EP0644304A1 - Bearing system - Google Patents

Abstract

An overhead gantry system of the type used to mount traffic signs in constructed from a set of modulator parts. The main sections (5) are produced as metal extrusions that have tapped holes for securing preformed brackets at regular intervals along the length. The brackets have fixing points for the insertion of bracing struts (28) that are located along the length of the structure. Corner brackets are also used for fixing vertical and horizontal units together.

Description

The invention relates to a support system with one or more truss girders, each of which has main supporting parts and supporting elements connecting them, which have rods or are formed by rods. It relates in particular to support systems for traffic and signposting facilities.

Support systems are used in a wide variety of designs, for example in the form of bridges, in particular gantries, that is to say U-shaped supports, the horizontal support accommodating the traffic and / or signposting devices, also in the form of cantilever arms, that is to say upside down L. -shaped supports or in the form of stand arrangements consisting of one or more vertically arranged stands. In the case of a plurality of stands, the respective stand can be designed two-dimensionally and thus the traffic and signage device connecting the stands contribute to stabilizing the support system, while when designing a support system with a stand, the support system must be designed three-dimensionally. The traffic and direction signs can be, for example, traffic lights, traffic signs, standing or hanging traffic signs, traffic control devices that can be changed in information content, vehicle detection systems, etc. Vehicle detection systems are understood to mean, for example, those which serve the speeds of the vehicles, the distances of vehicles traveling in succession or the detection of vehicles for the purpose of collecting road user fees.

Such support systems are predominantly built as hollow box structures in steel. Subordinate hollow box constructions are used in aluminum, since with aluminum the welding of the individual components of the hollow box construction is associated with considerable effort. A disadvantage of the known hollow box constructions is that they are hardly or only at great expense accessible to a modular system because they are made according to the specific spatial specifications.

There are also known support systems, in particular for traffic and direction signs, with one or more truss girders, each of which has main supporting parts and supporting elements connecting them, which are formed by rods. The support systems mentioned are made of steel, the rods and the support elements being welded to form the respective truss girders. These also from trusses Support systems formed are therefore not accessible to a modular system. Another disadvantage of these known support systems is the fact that they cannot be partially replaced if damaged, for example as a result of an accident.

In addition, a wide variety of spatial structures are known from practice, which are formed by connecting, in particular plugging together, rods. The structures are used in particular in the area of trade fair construction in order to separate rooms from one another and to be able to attach billboards to them. They are not suitable for absorbing larger loads or moments.

It is an object of the present invention to provide a support system of the type mentioned, which consists of largely standardized components and can be assembled in a modular system.

The object is achieved in a support system of the type mentioned in that the respective main support part is designed as an extruded profile which is formed with at least one guide rail running in the longitudinal direction thereof, which serve to receive complementarily designed ends of the support elements, each support element end fastening means for the fixed Connecting the support element with the associated main support part.

The essential starting point of the present invention is to be seen in designing the support system in a truss construction, the main support parts and the support elements of the truss support not being welded to one another, but being connected to one another via the fastening means, in particular by screwing. This makes it possible to assemble the support system from the individual components in accordance with the requirements of the individual case, whereby standardized starting components can be assumed, for example standardized lengths of the main support components, standardized designs of the support elements, that is to say standardized rod lengths. Provided the length of each Beam exceeds the normalized length of the main support parts, main support parts are to be put together and connected by suitable means, for example using connecting pipes.

Due to the design of the support system according to the invention, it is fundamentally unnecessary to weld individual components of the support system together. This takes into account in particular that the welding of aluminum support systems involves considerable effort and cost and is hardly possible on site. However, the invention does not exclude that individual components of the support system are nevertheless connected to one another by welding, for example connecting elements used in the support system for connecting the individual trusses or plate elements for supporting the support system on the floor.

The main support parts and / or the support elements are preferably made of aluminum or an aluminum alloy, optionally using steel fasteners. The material mentioned ensures sufficient stability of the support system with simple assembly of the support system due to the relatively low weight of the individual components. However, it is also conceivable to carry out the construction as an aluminum-stainless steel combination or as an aluminum steel construction, in particular galvanized steel.

An essential component of the support system according to the invention is the respective main support part, which is designed as an extruded profile and is formed with at least one guide rail running in its longitudinal direction. In principle, this makes it possible to position the support elements at any point in relation to the longitudinal extent of the main support part and to connect them there to the main support part. For safe guiding and holding of the support elements in the main support part, their ends interacting with the guide rail of the main support part are complementary, for example in the case of an undercut guide rail with an undercut area underlying approach.

It is basically sufficient if a truss is provided in the support system according to the invention. This is then designed as a vertical stand which is to be anchored in the ground and which carries the traffic or signpost device. Basically, it would be sufficient if such a truss girder used in the support system is designed two-dimensionally, that is to say with two main support parts arranged at a distance from one another, which are connected by means of the support elements running at a right or acute angle to them and the traffic or signage device, for example is attached to the two main support parts. However, the support system mentioned can also be three-dimensional, that is to say with truss girders formed from more than two main support parts, the main support parts not coming to lie in one plane.

According to another design of the support system, for example, two vertical truss girders can be provided, each of which is designed two-dimensionally and the traffic or signage device is attached to both truss girders and thus gives them the required stability. Of course, each of the two trusses mentioned can also be three-dimensional. In the case of support systems in the manner of bridges which are suitable for absorbing large loads, in particular gantry bridges, three-dimensional truss girders, in particular three truss girders, will generally be used, with neighboring truss girders being arranged at right angles to one another.

According to a particular embodiment of the invention it is provided that the respective main support part has two or three guide rails, adjacent guide rails being arranged at an angle of 90 ° when using three vehicle rails or 45 ° when using three guide rails to one another. Such a design of the main support part makes it possible to arrange the support elements spatially, namely at a right angle or an angle of in each case 45 °. In principle, however, any number of guide rails per main support part and a wide variety of angles are conceivable.

According to an advantageous design, it is provided that the extruded profile is designed as an undercut groove in the region of the respective guide rail, the groove should preferably have an essentially T-shaped cross section. The respective support element can be inserted into the groove, for example, by inserting it into the groove from the open side, or groove extensions are provided, into which the associated support element is inserted and from there moved into the T-shaped cross-sectional area of the guide rail can. In principle, there would also be the possibility of designing the end of the support element in a T-shape and rotating it into the positive position after insertion into the guide rail.

The invention is not limited to the fact that the bars usually used in a truss are directly connected to the respective main support part. A preferred embodiment of the invention provides that the respective support element has a connection element which is mounted in the main support part, and at least one rod, the respective rod end being mounted in the connection element. Such a design of the support element allows several rods to be combined in a connection point or node, which, however, are connected to the connection element while the connection element engages the assigned main support part. The connecting element advantageously also consists of aluminum or an aluminum alloy.

Depending on whether the rods engage the main support part or the connection element, there are different, preferred designs for the connections of the parts. If the respective support element is formed by a rod, the fastening means preferably have a screw and a sleeve with the same internal and external thread, the screw with the screw head being inserted into the groove and the screw bolt in the internal thread of the sleeve is screwed in, and the external thread is screwed into an end threaded section of the stack. If the connection element is to be connected to a main supporting part, it is considered preferred if the connection element has at least one through hole and the fastening means accordingly have a screw and a nut, the screw with the screw head being inserted into the groove and the screw bolt passing through the through hole, and the nut is screwed onto the free end of the screw bolt.

If the respective support element comprises both the connection element and the plurality of rods, it is proposed to provide further fastening means which connect the respective rod end to the connection element. The fasteners have, for example, a screw and a sleeve with the same internal and external threads, the screws with the screw head being inserted into the associated groove of the connecting element and the screw bolts being screwed into the internal thread of the sleeve, and the external thread in an end threaded section of the rod is screwed in. The connection of the rod and the connecting element thus takes place in accordance with the connection of the rod and the main supporting part for the case in which no connecting element is provided. The respective screw head preferably has the shape of a hammer head and the contact area of the associated groove has a design that is complementary to the hammer head. A preferred, structurally particularly simple embodiment provides for the respective rod to be connected to the end element by means of a simple bolt or screw connection. In this case, for example, a head screw with its shaft passes through through holes in the rod end of interest and the connecting element; and a nut is securely screwed onto a threaded portion of the shaft.

In an alternative design, the connection element has two connection bores, the two rods held in these in particular making an angle of at least 90 ° with one another lock in. The possibility of providing a much larger number of bars for connecting the main supporting parts can significantly increase the stability of the truss girders.

The connecting element is preferably designed in the manner of a slide which is inserted into the respective guide rail. A particularly high load-bearing capacity of the support system according to the invention is obtained if the connecting element is positively fixed in the main support part in the longitudinal direction of the associated guide rail. The load-bearing capacity can be improved further in that the connecting element is also braced against the main supporting part perpendicular to the longitudinal direction of the receiving guide rail, with particular consideration being given to prestressing the connecting element onto the rods received by it. This can be achieved, for example, by providing the connecting element with at least one through hole arranged perpendicular to the longitudinal extension of the guide rail, which serves to receive the fastening means designed as a threaded bolt and the threaded bolt penetrates a blind hole in the main supporting part. The connecting element can thus be braced by means of the threaded bolt between the bottom of the blind hole and a section of the main supporting part that engages behind the connecting element, and it is also fixed in the longitudinal direction of the guide rail. Advantageously - in relation to the longitudinal extent of the respective guide rail - the respective rods engage in the central region of the connecting element and the threaded through bores for receiving the threaded bolts are arranged on both sides of the engagement region, a threaded bolt being expediently provided on each side of the connecting region. The support system is installed in this area by first tensioning the respective connection element in the above-described sense in the main support part and then mounting the respective rod having the required length between a pair of connection elements.

The connection of the rods with the respective connection element is preferably carried out via further fastening means which pivotally connect the respective rod end to the connecting element, the respective fastening element having a screw, a bolt or the like which is inserted through bores in the rod end and in the connecting element and secured by means of a nut, a cotter pin or the like is. The bars can thus be arranged at any statically desired angle to the main support part.

According to a special embodiment, the respective rod is formed by a tube and two rod end pieces, one end of the tube being provided with a left-hand thread and the other end being provided with a right-hand thread, and the rod ends which can be screwed into the tube are each provided with a corresponding thread and with a receptacle remote from the thread are provided for connection to the assigned connection element or the assigned main support part. In particular, it is provided that the respective thread-free receptacle of the rod is designed as a fork piece with bores penetrating the two fork legs and the connecting element has a plate-shaped extension with a through hole, a bolt or a screw passing through the holes in the fork part and in the extension.

According to a special design, the extruded profile has a tubular profile section and the profile projections containing the guide rails. In particular, the tubular design of the profile section makes it possible in a simple manner to form each main support part by a plurality of main support part elements having standard lengths, a tubular plug element inserted into adjacent main support part elements connecting them to one another, and securing elements for securing the connections of the plug element and main support part elements are provided.

A preferred development of the invention provides that at least two truss girders arranged at an angle to one another are connected by means of a corner connection, the actual connection being in the area of the two respective ones Main supporting parts of the truss girders forming the corner are made by means of an angle element. Main supporting parts of different truss girders are connected in pairs using angle elements. There is therefore no need for a welded connection in the region of the corners of the respective corner connection, but instead the main supporting parts are connected there via connecting elements in the manner of the angle elements. The angle element is preferably connected to the respective main supporting part by means of separate fastening elements, for example by means of a secured screw connection, a bolt connection, etc. A special design provides in this connection that the respective angle element has at least one receptacle for fastening a rod, the rod also is connected to another angle element or another main supporting part. The respective rod is thus integrated into the support system and stiffens it in the area of the corner connection. It is considered to be particularly advantageous if the respective angle element has a plurality of receptacles for fastening rods, at least one of the rods having its end remote from the angle element being connected to a main supporting part and another of the rods being connected to another angle element by its end remote from the angle element. A further development provides that the respective angle element has several receptacles for fastening the rods in different planes. In particular, an arrangement of the rods in three perpendicular directions x, y and z is intended.

In particular, the design of the respective main support part by means of a plurality of main support part elements makes it possible to form long trusses from standardized components, that is to say not only from standardized main support part elements, but also from standardized bars and possibly required standardized connecting elements and angle elements. The few different components required for the construction of the support system are thus readily available and the support system can be easily preassembled in assemblies by the manufacturer, so that the assemblies only have to be finally assembled on site. In the event of partial damage of the load-bearing system due to external influences, damaged parts can easily be partially replaced with new parts. There is also the option of completely reusing all components of the support system or converting existing support systems to other spans without any problems using the same components.

The invention thus proposes a support system which consists of largely standardized components, with which largely arbitrarily designed structures can be assembled. This allows universal use of the support system, which is used in the case of training as a three-dimensional structure, in particular for cantilever arms and bridges, these terms being understood in a comprehensive manner. When the bridge is used in connection with the regulation and recording of traffic, the bridge is designed as a gantry bridge or also as a toll bridge, that is, it serves the purpose of detecting vehicles passing under the bridge in order to make a determination on this basis a route-related traffic route usage fee. In this sense, the design of the support system according to the invention enables the bridges to be designed so that they can also be walked on. This can be done in a simple manner by designing walkable zones of the bridges from the main supporting parts and the supporting elements connecting them in the truss construction described. The walk-in zones can be created within the framework by arranging the distances between the upper and lower chords of the horizontal framework support at a corresponding distance from one another.

The pivotable articulation of the support elements, in particular the rods on the main support parts, makes it possible to produce the most varied statically desired angles of attack of the rods on the main support parts, with which the constructions can be pushed as desired or pulled apart as desired.

Further features of the invention are shown in the subclaims, the description of the figures and in the figures themselves, it being noted that all individual features and all combinations of individual features are essential to the invention.

Figur 1

eine erste Ausführungsform des erfindungsgemäßen Tragsystems, ausgebildet als Schilderbrücke in Fachwerkbauweise mit räumlichen Fachwerkträgern, gezeigt in einer Frontansicht,

Figur 2

eine Ansicht der Obergurtebene des horizontalen Trägers des in Figur 1 gezeigten Tragsystems,

Figur 3

eine Ansicht der Untergurtebene des horizontalen Trägers des in Figur 1 dargestellten Tragsystems,

Figur 4

ein Schnitt gemäß der Linie IV-IV in Figur 1,

Figur 5

eine Detaildarstellung des Bereiches V in Figur 1 zur Verdeutlichung der bei der Erfindung Verwendung findenden Anschlußelemente,

Figur 6

ein Schnitt gemäß der Linie VI-VI in Figur 1,

Figur 7

ein Schnitt gemäß der Linie VII-VII in Figur 5,

Figur 8

ein Schnitt gemäß der Linie VIII-VIII in Figur 5,

Figur 9

eine zweite Ausführungsform des erfindungsgemäßen Tragsystems, ausgebildet als Schilderbrücke in Fachwerkbauweise mit räumlichen Fachwerkträgern, gezeigt in einer Frontansicht,

Figur 10

eine Draufsicht des in Figur 9 gezeigten Tragsystems,

Figur 11

eine Seitenansicht des in Figur 9 gezeigten Tragsystems,

Figur 12

eine Frontansicht des in Figur 9 gezeigten horizontalen Trägers, für einen Trägerausschnitt verdeutlicht,

Figur 13

einen vergrößerten Ausschnitt des in Figur 12 gezeigten Trägers,

Figur 14

das Gabelstück eines in der Figur 13 gezeigten Stabes, in Blickrichtung der Figur 13 gesehen,

Figur 15

eine Ansicht des Gabelstückes gemäß Pfeil Y in Figur 14,

Figur 16

eine Detaildarstellung des in Figur 13 gezeigten Anschlußelementes, zusammen mit dessen Befestigungsmitteln verdeutlicht,

Figur 17

einen Schnitt senkrecht zur Längsachse des Haupttragteiles mit in das Haupttragteil eingesetztem, gemäß der Linie XVII-XVII gemäß Figur 16 geschnittenem Anschlußelement,

Figur 18

eine Darstellung gemäß Figur 17, wobei das Anschlußelement gemäß der Linie XVIII-XVIII in Figur 16 geschnitten ist,

Figur 19

die in Figur 9 gezeigte Eckverbindung in vergrößertem Maßstab (in einer Frontansicht),

Figur 20

die in Figur 11 gezeigte Eckverbindung in vergrößertem Maßstab (in einer Seitenansicht),

Figur 21

eine Vorderansicht eines im Außenbereich der jeweiligen Eckverbindung Verwendung findenden Winkelelementes,

Figur 22

eine Seitenansicht des in Figur 21 gezeigten Winkelelementes,

Figur 23

eine Vorderansicht des im Innenbereich der jeweiligen Eckverbindung Verwendung findenden Winkelelementes,

Figur 24

eine Seitenansicht des in Figur 23 gezeigten Winkelelememtes,

Figur 25

eine Seitenansicht des horizontalen Trägers mit an diesen angebauten Hilfselementen, die ein Straßenschild aufnehmen,

Figur 26

eine dritte Ausführungsform des erfindungsgemäßen Tragsystems, das durch zwei ebene Fachwerkständer gebildet ist, mit denen ein Verkehrsschild verbunden ist,

Figur 27

eine Ansicht gemäß Pfeil X in Figur 26.

In the figures, the invention is shown schematically using several exemplary embodiments, without being limited to these. It shows:

Figure 1

1 shows a first embodiment of the supporting system according to the invention, designed as a gantry bridge in a truss construction with spatial truss girders, shown in a front view,

Figure 2

2 shows a view of the top chord plane of the horizontal beam of the support system shown in FIG. 1,

Figure 3

2 shows a view of the lower chord plane of the horizontal support of the support system shown in FIG. 1,

Figure 4

2 shows a section along the line IV-IV in FIG. 1,

Figure 5

2 shows a detailed representation of the area V in FIG. 1 to illustrate the connection elements used in the invention,

Figure 6

2 shows a section along the line VI-VI in FIG. 1,

Figure 7

4 shows a section along line VII-VII in FIG. 5,

Figure 8

5 shows a section along the line VIII-VIII in FIG. 5,

Figure 9

2 shows a second embodiment of the support system according to the invention, designed as a gantry bridge in a truss construction with spatial truss girders, shown in a front view,

Figure 10

3 shows a top view of the support system shown in FIG. 9,

Figure 11

3 shows a side view of the support system shown in FIG. 9,

Figure 12

9 shows a front view of the horizontal beam shown in FIG. 9, for a beam cutout,

Figure 13

3 shows an enlarged section of the carrier shown in FIG. 12,

Figure 14

the fork piece of a rod shown in Figure 13, seen in the viewing direction of Figure 13,

Figure 15

a view of the fork piece according to arrow Y in Figure 14,

Figure 16

13 shows a detailed illustration of the connection element shown in FIG. 13, together with its fastening means,

Figure 17

4 shows a section perpendicular to the longitudinal axis of the main support part with the connection element inserted into the main support part and cut according to the line XVII-XVII according to FIG. 16,

Figure 18

17, the connection element being cut along the line XVIII-XVIII in FIG. 16,

Figure 19

the corner connection shown in Figure 9 on an enlarged scale (in a front view),

Figure 20

the corner connection shown in Figure 11 on an enlarged scale (in a side view),

Figure 21

2 shows a front view of an angle element used in the outer area of the respective corner connection,

Figure 22

3 shows a side view of the angle element shown in FIG. 21,

Figure 23

2 shows a front view of the angle element used in the interior of the respective corner connection,

Figure 24

3 shows a side view of the angle element shown in FIG. 23,

Figure 25

2 shows a side view of the horizontal beam with auxiliary elements attached to it, which receive a street sign,

Figure 26

A third embodiment of the support system according to the invention, which is formed by two flat truss stands with which a traffic sign is connected,

Figure 27

a view according to arrow X in Figure 26.

The support system shown in Figure 1 is essentially formed by three truss girders, namely the vertical truss columns 1 and 2 and the horizontal truss bridge 3 connected to them, to which, shown with dashed lines, a shield 4 is connected in a manner not shown which contains the traffic or signpost device, which is also not clearly illustrated.

The two truss columns 1 and 2 as well as the truss bridge 3 are constructed identically in principle, that is to say they have identical main supporting parts 5 extending over their entire length, as well as identical rods 20, 28 and identical connecting elements 27. In the respective foot area, the truss support 1 or 2 has a bearing plate 8 connected to it and the two ends of the truss bridge 3 are provided with a transom support, which likewise comprises a plate 9. The truss bridge 3 can, for example, as shown for the truss column 1, be mounted directly in it, or else, as shown for the truss column 2, via a bearing plate 10 which is connected to the truss column 2.

What is essential for the present invention is the special design of the truss girders represented by the truss supports 1 and 2 and the truss bridge 3. Because the design of the truss supports 1 and 2 and the truss bridge 3 is identical in principle, the following detailed description of the features essential to the invention relates to that of the truss bridge 3, and the explanations also apply to the design of the truss supports 1 and 2.

The truss bridge 3 consists of four main supporting parts 5 spanning a rectangle, each main supporting part 5 being composed of two main supporting part elements 5 'and 5' '. The main supporting parts arranged in the upper chord of the truss bridge 3, as can be seen in particular in FIG. 2, are designated by the reference numerals 5a and 5b, while the main supporting parts arranged in the lower chord, as shown in FIG. 3, are designated by the reference numerals 5c and 5d.

As can be seen in particular from FIGS. 6 and 7, the respective main supporting part 5 is designed as an extruded profile, which has three guide rails running over its entire length 11, 12 and 13 is provided. The respective guide rail is designed as an undercut groove 14, the guide rails 11, 12 and 13 are each arranged at an angle of 45 ° to one another in relation to the adjacent guide rail. The extruded profile has a basically tubular profile section 15, to which the profile lugs 16 containing the guide rails 11 to 13 are connected. In order to be able to form main support parts 5 of standard lengths of any length, connecting tubes 18 are inserted into the pipe openings 17 of the respective profile sections 15 of the main support part elements 5 'and 5''which have standard lengths and thus penetrate adjacent main support part elements 5' and 5 '' of the same main support part in their end regions . Screws 19, which pass through assigned bores in the main supporting part elements 5 'and 5''and threaded bores in the associated connecting tube 18, ensure a secure connection of the main supporting part elements 5' and 5 '' of the respective main supporting part 5.

The main support parts 5 of the truss bridge 3 are positioned relative to one another such that the guide rails 11 and 12 point to the adjacent main support parts 5, while the guide rail 13 is directed towards the main support part 5 arranged diagonally to this main support part 5.

The diagonal connection of the main supporting parts 5 takes place directly by means of a plurality of rods 20 connected to the respective main supporting part 5 of interest, as is shown in FIG. 7 for the connection of such a rod 20 to the assigned main supporting part 5. The rod 20 is designed as a tube which is connected to the main support part 5 in the region of its two ends via fastening means 21. The fastening means comprise a screw 22 and a sleeve 23 with the same internal and external thread. The screw 22, which is provided with a hammer head 24 according to the design in FIG. 7, is inserted with this into the groove 14 assigned to the guide rail 13 and the screw bolt 25 is screwed into the internal thread of the sleeve 23. Furthermore, the respective rod end is provided with an internal thread 26 into which the sleeve 23 with its external thread is screwed in. The formation of the two screws 22 assigned to the rod 20 with the hammer heads 24 and the corresponding design of the grooves 14 assigned to them ensure that the respective screw 24 cannot rotate in the assigned groove 14. The threads in the rod ends are of course to be designed such that when the rod 20 is screwed onto the sleeves 23 assigned to the two rod ends, they are pulled into the rod and the two main supporting parts 5 assigned to the rod are braced against the rod 20. The connection of rod 20 and associated two main supporting parts 5 is secured by means of locking pins 27 '. The arrangement of the bars 20 connecting the diagonal main supporting parts 5 is not shown in FIG. 1 for drawing reasons, but in the illustration in FIG. 4.

The guide rails 11 and 13 serve to accommodate the specially designed connecting element 27, which are only illustrated with respect to the guide rail 11. When connecting adjacent, non-diagonally arranged main support parts 5, rods 28 are thus not directly connected to the associated main support parts 5, but to the connecting elements 27, which in turn are connected to the main support parts 5. As can be seen in particular from the illustration in FIGS. 5 and 7, the respective connection element 27 is designed as a block-like component which has a flat bearing surface 29 and, in relation to its longitudinal extent, in the region of each of its two ends with one extending perpendicular to the bearing surface 29 Through hole 30 is provided. The respective connection element 27 is fastened with the guide rail 11 or 12 via fastening means 41 which comprise two screws 31 with hammer head 32, which are designed in accordance with the screw 22. The screws 31 are inserted into the groove 14 assigned to the guide rail 11 or 12 and the respective screw bolt 33 passes through the assigned through hole 30. A nut 34 is screwed onto the respective screw 31. The more central area of the respective connecting element 27 can additionally be provided with a bore 35, which has a bore 36 subsequently made in the main support part 5 flees; a notch pin 37 penetrates the two bores.

As can be seen in particular from the illustration in FIG. 5, the respective connection element 27 has two undercut grooves 38 and 39 which extend in the width direction of the connection element and which serve to accommodate two rods 28 which form an angle of 90 ° with one another, and for Include the central longitudinal axis 40 of the bore 35 at an angle of 45 °. The undercut grooves 38 and 39 have a cross section corresponding to the cross section of the guide rails 11, 12 and 13, so that the fastening of the rods 28 in the undercut grooves 38 and 39 takes place in accordance with the fastening of the rods 20 in the guide rails 13 of the respective main supporting parts 5 . In this respect, the identical components of the fastening means 21 used for this purpose are identified by the same reference numbers. The attachment of the rods 28 to the connecting element 27 is shown in section in FIG. 8 and reflects the attachment of the rod 20 to the associated main support part 5 shown in the side view in FIG.

The special design of the main support parts 5 as an extruded profile with identically designed guide rails 11, 12 and 13 makes it possible to position the rods 20 or the connecting elements 27 with the associated rods 28 as desired in the longitudinal extension of the guide rails 11, 12 and 13. It can be used to represent any rod spacing, with a fixed rod spacing within the respective connection element 27.

The construction described is essentially designed as an aluminum-stainless steel combination.

In the embodiment described in FIGS. 9 to 25, components which correspond to the embodiment according to FIGS. 1 to 8 are designated with the same reference numbers for the sake of simplicity.

As can be seen from the illustration in FIGS. 9, 10 and 11, the two truss supports are also in this embodiment 1 and 2 and the truss bridge 3 are constructed identically in principle, that is to say they have identical main supporting parts 5, which extend over their entire length, and identical rods 28 and identical connecting elements 27. However, this embodiment differs fundamentally from the embodiment described in FIGS. 1 to 8 in that there are no bars 20 which connect the main supporting parts 5 arranged in a corner and that the two ends of the truss bridge 3 have special corner connections 64 with the truss supports 1 and 2 are connected.

FIG. 12 illustrates both the upper flange 5a and 5b and the lower flange 5c and 5d, respectively, of the connection of two main support part elements 5 'and 5' 'by means of a connecting tube 18 shown in broken lines. The connection between this and the main support part 5' and 5 '' is done using five screws 19.

As can be seen from the illustration in FIGS. 17 and 18, the main supporting part (in contrast to the embodiment according to FIGS. 6 and 7) has two guide rails 11 and 12 running over its entire length, which are designed as an undercut groove 14 and one Take an angle of 90 ° to each other. The connecting elements 27 for receiving the rods 28 are fastened in the guide rails 11 and 12. Because of the further guide rail 13 which is not present in this embodiment, this embodiment is not intended to receive the diagonal rods 20 in accordance with the previously described embodiment. As can additionally be seen from the illustration in FIG. 16, the respective connecting element 27, in contrast to the embodiment according to FIG. 7, has an essentially T-shaped cross section, with the crossbar 45 having play in the direction of the web 46 abutting it in the groove 14 the guide rail 11 or 12 is mounted and the web 46 in the region of the end third of the connecting element 27 has a slight extension in the longitudinal direction of the web, while in the region of the central third of the web 46 this is extended in the manner of a plate and symmetrical to the axis of symmetry 47 of the connecting element 27 has two through holes 48 for connecting to the rods 28. In the two end regions of the connecting element 27, threaded bores 51 penetrate the web 46 and the crossbar 45 of the connecting element 27.

FIGS. 16 to 18 illustrate the type of positioning of the respective connection element 27 in the main support part 5 and its bracing with the main support part 5, which is illustrated there in relation to the guide rail 11: in the longitudinal direction of the guide rail 11, the connection element 27 is inserted with its crossbeam 45, the web 46 passes through the open T-groove. In the alignment of the two threaded bores 51 of the connecting element 27, blind holes 52 are drilled in the groove base of the main supporting part 5 and a threaded bolt 53 is screwed into the respective threaded bore 51 until the front end 54 thereof lies against the bottom of the blind hole 52. By further screwing in this threaded bolt 51 and also the second threaded bolt 51 of the connecting element 27 in question, the latter is clamped in the area of its surface 55 against the section 56 engaging behind the crossbar 45 of the connecting element 27. The threaded bolts 53 thus prevent due to their engagement in the associated blind holes 52 that the connecting element 27 can move in the longitudinal direction of the guide rail 11 and there is also the bracing of the connecting element 27 within the guide rail 11 due to the pressure forces exerted by the threaded bolts 53. In order to be able to rotate the respective threaded bolt 53 in a simple manner, it is provided with a slot, for example, in its externally projecting area. A nut 57 screwed onto the respective threaded bolt 53 in this area optionally bears against the web 46 of the connecting element 27 via a washer 58 and prevents the unintentional loosening of the threaded bolt 53.

It can be seen from the illustration in FIGS. 13 to 15 that each rod 28 is formed by a central tube 28a and by two rod end pieces 28b. One end of the tube 28a is with a left-hand thread and the other end of the tube 28a with provided with a right-hand thread; the rod ends 28b which can be screwed into the tube 28a are each equipped with a corresponding thread. This means that when the rod end pieces 28b are fixed by rotating the tube 28a, the length of the rod 28 in question can be increased or decreased. The respective rod end piece 28b is fork-shaped, the two fork legs 28c passing through aligned bores 28d. The distance between the two fork legs 28c of a rod end piece 28b is slightly larger than the thickness of the connecting element 27 in the area of the web 46. A screw 60 secured by a nut 59 is through the bores 28d in the respective fork piece and the through hole 48 associated therewith in the web 46 inserted and thus represents the connection between the connection element 27 and the respective rod 28. The threaded section of one of the two rod end pieces 28b is illustrated by the reference number 28e, in the present case it is a left-hand thread.

Figures 19 to 24 illustrate the design of the respective corner connection 64. Shown in Figures 19 and 20 is the connection of the truss column 1 with the truss bridge 3, the connection of the truss column 2 with the truss bridge 3 takes place accordingly.

In the area of the corner connection 64, four angle elements 65 and 66 are provided, each angle element connecting two main supporting parts 5. The respective inner angle element 65 serves to connect the main support part 5c arranged in the lower chord of the truss bridge 3 or the main support part 5d arranged behind it in the front view with the main support part 5e of the truss support 1 arranged in the inner belt or the main support part 5f of this truss support arranged behind it. Furthermore, the respective outer angle element 66 serves to connect the main support part 5a located in the upper chord of the truss bridge 3 or the main support part 5b located behind it to the main support part 5g located in the outer chord of the truss support 1 or the main support part 5h located behind it.

As can be seen in particular from the illustration in FIGS. 21 and 22, the outer angular element 66 has two legs 67 and 68 arranged at right angles to one another, the central longitudinal axes of these legs being designated by the reference numerals 69 and 70. Concentric to these axes, the ends of the legs 67 and 68 facing away from one another are provided with cylindrical extension pieces 71 and 72, the outside diameter of which is slightly smaller than the inside diameter of the respectively assigned main support part 5. The respective outer angle element 66 is inserted with the extension piece 71 into the main support part 5a or 5b and with the extension 72 inserted into the main support part 5g or 5h. The connection between the outer angle element 66 and the assigned two main support parts 5 takes place in the area of each extension 71 or 72 by means of two threaded bolts 74 which are arranged through aligned bores 75, which are arranged in the associated end of the respective main support 5 and in the extension 71 or 72 , are inserted, 74 locking nuts 75a being screwed onto the two free threaded sections of the threaded bolts. The respective inner angle element 65 is largely designed in accordance with the outer angle element 66, that is to say that it also has legs 67 and 68 arranged at right angles to one another and cylindrical extension pieces 71 and 72, with secured threaded bolts 74 having a permanent connection of the respective inner angle element 65 ensure the two associated main support parts 5c and 5e or 5d and 5f.

As can also be seen from FIGS. 19 to 24, the inner angle element 65 in the plane spanned by the longitudinal axes 69 and 70 has a flange tab 76 which corresponds to the outer angle element 66 running in the same plane, the top flange 5a or 5b facing the truss bridge 3 and the outer belt 5g or 5h of the truss support 1 running in this plane. The flange tab 76 is provided with three bores 77 which serve to receive three rods 28, the rods 28 being fastened to the flange tab 76 in the manner of attachment to the connecting elements 27, as described for FIGS. 12 to 15. The three with the flange tab 76 connected rods 28 are arranged in the plane spanned by the longitudinal axes 69 and 70, two of the rods 28, which enclose a right angle with one another, directly with connecting elements 27 of the upper chord 5a (or 5b) of the truss bridge 3 or the outer chord 5g (or 5h) of the truss support 1 are connected, while the central rod 28, which extends at an angle of 45 ° to the first-mentioned rods, is connected to a flange tab 78 connected to the outer angle element 66 in the region of its bore 79. The flange tab 78 of the outer angle element 66 is likewise arranged in the plane spanned by the longitudinal axis 69 and 70.

As can be seen in particular from the illustration in FIGS. 22 and 24, the angle elements 65 and 66 have flange tabs 80 and 81 directed at the other main supporting parts 5 at right angles to the flange tabs 76 and 78, each of these flange tabs having at least one bore 82 or 83. The bore 82 on the flange tab 80 of the respective inner angle element 65 serves to receive a rod 28, while the bore 83 on the flange tab 81 of the respective outer angle element 66 serves to receive a further rod 28. As can be seen from the illustration in FIG. 12, the flange tab 81 of the outer angle element 66, which is connected to the rear main support part 5b arranged in the upper chord, is provided with a further bore 84, which serves to connect a rod 28, which is directed diagonally Connects to a connection element 27 which is mounted in the direction of the longitudinal axis 85 (FIG. 19) of the opposite outer main supporting part 5g of the truss support 1.

In the support system described above, the main support parts, the connecting elements and the rods, as well as the angle elements, are made of aluminum or an aluminum alloy. The main supporting parts are designed as extruded profiles and the angle elements as cast or pressed parts.

As can be seen from the illustration in FIG. 25, the Guide rails 11 and 12 not only for receiving the connection elements 27, but also for fastening various support beams 61 of the traffic sign 4. The support beams 61 are welded to the rear of the traffic sign 4. FIG. 25 shows for two of the bearing beams 61 that they are connected to the associated main supporting parts 5 by means of cap screws 62. For this purpose, the respective cap screw 62 is inserted with its head into the groove 14 of the guide rail 11 or 12 and the threaded shaft of the screw passes through a bore (not shown) in the bearing beam 61 and a locking nut.

In the manner of fastening the bearing beams 61, any structure could be attached to the truss structure, making it possible in a simple manner to build the truss in the manner of a walk-in construction with floor elements.

FIGS. 26 and 27 illustrate that the support system according to the invention can also be used to represent quite simple framework support arrangements. The embodiment according to FIG. 26 is a support system which has two truss girders spaced in parallel, of which only one truss girder in the manner of truss support 1 'is shown in the illustration in FIG. 26, while the identically designed truss support located behind it is covered by this. Each truss column 1 'consists of two main support parts 5, which, however, as can be seen from the illustration in FIG. 27, are only provided with a guide rail 13 which extends over the length of the main support part 5. The two main support parts 5 arranged parallel to one another connect a multiplicity of rods 20 arranged parallel to one another, which, as illustrated in FIG. 7 for the rod 20, are connected to the respective main support part 5. Each truss column is thus two-dimensional, the two truss columns are connected by the traffic sign 4, which is connected to the two associated main supporting parts 5 at the dashed point via fastening means (not shown).

Claims (19)

Support system with one or more truss girders, each of which has main supporting parts and supporting elements connecting them, which have bars or are formed by bars, characterized in that the respective main supporting part (5) is designed as an extruded profile which is provided with at least one guide rail running in its longitudinal direction ( 11, 12, 13), which are used to receive complementary ends of the support elements (27, 28, 20), each end of the support element fastening means (41; 53, 21) for firmly connecting the support element (27, 28, 20) with the associated main support part (5). Support system according to claim 1, characterized in that the main support parts (5) and / or the support elements (27, 28, 20) consist essentially of aluminum or an aluminum alloy. Carrying system according to claim 1 or 2, characterized in that the respective main supporting part (5) has two (11, 12) or three guide rails (11, 12, 13), adjacent guide rails (11, 12; 11, 13; 12, 13 ) are arranged at an angle of 90 ° or 45 ° to each other. Carrying system according to one of Claims 1 to 3, characterized in that the respective guide rail (11, 12, 13) is designed as an undercut groove (14) which in particular has a T-shaped cross section. Support system according to one of claims 1 to 4, characterized in that the respective support element (20) is formed by a rod (20), the respective end of which is mounted in the main support part (5). Carrying system according to one of claims 1 to 4, characterized characterized in that the respective support element (27, 28) has a connection element (27) which is mounted in the main support part (5), and a plurality of rods (28), the respective rod end being mounted in the connection element (27). Support system according to claim 6, characterized in that the connecting element (27) is designed in the manner of a slide which is inserted into the guide rail (11, 12, 13). Support system according to one of claims 1 to 7, characterized in that the connecting element (27) is fixed in the main support part (5) in a form-fitting manner in the longitudinal direction of the associated guide rail (11, 12, 13). Support system according to claim 8, characterized in that the connection element (27) is provided with at least one through bore (5) arranged perpendicular to the longitudinal extension of the guide rail (11, 12), which receives the fastening means designed as a threaded bolt (53) and the threaded bolt (53) passes through a blind hole (52) in the main support part (5), the connecting element (27) by means of the threaded bolt (53) between the bottom of the blind hole (52) and a section (56) engaging behind the connecting element (27) ) of the main support part (5) can be clamped and fixed in the longitudinal extent of the guide rail (11, 12, 13). Support system according to one of claims 6 to 9, characterized in that further fastening means (59, 60) are provided which articulate the respective rod end (28b) with the connecting element (27), the respective fastening means being a screw (60), one Has bolts or the like which are inserted through bores (28d, 48) in the rod end (28b) and in the connecting element (27) and secured by means of a nut (59), a cotter pin or the like. Support system according to one of Claims 1 to 10, characterized in that each rod (28) is formed by a tube (28a) and two rod end pieces (28b), one end of the tube being provided with a left-hand thread and the other end being provided with a right-hand thread, and the rod ends (28b) which can be screwed into the tube (28a) are each provided with a corresponding thread and with a non-threaded receptacle for connection to the associated main support part (5) or the associated connection element (27). Carrying system according to claim 11, characterized in that the respective thread-remote receptacle of the rod (28) is designed as a fork piece with bores (28d) penetrating the two fork legs (28c) and the connecting element (27) is a plate-shaped extension (46) with a through bore (48 ), a bolt or screw (60) penetrating the bores of the fork piece and extension (46). Support system according to one of claims 1 to 12, characterized in that the extruded profile has a tubular profile section (15) and the profile projections (16) containing the guide rails (11, 12, 13). Support system according to one of claims 1 to 13, characterized in that each main support part (5) is formed by a plurality of main support part elements (5 ', 5''), a plug element (18) inserted into adjacent main support part elements (5', 5 ''). this connects with each other, and securing elements (19) are provided for securing the connections of the plug element (18) and main supporting part elements (5 ', 5''). Carrying system according to one of Claims 1 to 14, characterized in that at least two truss girders (1, 3; 2, 3) arranged at an angle to one another are connected by means of a corner connection (64), two main supporting parts (5) of the truss girders forming a corner ( 1, 3; 2, 3) are connected to one another by means of an angle element (65, 66). Carrying system according to claim 15, characterized in that the respective angle element (65, 66) has at least one receptacle (76, 80; 78, 81) for fastening a rod (28), the rod (28) being connected to another angle element (65 , 66) or another main supporting part (5). Support system according to claim 15 or 16, characterized in that the respective angular element (65, 66) has a plurality of receptacles (76, 80, 78, 81) for fastening the bars (28) in different planes. Support system according to one of claims 1 to 17, characterized in that it is designed as a bridge, in particular a gantry bridge, toll bridge or the like (1, 2, 3, 4), each truss girder (1, 2, 3) being three-dimensional. Support system according to one of claims 1 to 18, characterized in that it is designed as a sign stand (1 ', 1', 4), the sign (4) representing the connection between two two-dimensional truss girders (1 ', 1').

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