FR2882376A1 - Signage and safety equipment e.g. speed bump pad, for use on ground or roadway, has plates with lag screws that are installed in traversing orifices such that upper ends of threaded rods do not exceed top of plate - Google Patents

Abstract

The equipment has plates including a set of traversing orifices (4) with threaded housings. The housings receive threaded rods that are terminated by loops or hooks. Another set of traversing orifices (6) anchors the plates in the ground and emerges on top of the plates by cavities. Each plate has lag screws installed in the orifices (6) such that upper ends of threaded rods of the screws do not exceed the top of the plate. An independent claim is also included for a method of installing a signage and safety equipment.

Description

Field of the invention

  The present invention relates to a road safety and signaling equipment, removable consisting of at least one plate installed on the roadway.

  The invention also relates to a method of setting up such equipment.

  State of the art The road safety and signaling equipment usually used is embedded in the ground or is attached to soils which are themselves cast in the ground or prefabricated and installed in the ground.

  In the case of cushions: speed bumps, a de-cut is made in the road to install the retarder cushion, prefabricated.

  These various embodiments and methods of installation are relatively complicated in that it is necessary to break the rubbing or the pavement to make the cavity in which a concrete block is poured serving as a base or one installs a prefabricated base or one the pavement stretches over part of its width to install a retarder cushion.

  In addition, in the case of retarder cushions, the means to be implemented for the installation are relatively important since the retarder cushion is a piece of concrete, heavy, large, requiring a handling device. The placement of the cushion itself is delicate to respect the level that the cushion must have in the transverse direction and the longitudinal direction of the roadway.

  In addition, the disassembly of a retarder cushion is relatively complicated. In general, it is broken by a jack hammer and the cavity in which it has been laid is demoted to repair the roadway if the retarder cushion is to be removed.

  These works are not only long and expensive but, by the very fact of their duration, they constitute a significant inconvenience for the circulation.

  OBJECT OF THE INVENTION The object of the present invention is to develop road safety and signaling equipment and in particular a retarder cushion which is particularly simple to produce and to install with simple handling means and also to dismantle. or an easy replacement.

  DESCRIPTION AND ADVANTAGES OF THE INVENTION To this end, the invention relates to safety and signaling equipment of the type defined above characterized in that the plate comprises: s - three through-holes lined with threaded housings, distributed to receive removable, handling and adjusting threaded rods, orifices passing through the plate and each opening into the upper surface of the plate through a cavity, lag bolts installed in the through holes to be sealed in the roadway and retain the plate .

  The safety equipment thus constituted by a simple plate to be made and installed allows multiple combinations of machines, including the assembly of several plates, for example to achieve a cushion retarder. Such a plate is of a particularly simple implementation and it remains removable.

  The invention also relates to a method for installing such equipment, this method being characterized in that after having defined the location of the equipment on the ground, cavities are made to receive the end of the equipment. lag bolts for anchoring in the ground, these cavities being larger than the ends of the bolts and filled with a sealing compound, and then the plate of the packed safety element is lowered its tie rods protruding from the lower surface of the plate, the plate being supported by the hooks engaged in the threaded housing of the orifices, to lower the end of the lag bolts in the cavities filled with sealing compound, and then the plate to the desired level, screwing the threaded rods into the threaded housing of the plate to support the lower ends of the threaded rods on the floor and support the plate in the desired position for the duration of the sealing compounds are sealed, the plate and, if appropriate, the seals are sealed in the case of assembled plates, and a pouring compound is poured through a pouring orifice to fill the gap between the plate and the soil surface. and after taking this sealing mass is removed the threaded rods and after final setting is tightened the tie rods to tighten the plate.

  The invention also relates to a method of placing a plate of safety and signaling equipment, this method being characterized in that after defining the location of the equipment on the ground, it is makes cavities for receiving the ends of the lag bolts for anchoring in the ground, these cavities being larger in size than the end of the bolts and filled with a sealing compound, mass on the surface of: the location receiving the plate, then down the plate of the security element, lined with its tie rods protruding from the lower surface of the plate, the plate being supported by the hooks engaged in the threaded housing o: lices, to lower the end of the lag bolts into cavities filled with sealing compound, then put the plate at the desired level, screwing the threaded rods into the threaded housing of the plate to support the ex lower tremities of the threaded rods on the ground and support the plate in the desired position throughout the setting time of the sealing masses.

  The elements of the plate that is to say the fixing of threaded rods handling also for the positioning of the plate allow a particularly simple implementation because unlike the usual techniques of fixing certain equipment such as masts lighting, it does not realize foundations provided with tie rods on which the plate is reported or more generally the security and signaling equipment according to the invention but in reverse, the tie rods are initially carried freely by the plate and these tie rods are sealed while they are already installed on the plate, the positioning, that is to say, especially the adjustment of the level of the plate being made not by the tie rods but by separate, removable means also having a handling function that is to say the threaded rods. These threaded rods allow a very precise adjustment of the position by sirrple screwing.

  The method according to the invention also makes it possible to easily combine several plates for example to form a retarder cushion constituted by four plates, two by two symmetrical or other equipment such as for example a separation inlet between two traffic lanes to receive the signs and arrows. These different elements constituting a larger assembly can be installed successively one after the other or in combination, for example four plates constituting a retarder cushion.

  According to the invention it is sufficient to close the junction between the plates with a removable adhesive tape to be able to fill the gap under the plates and between the plates with the aid of a sealing compound introduced in this closed chamber, as much as the periphery of the plate or plate assembly itself is rendered watertight relative to the ground to prevent the filling mass from leaking through the intervals which generally remain in a more or less regular between the underside of the edge of the plate and the upper surface of the roadway.

  According to the invention, with the exception of cavities of relatively small dimensions made in the ground or the floor to receive the sealing compound Io and the feet of the tie rods, the establishment of a plate according to the invention requires no special preparation of the pavement, destroying the surface of coating to be hung below the surface of coating.

  The very small thickness that can be given to the plate thanks to its ultra-high performance concrete structure makes it possible to make a plate of sufficiently small height not to exceed the regulatory dimensions of retarder cushions even if the plate or plates constituting the retarder cushion are installed above the surface of the roadway and not embedded in it.

  When dismantling, the situation is very simple. It suffices to disengage the heads or nuts from the tie rods to unscrew the tie rods whose rods, each protected by a plastic tube, are not hooked to the sealing compound; the feet of the tie rods then remain in the cavities. The plate can thus be removed to be replaced if necessary or if it is removed, simply cut the tubes that protrude from the cavities, and simply plug the holes.

  According to an advantageous characteristic, the plate is a signaling medium receiving a sign or a signaling element. According to the invention the plate may also consist of a hollow part in the front edge, the corners and the lateral edges are inclined. Only some of the side edges may be inclined or only some side edges without the leading edge or the trailing edge.

  According to another advantageous characteristic, the rectangular-shaped plate has a front edge and an inclined lateral edge on the first small side and the first large side or on the second small side and the second long side, to constitute two sets of symmetrical plates by relative to a plane or four sets of symmetrical plates 2882376 5 relative to two perpendicular planes, to be joined and constitute a cushion retarder.

  Drawings The present invention will be described in more detail below with the aid of different embodiments of equipment according to the invention and a method of installation of equipment shown in the accompanying drawings in which: FIG. 1 is a vertical sectional view of a schematic example of a road safety and traffic signage plate according to the invention, FIG. 2 is a plan view of the plate of FIG. 1, FIG. is a sectional view of the plate of FIGS. 1 and 2, equipped with its lag bolts and lifting rods, FIGS. 4A-4G show different stages of installation of the plate of the safety and signaling equipment. according to FIG. 3, FIG. 5 is a top view of a retarder cushion produced using four plates such as those of FIGS. 1 and 2, FIG. 6A is a top view of a plate for fixing road equipment such as a sign 6B is a vertical sectional view of the plate of FIG. 6A. DESCRIPTION OF EMBODIMENTS FIGS. 1 and 2 show schematically an example of road safety and signaling equipment that can be dismantled. This equipment consists of one or more plates such as the one shown schematically to describe the general characteristics and the method of its implementation. The plate is preferably of fiber-reinforced high-performance concrete, which makes it possible to produce a very thin plate having extremely high mechanical characteristics.

  To simplify the description and presentation of the invention, the plate 1 shown in section and in plan view in Figures 1 and 2, is shown schematically by a rectangular form of principle without correpondre to an effective embodiment. It has edges 2 defining an open cavity 3 under the plate. The edges 2 of the plate will be more or less rounded or formed by inclined faces 21 as diagrammatically indicated on one side only of the plate seen in section. The shape of the edge depends mainly on the use of the plate. If the plate is intended to form a retarder cushion, it will have very inclined edges whereas if the plate or, more generally, the element is a border, the edge will be more or less straight. It will also be able to function as wheel-carriages, for example to make a refuge. In the case of a plate serving as a base for equipment such as a red light mast or a signal mast, the edges will be more or less straight with, in the upper part, a leave to have no edges bright.

  This plate 1 according to the invention, intended to be used alone or. to be combined with plates of the same type, for example to form a retarder cushion, has through holes 4 provided with threaded housings 41. These through holes 4, preferably three in number, are distributed in the plate 1 and are spaced at maximum possibilities so that the center of gravity of the triangle whose peaks are occupied by these threaded housing, coincides substantially with the center of gravity (in top view) of the plate. The threaded housings 41 are constituted by threaded sleeves or turns integrated in the plate 1 at the time of manufacture. These threaded housings 41 receive threaded rods 5 terminated by a loop 51 or a hook such as those presented at. Figure 3 to allow the handling of the plate 1 by a hoist by means of slings. These threaded rods 5 are first used for handling, for example the loading of the plates on a truck or unloading and setting them up as will be seen next. To reduce congestion, during transport, the threaded rods can be removed.

  The plate 1 also has through holes 6, for example four in number, distributed in the vicinity of the four corners to anchor the plate 1 in the ground or the floor. The through holes 6 each open into the top 11 of the plate by a cavity 61 so as to form a shoulder 62. The through holes 6 receive lag bolts 7 constituted by a threaded rod 71, screwed by its lower end under the plate in an enlarged head 72 or a plate (Figure 3); the upper end, 73 is provided with a welded nut 74 which is received in the cavity 61 and rests on the shoulder 62. These lag bolts 7 whose rod is surrounded and protected by a plastic tube, are installed in their through hole so that the upper end of the threaded rod, provided with the welded nut, does not protrude from the top 11 of the plate 1.

  The plate 1 comprises, where appropriate, a fill-wise opening 12 opening into the cavity 3 under the plate.

  Figure 3 shows, in section, a plate 1 equipped for its installation. It has received the threaded rods 5 of sufficient length to screw into the threaded housing 41 and protrude from below the lower plane 13 of the plate 1, defined by its lower contour.

  The lag bolts 7 provided with tubes protecting the threaded part are also put in place. They are in fact suspended in the through orifices 6 being each retained by its nut 74 pressed against the shoulder 62 of the cavity 61. The cavities 61 are deep enough so that the upper surface of the nuts 74 remains under the upper surface. 11 of the Io plate. The lag bolts 7 with their nut 74 remain below the upper surface 11 of the plate.

  FIGS. 4A-4G show schematically the different phases of installation of a plate 1 of road safety or signaling equipment according to the invention.

  In a first step (FIG. 4A), the installation location E of the equipment is defined by drawing on the ground, the contour or R markers to install the equipment, that is to say the plate 1.

  Then, during a second step (FIG. 4B), the locations of the anchoring cavities of the plate are drawn with a template G and, after removal of the template G, the cavities CV are dug for receiving the feet of tie rods. . In the example of its plate 1, there will thus be four cavities CV.

  After having made the cavities and before placing the plate, the cavities are filled with a sealing compound MS. Then, down the plate 1 hooked by its hooks 5 to a handling machine, so that. position the plate in relation to the R marks on the road (Figure 4C). During this installation, the plate 1 is supported on the ground by the end 52 of the threaded rods 5, the tie rods 7 still being freely suspended. Then, the plate 1 is placed at the level N provided. It can be a horizontal or inclined level (Figure 4D). The leveling of the plate 1 is done by using the threaded rods 5 which are screwed into the plate to support it at three points, that is to say the three bearing points formed by the end 52 5. When the tie-rods come down with their foot into the sealing compound filling the cavities, the tubes surrounding the threaded rods of the tie-rods protect them and prevent the sealing compound from reaching the threads.

  2882376 s After this level adjustment, the edges 2 of the plate 1 do not necessarily rest on the floor or the ground S over its entire periphery, to. because of the unevenness of the soil which is not always flat. This situation has been exaggerated in the figures.

  The contour of the plate I is closed in a sealed manner with the aid of a sealing paste 8 applied from the outside under the contour of the plate, this contour being protected by an adhesive tape 81 (FIG. 4E). After hardening of this fast-setting sealing compound (for example 1 hour), cavity 3 can be filled between plate 1 and the surface of soil S with a grout. For this purpose, the fill-wise orifice 12 (FIG. 4F) is used as shown schematically in the funnel 9. The threaded rods 5 which have served as a support for adjusting the level of the plate 1 are removed after a sufficient setting of the anchor mass and the cement filling the cavity 3. When the mass in the anchoring cavities has sufficiently hardened, the nuts 74 of the lag bolts 7 are tightened and the cavities 61 are closed around the nuts and the orifices 4 threaded figures as well as the filling orifice 12 and the adhesive strips 81 having protected the contour of the plate (FIG. 4G) are removed and the cavities and orifices are closed with grease or plugs in order to maintain the accessibility to the cavities and to the orifices of the threaded rods.

  Depending on the case, it is possible to provide a vent in addition to the filling orifice 12 so as to facilitate the evacuation of the air trapped in the cavity 3 under the plate 1 at the time of casting of the filler mass.

  Although the example described above relates to the installation of a plate having a hollow underside, the importance of this cavity or at least its height may be greater or smaller. The thickness of the plate, if one uses a very resistant product, can be very thin and it is the same of the cavity under the plate which can be reduced to one or two centimeters of height to absorb the most irregularities. large soil or pavement. The cavity can also be removed.

  In the case of a cavity under the thin plate, it is also possible to consider a sealing by a pasty mass placed before the installation of the plate. There will then be the cavities at the feet of the tie rods and the sealing compound to fill the gap that remains between the plate and the surface of the ground or pavement. The sealing compound 8 filling the free space (cavity or not) under the plate is not provided systematically. It depends on the use of the plate and its resistance. In some cases, the plate may be hollow below and sealed or sealed only over the width of its edge. The installation of the sealant is then done before installing the plate: after having outlined its outline in the place planned for its installation, one applies the product of sealing or sealing on the width of the surface of d support the edge of the plate and then install the plate.

  Figure 5 is a top view of a retarder cushion formed by the assembly of four plates 101-104 such as that described above and installed according to the method of the invention. These plates 101-104 are two by two symmetrical because they each comprise two inclined sides 101A, 101B, 102A, 102B, 103A, 103B, 104A, 104B; they are put in place as described for a single plate. Once the plates are in place and adjusted in height, the outline of all the four plates is closed in a leaktight manner and the junction of the plates two by two is sealed with an adhesive tape (according to the medians of the large rectangle) leaving an opening preferably at the high point to sink the mass of fill-wise or sealing.

  Figures 6A, 6B show another form of plate 200 according to the invention constituting the base of a signaling device. This base comprises, in its lower face, a cavity 201 like that of the plate described in a general manner and its implementation is done in the same way.

  The invention relates, in general, plates for road safety and signaling equipment in the form of removable parts. These plates of greater or lesser thickness, or even blocks, may comprise retarder cushions, signal supports, roadway separators or products for urban development.

  These plates or products are preferably made of ultra-high performance, fiber-reinforced concrete, making it possible to produce very thin plates having extremely high mechanical characteristics. The characteristics of such a concrete are at. For example the following: compressive strength, high, greater than 100 MPa linear increase in strength over 28 days can exceed Mpa flexural tensile strength greater than 13 MPa Io good adhesion performance, measured coefficient pendulum is greater than 0.54 (NF EN 13036-4) good fatigue behavior material with high ductility materials with self-cleaning capabilities. io

Claims (7)

  1) Equipment for safety and road signaling, removable consisting of at least one plate installed on the road, characterized in that the plate (1) comprises: through orifices (4) lined with threaded housing (41), distributed for receiving removable, handling and adjusting threaded rods (5), openings (6) passing through the plate (1) and each opening into the upper surface of the plate by a cavity (61), lag bolts ( 7) installed in the through holes (6) to be sealed in the roadway (S) and retain the plate (1).   2) Equipment according to claim 1, characterized in that the plate (1) comprises at least three through holes (4) lined with threaded housings (41) and an orifice (6) for receiving a lag bolt (7) in the each corner of the plate.   3) Equipment according to claim 1, characterized in that the plate (1) is a signal support receiving a sign or signaling element.   4) Equipment according to claim 3, characterized in that the plate (200) consists of a hollow part (201) whose front edge, the corners and / or the side edges are inclined.   5) Equipment according to claim 1, characterized in that the rectangular-shaped plate (101) has a front edge (101A) and a lateral edge (101B) inclined on the first short side and the first large side or the second small side and the second large side, to form two sets of plates symmetrical with respect to a plane or four sets of plates symmetrical with respect to two perpendicular planes, to be joined and constitute a cushion retarder.   6) Equipment according to claim 5, characterized in that the opposite edges of the four plates (101-104) constituting the retarder cushion are separated from an interval receiving a filling mass-5 sage.   7) Method for installing road safety and signaling equipment according to one of claims 1 to 6, characterized in that after defining the location (R) of the equipment on the ground, it is releasable cavities (CV) for receiving the end of the lag bolts for anchoring in the ground, these cavities being larger in size than the ends of the lag bolts and being filled with a mass of seal (MS), then, down the plate of the security element, lined with its tie rods (7) protruding from the lower surface (13) of the plate, the plate (1) being supported by the hooks ( 51) engaged in the threaded housings (41) of the orifices (4), to lower the end (72) of the lag bolts in the cavities (CV) filled with sealing compound (MS), and then the plate ( 1) at the desired level (N), screwing the threaded rods (5) into the threaded recesses (41) of the plate to support the lower ends. (52) threaded rods (5) on the ground (S) and support the plate (1) in the desired position throughout the setting time of the sealing masses, the peripheral sealing (8) of the plate is carried out (1) and, if necessary, that of the joints in case of assembled plates, and poured, a sealing mass to fill the gap between the plate (1) and the surface (S) of the ground, and after setting of this sealing mass, the threaded rods (5) are lifted and after final setting the tie rods (7) are tightened to tighten the plate (1).   8) A method of installing a road safety and signaling equipment according to one of claims 1 to 6, characterized in that - after defining the location (R) of the equipment on the ground, cavities (CV) are formed to receive the end of the lag screws for anchoring into the ground, these cavities being larger in size than the end of the lag bolts and filled with a sealing mass (MS), a mass is spread on the surface of the location receiving the plate, then the plate of the security element is lowered, lined with its threads (7) protruding from the lower surface (13). ) of the plate, the plate (1) being supported by the hooks (51) engaged in the threaded housing (41) of the orifices (4), to lower the end (72) of the lag bolts in the cavities (CV) ) filled with sealing compound (MS), then the plate (1) is placed at the desired level (N), screwing the threaded rods (5) lo into the s threaded housing (41) of the plate to support the lower ends (52) of the threaded rods (5) on the ground (S) and to support the plate (1) in the desired position throughout the setting time of the sealing compounds .