EP2636796A1 - Support structure of a noise barrier - Google Patents

Abstract

The structure (1) has disc-shaped stand parts (5) provided on an end face that is provided with lateral recesses. Receptacles are formed at top and bottom parts of the end face for connecting spacer elements (3a, 3b) i.e. spacer boards. The spacer elements connect the stand parts of adjacent stands (2) and are connected to the stand parts in a longitudinal direction of the spacer elements in a form-fitting manner. Supporting boards (4) are supported in a region of end regions in a longitudinally freely moveable manner in the lateral recess of the stand part on the end regions.

Description

The invention relates to a support structure of a noise protection wall, in particular for a noise barrier for shielding roads, railways and industrial noise sources, with parallel and spaced-apart disc-shaped uprights, wherein the respective stand by several superimposed arranged stator parts is formed, and the disk-shaped stator parts are provided on the front side with recesses for receiving support boards in their end regions, wherein overlap areas of two support boards are formed in the same recess.

Support structures for noise barriers are known from practice in a variety of designs. These support structures can be filled with a variety of materials, so that the support structure and the filling results in a noise barrier, which is well suited for the screening of motorways, railways and industrial noise sources.

A soil-filled support structure of the type mentioned for a noise barrier is from EP 0 286 957 A1 known. This support structure can be placed loosely on a substrate, so that it is not necessary to provide a special earth foundation on which the support structure is stored and, if necessary, also connected to this.

In this known support structure, at least the surface of the support structure facing the noise source is inclined from its crown to the noise source. The support structure has parallel and spaced stand arranged on each other. Between each adjacent uprights support boards, there referred to as plant ribbed boards, arranged obliquely and with their ends at least in the noise source facing areas of the stand in this pluggable. The stands are designed as a disk. According to the position of the plant ribbed boards, the disc has obliquely running slots whose cross-section is at least as great as that of the ends of the planting ribbed boards. The respective plant rib board is provided spaced from its two end with respect to the end cross-sections tapered cross-sectional areas and engage behind the ends of the plant rib boards the disc. The plant ribbed boards are thus connected to the corresponding discs by means of plug connections. The plant ribbed boards serve beside the carrying ones Function for the earth, including the attachment of the discs, without the need for special fasteners between the plant ribbed boards and the discs.

In order to avoid tilting of the supporting structure or the noise protection wall in the longitudinal direction in the case of large wind loads, wind braces are arranged at greater distances in the support structure. They consist of square diagonal bars, with noses at their ends, which are inserted into L-shaped holes which are provided at the top in one pane and at the bottom in the adjacent pane.

Due to the construction described, the structure, possibly also a disassembly of the known support structure designed quite expensive. Since the plant ribbed boards on the one hand serve to connect the uprights, on the other hand are loaded with earth, this results in a complex loading of the support structure in the region of the ends of the plant ribbed boards. Due to the introduction of loads by means of the soil in the plant ribbed boards, these loads may vary depending on the filling and compaction of the earth, there is no defined force from the plant ribbed boards in the stand.

A similar, earth-filling supporting structure of a noise barrier is in the DE 38 16 127 A1 described.

From the DE 85 03 881 U1 is a support structure of a noise barrier known, are stored in the individual parallel spaced stand in a ground foundation. The triangular, self-stable mounted stand have projections on opposite sides, wherein on the respective projection loose two support boards are placed. These are arranged in the longitudinal direction of each other, essentially in shock.

From the DE 20 2011 001 203 U 1 is a noise barrier known. This has a formed of grid mats, with a fillable with noise insulating filling material filling space. On both sides of this filling space, joint-free inner lattice mats are provided, to which, without seams, additional lattice-free outer lattice mats run. By this measure, a joint-free, quasi monolithic appearing noise barrier is created, the outer visible surfaces can be designed with an aesthetically pleasing appearance.

Object of the present invention is to provide a support structure of the type mentioned in such a way that it is structurally particularly easy to assemble, has a high stability and resilience during filling, with a defined application of force caused by the filling load should be ensured in the support structure.

The object is achieved in a support structure of the type mentioned in that the respective stator part frontally and downwardly at least one receptacle for connecting to at least one spacer element, wherein the spacer element stator parts adjacent stator connects and positively connected in the longitudinal direction of the spacer element with these post parts , And each support board is mounted, at least in the region of one end in the longitudinal direction freely displaceable in this end receiving recess of the stator part.

In the support structure according to the invention thus the connection of the stator takes place by means of the spacer elements, whereby the support structure receives its basic stability due to the interaction of the spacer elements with the uprights or stand parts. The support boards, however, serve to receive the filling material. About the support boards can not be transferred to adjacent stand securely connecting force, because the respective support board freely displaceable, at least in the region of one end in the longitudinal direction, thus is loosely stored in this recess receiving recess of the stator.

Due to the inventive design of the support structure, this can be easily constructed. To accomplish the inherent stability of the support structure, it is only necessary to build the arrangement of uprights and spacers. The spacer elements are arranged in particular in central regions of the support structure, thus not in those areas of the support structure, which face the noise sources, or not in those areas of the stand, the front side, are arranged laterally. This arrangement of the spacer elements with respect to the stand makes it possible to begin with a filling of the support structure in the central region before mounting the support boards. Finally, the support boards are inserted into the recesses of the stand or stator parts and then it can be completely filled the support structure, thus also in the field of support boards or between each superposed support boards.

The arrangement of the spacer elements in central regions of the support structure also has the advantage that these are the form-fitting with the stator parts inducing components positioned outside of relevant thermal influences. These spacers are not subject to strong warming by the sun or cooling by frost. Consequently, these spacers are not subject to appreciable changes in length, so that a tension of the support structure is excluded in the connection region of the stator parts and spacer elements.

The inventive design of the support structure allows a particularly good, in particular high compression and beyond defined compression of the filling material, in particular of the bulk material in the support structure. This ensures that the support structure not only before filling, but also after filling, thus the noise protection wall as a whole, has a high stability and resilience.

The support structure, thus the stator parts, the support boards and the spacer elements is or are preferably made of plastic, in particular recycled plastic. This makes it possible to produce the individual parts of the support structure in the pressing process, with largely arbitrary shape.

From the aspect of simplifying the design of the individual parts of the support structure and thus simplifying the production of the individual parts, it is considered particularly advantageous if that support board has a constant cross section over its length. The support board thus has over its length a constant cross-sectional shape and constant cross-sectional area. Accordingly, each support board is in the region of both opposite ends in the longitudinal direction freely displaceable, so loose, in the receiving end of this recess of the stator part.

Since the respectively associated two support boards overlap in the region of the stator part, the respective stator part or the respective stator can have a relatively small wall thickness. Sufficient overlap ensures that even if adjacent stands should move to each other, no support board gets out of contact with the stand part.

It is thus considered to be particularly advantageous if each support board in the region of its two ends in the longitudinal direction is mounted freely displaceable in the recesses receiving these ends of the stator parts.

The support boards can be produced particularly simply if they have a rectangular cross section. The support boards can be easily manufactured as extruded parts.

The positive connection of respective spacer element to the two associated stands or the stator parts of these stands, in particular, takes place in that the respective spacer element in the region of its ends has tapered sections for insertion into these associated recesses of the stator parts. This makes it easy to bring about the connection between the spacer element and stanchion parts.

The respective spacer element is designed, for example, so that it is provided only in the region of one of the two longitudinal sides of the spacer element with tapered sections arranged at both ends. Such a spacer is used in particular where the connection between the spacer element and the upper or lower region of the stator part is to be brought about. In principle, it may be indicated that the spacer element not only connects two stator parts with each other, but three stator parts. In this case, the respective spacer element preferably has a third tapered section in the region of half the length of the spacer element on the same longitudinal side of the spacer element. There are thus three tapered portions provided on the same longitudinal side of the spacer element at defined distances, which can be brought into positive connection with the stator parts.

Alternatively, the respective spacer element may be provided in the region of both longitudinal sides of this spacer element with tapered sections arranged symmetrically with respect to a longitudinal axis of the spacer element and at both ends of this spacer element. Such a spacer element is used when adjacent stands are to be connected by means of the spacer element, wherein the spacer element cooperates in the region of the respective end form-fitting manner with the lower end of the upper stator part and the upper end of the lower stator part.

In order to support a third upright or a third upright part in the region of a spacer element, provision may accordingly be made for the respective spacer element to have third tapered sections in the region of half the length of the spacer element on both longitudinal sides of the spacer element. These third sections cooperate with lower portions of the upper post section and upper sections of the post post underneath.

Preferably, spacer elements which are mounted between successive stator parts, formed symmetrically to the longitudinal axis and spacer elements which are mounted in the region of the underside of the stator or the region of the top of the stator, according to a symmetry half of the symmetrically shaped spacer member mounted between the stator parts is, trained. As a result, only two different types of spacers need to be provided to make the connection with the uprights of the support structure. The one spacer element represents one half of the symmetrical with respect to its longitudinal axis designed other spacer element.

It is considered to be particularly advantageous, in particular in view of the small variety of parts of the support structure, when all stator parts are identical. In particular, the respective upright part is preferably designed so that its frontal outer contour is substantially rectangular or trapezoidal. It is particularly advantageous if the stacked parts arranged one above the other intermesh positively. As a result, a stability of the stator parts against slipping each other already created when stacking the stator parts. In particular, superimposed column parts grip each other in such a form-fitting manner that they can only be moved relative to one another with one degree of freedom, so that they can only be inserted into one another. This plug-in direction is, in particular vertically, based on the position of the finished support structure.

Although usually the filled support structure, thus the noise barrier, a noise source is assigned only on one side, it is considered for design, aesthetic and constructive reasons to be particularly advantageous if the respective stator part has the recesses on the opposite lateral end faces, in particular symmetrically a vertical axis of the stator part having the recesses. The support structure thus has not only on the side facing the noise source, but also on the side facing away from the noise source, the support boards.

In order to give the support structure a particularly high stability, it is provided that the respective stand part frontally and downwardly not only each having a receptacle to connect with a spacer element, but each has a plurality of, in particular two receptacles for connection to two spacer elements top and bottom. In particular, the said recordings are arranged in the laterally outer third or in the laterally outer quarter of the stator part. These recordings and the spacer elements engaging in them are thus arranged relatively centrally in the support structure, whereas the support boards are positioned in the outer region of the support structure.

In order to optimally retain filling material by means of the support structure in its outer regions, and to achieve a good noise absorption efficiency, it is provided in particular that the supporting boards, are arranged perpendicular to the uprising these receiving stands, wherein the respective support board is inclined to the vertical and a longitudinal extending outer end face of the support board is disposed at a higher level than a longitudinally extending inner end face of this support board.

The invention thus proposes a support structure which can be filled to form a noise protection wall, wherein this support structure can be formed with a relatively low construction cost. It allows a simple, effective filling, especially with bulk material, further a good compression of the filling material. In the support structure, the interlocking elements between the spacer elements and the upright parts of the uprights constitute the structural components which constitute the stability of the support structure. This connection of the support structure in the region of the uprights and the spacer elements creates a positive connection of spacer elements and uprights or stanchion parts in the longitudinal extent of the spacer elements Under this positive fit quite a certain axial play between the spacer elements and the uprights is understood. The spacer elements and / or the support elements are preferably formed as a continuous casting, wherein in particular by milling out of a certain area of the spacer elements, the positive undercut is formed in the spacer element.

Not only the support board is board-shaped, but preferably also the respective spacer element.

Further features of the invention are set forth in the subclaims, the description of the drawing and the drawing itself, wherein it is noted that all individual features and all combinations of individual features are essential to the invention.

Fig. 1

eine Draufsicht auf die Tragstruktur der Lärmschutzwand, veranschaulicht nur über eine Teillänge der modular zusammensetzbaren Tragstruktur,

Fig. 2

eine Seitenansicht der in Fig. 1 dargestellten Tragstruktur,

Fig. 3

Schnitte durch die in den Fig. 1 und 2 veranschaulichte Tragstruktur gemäß den Linien III-III in Fig. 2,

Fig. 4

eine Frontansicht des bei der Tragstruktur verwendeten Ständerteils,

Fig. 5

eine Ansicht auf die Hauptfläche eines ersten Distanzelements, das bei der Tragstruktur Verwendung findet,

Fig. 6

einen Schnitt durch das Distanzelement gemäß der Linie VI-VI in Fig. 5,

Fig. 7

einen Schnitt durch das Distanzelement gemäß der Linie VII-VII in Fig. 5,

Fig. 8

eine Ansicht auf die Hauptfläche eines zweiten Distanzelements, das bei der Tragstruktur Verwendung findet,

Fig. 9

einen Schnitt durch das Distanzelement gemäß der Linie IX-IX in Fig. 8,

Fig. 10

einen Schnitt durch das Distanzelement gemäß der Linie X-X in Fig. 8,

Fig. 11

eine Ansicht einer Hauptfläche des bei der Tragstruktur Verwendung findenden Tragbrettes,

Fig. 12

einen Schnitt durch das Tragbrett gemäß der Linie XII in Fig. 11.

In the drawing, the invention is illustrated by a preferred embodiment, without being limited thereto. It shows:

Fig. 1

a top view of the support structure of the noise barrier, illustrated only over a partial length of the modular composite support structure,

Fig. 2

a side view of in Fig. 1 illustrated support structure,

Fig. 3

Cuts through in the Fig. 1 and 2 illustrated support structure according to the lines III-III in Fig. 2 .

Fig. 4

a front view of the stator used in the support structure,

Fig. 5

a view of the main surface of a first spacer element, which is used in the support structure,

Fig. 6

a section through the spacer element according to the line VI-VI in Fig. 5 .

Fig. 7

a section through the spacer element according to the line VII-VII in Fig. 5 .

Fig. 8

a view of the main surface of a second spacer element, which is used in the support structure,

Fig. 9

a section through the spacer according to the line IX-IX in Fig. 8 .

Fig. 10

a section through the spacer according to the line XX in Fig. 8 .

Fig. 11

a view of a main surface of the support structure using the support board,

Fig. 12

a section through the supporting board according to the line XII in Fig. 11 ,

The support structure according to the invention can in principle have any length, since it is modular. For this reason is in the Fig. 1 and 2 the support structure 1 is formed only for a portion to which corresponding sections on the left and right connect, which in turn follow corresponding sections left and right.

Illustrated is the support structure 1 for a partial length, wherein the support structure is filled, for example, with earth or other filling material, such as natural stone, natural stone, brick, broken glass, concrete ballast or similar recycled materials.

The filled support structure forms the noise barrier. The noise barrier is used in particular to protect motorways, railways and industrial noise sources.

The support structure has parallel and spaced-apart disk-shaped stator 2, also a plurality of spacer elements 3a, 3b formed as boards for connecting the stator 2 and a plurality of stored in the uprights 2 supporting boards 4. The stator 2 are formed identically and by a plurality of identical, superimposed, positively interlocking stator parts 5 formed.

The respective stator part 5 is in Fig. 4 illustrated. It has, viewed in the direction of the main surface, a substantially rectangular outer contour. Based on the orientation according to Fig. 4 has the plate-shaped stator part 5 formed as extruded body of recycled plastic in the region of the lower end face 6 two mutually spaced recesses 7, wherein the respective recess 7 is closed to the left and right and to the front and rear, thus forming a quasi-groove-shaped receiving space. The upper end face 8 is provided with two conically tapering projections 9. The projections 9 are dimensioned so that they overlap one another in the arrangement of stanchion parts 5 in the two recesses 7, whereby no appreciable game of the two stator parts 5 forward and back is present, but a certain displacement of the stator parts 5 to each other only to the right and left is possible, since the extension of the respective recess 7 to the left and right is greater than the corresponding extension of the projection. 9

Left and right, thus the front side each side of the respective stator part 5 is arranged with three superimposed, inclined to the horizontal recesses 10 provided. Each recess 10 on the respective side of the stator part 5 is bounded by parallel wall sections 11, the wall sections 11 of all the recesses 10 of this side being arranged parallel to one another. Relative to the plane of the drawing sheet, the recesses 10 are arranged at an angle to the horizontal, specifically an angle of 45 ° to the horizontal, wherein the lateral opening of the respective The distance of the wall sections 11 of the same recess 10 is dimensioned slightly larger than twice the thickness of the support board 4, so that the respective recess 10 two support boards 4 in the overlapping ends the support boards 4 can record. The floor 12 is arranged perpendicular to the wall section 11. The base 12 may, for example, also be arranged perpendicular to the end face 6 or 8, with which identical support boards 4 offset in the width direction to each other in the recess 10 are inserted.

In the area of the upper end face 8, the upright part 5 is provided between the respective projection 9 and this facing upper recess 10 with a recess 13 having a rectangular cross section. This intersperses, as well as the recesses 10, the stator part 5 completely in the direction perpendicular to the page level. Accordingly, the lower end face 6 of the stator part 5 is provided with recesses 14. They are formed identically to the recesses 13, so that in the case of superimposed stanchion parts 5, the respective one recess 13 is aligned with the recess 14 located above it, thereby forming a laterally closed opening with a rectangular cross section.

For handling the stator part 5, this has in the region of the upper end face, between the respective recess 13 and the upper recess 10 associated therewith, a through hole 15 into which a hoist can engage.

To accomplish the fixed bond between the uprights 2 and the stator parts 5, which form the stand 2, serve the distance boards. Here are two different types of distance boards use, which are therefore referred to as distance boards or spacers 3a and 3b. The one spacer board 3a is in the Fig. 5 to 7 illustrated. The spacer board 3a is formed as extruded part. It consists of plastic, in particular recycled plastic and has five chambers 17, of which the average is smaller than the other, identical large outer chambers. This spacer board 3a is provided in the region of its opposite ends 16, each with a tapered portion 17, wherein the respective portion 17 is formed by milling on both sides of the spacer board 3a, as shown in particular the representation of FIGS. 5 and 7 can be seen. The respective milled recess in the spacer board 3a thus presents itself as a rectangular recess 18 in the spacer board 3a, which passes through the spacer board 3a in its entirety. In the region of the respective end of the spacer board 3a, the recesses 18 are arranged symmetrically to the longitudinal central axis 19 of the spacer board 3a. Relative to the longitudinal extension of the spacer board 3 a, this is formed symmetrically with respect to its transverse axis 20. Symmetrical to the transverse axis 20, the spacer board 3a additionally recesses 21, which correspond to the recesses 18 in shape and size.

The other type of distance board - distance board 3b - is designed such that two such spacer boards 3b are formed by separating the spacer board 3a along the longitudinal central axis 19. In this respect, reference is made to the above description of the spacer board 3a with regard to the structure of the spacer board 3b.

Fig. 11 illustrates that the support board 4 in length and width and construction corresponds to the spacer board 3a, with the difference that in the support board 4, not the recesses 18 and 21 are milled. The support board 4 thus presents itself as unchanged extruded profile. The opposite ends of the support board 4 are designated by the reference numerals 22.

• Es werden zunächst auf einem Boden 23 ein Paar aus jeweils drei Distanzelementen 3b, somit sechs Distanzelemente 3b, angeordnet. Die jeweils drei Distanzelemente 3b des Paars sind überlappend in deren Längsorientierung angeordnet, wie es auch der Anordnung des Paars von Distanzelementen 3b gemäß der Draufsicht der Tragstruktur 1 gemäß Fig. 1 zu entnehmen ist. Die Distanzelemente 3b des jeweiligen Paars sind jeweils so angeordnet und überlappend positioniert, dass deren Ausnehmungen 18 gemäß Fig. 8 nach oben gerichtet sind und die Ausnehmungen 18 überlappender Distanzelemente 3b miteinander fluchten. Auf diese fluchtenden Ausnehmungen 18 der Distanzelemente 3b des Paars werden zwei Ständerteile 5, parallel zueinander angeordnet aufgesetzt,
• wobei das jeweilige Ständerteil 5 mit seinen beiden Ausnehmungen 14 in die Ausnehmungen 18 der beiden überlappenden Distanzbretter 3b eingreift. Zwischen den beiden Ständerteilen 5 wird ein drittes Ständerteil 5 parallel zu den beiden anderen Ständerteilen 5 positioniert, wobei dieses Ständerteil 5 mit seinen Ausnehmungen 14 in die Ausnehmungen 20 der beiden parallel angeordneten, zentralen Distanzbretter 3b der jeweils aus den drei hintereinander angeordneten Distanzbrettern 3b gebildeten Anordnung eingreift. Es sind somit drei Ständerteile 5, die dem Boden 23 zugewandt sind, senkrecht zu deren jeweiligen Hauptfläche formschlüssig in dem Paar von jeweils drei hintereinander angeordneten Distanzbrettern 3b gehalten. Ein gewisses Spiel der Ständerteile 5 in Axialrichtung der Distanzbretter 3b ist hierbei möglich.

The modular support structure 1 is formed in a modular system. Hereinafter, this will be described for a non-end portion of the support structure 1, as he is in the Fig. 1 and 2 is illustrated. The formation of the end-side range is then clarified:

• First, a pair of three spacer elements 3b, thus six spacer elements 3b, are arranged on a base 23. The respective three spacer elements 3b of the pair are arranged overlapping in their longitudinal orientation, as is the arrangement of the pair of spacer elements 3b according to the plan view of the support structure 1 according to FIG Fig. 1 can be seen. The spacer elements 3b of the respective pair are respectively arranged and overlapping positioned so that their recesses 18 according to Fig. 8 are directed upward and the recesses 18 overlapping spacer elements 3b are aligned. On these aligned recesses 18 of the spacer elements 3b of the pair are two stator parts 5, mounted parallel to each other,
• wherein the respective post member 5 engages with its two recesses 14 in the recesses 18 of the two overlapping spacer boards 3b. Between the two stator parts 5, a third stator part 5 is positioned parallel to the other two stator parts 5, said stator part 5 with its recesses 14 in the recesses 20 of the two arranged in parallel, central distance boards 3b each formed from the three consecutively arranged distance boards 3b arrangement intervenes. There are thus three stator parts 5, which face the bottom 23, held positively perpendicular to their respective major surface in the pair of three spaced-apart spacer boards 3b. A certain play of the stator parts 5 in the axial direction of the spacer boards 3b is possible here.

As described in relation to the spacer boards 3b, six spacer boards 3a according to FIG. 3 are now fitted on top of the three stator parts 5 arranged in parallel in this way Fig. 5 attached, wherein three spacer boards 3a are each arranged overlapping, so that in this way a pair is formed, which are associated with the upper recesses 13 of the respective stator part 5. The distance boards 3a are with their lower recesses 18 and 21 in the upper Recesses inserted 13 of the stator parts. Since only the respective middle spacer board 3a of the pair of spacer boards 3a is supported by means of the three stator parts 5, the respective outer spacer boards 3a of the pair must be supported. This is done by means of further parallel to the stator parts 5 arranged stator 5, with which the support structure 1 can be represented in any length.

In the case of the six spacer boards 3a, which are attached to them in the region of the upper ends of the three stator parts 5, because of the vertical orientation of the spacer boards 3a, their recesses 18 and 21 point upwards, so that in turn three stator parts 5 of the next higher level can be plugged onto them , The stator parts 5 of the next higher level engage with their lower recesses 14 in the upper recesses 18 and 21 of the spacer boards 3a and it also engage the two projections 9 of the respective lower stator 5 in the two recesses 7 of the overlying Ständerils 5 a.

In the manner described, a supporting structure 1 can be formed which has a plurality of, quite a plurality of, superimposed stanchion parts 5, furthermore a multiplicity of juxtaposed uprights 2 which are connected by means of the spacer boards 3a and 3b, respectively. Illustrated in the embodiment according to the Fig. 1 to 3 Stand 2, wherein the respective stand 2 is formed by three stacked parts 5 arranged one above the other.

To stabilize the upper ends of the uppermost stator parts 5 of the adjacent stand 2, the spacer boards 3b are provided, which are positioned according to the arrangement of the spacer boards 3b in the region of the bottom 23 and thus arranged overlapping, but with the orientation of the recesses 18 and 21 after below. In the area of these recesses 18 and 21, the six spacer boards 3b - a pair of each three spacer boards 3b arranged in the longitudinal direction overlapping one another - inserted into the upper recesses 13 of the upper stator parts 5.

It is thus an inherently stable structure formed by the stacked stator parts 5 of the various stands 2 and the stator parts 5 of the juxtaposed stator connecting spacer elements 3a, 3b.

There are then in the recesses 10 of the stator parts 5, the support boards 4 freely movable, thus loosely inserted. Each support board 4 are assigned to three stator parts 5 different stands 2. In the two respective outer stator parts 5, the respective support board 4 is positioned in an overlapping arrangement with another support board 4, as shown in the illustration of Fig. 1 to 3 can be seen. This further support board 4 is mounted in this stator part 5 and in two further, arranged next to the illustrated support structure, not illustrated stands.

Between the stator parts 5 different stands 2, in which the supporting boards 4 are arranged overlapping, the third stator part 5 is arranged in the region of the recess 10 only a support board 4 is positioned and supported there.

The thus completed support structure 11, which is thus also provided with support boards 4 on each side facing away from the support structure 1, is now filled, so that the contents is held in the space formed by the support structure 1, thus located in the central region of the support structure 1 , And also covers the support boards 4 above, as for example for EP 0 286 957 A1 is clarified. This filling material, in particular pourable filling material, is, for example, soil, in particular potting soil or other filling material, such as natural stone, natural rock, brick, broken glass, concrete ballast or a similar recycled material.

Claims (15)

Support structure (1) of a noise protection wall, in particular for a noise protection wall for the screening of motorways, railways and industrial noise sources, with parallel and spaced disc-shaped uprights (2), wherein the respective stator (2) formed by a plurality of stacked parts arranged (5) is, as well as the disc-shaped stator parts (5) end side with recesses (10) for receiving support boards (4) in the end regions (22) are provided, wherein overlapping areas of two support boards (4) in the same recess (10) are formed characterized in that the respective upright part (5) at the top and bottom at least one receptacle (13, 14) for connection to at least one spacer element (3a, 3b), wherein the spacer element (3a, 3b) stator parts (5) of adjacent stand ( 2) connects and positively in the longitudinal direction of the spacer element (3a, 3b) with these post parts (5) verbun is, and each support board (4) at least in the region of one end (22) in the longitudinal direction freely displaceable in this end (22) receiving recess (10) of the stator part (5) is mounted. Support structure according to claim 1, characterized in that each support board (4) in the region of both ends (22) in the longitudinal direction thereof is mounted freely displaceable in the recesses (10) of the stator parts (5) which receive these ends (22). Supporting structure according to claim 1 or 2, characterized in that each supporting board (4) has a constant cross section over its length, in particular has a rectangular cross section. Support structure according to one of claims 1 to 3, characterized in that the respective spacer element (3a, 3b) in the region of its ends (16) has tapered portions (17) for insertion in these associated recesses (13, 14) of the stator parts (5) , Support structure according to claim 4, characterized in that the respective spacer element (3b) is provided in the region of only one of the two longitudinal sides of this spacer element (3b) with tapered sections (17) arranged at both ends. Support structure according to claim 5, characterized in that the respective spacer element (3b) in the region of half the length of the spacer element (3b) on the same longitudinal side of the spacer element (3b), on which the tapered portions (17) are arranged, a third tapered portion ( 21). Support structure according to claim 5 or 6, characterized in that the respective spacer element (3b) with associated uprights (2) in the region of the underside of the stator (2) or the top of the stator (2) is connected. Supporting structure according to one of claims 1 to 4, characterized in that the respective spacer element (3a) in the region of both longitudinal sides of this spacer element (3a) with a symmetrical to a longitudinal axis (19) of the spacer element (3a) and at both ends of this spacer element (3a) arranged tapered Section (17) is provided. Support structure according to claim 8, characterized in that the respective spacer element (3a) in the region of half the length of this spacer element (3a) on both longitudinal sides of this spacer element (3a) has third tapered portions (21). Support structure according to claim 8 or 9, characterized in that the respective spacer element (3a) with associated uprights (2) in the region of the underside of an upper stator member (5) and the upper side of the upper stator part (5) receiving the lower stator part (5) connected is. Supporting structure according to one of claims 1 to 10, characterized in that the spacer elements (3a), which are mounted between successive stator parts (5) are formed symmetrically to the longitudinal axis (19), and spacer elements (3b), in the region of Bottom of the stand (2) or in the region of the top of the stand (2) are mounted, according to a symmetry half of the symmetrically shaped spacer element (3a), which is mounted between the stator parts (5) are formed. Support structure according to one of claims 1 to 11, characterized in that the respective stator part (5) has two receptacles (13, 14) at the top and bottom for connecting two spacer elements (3a, 3b) in the upper and lower region of this stator part (5) , In particular, the respective receptacle (13, 14) in the laterally outer third or in the laterally outer quarter of the stator part (5) is arranged. Support structure according to one of claims 1 to 12, characterized in that all the stator parts (5) are formed identically, in particular the front side have a substantially rectangular or trapezoidal circumference. Supporting structure according to one of claims 1 to 13, characterized in that the respective upright part (5) on the opposite lateral end faces the recesses (10), in particular symmetrically to a vertical axis of the stator part (5) has the recesses (10). Supporting structure according to one of claims 1 to 14, characterized in that the supporting boards (4) are arranged perpendicularly to the uprights (2) receiving these, the respective supporting board (4) being inclined to the vertical and a longitudinally extending outer face of the supporting board (4). 4) is arranged at a higher level than a longitudinally extending inner end face of this support board (4).

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