innerer Bogen- inner bow
- 1414
- - Befestigungssteg- Fixing bar
Claims (9)
- Restraint system to be installed on the verge of a roadway or between two roadways, comprising posts (4) fixed to the ground and to the posts (4) with incorporation of distance piece (3) fixed beams (2), whereby the distance pieces are fixed on one end to the posts (4) and on the other end to the inner bracket of the beam (2), whereby between an upper distance piece (3a) and the bracket of an upper beam (2b) is mounted a spacer (11) and the upper distance pieces (3a) are shaped as damping elements, characterized in that, the upper damping elements (3a) are shaped like an internal open 8, with respectively two by one arc extended S, which ends are connected by two straight and in opposition to each other mounting bars (14).
- Restraint system according to claim 1, characterized in that, also between the post (4) and the upper distance piece (3a) is mounted a spacer (11).
- Restraint system according to any of the preceding claims, characterized in that, the spacer (11) has at least two drill-holes and is mounted by at least two bolts between the upper distance piece (3a) and the inner bracket of the upper beam (2b).
- Restraint system according to any of the preceding claims, characterized in that, the spacer is made of steel.
- Restraint system according to any of the preceding claims, characterized in that, it comprises an upper and a lower beam (2a,2b).
- Restraint system according to any of the preceding claims, characterized in that, the lower beam (2a) has distance pieces (3b), fixed on one end to the posts (4) and on the other end to the inner bracket of the lower beam (2a).
- Restraint system according to claim 1, characterized in that, the lower distance piece (3b) is also a damping element similar to the upper damping element (3a).
- Restraint system according to any of the preceding claims, characterized in that, the posts are connected at their upper end by a handrail (1).
- Restraint system according to claim 1, characterized in that, the corrugated damping parts consists of at least two bent outward arcs (12) and at least one bent inward arc (13).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2004/007350 WO2006002680A1 (en) | 2004-07-06 | 2004-07-06 | Restraint system for roadways |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1784541A1 EP1784541A1 (en) | 2007-05-16 |
| EP1784541B1 true EP1784541B1 (en) | 2013-09-25 |
Family
ID=34957859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04740678.0A Expired - Lifetime EP1784541B1 (en) | 2004-07-06 | 2004-07-06 | Restraint system for roadways |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1784541B1 (en) |
| WO (1) | WO2006002680A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2136000A1 (en) * | 2008-06-16 | 2009-12-23 | Anas S.p.A. | Strain controlled universal spacer for guardrails |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19907954A1 (en) * | 1999-02-01 | 2000-08-03 | Sps Schutzplanken Gmbh | Passive road safety device for vehicle impact has roadside post supporting sidewalls mounted on shock absorbers which dissipate energy from vehicle impact |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG30024A3 (en) * | 1977-08-17 | 1981-03-16 | Ut-, Vasuttervezo Vallalat | Reflecting apparatus, especially for roads |
| DE3809896A1 (en) * | 1988-03-24 | 1989-10-12 | Spig Schutzplanken Prod Gmbh | Protective-barrier arrangement for roadways |
| FR2729980B1 (en) | 1995-02-01 | 1997-04-04 | Rambaud Pascal | ROAD SAFETY SLIDE WITH SHOCK ABSORBING DEVICE |
| ES2127594T3 (en) * | 1995-08-26 | 1999-04-16 | Spig Schutzplanken Prod Gmbh | PROTECTIVE FENCE ARRANGEMENT. |
| SE511024C2 (en) * | 1997-03-26 | 1999-07-26 | Blue Systems Ab | Crash barrier |
| US20040079932A1 (en) * | 2002-09-09 | 2004-04-29 | Isao Hanai | Shock-absorbing guardrail device |
-
2004
- 2004-07-06 EP EP04740678.0A patent/EP1784541B1/en not_active Expired - Lifetime
- 2004-07-06 WO PCT/EP2004/007350 patent/WO2006002680A1/en not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19907954A1 (en) * | 1999-02-01 | 2000-08-03 | Sps Schutzplanken Gmbh | Passive road safety device for vehicle impact has roadside post supporting sidewalls mounted on shock absorbers which dissipate energy from vehicle impact |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006002680A1 (en) | 2006-01-12 |
| EP1784541A1 (en) | 2007-05-16 |
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