EP0310754B1 - Dispositif de séparation - Google Patents

Dispositif de séparation Download PDF

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Publication number
EP0310754B1
EP0310754B1 EP88109450A EP88109450A EP0310754B1 EP 0310754 B1 EP0310754 B1 EP 0310754B1 EP 88109450 A EP88109450 A EP 88109450A EP 88109450 A EP88109450 A EP 88109450A EP 0310754 B1 EP0310754 B1 EP 0310754B1
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EP
European Patent Office
Prior art keywords
concrete
separation device
concrete elements
several
concrete element
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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EP88109450A
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German (de)
English (en)
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EP0310754A3 (en
EP0310754A2 (fr
Inventor
Hans Dieter Dipl.-Ing. Schönborn
Alois Reiff
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Reiff-Beton & Co Kg GmbH
Original Assignee
Reiff-Beton-Rohr & Co Kg GmbH
Reiff-Beton-Rohr & Co Kg GmbH
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Priority to AT88109450T priority Critical patent/ATE58928T1/de
Publication of EP0310754A2 publication Critical patent/EP0310754A2/fr
Publication of EP0310754A3 publication Critical patent/EP0310754A3/de
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Publication of EP0310754B1 publication Critical patent/EP0310754B1/fr
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
    • 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
    • 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
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
    • E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like

Definitions

  • the invention relates to a separating device which consists of lined up, interconnected concrete elements which are arranged in a wall-like manner between opposing carriageways or on the edges of roads or the like, the mutually identical concrete elements having a prism shape and with their perpendicular prism bases in the wall-shaped one Arrangement in the manner of end faces face each other and have a polygonal cross-sectional shape and a correspondingly divided jacket shape, in which one surface is designed as a standing surface (standing surface), while the other surfaces run perpendicularly and / or diagonally ascending or horizontally and as sliding surfaces , Visible surfaces, mounting surfaces or the like are configured.
  • a separation device made from individual elements is also reported. Although these concrete elements have a relatively low weight, they do not provide sufficient stability in the event of an impact. The end faces are also perpendicular to the longitudinal axis. The concrete elements are connected to each other with the help of plug-in plugs. The dangerous corners mentioned cannot be avoided. Universal use, i.e. for purposes other than creating separators is not possible.
  • the connecting elements - e.g. the plug-in plugs - hardly able to withstand the start-up loads
  • the separating device according to DE-A 1 534 470 is also made of concrete elements. Also with these concrete elements, high weight and ground friction allow the impact forces to be consumed. The concrete elements are additionally secured by chains against excessive impact forces. This ket ten run through horizontal longitudinal holes and can be tensioned. In order for this bracing to be possible, the concrete elements are laterally offset from one another. The end faces of these concrete elements can be slightly spherical and also slightly concave. However, the tangential plane on the curved end faces is essentially perpendicular to the length. If two concrete elements with spherical end faces meet, there are dangerous gaps through which free-standing corners are created, which vehicles can collide with frontally.
  • the separating device according to DE-U 8 708 908 consists of fittings which are toothed or toothed on at least one side.
  • a separating device can be created by means of intermediate pieces with teeth or other shaped pieces, in which the individual elements are positively connected over a large area. Molded parts of this type are difficult to manufacture from concrete, i.e. correspondingly expensive. Handling, i.e. the assembly to the separating device, becomes difficult if the teeth have to be inserted into each other, but the large weight of a concrete body has to be moved. Therefore, the separator can only be made from molded parts made of lightweight materials, e.g. Recycled plastic. The resistance to impact is too low with such materials, and the weight is not sufficient to withstand displacement forces.
  • the molded parts should be hollow bodies that are filled with ballast. Liquid or powdered ballast is extremely dangerous because if the hollow body is damaged, it can cause dirt on the road surface. Although this known separating device has no dangerous exposed corners, it is not practical for the reasons described.
  • the separating device according to FR-A 2 585 047 also consists of molded parts which are made of plastic or steel and are designed as hollow bodies which have to be filled with ballast. Such molded parts are not practical for the reasons already mentioned.
  • FR-A 2 557 896 discloses concrete elements for creating separating devices of the type mentioned at the beginning. End faces running at right angles to the longitudinal axis lead to the dangerous exposed corners.
  • the invention has for its object to provide a separating device of the type mentioned, in which concrete elements are used, which are designed so that, despite the possibility of creating curved wall profiles, they border one another without gaps, one Frontal impact against a sharp corner reliably prevent them easily or without much assembly work to a partition or the like. are connectable and can also be used universally.
  • the above-mentioned separating device is characterized according to the invention in that the concrete elements are designed as inclined prisms with mutually parallel end faces, which are inclined at an angle of 45 ° to the prism length, that these end faces in the wall-shaped arrangement of the concrete elements on the Direction opposite to the traffic direction on the side facing traffic at an obtuse angle to the length of the prism and in the wall-shaped arrangement, with at least partially mutually contacting end faces, form a positive and non-positive connection of adjacent concrete elements.
  • the concrete elements have perpendicular end faces, but inclined at an angle of 45 ° to the length, and they are each arranged in such a way that the corner opposite the direction of traffic, ie the angle between the end face and the outer surface, is obtuse, ie 135 ° in size , is.
  • the concrete elements are offset so that they touch each other with the end faces at least in some areas.
  • This configuration is independent of the specific cross-sectional shape of the concrete element in each case. Concrete elements in the shape of a truncated pyramid, trapezoidal or the links in cross-section can thus be designed differently, without the cross-sectional shape having an influence on the particular configuration of the end faces and thus impairing the advantages which result from this configuration.
  • the inclined end faces make it possible to erect dividing devices in an arc shape, i.e. to provide road or road curves with separating devices, and that even in this case a complete coverage is ensured on the concave side of the arch that is at risk.
  • the described force-transmitting effects become effective, and there is the possibility of reliably avoiding a frontal impact on a corner at a 90 ° angle. Since the concave side is always the endangered side of roadways, which must absorb impacting vehicles and which is subjected to high forces in the event of an impact, the separating device designed according to the invention offers a level of safety not previously achieved.
  • the concrete elements of the device designed according to the invention are always directed at an obtuse angle to the traffic, it is necessary to produce a left and a right version, depending on whether the concrete elements, seen in the direction of travel, to the left of the road or to the right the lane. If the concrete elements are to be used in areas with left-hand traffic, the requirements for left-hand or right-hand execution are reversed.
  • the separating device optimally fulfills its purpose, the requirement mentioned several times must be made that the individual element is able, due to its own properties, to absorb the impact of a vehicle with as little or as little as possible slipping.
  • One way of fulfilling this requirement is to make the concrete elements difficult to make so that they can be moved with difficulty by an impact due to their high weight and thus the mass of the support as well as their high resistance to displacement. But there are limits to this path.
  • the manageability when transporting and setting up the concrete elements limits the weight increase.
  • the concrete elements of the separating device designed according to the invention can only be made as long and thus as difficult as is manageable, etc. in the context of manageability. However, this path can only be followed without disadvantages if the concrete elements are to be used to create separating devices which are straight or only slightly curved.
  • DE-U 7 420 685 discloses, as a replacement for straw bales, which are intended to prevent in motorcycle racing that motorcycle riders crash into the sharp-edged guardrails, so-called impact absorbers in pieces of approximately 10 m in length, which are given as flexible pads by air or seagrass filling or the like and strapped to the guard rails. Gaps could form at adjacent ends of these tubular cushioning elements because of their deformation, and the motorcycle rider could still crash into the guardrail posts through the gaps. Therefore the ends are overlapped, either the stepped or oblique. The overlap is chosen so that the direction of travel faces either a corner with step shape or an obtuse angle with sloping ends. An impact on a corner is harmless due to the flexibility of the impact pads.
  • the slanted final design has nothing in common with the invention, because cushions are flexible, they are attached to the guide posts and they do not transmit any impact forces in the sense of a partition.
  • the concrete element is coated with an elastic material on the end faces at least in areas near the edges, on the outer surfaces at least in areas near the end faces. This protects the surfaces. The friction between the parts increases and with it the power transmission from one element to the other, so that the elements stick together like a closed wall.
  • Elastic knobs which are arranged in the surface of the concrete element on the end faces or the standing surface, have the advantage that, as it were, they offer mutual resistance from end face to end face, so that sliding against each other touching end faces is avoided.
  • the elastic knobs on the base adapt to the surface and increase the resistance to displacement.
  • this measure also makes installation work easier and the preparation of the sub-floor no longer needs to be so precise because the knobs compensate for irregularities.
  • the elastic knobs allow the concrete elements to be placed very close to one another, so that they are already in contact with one another, so to speak, without causing any disadvantages. Concrete elements are also subject to thermal expansion in strong sunlight. The elastic knobs absorb these thermal expansions by deforming.
  • the concrete elements can be placed against one another with the end faces on pre-pressure, so that they are clamped or clamped in the frame of the separating device. Thermal expansion is absorbed and compensated for in the manner already mentioned within the elastic material. It is of particular advantage in this development that pointed corners are generously rounded as far as the concrete body is concerned and that the addition to the target shape is made by the elastic material. In this way, safety is increased to a considerable degree, because even in the most adverse circumstances, vehicles hitting in extremely disadvantageous directions encounter resilient material, which reduces the impact and reduces impact damage. But the concrete element itself also benefits from this development, because the corners and edges of a concrete body are in danger of being destroyed, but an elastic material absorbs forces that could damage the corner of a concrete body through elastic deformation.
  • An alternative or additionally applicable development of the separating device is characterized in accordance with claim 7, characterized in that the standing surface of the concrete element is divided into at least two partial surfaces by means of at least one channel which is open at the bottom and runs transverse to the length.
  • the displacement resistance of the individual concrete element increases against displacement forces in the longitudinal direction and against forces acting obliquely to the length, because the gravel-like or sand-like subsurface to a certain extent penetrates into the grooves.
  • the further advantage is, however, that when the device is set up on the roadway, it can be drained through the separating device. To avoid aquaplaning and ice formation, this training is very significant Advantage.
  • a further advantageous embodiment of the separating device according to the invention is that the base surface of the concrete element is divided by offset, for example cross-shaped grooves, which form individual feet.
  • This training can be used in addition to those already mentioned or alternatively.
  • successive concrete elements are mechanically connected to one another, as is already the case with the known separating device mentioned at the outset, it avoids the disadvantages associated with the known. Since the end walls are at an angle of 45 ° to the length of the concrete elements, there are no gaps and no right-angled corners that would cause a frontal impact. However, the considerable manufacturing and assembly work is also avoided, since the slots open from the base allow the double-conical connecting bolts to be placed on the ground and the concrete element to be placed on the connecting bolt from above. So there is no coupling, connection or assembly work.
  • the double-conical shape of the connecting bar serves to absorb any tensile forces that may have caused the contacting end faces of two concrete elements to be removed from one another. Even if the double-conical connecting bolts are adapted to the shape of the slots, this does not mean that they must fit into the slots without play. If you allow a certain amount of play and if you make the double-conical connecting bolts long in the middle, narrow area, the concrete elements can also be used when setting up a curved separating device.
  • the connecting bolt is designed as a steel-reinforced concrete bolt, designed to withstand certain loads up to certain values against longitudinal and transverse to the concrete elements, and on the middle of the length with a concrete breaking point that yields when the steel reinforcement remains under limit load is provided.
  • This development relates to the design of the connecting bolt in detail. If it is designed as a steel-reinforced concrete bar, it also has a high resistance to shear or compression, so that it is not only able to absorb and transmit pushing forces that act in the direction of pull, but primarily and to a particular extent pushing forces that generate pressure. It is essential, however, that a predetermined breaking point is created in the middle. This predetermined breaking point enables transverse forces to be absorbed up to certain heights. Even if the connecting bar breaks, the steel reinforcement maintains the connection between the two concrete elements. The success of this measure is that, in the event of a severe impact, slight displacements occur, but the mutual connection of the concrete elements within the separating device is not canceled or destroyed.
  • An alternative solution for a mutual connection of the concrete elements within the separating device is characterized according to claim 11, characterized in that the concrete elements on their end faces, arranged symmetrically to the longitudinal median plane, extending from the uppermost surface area to the bottom and widening in cross section at their ends remote from the end face have open top slots on the end faces and that an upper connecting bar is inserted from above into the top slots of two concrete elements adjoining one another with their end faces, which is cross-sectionally adapted to the shape of two adjoining top slots and is made of metal coated with elastic material on the outside consist.
  • the laying or assembly work may be even easier than with the aforementioned solution.
  • mutual connections of concrete elements can be produced even with a strong curvilinear course, because the slits extending downwards from the upper lateral surface allow the upper connecting bolts to be made of sheet metal, which is elastically and plastically coated, in accordance with Situation pre-bent and inserted into the slots.
  • Such upper connecting bolts can be dimensioned almost arbitrarily. This is because it can be realized that such bars break due to their material properties and dimensions before the concrete element is damaged. It is much easier to replace a damaged top link after an impact than to replace one or two concrete elements that have broken due to an overload.
  • the fact that the top connecting bolts are coated with an elastic-plastic coating means that they are also protected against corrosion from the weather.
  • the upper slots extend up to the transport threads of the concrete element and that the upper connecting bar with the Transportge winches can be brought into engagement.
  • Concrete elements usually have transport threads, with the help of which handling during transport and laying work is made easier.
  • This transport thread can advantageously also be used for fastening upper connecting bolts if the slots extend as far as the transport thread.
  • the separating device designed according to the invention can be used universally. It can be created both as a temporarily usable separating device and as a permanent device.
  • the development according to claim 13 is suitable, which is characterized in that the adjoining end faces of two adjacent concrete elements are glued together.
  • the mutual bonding of adjacent end faces means that the mutual connection is absolutely tight and permanent. It can be done by gluing concrete to concrete surface or also by gluing the elastic materials applied to the concrete surfaces. Where separating devices are curved and consequently wedge-shaped gaps are formed on the convex side between two end faces, suitable masses can be poured out.
  • the separating device designed according to the invention can also be used in a permanent version for other purposes, for example as a support or embankment wall.
  • the further development according to claim 14 is advantageous, which is characterized in that the concrete elements in or in one of the lateral surfaces facing away from the traffic have a cross-section e.g. dovetail undercut recess, each extending from the end face a distance in the longitudinal direction of the concrete element and that in the two recesses of two, adjacent to the end faces adjacent concrete elements, a bridging bar with at least part of its cross-section is inserted into the recess .
  • the bridging bars which positively engage the concrete elements on the back, transfer local embankment pressures from concrete element to concrete element.
  • the separating device designed according to the invention is extremely versatile. Thus, it is provided according to claim 15 that exposed and visible lateral surfaces of the concrete element are provided with colored and / or retroreflective markings.
  • At least the uppermost surface of the concrete elements has receiving openings for posts or the like.
  • the extended ends of these slots can possibly already be used as receiving openings for posts or the like.
  • Such openings can also be used in the top surface. This makes it possible to build on the top surface of a partition or sliding wall, windbreaks, noise barriers, fences, but also posts for traffic signs, lighting equipment and much more.
  • the profile of the concrete elements of the separating device designed according to the invention is not mandatory for achieving the inventive advantages, but on the contrary, any profile shape suitable for the respective application can be used.
  • any profile shape suitable for the respective application can be used.
  • the prismatic cross section of the lying concrete element consists of a bottom is composed of the standing surface, laterally of a flat rectangle delimited at right angles to the standing surface and a trapezoid delimited by inclined running surfaces and an uppermost lateral surface running parallel to the standing surface.
  • Another already successfully used shape is characterized according to claim 18 in that the prismatic cross-section of the lying concrete element above the trapezoid has a further high trapezoid delimited by steeply inclined lateral surfaces and the uppermost lateral surface and corresponds essentially to that of the "New Jersey" profile.
  • the further development according to claim 19 is particularly advantageous, which is characterized in that the prismatic cross section of the lying concrete element is formed asymmetrically to the solder center line on the standing surface and is delimited in a straight line on the side facing away from the traffic by a vertical or steeply inclined lateral surface.
  • the separating device can be varied as required.
  • the concrete elements can be made small or comparatively short or large and comparatively heavy, depending on which task the separating device has to fulfill and which loads it is exposed to.
  • the lower slot with the double-conical connecting bar is generally the advantageous form for heavy and large configurations
  • the upper slot with the upper connecting bar in general has advantages for light versions, although this rule does not exclude exceptions that require conflicting solutions.
  • a size which, according to at least previous knowledge, is the most suitable for the use of partitions and sliding walls is characterized in that concrete elements with a "New Jersey" profile have a footprint of approximately 0.6 m and a height of approximately 8 .0 m and a length of approx. 3.0 m.
  • Fig. 1 shows a concrete element 2 in front view.
  • the concrete element 2 shown is adapted approximately to the "New Jersey" profile. It has the shape of a prism, which is arranged lying in the separating device 1 (see FIG. 20).
  • the cross section of the lying concrete element 2 consists of a lower flat rectangle 3 and an overlying trapezium 4, which is followed by a relatively slim trapezoid 5.
  • the concrete element can consist of high-density concrete and internal steel reinforcements, not shown.
  • the concrete element 2 as the lower surface of the prism, has a standing surface 6 and an uppermost boundary surface 7.
  • the concrete elements 2 have end faces 8 that extend at an angle of 45 ° to a longitudinal median plane 9. With these end faces 8, the concrete elements 2 can be arranged close together to the separating device 1. They have surfaces or pressure contact at least in some areas and overlap one another at the ends in such a way that no gaps or gaps arise between two concrete elements 2.
  • FIG. 2 shows an embodiment of a separating device in the median of directional lanes.
  • the direction of traffic is shown in FIG. 2 by the arrow V.
  • This arrangement and configuration has the effect that that corner of the concrete element 2 which is opposed to the traffic direction V on the side exposed to traffic has an angle of 135 ° .
  • This has the advantage that even if two concrete elements 2 have been displaced in relation to one another and the front corner exposed to traffic is exposed, an obtuse angle is created, the legs of which serve as sliding and sliding surfaces. In this way, an impacting vehicle cannot be subject to the effects of a frontal impact, but is gliding away over the obtuse-angled surfaces.
  • the separating device 1 can be made from concrete elements 2 without the need for an additional mutual mechanical connection for normal cases, because a tendency to displacement of an individual concrete element caused by impact force is divided by the friction of the standing surface after overcoming the displacement safety 6 with the subsurface of the adjacent end face 8, so that the adjacent concrete element 2 absorbs the rest of the impact force not absorbed by the affected concrete element 2. Under normal conditions, therefore, only negligibly small shifts are possible. Even vehicles hitting at right angles to the length of the concrete elements do not lead to displacements of the concrete elements 2; because in this case too, the inclined end faces 8 transmit those residues of the impact force which they cannot absorb through their own security against displacement to the neighboring concrete element or elements.
  • wedge-shaped gaps 10 can be filled with removable casting compounds in temporarily created separating devices 1, and permanent casting compounds can be inserted in the case of permanent designs.
  • the end face 8 and optionally or also exclusively the standing area 6 according to FIG. 3 can be equipped with mushroom-shaped knobs 11 made of elastic material anchored in the concrete element.
  • the knobs press into the ground and increase the security against displacement.
  • the knobs can be in relation to one another with a gap, so that they interlock to a certain extent and counteract relative displacements on end walls 8 that are adjacent to one another.
  • the surface of the concrete element 2 is recessed in the area of the end face 8 and is generously rounded at the corners and that the concrete element is supplemented by elastic material 12 to the original shape.
  • This material can be firmly adhered to the concrete element by appropriate measures and can also be seen in the lower area of FIG. 3 and also have knobs 13 on its surface.
  • End faces, adjacent jacket surfaces and the base 6 can be equipped in this way. Resiliently flexible materials press into rough surfaces or adapt to them, thus increasing the resistance to displacement against impact forces.
  • the generous rounding on the end faces protects the concrete elements from unfavorable loads.
  • the resilient material is able to absorb thermal expansion.
  • the partially reproduced concrete element 2 shown in FIG. 4 has a base 6 which is either equipped with elastic material 12 or mushroom-shaped knobs 11, but is otherwise smooth and even.
  • openings 6 which are open at the bottom, e.g. In cross-section, U-shaped, channel-shaped grooves 14 running at right angles to the longitudinal center plane 9 are incorporated.
  • U-shaped, channel-shaped grooves 14 running at right angles to the longitudinal center plane 9 are incorporated.
  • these grooves which are expediently placed so that there are uniform distances between the grooves 14 within the separating device 1, the displacement resistance of the concrete element increases with respect to the substrate, because the more or less flexible base material at least partially bulges into the grooves. With hard ground, however, the opposite is the case.
  • these grooves 14 have the considerable advantage that they enable cross-drainage through a separating device.
  • FIG. 6 shows the bottom view of the concrete element 2 according to FIG. 5.
  • an extremely resistant to impact separating device 1 can be created, the security of which is that the individual concrete elements on the one hand rest largely against displacement and on the other hand over the inclined at an angle of 45 ° End faces are in contact with each other and thus transfer unresorbed impact forces to neighboring elements.
  • FIGS. 7 to 9 For extreme cases, where these measures are not sufficient to ensure the security against displacement, the further developments according to FIGS. 7 to 9 are provided.
  • an upright, trapezoidal, lower slot 15 which has a limited height, is worked into the standing area 6 of the concrete elements 2 symmetrically to the longitudinal median plane 9 in the area of the end faces 8.
  • This slot opens into the end face 8 in the form of a comparatively narrow gap, while the broad trapezoid lies at a distance from the end face.
  • two adjoining concrete elements with lower slots 15 jointly delimit an approximately double-conical gap.
  • a lower connecting bar 16 is inserted into this gap.
  • the insertion is relatively simple in that the connecting bar 16, which is double-conical, is placed on the floor and the concrete element is placed over it when laying.
  • the lower connecting bolt 16 is advantageously designed as a reinforced concrete bolt, which has an inner steel reinforcement 17, but has a very narrow cross section 18 in the middle, which is designed to a certain extent as a predetermined breaking point.
  • a lower tie bar 16 is capable of limited tensile forces from Betonele ment 2 to transfer to concrete element 2. It transmits thrust forces in the same way, in relation to transverse forces which are not transmitted via the end faces 8, but which tend to separate the end faces 8 from one another. If the concrete breaks under stress, the predetermined breaking point 18 takes effect. The concrete breaks and the steel reinforcement 17 maintains its strength. As a result, the concrete elements are only negligibly displaced relative to one another.
  • Another possibility of additionally mechanically connecting the concrete elements 2 to one another is to in turn guide the upper slots 19 in the uppermost lateral surface 7 near the end faces symmetrically to the longitudinal median plane 9, and to limit the upper slots 19 downward in the perpendicular direction.
  • These slots are conveniently undercut, i.e. at their ends distant from the end faces crowned or angularly enlarged in cross section. You can also bring the slots 19 to any existing transport thread 20. See Fig. 12.
  • upper connecting bolts 21 are inserted, which consist essentially of sheet metal, which is thickened at the ends by flanging or similar measures and which is covered on all sides by elastic material.
  • the lower connecting bar 16 as well as the upper connecting bar 21 can also be adapted to the situation of an arcuate separating device 1.
  • the lower connecting bars 16 can then already be prefabricated in the desired angular shape, the upper connecting bars 21 can be pre-bent or adapted in a suitable form on the laying point.
  • the upper connecting bolts 21 can also have devices which can be brought into engagement with the transport threads 20.
  • the concrete elements 2 are produced with a different profile, in such a way that they have a steeply inclined, flat boundary surface 22 facing away from the traffic. This boundary surface 22 can also run perpendicular.
  • the concrete elements 2 produced in this way with an asymmetrical prism cross section are suitable as supporting and embankment walls.
  • the end faces inclined at an angle of 45 ° to the longitudinal vertical plane are not only force-transmitting but also opaque.
  • the end faces 8 can advantageously be glued to one another both in the case of the aforementioned designs and in this case in order to tightly close the gap between the adjoining end faces 8 and thus to ensure additional power transmission.
  • ⁇ 15 can be provided with dovetail-shaped conical recesses 23 at the height or in the area of the standing surface 6, 12, the latter being open at the bottom. These recesses each run a certain length from the end face 8 in the direction of the concrete element and have an opening with a reduced cross section to the flat face 22. Bridging bars 24 can be used in them, which are made of any materials, concrete or the like, which can be angularly curved even when cornering, and which have the task of transmitting embankment pressures that are exerted locally on a concrete element 2 to the neighboring element.
  • the concrete element 2 of the separating device 1 designed according to the invention can not only be produced in different cross-sectional shapes according to FIG. 17 or 18, but it can also be advantageously equipped on its end face 8 or on other faces with retroreflective foils or plates or other security surfaces 25 , which contrast in color, reflect light, etc.
  • receiving holes can be provided in the posts 27, for example for traffic signs 28 warning bars 28 or e.g. Posts not shown for noise protection or windbreak walls can be attached.
  • the concrete elements 2 shown can be manufactured in almost any dimensions, as far as the handling and the load capacity allow. You can have any profile, such as Figures 15, 17 and 18 show. In most applications, they can be set up without mechanical interlocking to the separating device.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Paleontology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Sewage (AREA)
  • Vending Machines For Individual Products (AREA)

Claims (20)

1. Dispositif de séparation constitué d'éléments de béton alignés, reliés entre eux, pour être agencés sous la forme de parois disposées entre les chaussées ou sur les bords de routes ou similaires, les éléments de béton qui sont identiques ayant une forme prismatique et étant tournés l'un vers l'autre dans l'agencement en paroi, selon la nature des faces frontales, les faces de leur embase prismatique étant verticales, tandis que ces éléments présentent également une section polygonale et une forme de surface enveloppante divisée de façon correspondante en plusieurs faces, dont l'une constitue une surface d'appui (surface de contact au sol), tandis que les autres faces ont une allure verticale et/ou en pente ascendante, ou horizontale et sont conformées en faces de glissement, faces de visibilité, faces de montage et similaires, caractérisé en ce que les éléments de béton (2) affectent une forme de prisme incliné avec des faces frontales (8) parallèles les unes aux autres et qui sont inclinées à 45° par rapport a la longueur du prisme, et en ce que ces faces frontales (8) déterminent, dans cet agencement des éléments (2) de béton en forme de paroi, un angle obtus par rapport a leur longueur à leur extremité située à l'opposé du sens de circulation et disposé du côté de la circulation, dans cet agencement lesdites extrémités formant une liaison par complémentarité en forme et de force entre les éléments voisins pour les faces extrêmes en contact mutuel au moins partiel, ceci au moins dans le cas de charge.
2. Dispositif de séparation selon la revendication 1, caractérisé en ce que l'élément de béton (2) est enduit d'une matière élastique, sur les faces frontales (8) au moins pour les zones proches du bord, et sur les faces latérales, au moins pour les zones proches des faces frontales.
3. Dispositif de séparation selon la revendication 1, caractérisé en ce que les faces frontales (8), et éventuellement la surface d'appui (6) sont chacune pourvues, au moins par zones, de crampons (11) en matière élastique, tel que de la matière plastique, fixés dans l'élément de beton (2).
4. Dispositif de séparation selon la revendication 1, caractérisé en ce que l'élément de béton (2) est évidé sur ses faces frontales (8) au moins dans des zones proches du bord et, sur les surfaces latérales, au moins pour des zones proches des faces frontales, l'angle aigu entre la surface de la paroi et la face frontale (8) étant arrondi, et en ce que les évidements sont remplis par une matière (12) élastique adhérant fermement a l'élément de béton (2) pour redonner la forme d'origine a l'élément de béton.
5. Dispositif de séparation selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'élément de béton (2) est évidé sur sa surface d'appui (6), cet évidement étant rempli par une matière élastique (12) y adhérant fermement pour redonner la forme d'origine.
6. Dispositif de séparation selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la matière élastique (12) qui remplit les évidements de l'élément de béton (2) présente, par zones au moins, une surface (13) rugueuse ou comportant des crampons.
7. Dispositif de séparation selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la surface d'appui (6) de l'élément de béton (2) est divisée en au moins deux surfaces partielles, au moyen d'au moins une rainure (14) ouverte vers le bas, en forme de canal et s'étendant transversalement par rapport à la longueur.
8. Dispositif de séparation selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la surface d'appui (6) de l'élément de béton (2) est divisée par des rainures decalées, par exemple, en forme de croix, qui forment des pieds de support distincts.
9. Dispositif de séparation selon l'une quelconque des revendications 1 à 8, caractérisé par le fait que les éléments de béton (2) présentent des fentes inférieures (15) ouvertes sur la surface d'appui (6) approximativement au niveau du plan médian longitudinal (9), dont la section, dans la direction de la surface extérieure (8) s'amincit coniquement en entailles étroites et en ce que, dans la fente inférieure (15) de deux éléments de béton (2) contigus par leurs faces frontales (8), il est placé une traverse inférieure (16), en double cone, de forme adaptée aux deux fentes (15), s'amincissant au milieu de sa longueur à partir des deux extrémités.
10. Dispositif de séparation selon la revendication 9, caractérisé en ce que la traverse (16) est comme une poutre en béton à armature d'acier, en ce qu'elle est calculée pour supporter une charge limitée allant jusqu'à des valeurs déterminées, sous les charges survenant longitudinalement et transversalement par rapport aux éléments de beton (2), et en ce qu'elle est muni, sur le milieu de sa longueur, d'un point de rupture du béton (18) cédant sous une charge limité, l'armature d'acier demeurant immobile.
11. Dispositif de séparation selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les éléments de béton (2) présentent, sur leurs faces frontales (8), des fentes supérieures (19), disposées symétriquement par rapport au plan médian longitudinal-vertical (9), partant de la face latérale (7) supérieure et finissant vers le bas, à section s'élargissant à ses extrémités opposées aux faces frontales et s'ouvrant sur celles-ci, et en ce que, dans la fente supérieure (19) de deux éléments de béton (2) contigus par leurs faces frontales (8), il est placé par dessus une barre supérieure de liaison (21), qui est de section adaptée à la forme des deux fentes supérieures (19) contiguës, et en ce qu'elle est constituée d'un métal revêtu à l'extérieur d'une matière élastique.
12. Dispositif de séparation selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les fentes supérieures (19) s'étendent jusqu'à des filetages (20) pour la manutention de l'élément de béton (2) et en ce que les barres de liaison (21) peuvent être amenées en engagement avec les filetages (20) pour la manutention.
13. Dispositif de séparation selon l'une quelconque des revendications 1 à 12, caractérisé en ce que les faces frontales (8) contiguës de deux éléments de béton (2) voisins, peuvent être collées l'une avec l'autre.
14. Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que les éléments de béton (2) présentent, sur au moins l'une des faces latérales (22) tournées vers la circulation, un évidement (23) comportant une section en contre-dépouille par exemple en col de cygne, cet évidement s'étendant dans chaque cas depuis la face frontale (8) dans le sens longitudinal de l'élément de béton (2) et en ce que dans les deux évidements (23) de deux éléments de béton (2) voisins et contigus par leurs faces frontales (8) il est placé une traverse de jonction (24) dont la section, par partie au moins, s'adapte dans l'évidement (23).
15. Dispositif de séparation selon l'une quelconque des revendications 1 à 14, caractérisé en ce que les faces latérales visibles, tournées vers la circulation, de l'élément de béton (2) sont pourvues de marquages (25) de couleur ou rétroréfléchis- sants.
16. Dispositif de séparation selon l'une quelconque des revendications 1 à 15, caractérisé en ce qu'au moins la face latérale supérieure (7) de l'élément de béton (2) présente des orifices récepteurs (16) pour des poteaux (27) ou similaires.
17. Dispositif de séparation selon l'une quelconque des revendications 1 à 16, caractérisé en ce que la section prismatique de l'élément de béton (2) horizontal, se compose d'un quadrilatère plan (3) délimité en dessous par la surface d'appui (6) et latéralement par les faces latérales qui sont à angle droit avec la surface d'appui (6) et d'un trapèze (4) le surmontant, délimité par des faces latérales inclinées ainsi que par une surface latérale supérieure (7) qui est parallèle à la surface d'appui.
18. Dispositif de séparation selon la revendication 17, caractérisé en ce que la section prismatique de l'élément de béton (2) horizontal, présente, au-dessus du trapèze (4), un autre trapèze haut (5) délimité par des faces latérales fortement inclinées et par la surface latérale supérieure (7), et correspond sensiblement à celui du profil "New Jersey".
19. Dispositif de séparation selon l'une quelconque des revendications 1 à 18, caractérisé en ce que la section prismatique de l'élément de béton (2) horizontal est conformée sur la surface d'appui (6) asymétriquement par rapport au plan médian vertical (9) et qu'elle est délimitée, de façon rectiligne, du côté tourné vers la circulation, par une face latérale (22) verticale ou fortement inclinée.
20. Dispositif de séparation selon l'une quelconque des revendications 1 à 19, caractérisé en ce que les éléments de béton (2) à profil "New Jersey", présentent une largeur de la surface d'appui d'environ 0,6 m, une hauteur d'environ 0,8 m et une longueur d'environ 3,0 m.
EP88109450A 1987-10-07 1988-06-14 Dispositif de séparation Expired - Lifetime EP0310754B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88109450T ATE58928T1 (de) 1987-10-07 1988-06-14 Trennvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873733846 DE3733846A1 (de) 1987-10-07 1987-10-07 Trennvorrichtung
DE3733846 1987-10-07

Publications (3)

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EP0310754A2 EP0310754A2 (fr) 1989-04-12
EP0310754A3 EP0310754A3 (en) 1989-07-26
EP0310754B1 true EP0310754B1 (fr) 1990-12-05

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ID=6337776

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EP88109450A Expired - Lifetime EP0310754B1 (fr) 1987-10-07 1988-06-14 Dispositif de séparation

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EP (1) EP0310754B1 (fr)
AT (1) ATE58928T1 (fr)
DE (2) DE3733846A1 (fr)
ES (1) ES2019434B3 (fr)

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FR2661199A1 (fr) * 1990-04-24 1991-10-25 Koehl Jean Marie Bordures de trottoir munies de logements pour poteaux ou marques de signalisation routiere interchangeables.
DE59403316D1 (de) * 1993-03-19 1997-08-14 Wilhelm Junker Leiteinrichtung für leitwände
DE9313538U1 (de) * 1993-09-08 1993-11-11 Reiff-Beton-Rohr GmbH & Co KG, 56642 Kruft Beton-Gleitwand
DE4403438C2 (de) * 1994-02-04 1998-01-15 Nissen Adolf Elektrobau Leitwand für Kraftfahrzeuge
NL193170C (nl) * 1994-12-01 1999-01-05 Haitsma Beton Bv Verplaatsbaar afscheidingselement en daarmee gevormde afscheiding.
DE19831268C1 (de) * 1998-07-13 1999-10-28 Spig Schutzplanken Prod Gmbh Betongleitwand
DE102008045518B4 (de) 2008-09-03 2014-09-04 Reiff-Beton Gmbh & Co Kg Betonschutzwand
FI128216B (fi) * 2009-04-03 2019-12-31 Rudus Betonituote Oy Ajotien reunaan tai kaistoja erottamaan asetettava kaide sekä menetelmät kaide-elementtien kiinnittämiseksi toisiinsa ja irrottamiseksi toisistaan
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Also Published As

Publication number Publication date
EP0310754A3 (en) 1989-07-26
ES2019434B3 (es) 1991-06-16
DE3861234D1 (de) 1991-01-17
DE3733846C2 (fr) 1993-05-13
ATE58928T1 (de) 1990-12-15
EP0310754A2 (fr) 1989-04-12
DE3733846A1 (de) 1989-04-27

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