EP1927699B1 - Traffic guide wall - Google Patents

Abstract

Wall connectors (13) each have a connecting element (18), which fastens adjacent wall elements (10a,10b) on their end areas and has a locking element (20) to apply interlocking with a positive fit to the wall elements on their underside (24) crosswise to a traffic deflecting panel/wall.

Description

The invention relates to a Verkehrsleitwand with juxtaposed concrete wall elements and with the wall elements in the region of the front-side joints interconnecting wall connectors, wherein the wall connector each have at least one adjoining concrete wall elements at the end under cross-connecting element, the at least one wall elements at the bottom transverse to Having longitudinal direction of the traffic control wall positively interlocking locking element.

Traffic Guiding found in various configurations application on public roads, where they limit the lanes for motor vehicles laterally and in particular to ensure a separation of the different directions of travel. Traffic control walls are composed in particular in construction areas of individual segments whose length is dimensioned so that they can be transported to the place of use with conventional transport vehicles and picked up again by him. The length of the segments used for such purposes also depends in particular on their weight and thus their material; Segments for steel protective walls may, for example, have a length of more than 15 m, since such steel protective wall elements have a comparatively small specific weight based on their length. Known concrete wall elements are considerably heavier compared to wall elements made of steel with comparable length, because they have a comparatively wide foot area because of the generally required riot width, so that to be used for the known concrete elements concrete amount per unit length and thus the length weight is very large.

The problem with the known Verkehrsleitwänden with juxtaposed concrete wall elements often their connection to each other at the frontal joints, which is required for the breakthrough security to be ensured in the event of an impact with a vehicle. While the concrete wall elements usually resist impact without being significantly damaged, the wall connectors previously used have often proven to be weak points in the design. With the DE 93 01 089 U has been suggested to provide the wall elements on their undersides with circular blind holes, engage in the joint-forming bolts, which are arranged on the wall elements under cross-connecting tabs. In the US 2003/0161683 A1 On the other hand, it is provided to connect the wall elements to each other by means of profiled steel strips applied against their side surfaces, which are screwed to the side surfaces of the wall elements with the strips passing through the strips and the wall elements transversely to their longitudinal direction. With the help of angled between the wall element and profile strip angle plate, the second, horizontal leg rests on the ground, the construction can be secured to the ground.

The object of the invention is to provide a traffic barrier of the type mentioned, with a particularly secure connection of the concrete wall elements is achieved with each other, which also withstands a strong impact, for example by a truck directly in the region of a joint.

This object is achieved with the invention in that the locking element consists of at least one extending in the longitudinal direction of the wall elements, by the connecting element a piece towering latch spring, which engages in formed on the underside of the wall elements locking grooves. Likewise, it is of course also possible to design the at least one locking element in the form of an upwardly open, in cross-section U-shaped guide rail into which the wall elements can be inserted from above.

A structurally particularly advantageous design is obtained when the locking grooves arranged on the underside of the wall elements, downwardly open U-profile strips or else arranged by two parallel to each other, between which the locking grooves forming boundary strips are formed. The U-profile strips or the boundary strips then preferably extend only over a length which corresponds to the length of the locking spring which engages in or between them, so that the wall elements do not rise on the road in their middle region lying between the front ends, but rather between the wall elements and the road remains a gap through which rainwater can flow easily.

According to the invention, therefore, the concrete wall elements are positively connected to each other, wherein the positive contact extends over a distance from the end faces of the concrete wall elements over the length of or on the common connecting element arranged locking element (s). The length of the locking element of the end faces of the wall elements is dimensioned sufficiently large, so that a secure connection of the wall elements is mutually ensured, even if the traffic barrier according to the invention is taken directly at a junction of two wall elements of an approaching vehicle. The engagement length of the locking element on each of the two interconnected wall elements may for example be 500 mm and more, thus ensuring a sufficiently large connection strength.

As already indicated, the wall elements can have a cross section that is essentially constant over their height. To increase the strength of the connection of two wall elements, it has proven to be very advantageous if the underside connecting element and / or an upper side tab element have a front end region of the wall elements is provided with a form-fitting leading guide element, which projects, for example, in a preferred embodiment of the invention substantially from one of the connecting plate arranged guide profile, for example, a U-profile or an I-profile exists. In this case, the end-side end region of each wall element is laterally bordered by the two legs of the guide profile and the leg connecting the legs of the guide profile and thereby further reduces the risk of breaking the baffle in the impact of a vehicle. Of course, it is also possible that a guide profile is used with substantially approximately rectangular cross-section, for example, a square hollow profile, in which case the front ends of the two wall elements to be joined together are provided with U-shaped stiffening profiles whose legs the rectangular guide profile include laterally. The wall elements can be locked, for example by means of bolts on the guide profile, which is a simple and quick installation. Are conceivable for locking but of course other fasteners such as bayonet locks or the like ..

In order to further increase the safety of the traffic control wall, the upper-side tab element can also have a U-shaped cross section that overlaps the wall elements, with the downwardly projecting side legs of the U-shaped tab element profile engaging the lateral outer surfaces of the wall elements. In this embodiment, therefore, the wall elements are positively overlapped by the U-shaped tab element profile and aligned with one another in the longitudinal direction.

The invention enables a particularly advantageous mix of materials or components in that the wall connectors, ie the connecting and / or tab members, are preferably substantially made of steel, while the wall members are preferably made substantially of reinforced concrete. It has proved to be advantageous if the wall elements in the wall longitudinal direction and / or parallel to the wall element end faces extending reinforcement inserts. This design allows the transmission of large, extending in the longitudinal direction tensile forces on the appropriately prestressed reinforcement inserts.

The lower connecting elements and the upper-side tab elements can be secured in relation to one another with at least one securing element. Such a fuse element can for example be realized in that the connecting and tab elements are connected to directly acting on the wall elements securing means and thereby firmly connected to the wall elements. This can be done, for example, by cast in the wall elements eyelets, which are overlapped by the connecting and tab members with a recess provided for this purpose and the like then backup plunge. be plugged in.

Fig. 1

eine Ausführungsform einer gattungsgemäßen Verkehrsleitwand im Bereich einer Verbindungsstelle zweier Betonwandelemente in einer Seitenansicht und teilweise im Schnitt;

Fig. 2

ein bei der Verkehrsleitwand nach Fig. 1 zum Einsatz kommendes, unterseitiges Verbindungselement in einer Seitenansicht;

Fig. 3

den Gegenstand der Fig. 2 in einer Draufsicht;

Fig. 4

den Gegenstand der Fig. 2 und 3 in einer Ansicht längs der Linie IV;

Fig. 5

ein bei der Verkehrsleitwand nach Fig. 1 zum Einsatz kommendes oberseitiges Laschenelement im Längsschnitt;

Fig. 6

den Gegenstand der Fig. 5 im Querschnitt;

Fig. 7

ein Wandelement für die Verkehrsleitwand nach Fig. 1 in deren stirnseitigem Endbereich in einer Draufsicht;

Fig. 8

eine Ausführungsform der erfindungsgemäßen Verkehrsleitwand in einer Fig. 1 entsprechenden Darstellung;

Fig. 9

den Gegenstand der Fig. 8 in einer Draufsicht; und

Fig. 10

ein bei den Wandelementen der Verkehrsleitwand nach den Fig. 8 und 9 zum Einsatz kommendes Verbindungselement in einer perspektivischen Darstellung.

The traffic barrier according to the invention can be built very easily and quickly by first connecting plate elements are placed at the correct distance on the road and then the concrete wall elements are placed from above on the deposited fasteners so that their locking element recordings, so for example formed on the undersides of the wall elements Ruten , come into positive engagement with the or the locking element (s), ie in particular the latch springs and thereby always two wall elements are locked transversely to the wall longitudinal direction positively with each other. The (optional) upper-side tab element can then be placed from above and secured if necessary, in order to perfect the solid connection of the wall elements.
Further features and advantages of the invention will become apparent from the following description and the drawing, wherein a generic traffic control wall and a preferred embodiment of the invention will be explained in more detail by way of examples. It shows:

Fig. 1

an embodiment of a generic traffic control wall in the region of a junction of two concrete wall elements in a side view and partly in section;

Fig. 2

one at the traffic control wall Fig. 1 used, below-sided connecting element in a side view;

Fig. 3

the object of Fig. 2 in a plan view;

Fig. 4

the object of FIGS. 2 and 3 in a view along the line IV;

Fig. 5

one at the traffic control wall Fig. 1 used in the upper side tab element in longitudinal section;

Fig. 6

the object of Fig. 5 in cross-section;

Fig. 7

a wall element for the traffic control wall Fig. 1 in whose end-side end region in a plan view;

Fig. 8

an embodiment of the traffic control wall according to the invention in one Fig. 1 corresponding representation;

Fig. 9

the object of Fig. 8 in a plan view; and

Fig. 10

a in the wall elements of the traffic control wall after the Fig. 8 and 9 used for coming connection element in a perspective view.

The Fig. 1 and 8th show two each shown only over a partial length concrete wall elements 10a, 10b, which are connected to each other by means of wall connectors 13 to form a continuous, in its entirety designated 11 Verkehrsleitwand in the region of their frontal joints. In the Fig.1 illustrated and explained in detail below traffic control wall represents a generic embodiment, which is indeed not covered by the scope of the independent claims, but realizes constructive detail solutions, as they can be applied to the traffic control wall according to the invention, of which an embodiment in the Fig. 8 to 10 is shown.

The concrete wall elements 10 have a constant h over their height, rectangular cross-section. The thickness of the wall elements in the illustrated embodiment is 155 mm, while its height is 600 mm. In the central region of the concrete wall elements of the generic embodiment, which is in Fig. 1 right and left outside, they are provided on their underside with recesses 14, which constitute a reliable passage for water flowing over the road 15 on which the traffic control wall 11 is erected. The concrete wall elements 10 are reinforced with poured into the concrete, prestressed Moniereisen 16 which extend in the longitudinal direction 17 of the wall elements substantially over the entire total length.

The wall connectors 13 for connecting each of two concrete wall elements 10 a, b exist in the in the Fig. 1 to 7 illustrated version of a Verkehrsleitwandaus a lower-side connecting element 18 and an upper-side tab member 19, both of which are provided with two pivot pins 20 and 21, wherein the pivot pin 20 of the two wall elements engages under the connecting element 18 from below and the pivot pin 21 of the upper tab member 19 from above in pin receivers 22a, b in the concrete wall elements 10a, 10b which, in the concrete wall elements, are at a distance a (FIG. Fig. 7 ) are arranged from their end faces 12. The pin receivers 22 are formed by tubular sleeves 23 made of tubular steel, which are embedded in the concrete of the wall elements and enforce them continuously from the bottom 24 to the top 25. The Moniereisen 16 are connected in a manner not shown tensile strength to the tube sleeves 23, for example, the fact that they wrap around them or are welded before setting in with the tube sleeves.

In this Verkehrsleitwand so the upwardly projecting from the connecting element hinge pin locking elements that lock by their engagement in the tubular pin receptacles in the wall elements this particular transverse to the longitudinal direction of the traffic barrier form-fitting with each other. The upper tab element supports with its down into the journal receptacles pivoting pivot this positive locking.

The structure of the connecting element 18 is best from the Fig. 2 to 4 seen. It can be seen that it has a bottom plate 26 which has a greater width than the concrete wall elements. In the illustrated embodiment, the width of the bottom plate 26 is about 400 mm and its length is about twice as large. The two pivot pins 20 of the lower connecting element 18 are inserted through matching holes 27 in the bottom plate and welded thereto, as shown in FIG Fig. 2 is shown. In the middle of the bottom plate between the two pivot pins 20, an I-profile 28 is welded as a guide element on its upper side, which is adapted in its height to the height of the concrete wall elements and in the two approximately U-shaped guide grooves 29, the wall elements 10a, b with their front end portions 12a, b mounted in, in Fig. 1 form-locked border shown state.

The two concrete wall elements on the upper side additionally securing tab member 19 is made as in the FIGS. 5 and 6 can be clearly seen, from a U-shaped profile 30, in which the pivot pin 21 are welded so that they protrude downwards from the limited by the web 31 and the two legs 32, U-shaped guide 33. The distance of the pivot pin both in the lower connecting plate and the upper tab member is slightly larger than twice the distance a , the tube sleeves of the frontal joints 12 comply with the wall elements, so that between the two wall elements in the assembled state for the web of I. -Führungsprofils 28 a sufficiently large space between the two wall elements remains.

To assemble the traffic barrier according to the invention, at first two underside connecting plate elements 18 are laid at a distance from one another on the road 15, which corresponds to the length of a concrete wall element 10. The bottom plates 26 of the connecting elements 18 are not the whole area on the road, but are based on several rubber feet 34 on this off, which rubber feet Due to their thickness and elasticity not only can compensate for road bumps, but also serve as heat insulators, so that temperature increases in the fasteners, which are noticeable on hot days in the steel, do not lead to a softening of the road 15 road asphalt. After the correct alignment of the two lower-side, longitudinally spaced connecting elements 18, a first concrete wall element is lowered onto the two mutually associated pivot pin 20 of the two lower connecting elements 18. The concrete wall element results in the guide grooves 29 of the respective guide profiles 28 of the two connecting elements, which can thus be easily readjusted during the assembly process, so that a secure bordering of the pivot pin 20 is ensured from below into the tube sleeves 23. For mounting the next concrete wall element then another lower connecting element is positioned at a distance of the element length and then the second concrete wall element 10b lowered from above onto the already coupled with the first concrete wall element 10a connecting element and the other (third lower) connecting element, in which case again the guide profile serves for the frontal guidance of the wall element and ensures a clean bordering of the pivot pin from below. After in this way two concrete wall elements 10a, b are connected to each other at its bottom 24 by a first, lower-side connecting element 18 similar to a link chain, from above the upper-side tab element with the two pivot pin 21 is placed on the open top tube sleeves and Pressed down so that the U-profile iron 30, the two concrete wall elements at the end portions 12a, b on the upper side and on the outer side walls 34 overlaps-Depending on the choice of tolerances between the form-fitting interlocking parts is a certain pivoting mobility of the concrete wall elements relative to each other transverse to the longitudinal direction the Verkehrsleitwand possible, which is limited, however, at best to a few angular degrees, so that even with a lateral impact of a vehicle on the concrete wall this can not buckle to any significant extent.

The in the Figures 8-10 illustrated embodiment of traffic barrier according to the invention differs from the version described above essentially in the design or arrangement of the wall elements positively locking together fasteners or serving for this purpose locking elements on the connectors and the adapted thereto Riegelelementaufnahmen on the wall elements. In the second embodiment, the concrete wall elements 10 a, b at their frontal joints 12 a, b provided with a rolled steel profile (U-profile) head pieces 35 which are each open to the front side 12 and thus a horizontal section U-shaped Form guide groove 37.

The head pieces 35 made of U-section steel are cast at the front ends of the wall elements 10 in the manufacture of the wall elements to the concrete and additionally connected with heavy duty anchors fixed to the wall elements. In the wall elements according to the second embodiment, U-profiles 36 are also provided at the top and bottom for reinforcement and reinforcement, which are cast in the manufacture of the wall elements in the concrete and are additionally secured to transverse bores 38 by means of screwed through bolts. In addition, even reinforcing bars 39 ( Fig. 8 ), which extend between the lower and upper profile rails 36 and, if necessary, are welded to these in order to further increase the strength of the wall elements.

The for connecting the concrete wall elements 10 a, b used for use wall connector 13 consists essentially of a two wall elements under cross-connecting element 18 with a bottom plate 26, on the upper side two extending in the longitudinal direction locking springs 40 are welded from steel. Between the two locking springs in the joint area between the wall elements in turn an upwardly disposed guide profile 28 is provided, which consists in this embodiment of the invention of a square hollow profile whose dimensions are chosen so that it with a slight play in the two guide grooves 37 at the front U-profiles 35 of the wall elements can border.

Similarly, on the undersides 24 of the wall elements 10 locking grooves 41 are formed between each two mutually parallel in the wall longitudinal direction boundary strips 42, adapted to the height and width of the latch springs cross-section, so that there is a positive locking of the two wall elements transverse to their longitudinal direction comes when they are lowered when creating the traffic barrier on the connecting element, in which case the locking springs in the associated locking grooves from below and engages the rectangular in cross-section guide profile in the guide grooves of both the one and the other wall element.

Also in this embodiment, the bottom plate 26 of the connecting element 18 is provided on its underside with elastic, heat-insulating compensating elements 34, as in connection with the in Fig. 1 illustrated, generic traffic control wall has already been described. The bottom plate protrudes laterally clearly over the side walls of the wall elements, so that the Verkehrsleitwand despite the small width of its wall elements has a sufficiently wide footprint and therefore not overturn easily even in the case of a vehicle approaching them.

The inventive, particularly advantageous combination of wall elements made of (reinforced) concrete and fasteners, which consist of steel, thus makes it possible to provide them at the same time with sufficiently wide contact surfaces or floor plates because of the high strength of the steel connecting elements, so that the wall elements themselves over their entire height comparatively narrow and thus can be easily configured. With the invention, it is possible, due to the relatively low weight of the concrete wall elements per unit length (specific length weight) to produce significantly longer concrete wall elements or to transport at a given load capacity of a truck, a larger, mountable length of a concrete guide simultaneously, as was possible in previously known concrete wall elements ,

Claims (17)

1. Traffic-directing wall (11) having concrete-wall elements (10) lined up in a row one beside the other and having wall connectors (13) which connect the wall elements to one another in the region of their end joints (12), wherein the wall connectors (13) each have at least one connecting element (18) which engages beneath the adjacent concrete-wall elements (10) at the end regions thereof and has at least one locking element (20; 40) which locks the wall elements (10) to one another in a form-fitting manner on the underside (24) thereof transversely to the longitudinal direction of the traffic-directing wall, characterized in that the locking element comprises at least one locking tongue (40) which extends in the longitudinal direction of the wall elements, projects up a little way from the connecting element (18) and is incorporated in locking grooves (41) formed on the underside of the wall elements (10).
2. Traffic-directing wall (11) having concrete-wall elements (10) lined up in a row one beside the other and having wall connectors (13) which connect the wall elements to one another in the region of their end joints (12), wherein the wall connectors (13) each have at least one connecting element (18) which engages beneath the adjacent concrete-wall elements (10) at the end regions thereof and has at least one locking element (20; 40) which locks the wall elements (10) to one another in a form-fitting manner on the underside (24) thereof transversely to the longitudinal direction of the traffic-directing wall, characterized in that the at least one locking element is configured in the form of a cross-sectionally U-shaped guide rail which is open in the upward direction and into which the wall elements can be inserted from above.
3. Traffic-directing wall according to Claim 1, characterized in that the locking grooves (41) are formed by U-shaped profile strips which are arranged on the underside of the wall elements (10) and are open in the downward direction.
4. Traffic-directing wall according to Claim 1, characterized in that the locking grooves (41) are formed by two boundary strips (42) which are arranged parallel to one another on the underside of the wall elements (10) and form the locking grooves between them.
5. Traffic-directing wall according to one of Claims 1 to 4, characterized in that the connecting element (18) has a base plate (26) which projects beyond the wall surfaces of the wall elements transversely to the longitudinal direction (17) of the wall.
6. Traffic-directing wall according to Claim 5, characterized in that the base plate (26) is provided on its underside, at least in certain surface areas, with an elastic and/or insulating underlying surface (34).
7. Traffic-directing wall according to Claim 4 or 5, characterized in that the base plate (26) is welded to the at least one locking element (20; 40).
8. Traffic-directing wall according to one of Claims 1 to 6, characterized in that the wall elements (10) have a cross section which is essentially constant over their height (h).
9. Traffic-directing wall according to one of Claims 1 to 7, characterized in that the connecting element (18) on the underside and/or the link-plate element (19) on the top side are/is provided with a guide element (28) which interacts in a form-fitting manner with the ends (12) of the wall elements (10).
10. Traffic-directing wall according to Claim 9, characterized in that the guide element (28) essentially comprises a guide profile, in particular a square hollow profile, a U-shaped profile or I-shaped profile, which projects up from the base plate (26).
11. Traffic-directing wall according to Claim 9, characterized in that the guide element (28) essentially comprises a guide profile which extends upwards from the base plate (26) and/or downwards from the link-plate element (19) on the top side and is incorporated in a tongue-like manner in a channel formed by two guide grooves (37) in the end sides of the wall elements (10).
12. Traffic-directing wall according to Claim 9 or 10, characterized in that the wall elements (10) can be arrested on the guide profile (52) for example by means of bolts.
13. Traffic-directing wall according to one of Claims 1 to 11, characterized in that the link-plate element (19) on the top side has an approximately U-shaped cross section (33) which engages over the wall elements (10), the downwardly projecting side legs of the U-shaped link-plate-element profile (33) being positioned against the lateral outer surfaces of the wall elements (10).
14. Traffic-directing wall according to one of Claims 1 to 12, characterized in that the wall connectors (13) essentially consist of steel.
15. Traffic-directing wall according to one of Claims 1 to 13, characterized in that the wall elements (10) essentially consist of reinforced concrete.
16. Traffic-directing wall according to one of Claims 1 to 14, characterized in that the wall elements (10) have reinforcing inserts (16) running in the longitudinal direction (17) of the wall and/or parallel to the wall-element end sides.
17. Traffic-directing wall according to one of Claims 1 to 15, characterized in that the wall elements (10) are reinforced by steel-profile rails (36) on their top sides and/or undersides.

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