EP2492398A1 - System zum Schutz von Baustellen unter Straßen- oder Autobahnverkehrsbelastung - Google Patents

System zum Schutz von Baustellen unter Straßen- oder Autobahnverkehrsbelastung Download PDF

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Publication number
EP2492398A1
EP2492398A1 EP12156242A EP12156242A EP2492398A1 EP 2492398 A1 EP2492398 A1 EP 2492398A1 EP 12156242 A EP12156242 A EP 12156242A EP 12156242 A EP12156242 A EP 12156242A EP 2492398 A1 EP2492398 A1 EP 2492398A1
Authority
EP
European Patent Office
Prior art keywords
deceleration
truck
return element
main unit
road
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.)
Withdrawn
Application number
EP12156242A
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English (en)
French (fr)
Inventor
Tiziano Salvemini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2492398A1 publication Critical patent/EP2492398A1/de
Withdrawn legal-status Critical Current

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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
    • E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/145—Means for vehicle stopping using impact energy absorbers
    • E01F15/148—Means for vehicle stopping using impact energy absorbers mobile arrangements

Definitions

  • the present invention generally refers to the field of road/highway maintenance and safety, both in urban and extra-urban settings.
  • it regards a system that protects workers, while they work on a road or highway, from being hit by a motor vehicle, or it protects structures (scaffolds, etc.) from the impact of moving vehicles.
  • the heavy protection truck constitutes a rigid object that puts the safety of the passengers of the impacting vehicle at risk.
  • a truck 1 is shown, like those normally used for the extra-urban highway/road maintenance in order to indicate the presence of work underway.
  • the truck 1 can carry various objects and tools or materials used for the road/highway maintenance, as is known in the field of the art.
  • the truck 1 is therefore equipped with a sign panel 2 and in Fig. 1b such sign panel takes the form of a luminous panel 2', e.g. bearing flashing lights in order to better attract the attention of the drivers.
  • the arrow 3 indicates the need of the drivers to steer (in this case to the left) in order to avoid impact against the danger-indication truck 1.
  • a deceleration and return element 6 is mounted on the rear of a truck 1.
  • the deceleration and return element 6 allows minimizing the damage from impact only for light vehicles at low speed, since in reality it lacks a fixed anchorage and is only based on the inertia of the mass identified by the truck (possibly loaded or ballasted). Nevertheless, this embodiment, even with its limited application, allows reducing the consequences of impact for a considerably percentage of collisions.
  • the element 6 could constitute an element entirely similar to the steel tape of a guardrail barrier 4.
  • the deceleration and return element 6 could be connected in an articulated manner (hinge with vertical axis), so as to allow the rotation thereof in a horizontal plane parallel to the road surface.
  • its free end 8 is arranged further back (considering the advancing direction of the truck 1, or travel direction) than the end 7 connected to the truck 1.
  • the element 6, in its operative condition forms an angle with respect to the rear part of the truck 1 (see the angle " ⁇ " of the embodiment of Fig. 2b , where the arrow F indicates the travel direction of the vehicular traffic).
  • the element 6 could also have another form, or it could be made of another functionally equivalent material, and possibly also be anchored in a fixed manner in the point 7 to the advancing truck 1.
  • the element 6 could constitute a movable element whose alpha angle (mentioned above and corresponding to the final operative position) is manually or automatically adjusted (e.g. by the cabin of the truck 1) by means of hydraulic pistons or the like.
  • damping elements or the like could be provided between the element 6 and the rear part of the truck.
  • the effect produced by the deceleration and return element 6 is to reduce, through its deformation, the acceleration of the approaching vehicle (not shown) (which would otherwise impact against the rear part of the truck 1), as well as deflect the trajectory of the vehicle itself in order to prevent that it enters into the lane to be protected (in the present case, the emergency lane 5).
  • the effect is therefore rather different from a frontal impact perpendicular to the rear part of the truck, comparable to a rigid barrier (or to an I-beam).
  • the element 6 could also have a structure extendible in a telescopic manner, or a similar structure (e.g. also in the form of various foldable but interlockable parts), comprising for example various parts of the steel tape 6 mutually slidable on each other.
  • Various energy absorption elements can be interposed in the space formed by the abovementioned alpha angle, between the rear part of the truck 1 and the deceleration and return element 6.
  • the system for protecting work sites subjected to road and highway traffic attains the following results:
  • Figures 2a to 2c show the second embodiment of the present invention. These are all plan views and once again refer, as a mere example, to the protection of a work site set up in the emergency lane 5 and/or in the normal lane 9, the passing lane 10 in this case remaining the free lane.
  • the protection system in this case also comprises a main part 1', which is to be considered fixed in this case, the work site being assumed to be fixed.
  • the fixed part or main part 1' is first of all positioned by a crane truck (not shown) close to the forbidden/closed lane, after the mounting of the provided sign (not represented). Then, a lateral steel tape 6' is released from one of its stops, depending on the closed lane, and first made to rotate (the angle ⁇ ) and then slide in a telescopic manner until it intercepts the adjacent barrier 4.
  • the terminal (free end) 8' of the slidable bar is equipped with a strong eye, where a bayonet device 11 is inserted, which will straddle the existing bar/tape 4 and will then be closed on the lower part by a safety pin.
  • the box-like telescopic lateral elements 12' will be extracted from the main part 1', such elements to be constrained to the existing barrier 4, using the same procedure and the same mechanical elements.
  • the mounting of the protection of the work site in this second embodiment of the invention is completed with the rear box structure 13 for reinforcement and double bracing with cable on small hoists.
  • ballast 14 of the main unit 1' will be filled with clean water.
  • the protection system for work sites according to the invention will be equipped with various structures so as to lower the final cost.
  • the most complete system will have a mounting versatility for all road and highway characteristics.
  • Figure 2 The system for use on extra-urban roads represented in Figure 2 can be transported (in the rest condition shown Figure 2a which of course also comprises, among other things, the "barrier" 6') by any one truck and even on a simple van.
  • the innovative system for protecting work sites subjected to road traffic does not have metal barriers 6 or 6', nor equipment to be extracted 12 and 12', but rather is simply constituted by a steel tank with irregular pyramid 6", with the function of deceleration and return element, which can be transported by any one flatbed van which can be driven with the license B.
  • the element 6" is positioned by a crane truck near the sensitive object to be protected (the work site) and then filled with a specific amount of clean water. For the removal, the reverse operation will be carried out.
  • the inventive concept consists, for the first of the two embodiments, in positioning at least one ribbed, continuous road barrier tape, with characteristics similar to or greater than those of an existing barrier at the edge of the roadway, to which the tape (or tapes) is (are) constrained, particularly in the case of the second embodiment of the invention.
  • said tape (or tapes), or an analogous deceleration and return structure 6, is mounted on the rear part of any one truck or van 1.
  • the main unit 1' (which is fixed) - can be equipped with ballast 14 obtained with a large tank made of plastic or preferably galvanized steel, which is preferably filled with water upon positioning of the work site protection according to the invention.
  • the barrier or return element 6, 6' or 6" is characterized by the maximum level of safety and protection, to the benefit of the operators who perform the maintenance directly on the road or highway.
  • the structure of the return element can be stiffened by a suitable steel reinforcement network.
  • Behind the return element 6 or 6' there can be elements which contribute to decelerating the vehicle, e.g. a structure composed of steel honeycomb panels, arranged between the element 6 or 6' and the component 1 (advancing sign truck), or the fixed main unit 1', respectively.
  • Other types of impact absorbers could be equally provided for, like those used in the field of construction of roads/highways for decelerating the vehicles impacting against a fixed structure (traffic divider, etc.).
  • the angle " ⁇ " of the barrier or protection for work sites subjected to vehicular traffic thus conceived, whether the barrier is of dynamic type (first embodiment of the invention, Figs. 1a, b ) or static type (second embodiment of the invention, Figs. 2a, b, c ), in combination with the shape of the barrier itself, with steel tape (tapes) or other material, allows the return of the impacting vehicles in the lane.
  • the element 6, 6', 6 in addition to elastically absorbing the impact, thus minimizes the consequences of the impact itself, and could be designed according to different homologation classes and ASL values, in the same manner as the road/highway lateral barriers (guardrails).
  • the mounting of the protection system according to the present invention can be carried out both in the travel lane (with or without emergency lane 5) and in the passing lane.
  • the system protects obstacles and work sites in an urban setting, and is simply constituted by the shaped cover 6" with irregular pyramid shape; such cover has ballast, without the presence of barriers or anchorage. Also such cover, preferably made of steel, is filled with water after its positioning with the crane truck.
  • the return element 6" allows a protection from impact that is not particularly strong but its shape allows the return/sending back of the vehicle, minimizing the consequences of the collision and absorbing (by being deformed) the accidental impact.
  • the form of the return element 6" (tank) could be "rising", i.e. to allow, like in the case of a common concrete or steel Jersey barrier, the deceleration of the motor vehicle (during its return to the lane) by transforming part of the kinetic energy thereof into potential energy before restoring such energy at a subsequent time. This occurs in order to lessen over time the decelerations that occur during vehicle impact, thus also limiting the damage to the element 6" and to the vehicle 20.
  • the shape of the protection according to the present invention allows the vehicle to laterally but not frontally impact, also allowing its return/sending back, ensuring a regulated and elastic impact with energy absorption in a manner so as to limit the damage.
  • the calculation verifying the various actions allows establishing, with absolute certainty, that the safety limit will not be violated.
  • the system according to the present invention for protecting work sites subjected to road traffic, was designed so that its mounting and/or dismantling on site, and generally its preparation on site, can be obtained in less than ten minutes, in a manner such that its use can be extended to all movable work sites, even those with limited duration.
  • the bars or other types of confinement means will be constrained to the existing barriers 4 of any type (metal or concrete), by means of a "bayonet” coupling system, or by means of other systems (with quick coupling) that are in any case effective for transferring the stresses to the existing barrier 4.
  • the protection system according to the present invention is capable of dividing emergency lanes, travel lanes and passing lanes in addition to assisting with road change signage, and can protect scaffolds, supports and any other temporary works that can be affected by accidental impacts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP12156242A 2011-02-25 2012-02-20 System zum Schutz von Baustellen unter Straßen- oder Autobahnverkehrsbelastung Withdrawn EP2492398A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRM2011A000087A IT1405174B1 (it) 2011-02-25 2011-02-25 Sistema per la protezione dei cantieri assoggettati a traffico stradale o autostradale.

Publications (1)

Publication Number Publication Date
EP2492398A1 true EP2492398A1 (de) 2012-08-29

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Family Applications (1)

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EP12156242A Withdrawn EP2492398A1 (de) 2011-02-25 2012-02-20 System zum Schutz von Baustellen unter Straßen- oder Autobahnverkehrsbelastung

Country Status (2)

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EP (1) EP2492398A1 (de)
IT (1) IT1405174B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107650845B (zh) * 2017-09-30 2023-06-09 江苏建筑职业技术学院 一种机动车辆安全避险系统及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706923A1 (en) * 1993-06-25 1994-12-30 Paris Rhin Rhone Autoroutes Device for signalling closing off of at least one traffic lane on a roadway which comprises a plurality thereof in the same direction
WO2001087671A1 (en) * 2000-05-17 2001-11-22 Vägverket Crash attenuator for vehicle and method for transporting such attenuator
US20050035607A1 (en) * 2003-08-14 2005-02-17 Joseph Morgese Highway nose
US20050141960A1 (en) * 2003-04-08 2005-06-30 State Of California, Department Of Transportation Mobile work zone protection device
EP2392735A2 (de) * 2010-06-02 2011-12-07 Heintzmann Sicherheitssysteme GmbH & Co. KG Fahrbahnsicherungssystem sowie Verfahren zur temporären Absperrung eines Fahrbahnabschnitts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706923A1 (en) * 1993-06-25 1994-12-30 Paris Rhin Rhone Autoroutes Device for signalling closing off of at least one traffic lane on a roadway which comprises a plurality thereof in the same direction
WO2001087671A1 (en) * 2000-05-17 2001-11-22 Vägverket Crash attenuator for vehicle and method for transporting such attenuator
US20050141960A1 (en) * 2003-04-08 2005-06-30 State Of California, Department Of Transportation Mobile work zone protection device
US20050035607A1 (en) * 2003-08-14 2005-02-17 Joseph Morgese Highway nose
EP2392735A2 (de) * 2010-06-02 2011-12-07 Heintzmann Sicherheitssysteme GmbH & Co. KG Fahrbahnsicherungssystem sowie Verfahren zur temporären Absperrung eines Fahrbahnabschnitts

Also Published As

Publication number Publication date
ITRM20110087A1 (it) 2012-08-26
IT1405174B1 (it) 2013-12-20

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