EP2392734A1 - Concrete module for dividing roadways and dividing barrier including a plurality of such modules - Google Patents

Abstract

The module (1) has male and female assembling elements formed from metal parts anchored in a concrete block (11). The male assembling element has a cylinder (12) and a sleeper (20) projecting relative to the block and an upper reservation (24) opening on a flat (6) of the module. A female assembling element has a hollow semi-cylinder (42) partially receiving a cylinder of another separation module (100), a reservation opening on a flat of the former module and a lower reservation (52) opening on a base of the former module and receiving a gusset (22) of the latter module. An independent claim is also included for a concrete track separation barrier, comprising separation modules.

Description

The present invention relates to a concrete lane separation module, as well as a separation barrier comprising several modules of this type.

In the field of road and highway infrastructure, it is known to use modular separators of concrete tracks, these separators can be connected to create barriers of different lengths. Such barriers can be put in place to protect work areas. Such separators are likely to suffer significant shocks in case of road accidents. In the event of shocks, the dividers must as far as possible remain in their place, remain hooked and withstand shocks in order to ensure the safety of persons or goods present on a work area.

In this view, solutions of the prior art use modular concrete separators comprising a male end and a female end adapted to fit and possibly be fixed with a male or female element of another separator. Generally, the male end consists of a half-cylinder projecting from the end of the separator, and the female end into a hollow half-cylinder formed on the other end of the separator. This geometry is studied in order to allow a pivoting of the separators with respect to each other in order to dampen shocks and to follow a lane in turn.

Problems of fragility and impact resistance arise with the known modules, while the connection between the separators is relatively inefficient.

It is these drawbacks that the invention intends to remedy more particularly by proposing a new concrete track separation module whose connection system is metallic, having a better impact resistance and whose handling is facilitated.

To this end, the invention relates to a concrete lane separation module, this module comprising a concrete block, a male element and a female assembly element each located at one end of the concrete block. This separation module is characterized in that the male and female assembly elements are formed of metal parts anchored in the concrete block, in that the male assembly element comprises a cylinder projecting from the concrete block. and extending around an axis perpendicular to a longitudinal axis of the module, a sole protruding from the concrete block and extending along the longitudinal axis of the module and having a gusset protruding from the sole, according to an axis parallel to the axis of cylinder, and a reservation opening on an upper face of the module, while the female element comprises a hollow half-cylinder adapted to partially receive a cylinder projecting from another module, a reservation opening on the upper face of the module and a reservation opening on a lower face of the module, adapted to receive the gusset of another identical module.

Thanks to the invention, the attachment between two separation modules is via two metal parts locked relative to each other in several places. This construction provides better rigidity to the assembly, better shock absorption and is a fastening system easier to use.

• Les réservations présentent des rampes inclinées adaptées pour coopérer avec des rampes correspondantes pratiquées sur le gousset et sur une clé de verrouillage, et alors que ces rampes divergent de l'axe longitudinal du cylindre ou demi-cylindre voisin en direction d'une partie centrale du module selon cet axe.
• Les éléments mâle et femelle sont ancrés dans le béton par l'intermédiaire de fers orientés selon une direction longitudinale du module.
• Le bloc de béton présente une forme prismatique, dont la base a une longueur comprise entre 4000 et 10000 mm, de préférence 6000 mm, et une largeur comprise entre 250 et 350 mm, de préférence 300 mm, et dont la hauteur est comprise entre 600 et 800 mm, de préférence 700 mm.
• Le bloc de béton présente, de part et d'autre du cylindre en saillie, deux pans orientés avec des angles de dépouille inférieurs à 5° par rapport à un plan transversal du module perpendiculaire à l'axe longitudinal du module et contenant l'axe longitudinal du cylindre.
• Le cylindre en saillie porte, sur sa face supérieure, une tige filetée coaxiale au cylindre et apte à s'engager dans un orifice correspondant d'une clé de verrouillage.
• Le cylindre en saillie comporte, sur sa face supérieure, un perçage taraudé coaxial au cylindre et adapté pour recevoir une vis engagée dans un orifice d'une clé de verrouillage.

According to advantageous but non-mandatory aspects of the invention, such a module may incorporate one or more of the following features, taken with all technically permissible combinations:

• The reservations have inclined ramps adapted to cooperate with corresponding ramps on the gusset and a locking key, and while these ramps diverge from the longitudinal axis of the cylinder or neighboring half-cylinder towards a central portion of the module according to this axis.
• The male and female elements are anchored in the concrete by means of irons oriented in a longitudinal direction of the module.
• The concrete block has a prismatic shape, whose base has a length of between 4000 and 10000 mm, preferably 6000 mm, and a width of between 250 and 350 mm, preferably 300 mm, and whose height is between 600 and 800 mm, preferably 700 mm.
• The concrete block has, on both sides of the projecting cylinder, two facing faces with clearance angles less than 5 ° with respect to a transverse plane of the module perpendicular to the longitudinal axis of the module and containing the axis longitudinal cylinder.
• The cylinder protruding door on its upper face, a threaded rod coaxial with the cylinder and adapted to engage in a corresponding hole of a locking key.
• The projecting cylinder comprises, on its upper face, a tapped hole coaxial with the cylinder and adapted to receive a screw engaged in a hole of a locking key.

The invention also relates to a concrete track separation barrier comprising at least two separation modules as mentioned above, secured by a locking key.

• La clé de verrouillage est adaptée pour se bloquer dans la réservation supérieure de l'élément mâle d'un des modules et dans la réservation supérieure de l'élément femelle de l'autre module.
• La clé de verrouillage est pourvue d'un orifice apte à recevoir un élément fileté coaxial au cylindre en saillie de l'élément mâle.

According to advantageous but non-mandatory aspects of the invention, such a barrier may incorporate one or more of the following characteristics, taken with all technically permissible combinations:

• The locking key is adapted to lock in the upper reservation of the male element of one of the modules and in the upper reservation of the female element of the other module.
• The locking key is provided with an orifice adapted to receive a threaded element coaxial with the cylinder projecting from the male element.

• la figure 1 est une vue en perspective d'un module de séparation conforme à l'invention,
• la figure 2 est une vue en perspective d'une extrémité du module de séparation de la figure 1 portant un élément mâle d'assemblage ancré dans un bloc de béton représenté en traits mixtes,
• la figure 3 est une vue en perspective d'une extrémité du module de séparation de la figure 1 portant un élément femelle d'assemblage ancré dans un bloc de béton représenté en traits mixtes,
• la figure 4 est une vue en perspective d'une clé de verrouillage utilisée pour l'assemblage de deux modules conformes à l'invention,
• la figure 5 est une vue de dessus à plus grande échelle de deux modules de séparation solidarisés pour former une partie d'une barrière conforme à l'invention,
• la figure 6 est une coupe selon l'axe X-X' à la figure 5,
• la figure 7 est une vue en perspective d'une barrière de séparation conforme à l'invention,
• la figure 8 est une vue analogue à la figure 5, dans une configuration où les deux modules constituant la barrière ne sont pas alignés.

The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a separation module according to its principle, given solely as a example and refer to the accompanying drawings in which:

• the figure 1 is a perspective view of a separation module according to the invention,
• the figure 2 is a perspective view of one end of the separation module of the figure 1 carrying a male fastener anchored in a concrete block shown in phantom,
• the figure 3 is a perspective view of one end of the separation module of the figure 1 carrying a female fastener anchored in a concrete block shown in phantom,
• the figure 4 is a perspective view of a locking key used for assembling two modules according to the invention,
• the figure 5 is a top view on a larger scale of two separation modules secured to form a part of a barrier according to the invention,
• the figure 6 is a section along the axis XX 'to the figure 5 ,
• the figure 7 is a perspective view of a separation barrier according to the invention,
• the figure 8 is a view similar to the figure 5 in a configuration where the two modules constituting the barrier are not aligned.

In the present description, we consider channel separation modules in a normal configuration of use and resting on a flat and horizontal floor. Under these conditions, the adjectives "superior", "lower", "horizontal" and "vertical" and the equivalent notions such as "high" and "low" are understood with reference to this configuration.

The separation module 1 shown in FIG. figure 1 comprises a concrete block 11 of generally prismatic shape. It is intended to be placed on the ground and includes this a base 3, in which are provided two notches 5 provided to allow the passage to possible water flows.

XX 'is the longitudinal axis of the module 1. ZZ' denotes an axis perpendicular to the base 3 and which defines in the following a vertical direction when the module 1 rests on a horizontal surface. The base 3 of the module 1 has a substantially rectangular shape, the length L ₁ of the order of 6000 mm is greater than that of conventional separators, and whose width I ₁ , of the order of 300 mm, is less to that of conventional separators. The height of the module 1 is of the order of 700 mm. The length L ₁ is measured parallel to the axis X-X ', the height H ₁ is measured parallel to the axis Z-Z'. The width I ₁ is measured perpendicular to the axes XX 'and Z-Z'.

On a first end 7 of the concrete block 11, a male metal assembly member 10 is anchored in the concrete by means of longitudinal irons 2, possibly passing through the module over its entire length. The male assembly element 10 is advantageously made of steel.

The male assembly element 10 comprises a cylinder 12 projecting from the end 7 of the concrete block 11. The cylinder 12 is centered on a longitudinal axis A ₁₂ , parallel to the axis Z-Z '. A longitudinal half of this cylinder 12 protrudes from the end 7. This cylinder 12 is provided on its upper face 13 with a threaded rod 15 coaxial with the cylinder 12.

The male element 10 assembly comprises at its base a sole 20, part of which is embedded in the concrete block 11 and the other part protrudes from the end 7 of the concrete block 11 along the axis X- X '. This sole 20 serves as a base for the cylinder 12. On its projecting portion, the sole 20 comprises a gusset 22, which consists of a flat wall, extending above the sole 20 in a median plane P ₁ containing the axes XX 'and Z-Z', and directed along an axis A ₂₂ parallel to the axis A ₁₂ of the cylinder projecting. The sole 20 may consist of a solid casting part, or a folded sheet metal part optionally comprising reinforcements.

Note 4 the upper face of the concrete block 11. On this upper face 4 and the end side 7, the module 1 has a flat 6, allowing the threaded rod 15 to project from the module 1, without exceeding the above 4, which allows the stacking of several modules 1.

The male assembly element 10 has a reservation 24 anchored in the concrete and opening on the flat part 6. This reservation 24 extends on either side of the plane P ₁ . In the configuration of use of the module 1, the reservation 24 is open upwards and opens out on the flat part 6.

The end 7 of the concrete block 11 has two flaps 71 and 72 on either side of the cylinder 12. These flaps 71 and 72 have relief angles α less than 5 °, preferably equal to 2 °, relative to to a plane P ₂ perpendicular to the plane P ₁ and to the axis X-X '. These sections 71 and 72 extend from the cylinder 12 in a direction opposite to the sole 20, along the axis X-X '.

On one end 8 of the concrete block 11 opposite the end 7 along the X-X 'axis, a female metal assembly member 40 is anchored in the concrete by means of irons 2. This female element 10 is advantageously steel. The female assembly member 40 comprises a hollow half-cylinder 42 anchored in the concrete, and extending along an axis A ₄₂ parallel to the axis Z-Z '. This hollow half-cylinder 42 opens, on its upper face 44, on a flat part 46 of the module 1, and on its lower face 48 in a housing 50 made in concrete and extending on either side of the plane P ₁ , to the base 3.

The irons 2 can advantageously connect the male and female assembly members 40 through the concrete block 11, giving the separation module 1 a high rigidity.

The hollow cylinder 42 has an inner diameter D ₄₂ substantially equal to the outer diameter of the cylinder 12, which allows the cylinders 12 and 42 to have complementary shapes.

The female assembly member 40 has two reservations 52 and 54. The reservation 52, said lower, is anchored in the concrete, extends on either side of the plane P ₁ and opens on the housing 50. The so-called upper reservation 54 is also anchored in the concrete, also extends on both sides of the plane P ₁ and opens on the flat portion 46 of the module 1. The lower 52 and upper 54 reservations are fixed to the hollow cylinder 42, for example by welding.

Reservations 24, 52 and 54 are substantially identical shapes. They each have a parallelepipedal shape, with the exception of a clamping ramp 30. This ramp is inclined relative to the axis A ₁₂ and A ₄₂ adjacent and arranged on the face of the reservation 24, 52 or 54 the most close to the respective cylinder 12 or 42 to which it is connected. These ramps 30 respectively diverge from the axes A ₁₂ or A ₄₂ in the direction of the central portion C of the module 1 located midway, in the vertical direction, of the base 3 and the upper face 4 of the concrete block 11.

The gusset 22 of the male assembly element 10 also comprises a clamping ramp 32 whose geometry is similar to the ramps 30 of the reservations 24, 52 and 54.

The operation is as follows. When a work team decides to assemble a concrete separation module 1 with another separation module 100 to create a separation barrier B, the two modules are approached from one another so that a male assembly element 10 carried by the module 1 faces a female assembly member 40 carried by the module 100. To assemble the module 1 and the module 100, the end 8 of the module 100 carrying an element is raised female assembly 40, in order to cover the gusset 22 of the male element 10 of assembly of the module 1 with the reservation 52 of the female element 40 of assembly of the module 100, when the latter is rested on the ground. Simultaneously, the sole 20 of the male coupling element 10 of the module 1 is received in the housing 50 of the module 100 and the projecting half-cylinder 12 of the male element 10 is received in the hollow half-cylinder 42 of the female element 40. The assembly of the modules 1 and 100 is then realized.

To lock the assembly of the barrier B, a locking key 80 is used. This locking key 80 is a metal part carrying two gussets 82 similar to the gusset 22 and aligned in the same plane. These two gussets 82 each comprise, on an opposite face, a clamping ramp 84 similar to the ramps 30 and 32, diverging from a median axis X ₈₀ away from a base 86 of the key 80 .

According to this base 86 and at the level of the X axis ₈₀ , the locking key 80 has a hole 88 passing through the locking key and equidistant from the gussets 82.

The locking key 80 may consist of a solid casting. It may also consist partly of a metal sheet fold possibly comprising reinforcements.

In order to lock the modules 1 and 100, the gussets 82 of the locking key 80 are inserted into the upper reservations 54 of the female element 40 of the assembly of the module 100 and in the upper reserve 24 of the male element 10. assembly of the module 1. This insertion of the locking key 80 continues with the engagement of the threaded rod 15 of the male assembly member 40 of the module 1 in the hole 88 of the locking key.

The geometry of the locking key 80 is studied so that a part of the threaded rod 15 protrudes from this key in order to screw a nut 90, represented only in the figure 6 , which makes it possible to tighten the locking key 80 against the upper face 13 of the projecting cylinder 12. Such clamping makes it possible to exert a surface support between the ramps 30 of the reservations 24 and 54 and the ramps 84 of the gussets 82, as well as between the ramp 32 of the gusset 22 and the ramp 30 of the reservation 52. These surface supports make it possible to transform the force E ₁ exerted by the locking key along the axis A ₁₂ in E ₂ efforts along the axis XX 'tending to bring the male element 10 assembly of the module 1 and the female element 40 assembly module 100 of one another. In this way, the contact between the cylinders 12 and 42 is kept tight, which makes it possible to stiffen the structure and to reduce play. This results in steel / steel cooperation with better rigidity than concrete / concrete cooperation.

In case of shocks, the barrier B is likely to deform despite the rigidity of the structure. If such a case occurs, it is possible that one of the modules rotates relative to the other along the axis A ₁₂ . In this case, the geometry of the panels 71 and 72 of the end 7 of the concrete block 11 of the module 1 is studied so as to create a surface support with the end 8 of the concrete block 11 of the module 100, which which allows a good distribution of forces in the concrete and improves the service life of the separation modules 1 and 100.

The invention leaves the possibility of securing several modules, and possibly to follow the barrier B light curves.

The flat part 6 of the module 1 and the flat part 46 of the module 100 together create a volume V ₁ for receiving the base 86 of the locking key 80. This volume makes it possible to insert the key on the threaded rod 15 without the locking key 80 does not protrude from the upper face 4 of the concrete block 11, in order to allow the stacking of several modules.

According to a not shown variant of the invention, the cylinder 12 does not comprise a threaded rod but a threaded bore which extends along the axis A ₁₂ from the face 13 and in which a screw, inserted in the hole 88 of the locking key 80, can be screwed to secure the locking key 80 with the modules 1 and 100.

Claims (10)

Track separation module comprising a concrete block (11), a male element (10) and an assembly female element (40) each located at one end (7, 8) of the concrete block (11), characterized in that the male (10) and female (40) assembly elements are formed of metal parts anchored in the concrete block (11), in that the male assembly element (10) comprises: a cylinder (12) projecting from the concrete block (11) and extending around an axis (A ₁₂ ) perpendicular to a longitudinal axis (X-X ') of the module, - a sole (20) projecting from the concrete block (11), extending along the longitudinal axis (X-X ') of the module (1) and having a gusset (22) protruding relative to the sole along an axis (A ₂₂ ) parallel to the axis of the cylinder (A ₁₂ ), a reservation (24) opening onto an upper face (6) of the module (1), in that the female element (40) comprises: - a hollow half-cylinder (42) adapted to partially receive a cylinder (12) projecting from a second module (100), - a reservation (54) opening on the upper face (46) of the module (1), - A reservation (52) opening on a lower face (3) of the module and adapted to receive the gusset (22) of another module (100) identical. Separation module according to Claim 1, characterized in that the reservations (24, 52, 54) have inclined ramps (30) adapted to cooperate with corresponding ramps (32, 84) made on the gusset (22) and on a locking key (80) and in that these ramps (30, 32) diverge from the longitudinal axis (A ₁₂ , A ₄₂ ) of the adjacent cylinder (12) or half-cylinder (42) towards a central portion (C) of the module (1) along this axis. Separation module according to claim 1 or claim 2, characterized in that the male (10) and female (40) elements are anchored in the concrete by means of irons (2) oriented in a longitudinal direction (X-X ') of the module (1). Separation module according to one of the preceding claims, characterized in that the concrete block (11) has a prismatic shape, whose base (3) has a length (L ₁ ) of between 4000 and 10000 mm, preferably 6000 mm, and a width (I ₁ ) between 250 and 350 mm, preferably 300 mm, and whose height (H ₁ ) is between 600 and 800 mm, preferably 700 mm. Separation module according to one of the preceding claims, characterized in that the concrete block (11) has, on either side of the cylinder (12) projecting, two sections (71, 72) oriented with angles of clearance (α) less than 5 ° with respect to a transverse plane of the module perpendicular to the longitudinal axis (X-X ') of the module and containing the longitudinal axis (A ₁₂ ) of the cylinder (12). Separation module according to one of the preceding claims, characterized in that the cylinder (12) projecting, on its upper face (13), a threaded rod (15) coaxial with the cylinder (12) and able to engage in a corresponding hole (88) of a locking key (80). Separation module according to one of claims 1 to 5, characterized in that the cylinder (12) projecting comprises, on its upper face (13), a tapped hole coaxial with the cylinder (12) and adapted to receive a screw engaged in an orifice (88) of a locking key (80). Separation barrier of concrete tracks, characterized in that it comprises at least two separation modules (1, 100) according to one of the preceding claims secured by a locking key (80). Concrete track separation barrier according to claim 8, characterized in that the locking key (80) is adapted to lock in the upper reserve (24) of the male element (10) of one (1) of the modules and in the upper reservation (54) of the female element (40) of the other module (100). Concrete track separation barrier according to claim 8 or 9, characterized in that the locking key (80) is provided with an orifice (88) adapted to receive a threaded element (15) coaxial with the cylinder (12). projection of the male element (10).

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