WO2006031126A1 - Structure securite anti-collision pour portiques routiers de grande taille - Google Patents

Structure securite anti-collision pour portiques routiers de grande taille Download PDF

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Publication number
WO2006031126A1
WO2006031126A1 PCT/NO2005/000337 NO2005000337W WO2006031126A1 WO 2006031126 A1 WO2006031126 A1 WO 2006031126A1 NO 2005000337 W NO2005000337 W NO 2005000337W WO 2006031126 A1 WO2006031126 A1 WO 2006031126A1
Authority
WO
WIPO (PCT)
Prior art keywords
leg
legs
transom
collision
safe frame
Prior art date
Application number
PCT/NO2005/000337
Other languages
English (en)
Inventor
Kim Heglund
Johnny SKÖLD
Original Assignee
Juralco As
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 Juralco As filed Critical Juralco As
Priority to AT05779686T priority Critical patent/ATE506489T1/de
Priority to DE602005027585T priority patent/DE602005027585D1/de
Priority to EP05779686A priority patent/EP1794370B1/fr
Publication of WO2006031126A1 publication Critical patent/WO2006031126A1/fr

Links

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
    • 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
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
    • E01F9/635—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact by shearing or tearing, e.g. having weakened zones
    • 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
    • E01F9/696—Overhead structures, e.g. gantries; Foundation means specially adapted therefor

Definitions

  • the present invention relates to a collision safe frame for large traffic gantries.
  • the frame comprises a plurality of legs, each supported at their lower end by a foundation, while at their upper end, each leg supports one or more transverse transoms, girders or the like, intended to extend across a road, supporting traffic signs and/or traffic lights or the like. From a safety point of view, traffic gantries of this type must be so as to cause as little injury and damage as possible to human bodies or to the vehicles in a crash.
  • gantries formed of masts and transoms formed by trusses. These elements are made rigid in order to resist the environmental loads and forces acting at any time on the gantry. It is a requirement for such gantries that they shall not collapse when subjected to a collision with a vehicle and further that the transom shall not fall down onto the vehicles beneath the gantry.
  • Such known traffic gantries are formed of single vertical masts, or inclined, but rigidly fixed masts, arranged on each side of the road and with intermediate masts in case of separated, several traffic lane motorways.
  • An object of the present invention is to provide a traffic gantry which is collision safe and collision friendly when hit by vehicles, the gantry being of a yielding type, yielding at predetermined sections, thereby minimizing injury to people damage or damage to the vehicle.
  • An other object of the invention is to provide a collision safe traffic gantry of a type wherein the transom or transverse girder does not fall down, even if one or two of the supporting masts or legs are completely destroyed in a collision with a vehicle.
  • a further object of the invention is to provide a collision safe traffic gantry which may resist impact from a vehicle hitting a supporting leg or mast from either sides with respect to the possible driving directions of the traffic lane, without causing severe damage to the transom or girder, or without causing the transom or girder to fall down, completely or partially.
  • a still further object of the invention is to provide a traffic gantry which may easily be assembled in a simple way, and which may quickly be erected across the road or motorway without causing any long stoppage in the traffic.
  • the transom is supported by pairs of legs or masts, each pair forming a frame.
  • Frames may be placed on both sides of a multi traffic lane motorway and between the traffic lane(s) .
  • Each mast or leg is designed to resist the following collision conditions: 1. Straight in front or at an angle on the front leg,
  • the lower breaking point will break off, the pivotable foundation joint will swing down into the space in the ground in front of and at the rear of the foundation, and the front leg will pivot freely under the gantry in the same direction as the direction of motion of the vehicle.
  • the pendulum motion is stopped either because the rotational energy is damped out and the leg is freed from its rotational axis and fall down, or when the leg hits the transom, whereupon the leg will become free from the fixture at the pivot hinge on the transom, and then fall down.
  • collision condition 3 When the vehicle hits the front leg from behind, i.e. the collision condition 3, the same will occur as for collision condition 1, but course of events will be in opposite direction.
  • collision condition 4 When the rear leg is hit from behind, i.e. collision condition 4, the same will occur as for collision condition 2, but course of events will be in opposite direction.
  • Figure 1 shows an alternative solution of a collision safe traffic gantry according to the invention, the gantry being positioned across a motorway comprising several traffic lanes, the gantry comprising two end frames and an intermediate frame placed in the mid shoulder between two traffic lanes;
  • Figure 2 shows a preferred embodiment of a collision safe gantry according to the invention
  • Figure 3 shows a gantry frame, identifying the four different collision conditions
  • Figure 4 shows in detail the lower end of a leg of a gantry frame
  • Figure 5 shows, in an enlarged scale, details of a preferred support of the transom
  • Figure 6 shows a preferred embodiment of the interposition of two legs in a frame
  • Figures Ia-Ic show steps of a preferred method of assembling and erecting the legs and the transom.
  • Figure 1 shows an embodiment of a gantry 10 according to the invention.
  • the gantry comprises three pairs of frames 11, each formed by two upwards and inwards extending legs 12,12' .
  • the legs 12,12' supports a transversely arranged transom or beam 13.
  • the two end frames 11 are arranged on the side shoulder of each traffic lane, while the third frame 11 is arranged in the mid shoulder
  • the legs 12,12' and the transom 13 are formed of suitable trusses.
  • the transom supports traffic signs 14.
  • pairs of legs 12,12' meet in a single plane at their upper ends.
  • Figure 2 shows a preferred embodiment of the invention, said embodiment corresponds in general with the embodiment shown in Figure 1, except that legs 12,12' in a pair are laterally displaced with respect to each other.
  • Figure 3 shows a frame 11, a vertical section through a transom 13, the upper end of the frame 11 and the lower end of a leg 12, while Figure 4 shows in an enlarged scale the lower end of a leg 12, the foundation 17 and breaking joint 15.
  • the leg is formed of a Lattix®-profile.
  • the breaking bolts 16 may preferably be provided with a crack initiation (not shown) .
  • the breaking joint 15 is at its lower end pivotably arranged on the foundation 17, the foundation being fixed to the supporting ground 20.
  • the pivot suspension is obtained by means of an axis 18 extending in a direction parallel with the transom 13, across the motorway.
  • the upper end of the foundation 17 is configured in such way that a room 19 is formed on each side of the foundation 17, whereby the breaking joint, when the leg 12 is broken off, may pivot around the axis 18 and fall down into the hole 19 on either side of the foundation, dependent upon the direction of motion of the vehicle causing the break off.
  • the breaking joint and the upper end of the foundation 17 may be covered, for example by means of a tarpaulin bellow, a flexible jacket, or the like (not shown) .
  • the shaft 18 may preferably be arranged levelled with the adjacent ground 20.
  • the legs 12,12' support the transom 13.
  • a breaking joint 21 is arranged at the upper ends of the legs 12,12' , said breaking joint comprising one or more breaking bolts 16, preferably provided with a crack initiation.
  • the legs 12,12' are not fixed to the transom, but are pressed against one or more impact cushions 22 arranged on each side of the transom 13.
  • the frame 11 according to the present invention needs only to resist tension and compression. This makes it possible to provide "level arms" contributing to breaking off the bolts 14 correctly for such solution.
  • the upper breaking bolts 14 may preferably be placed along the inner sides of the legs 12,12' .
  • FIG. 3 As indicated in Figure 3 by means of arrows, four different directions of collision impacts are indicated.
  • the front leg 12 and the rear leg 12' must be seen in the same direction as indicated by the arrow A.
  • the arrow A shows the condition wherein the vehicle hits the frame 11 in front on the front leg 12, while the arrow B shows the condition wherein the vehicle hits the rear leg 12' of the frame 11 in its front.
  • the arrow C shows the condition wherein the vehicle hits the front leg 12 of the frame 11 from the rear, while the arrow D shows the condition wherein the vehicle hits the rear leg 12' of the frame 11 from the rear.
  • Figures 3 and 4 indicates further the pendulum motion P, indicated by broken line, the leg 12 will follow when broken off at the breaking joint 15.
  • FIG. 5 shows in enlarged scale the upper end of the two legs 12,12' in a frame 11, and a section through the transom 13.
  • the Figure shows the upper breaking joint 21 and the breaking bolts 16.
  • each leg 12,12' is further provided with a support profile 23, which according to the embodiment shown has a triangular cross section.
  • the upper corner of the supporting profile 23 is pressed against the press cushion 22.
  • the drawing is somewhat exaggerated in order to show the space between the press cushion 22 and the supporting profile 23.
  • each supporting profile 23 is hinged along the lower end facing inwards to the transom 13 by means of a hinged connection 24,25.
  • the hinged connection 24,25 comprises a cylindrical groove or notch 24 with a laterally configured opening arranged along the lower, inner edge of the support profile 23.
  • the groove or notch 24 has a shape adapted to receive and co-act with a shaft 25, arranged at both ends of the transom 13.
  • the groove 24 is further configured with an opening which is somewhat larger than the diameter of the shaft 25.
  • a number of smaller filler bodies 26 may be arranged between the hinged connection 24,25 and the transom 13.
  • Such filler bodies may for example be rods or bodies formed of other types of profiles.
  • the purpose of the hinged connection 24,25 is to allow the leg 12,12' to pivot around the hinged connection in case of collision between a vehicle and the leg 12,12', causing break off of the lower breaking joint.
  • the purpose of the filler bodies 26 is to secure that the leg 12,12' is kept in forced contact against the transom 13, and that the leg 12,12' and/or the transom 13 is not moved unintentionally if subjected to environmental loads or forces, such as wind, earthquake or the like.
  • Figure 6 shows parts of a preferred embodiment of the frame 11 according to the invention, wherein each leg 12,12' in a frame 11 is laterally displaced with respect to each other.
  • Preferred distance between two legs 12,12' of a frame may be in the order of Om to about 3m.
  • the solution according to the present invention will with respect to the collision conditions identified above function in the following manner: For collision of the most common type, i.e. collision condition 1 - impact from the front of or at an angle on the front leg 12 - the lower breaking joint will break off, the pivotable hinge 15 will rotate and fall down into the space 19 in the ground 20 in front or at the rear of the foundation 17, and said front leg 12 will pivot freely beneath the gantry 10, around the hinged connection 24,25 in the same direction as the direction of motion of the vehicle. The pivotable motion will stop when the upper end of the leg 12 hits the transom 13, the leg 12 may then be freed from the hinged connection 24,25 and fall down behind the vehicle. In case of a heavy impact, the breaking joint 21 may also break off.
  • both the upper and the lower breaking joint 15,21 will break off in that the lower breaking joint 15 will break off firstly, while the upper joint 21 temporarily will be intact whereupon the upper joint 21 subsequently will break off, whereby the leg 12' will fall down at a point in time where the vehicle has passed under the frame. Also for this case will the lower pivotable joint 15 pivot and fall down into the space 19 at the foundation 17, but in this case in opposite direction.
  • collision condition 3 When the vehicle hits the front leg 12 from the rear, i.e. collision condition 3, the same will occur as for the collision condition 1, but opposite direction.
  • collision condition 4 When the rear leg 12' is hit from the rear, i.e. collision condition 4, the same will occur as for collision condition 2, but opposite direction.
  • the figures Ia-Ic show one method of assembling the legs 12,12' and the transom.
  • the rear leg 12' is placed in a position to the right in the Figure, while the front leg 12 is placed in a position to the left in the Figure.
  • the two legs 12,12' are placed on the ground in lateral distance apart, and their upper ends are pulled in so that the groove 24 on the front leg 12 is placed into position with respect to the front shaft 25 and the bracket 30 to the right in the Figure, and the groove 24' on the rear leg 12' is placed in position with respect to the rear shaft 25' and the rear bracket 30' on the transom 13.
  • the transom 13 is then lifted into position above the two ends of the legs 12,12' whereupon the groove 24 is coupled to the shaft 25, and the groove 24' is coupled to the shaft 25' .
  • the transom is then lifted up and the front leg 12 is rotated in an anti-clockwise direction until a position where the leg is rotated so that the lower end of the leg 12 may be joined to the pivot on the foundation.
  • the rear leg 12' is rotated in a clockwise direction till the leg 12' has been rotated so far to the left in the Figure that the lower end of the rear leg 12' correspondingly may be connected to the pivot on the foundation.
  • the legs may be rotated up to 16° sideways from the vertical. As shown in the Figures the grooves 24,24' are directed upwards.
  • Possible signs or the like may possibly be fixed to the transom prior to assembling the legs 12,12' to the transom and lifting of the assembled gantry. Prior to these installation steps, the hinged joints 15 may be arranged in such manner and temporarily be stiffened so that they are in their required position, ready to be connected to the legs.
  • each pair of legs is pulled apart to form the correct A-frame angle. Gently lower the gantry so that the base plate on the end of each leg mates with the upper plate of the support. The wooden spacers holding the base plate in position will secure that mating plates are parallel. 19. Insert the two breaking bolts in each leg. Adjust the height of the transom to complete the operation. 20. When all legs are in position, tighten the bolts to the required torque. Lower the crane to transfer the weight of the gantry to the supports as appropriate. 21. Remove cranes.
  • profile material 26 may be of any suitable type, suitable for the intended purpose.
  • the collision safe frame may be modified to the roads and lanes where the gantry is to be installed.
  • a gantry may for example have a length of for example 50m.
  • the transom is made of several girder units, bolted together.
  • the horizontal distance between the lower end of the legs in a pair may for example be 4-5 m, while the free height under the gantry may for example be 6,5-7 m.
  • the length of a leg may for example be 6-7 m.
  • intermediate plates (not shown) , specifically designed for such joint, may be applied.
  • the signs may be hung on the transom in any suitable manner, suited for the intended purpose.
  • the frame may preferably be made of trusses of aluminium, whereby the total weight will be low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Special Wing (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Road Signs Or Road Markings (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne une structure (11) à sécurité anti-collision pour portiques (10) routiers de grande taille. Cette structure (11) comprend une pluralité de pieds (12, 12') supportés à leur extrémité inférieure par une fondation (17), et supportant à leur extrémité supérieure une ou plusieurs traverses (13) ou éléments analogues, sur lesquels sont montés des panneaux de signalisation et/ou des feux de signalisation ou analogues. Chaque pied (12, 12') est formé de manière à comporter au moins un joint (15, 21) frangible destiné à se rompre à un point prédéterminé à proximité de la fondation (17) en cas de choc causé par un véhicule entrant en collision avec la structure, et pour pivoter de manière à s'écarter dans le plan vertical afin d'annuler les effets préjudiciables causés aux véhicules et aux personnes impliqués, et d'empêcher la chute de la traverse (13).
PCT/NO2005/000337 2004-09-16 2005-09-14 Structure securite anti-collision pour portiques routiers de grande taille WO2006031126A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT05779686T ATE506489T1 (de) 2004-09-16 2005-09-14 Kollisionssicherer rahmen für grosse verkehrsgerüste
DE602005027585T DE602005027585D1 (de) 2004-09-16 2005-09-14 Kollisionssicherer rahmen für grosse verkehrsgerüste
EP05779686A EP1794370B1 (fr) 2004-09-16 2005-09-14 Structure securite anti-collision pour portiques routiers de grande taille

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20043888A NO322691B1 (no) 2004-09-16 2004-09-16 Trafikksikker portal
NO20043888 2004-09-16

Publications (1)

Publication Number Publication Date
WO2006031126A1 true WO2006031126A1 (fr) 2006-03-23

Family

ID=35057613

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2005/000337 WO2006031126A1 (fr) 2004-09-16 2005-09-14 Structure securite anti-collision pour portiques routiers de grande taille

Country Status (5)

Country Link
EP (1) EP1794370B1 (fr)
AT (1) ATE506489T1 (fr)
DE (1) DE602005027585D1 (fr)
NO (1) NO322691B1 (fr)
WO (1) WO2006031126A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513025B1 (de) * 2012-09-20 2014-01-15 Forster Verkehrs Und Werbetechnik Gmbh Verkehrszeichenbrücke
WO2019002844A1 (fr) * 2017-06-26 2019-01-03 Animex International Ltd Pont pour animal
CN112099025A (zh) * 2020-08-20 2020-12-18 杭州飞步科技有限公司 桥吊下的车辆定位方法、装置、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071970A (en) * 1976-04-27 1978-02-07 Transpo-Safety, Inc. Hinge plate for roadside post safety breakaway system for sign panels and the like
US4269384A (en) * 1979-05-07 1981-05-26 Daf Indal Ltd. Collapsible structures employing frangible connections
DK168226B1 (da) * 1991-03-05 1994-02-28 Bj Rn Thorkil Markmann Stander med brudled til opsætning af vejtavler
EP0740025A1 (fr) * 1995-04-25 1996-10-30 Alcoa Nederland B.V. Portique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3569590D1 (en) * 1984-10-20 1989-05-24 Ellgass S A L Mobile gantry

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071970A (en) * 1976-04-27 1978-02-07 Transpo-Safety, Inc. Hinge plate for roadside post safety breakaway system for sign panels and the like
US4269384A (en) * 1979-05-07 1981-05-26 Daf Indal Ltd. Collapsible structures employing frangible connections
DK168226B1 (da) * 1991-03-05 1994-02-28 Bj Rn Thorkil Markmann Stander med brudled til opsætning af vejtavler
EP0740025A1 (fr) * 1995-04-25 1996-10-30 Alcoa Nederland B.V. Portique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513025B1 (de) * 2012-09-20 2014-01-15 Forster Verkehrs Und Werbetechnik Gmbh Verkehrszeichenbrücke
AT513025A4 (de) * 2012-09-20 2014-01-15 Forster Verkehrs Und Werbetechnik Gmbh Verkehrszeichenbrücke
EP2711462A1 (fr) * 2012-09-20 2014-03-26 Forster Verkehrs- und Werbetechnik GmbH Pont de signalisation
EP2711462B1 (fr) 2012-09-20 2015-04-22 Forster Verkehrs- und Werbetechnik GmbH Portique de signalisation
WO2019002844A1 (fr) * 2017-06-26 2019-01-03 Animex International Ltd Pont pour animal
GB2578024A (en) * 2017-06-26 2020-04-15 Animex International Ltd Animal bridge
GB2578024B (en) * 2017-06-26 2022-03-02 Ecosupport Ltd Animal bridge
CN112099025A (zh) * 2020-08-20 2020-12-18 杭州飞步科技有限公司 桥吊下的车辆定位方法、装置、设备及存储介质
CN112099025B (zh) * 2020-08-20 2024-04-02 杭州飞步科技有限公司 桥吊下的车辆定位方法、装置、设备及存储介质

Also Published As

Publication number Publication date
NO20043888D0 (no) 2004-09-16
DE602005027585D1 (de) 2011-06-01
EP1794370A4 (fr) 2010-03-24
NO322691B1 (no) 2006-11-27
EP1794370B1 (fr) 2011-04-20
EP1794370A1 (fr) 2007-06-13
NO20043888L (no) 2006-03-17
ATE506489T1 (de) 2011-05-15

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