EP2295662A2 - Stand element and system for constructing partition walls - Google Patents

Abstract

The element (10) has flanges (21, 22) arranged at both sides of a central bar (20) and running below at an angle of 90 degree to the bar for accommodating heat and/or sound insulation panels that are made of mineral wool. The flanges accommodate partition elements (30, 31) i.e. gypsum plasterboards. The width (b) of the flanges is in the range of 55-90 mm, where the width is the extension of the respective flange turned away from the central bar. The element is made of unalloyed steel and provided with a zinc coating as a corrosion protection device.

Description

The invention relates to a stand element for the construction of partitions and the like according to the preamble of patent claim 1 and a system for the construction of partitions.

Partitions in lightweight construction allow a simple way, even without elaborate masonry, the design, especially redesign of all types of spaces. For this purpose, special steel stand or stand elements are installed on the desired areas, which serve in particular the inclusion of sound insulation (possibly also thermal insulation panels) and are attached to the outside in particular plasterboard, so as to additional separations z. B. to create between existing masonry. Usually, the gypsum plaster boards are connected as close to their edges as possible with the upright element or the flanges. However, the distance of the fastening means to the respective edge should be chosen so that a tearing of the plate edge is avoided. For this Reason has established in the processing practice, a central arrangement of the abutting edge of two gypsum plaster boards on a supporting flange as standard.

The most vertical stand have different profile cross sections, z. B. U, C, M or Ω profile cross-sections, with a central web and abkragenden flanges. The flange thus extends along the web and extends with its width from the web abkragend. The inner (hollow) space of the stator element, so the profile cross-section, is adapted to absorb insulation material for sound insulation (possibly also thermal insulation), for. B. formed of mineral wool soundproofing panels.

According to DIN standard (DIN 18182) known stands are formed with the above-mentioned profiles with flange widths of 50 or 35 mm or even smaller flange widths.

Due to the lightweight construction special demands are placed on the materials with regard to thermal and in particular with regard to sound insulation. For example, special plasterboard panels and special soundproofing panels are often used to construct partitions. It is also possible, in addition to the partitions attach attachment shells in order to achieve a favorable sound insulation level. In addition, attention must be paid to suitable connection seals in order to avoid sound bridges in the connection areas (eg between the partition and the existing wall).

With the known devices, it is difficult to achieve a high degree of sound insulation of a fully assembled wall.

It is an object of the invention to provide a stand element and a system for the construction of partitions and the like, with which in a simple manner and by simple means good sound insulation of the assembled partition can be achieved.

This object is achieved by a stator element according to claim 1 and by a system according to claim 7.

In particular, the object is achieved by a stator element with a U, C, M or Ω profile cross section from a central web and flanges projecting from the web on both sides in that the flanges have a width (that is the extent of the flange projecting from the web). from 55 to 90 mm. It is also possible, depending on the field of application, to provide unequal flanges in the above-mentioned dimensional range. The uprights can be provided both as wall profiles (eg CW profile) or as ceiling profiles (eg CD profile). In accordance with footnote b of Table 1 of DIN 18 182, non-isosceles flanges here are understood to mean those having a flange width difference of at least twice the sheet thickness.

An essential point of the invention is that by means of the stator element now wide, but still stable flanges are provided for securing the partition wall elements.

Preferably, the flanges have a width of 60 to 75 mm, more preferably of 60, 65 or 70 mm.

This dimensioning of the flanges is based on the finding that, when the fastening means for attaching the plasterboard to the flange or flanges are located as far away as possible from the web (and towards the free flange end of the respective flange), the assembled partition With the stator elements according to the invention shows a much better sound insulation behavior and in particular the sound insulation level is significantly improved, as would be possible with conventional uprights elements. That is, the improved sound insulation in lightweight constructions of the type described above is due to the fact that the flange width is increased and so more room for the arrangement of the fastener remains, which now just further moved away from the web can be attached. Usually, the known flanges have a width of 35 or 50 mm. Here, the fasteners are forced to position in the vicinity of the web, resulting in a less favorable sound insulation effect of the finished wall.

However, it has also been found that with too wide flanges due to a then certain instability of the wide flanges vibrations may occur, which in turn adversely affect the sound insulation level.

In a further preferred embodiment, the gypsum plasterboard in the region of the edge by means of a screw connection as a fastener, can be arranged close to the free end of the flange on the flange, such that in two abutting each other on a respective flange gypsum plasterboard as a joint formed as close to the free Flange end is arranged (the flanges are formed such that usually two plasterboard in each case can be mounted on a flange to each other on a flange and fastened as close to the impact on the flange). There are suitable for this z. B. Drywall screws that can be mounted easily.

Alternatively, the gypsum plaster boards can be attached to the upright profile by nails, staples or adhesives. In the case of adhesive bonding is to implement the invention, a narrow strip of adhesive, which should not be wider than about 1 cm, to install at the same place as a line attachment. Particularly suitable is an adhesive bead. In addition, the adhesive bond with other fasteners, especially screws, can be adapted for the case of fire, to prevent premature failure of the attachment.

The enlarged flange width according to the invention thus makes it possible to fasten the panels near the impact in such a way that the fastening means are as far away as possible from the web of the upright element, as described above, whereby an improved soundproofing effect is achieved.

Furthermore, it can be provided that the upright element is designed with at least one bead running essentially perpendicular to the profile cross section for stiffening the upright element. In the case of a plurality of beads arranged in particular on the two flanges, a mirror-symmetrical arrangement relative to the axis of symmetry of the profile cross section in isosceles profile cross sections is particularly preferred. Furthermore, the flange ends (side facing away from the web) can have beadings or (in the case of ceiling profiles) can be formed with suspension guides.

Preferably, the stand element is designed for the construction of a single stud wall, a double stud wall or a facing shell. In single storey walls, the stand elements are preferably planked on both flanges with plasterboard. Double column walls have z. B. two juxtaposed stator elements, each outer sides are covered with plasterboard. Also intent shells are planked on one side and z. B. arranged in front of an existing wall. The enlarged flanges according to the invention always allow improved soundproofing.

Depending on the size, a complete partition wall has a plurality of stand elements arranged one behind the other, which are arranged as end elements and as intermediate elements for the wall structure. The individual end or intermediate elements for a double stud wall are z. B. formed from two juxtaposed stator elements.

In a further preferred embodiment, the upright element is made of unalloyed steel, preferably with a zinc coating as corrosion protection. This is a stable and durable substructure for mounting the plasterboard is given.

The above object is further achieved with a system for the construction of partitions and the like, comprising at least one upright element as described above, with a web and flanges disposed thereon, at least one Partition wall element, in particular a plasterboard, which can be arranged on at least one flange of the stator element and fastening means for securing the partition wall element to the at least one flange.

The system thus comprises the described stator elements and the partition wall plates, in particular plasterboard panels, which can be arranged thereon by fastening means, preferably via a screw connection. The gypsum plaster boards are mounted near the edge (or in the vicinity of two abutting plates) to the respective flange, due to the widened flange width for the sound insulation of the finished wall cheaper (greater) distance of the fastener to the web of the upright element can be met.

The system may further comprise, in particular, sound insulation panels formed from mineral wool which can be received in the upright member. For this purpose, the configuration of the profile cross-section is suitable. The soundproofing panels can also be designed for thermal insulation.

Depending on requirements, the system may comprise a plurality of uprights elements (wall elements and / or ceiling elements or profiles), so that with the stator elements according to the invention a partition wall can be constructed, which has very good properties in terms of sound insulation.

Further embodiments of the invention will become apparent from the dependent claims.

- Fig. 1

eine Ausführungsform eines erfindungsgemäßen Ständerelements zum Aufbau von Trennwänden in einer Draufsicht;

- Fig. 2

das Ständerelement (bzw. System) gemäß Fig. 1 in einer Seitenansicht, wobei die Darstellung schematisch ist;

- Fig. 3

ein Diagramm zur Darstellung des bewerteten Schalldämm-Maßes eines Trennwandbereichs bei Verwendung eines erfindungsgemäßen Ständer- elements;

- Fig. 4a

ein Diagramm zur Darstellung des bewerteten Schalldämm-Maßes eines Trennwandbereichs bei Verwendung eines weiteren erfindungsgemäßen Ständerelements;

- Fig. 4b

ein Diagramm zur Darstellung des bewerteten Schalldämm-Maßes eines Trennwandbereichs bei Verwendung eines weiteren erfindungsgemäßen Ständerelements;

- Fig. 4c

ein Diagramm zur Darstellung des bewerteten Schalldämm-Maßes eines Trennwandbereichs bei Verwendung eines bekannten Ständerelements.

Hereinafter, embodiments of the invention will be explained in more detail with reference to drawings. Hereby show:

- Fig. 1

an embodiment of a stator element according to the invention for the construction of partitions in a plan view;

- Fig. 2

the stand element (or system) according to Fig. 1 in a side view, wherein the representation is schematic;

- Fig. 3

a diagram for the representation of the weighted sound reduction measure of a partition wall area when using a stator element according to the invention;

- Fig. 4a

a diagram showing the weighted sound reduction measure of a partition wall area when using a further stator element according to the invention;

- Fig. 4b

a diagram showing the weighted sound reduction measure of a partition wall area when using a further stator element according to the invention;

- Fig. 4c

a diagram showing the weighted sound reduction dimension of a partition wall area when using a known stator element.

In the following description, the same reference numerals are used for the same and like parts.

Fig. 1 shows an embodiment of a stator element 10 according to the invention with C-profile cross-section, for the construction of a partition wall or the like, in a plan view. The upright element 10 can be used, for example, as a wall profile (CW) and has a central web 20, which in this embodiment is formed with two beads 23, 24 for stiffening the upright element 10. On the web 20, two flanges 21, 22 are arranged on both sides, approximately at 90 °, so that ultimately the C-shape of the profile is formed. The flange ends have flanges.

The flanges could also abkragen with another angle from the web, so that, for example, results in a trapezoidal profile.

Stand elements are used for the construction of a partition wall or the like, wherein on the stand element partition wall elements or plates can be fastened to finally obtain a complete partition.

According to the invention, it is now provided to design the flanges 21, 22 very broadly (width b, wider than is the case with known upright elements), so that fastening means 40, 41, in particular screws, for fastening the partition wall elements to the flanges 21, 22 as far as possible away from the web 20, so moved away from the web 20, can be attached. This improves the sound insulation of the fully assembled partition. A sound-absorbing effect generating arrangement of the screws would not be possible in known elements due to the narrow flange widths.

In Fig. 2 the stator element 10 (or system 1) according to the invention with a partition wall (cutout) arranged thereon is shown, wherein the partition wall consists of a plurality of plasterboard panels 30, 31. Here is a section of two plasterboard panels are shown, which are arranged in abutment against each other. The illustration is very schematic and is intended only to show the principle of the system 1.

The flange width b is increased compared to known elements, wherein the flanges 21, 22 of the C-profile are formed with 55 to 90 mm, preferably with 60 to 75, particularly preferably with 60, 65 or 70 mm. Schematically, the fasteners 40, 41 shown here z. As screws, with which the gypsum board 30, 31 in the region of their edges, here near the impact, are attached to the one flange 21 (the partition plates are usually always near the edge, preferably at a defined distance from the edge, on the flange attached).

Also on the opposite flange 22 partition panels can be attached. The interior (hollow) space of the stator element 10 is adapted to absorb insulation material for the sound insulation (not shown), for. B. formed of mineral wool soundproofing panels. These can be designed or designed such that they also serve the thermal insulation.

In the Fig. 1 indicated beads 23, 24 are in Fig. 2 for the sake of simplicity not shown.

This in Fig. 2 shown stand element 10 is provided here as a central part of a wall system 1, but can also be arranged on an existing wall. The stator element 10 would then z. B to the existing masonry by means of a connection seal.

Fig. 3 shows by way of example a logarithmic diagram for determining a weighted sound reduction index R _W (in decibels, dB) for a partition wall area, ie for a wall system, when using a stator element 10 according to the invention with CW profile (C-wall profile). Shown is the result of a measurement of the airborne sound insulation, wherein a double metal stud wall with about 70 mm flange width was used. The flanges were double-layered with approximately 12.5 mm thick gypsum plasterboard to finally 10 m ² wall of the test to undergo. Further, a mineral wool insert was used as described above.

To fix the gypsum plaster boards to the flanges, screws were used which are positioned as far away from the bridge as possible. As already described, the plates are usually fastened to the respective flange near the edge. However, care should be taken to ensure that the screws are located only so close to the edges of the plasterboard that tearing of the plates at the attachment points is avoided.

On the ordinate is a sound reduction measure R (in decibels, dB), on the abscissa is a third octave center frequency f (in Hertz, Hz) plotted. The sound reduction measure describes the ability of a component or medium (here the partition wall area) to dampen the sound.

For the measurement, the sound reduction index R for the individual frequencies is measured in thirds intervals and the mean value is formed in each case. The values are entered in the diagram (the curve shows that the sound insulation of the wall system depends on the frequency). The curve thus determined is essentially brought to coincide with a predetermined reference curve according to rules which are not explained in more detail here. Finally, to obtain the weighted sound reduction index R _W , the value obtained by the "shifted reference curve" at 500 Hz is determined. The weighted sound reduction index R _W is corrected by spectrum adjustment values (in this case) C and C _tr . These values take into account the frequency characteristics of different sound sources, with the sound reduction index being reduced by this value. The evaluation method for the weighted sound reduction index R _W just described is a standardized test which is familiar to the person skilled in the art.

mit

b_Flansch:

Breite Flansch in mm,

R_W:

bewertetes Schalldämm-Maß in dB,

C, C_tr:

Spektrum-Anpassungswerte in dB.

In the illustrated diagram results for the wall system, the weighted sound reduction measure $${\mathrm{R}}_{\mathrm{W}}\left(\mathrm{C}\mathrm{;}{\mathrm{C}}_{\mathrm{tr}}\right)\mathrm{=}\mathrm{69}\left(\mathrm{-}\mathrm{3}\mathrm{;}\mathrm{-}\mathrm{10}\right)\mathrm{dB\; at}{\mathrm{b}}_{\mathrm{flange}}\mathrm{=}\mathrm{70}\mathrm{mm}\mathrm{.}$$

With

b _flange:

Wide flange in mm,

R _W:

rated sound reduction in dB,

C, C _tr :

Spectrum adjustment values in dB.

Fig. 4a:

b_Flasch = 70 mm, Rw (C; C_tr) = 50 (-5; -13) dB,

Fig. 4b:

b_Flansch = 60 mm, Rw (C; C_tr) = 49 (-5; -13) dB,

Fig.4c:

b_Flansch = 50 mm, R_W (C; C_tr) = 47 (-5; -13) dB,

mit

b_Flansch:

Breite Flansch in mm,

R_W:

bewertetes Schalldämm-Maß in dB,

C, C_tr:

Spektrum-Anpassungswerte in dB.

A comparison of partition areas with different stator elements under the same measurement conditions is with the Fig. 4a, 4b and 4c shown. In all figures single metal stud walls were tested with single-layer planking, wherein the stator elements each have a CW profile as a cross section. With the Fig. 4a and 4b are the results when using inventive stand elements shown, Fig. 4c shows the measurement results when using a standardized standard stand element. The following weighted soundproofing values R _{W result} under the same test conditions:

Fig. 4a:

b _bottle = 70 mm, Rw (C; C _tr ) = 50 (-5; -13) dB,

Fig. 4b:

b _flange = 60 mm, Rw (C; C _tr ) = 49 (-5; -13) dB,

4c:

b _flange = 50 mm, R _W (C, C _tr ) = 47 (-5, -13) dB,

With

b _flange:

Wide flange in mm,

R _W :

rated sound reduction in dB,

C, C _tr :

Spectrum adjustment values in dB.

The wider flanges according to the invention allow the arrangement of the screws (for securing the partition wall elements to the flanges) moved away from the web, in the vicinity of the free flange ends. The removal of the fastening screws, ie the fastening means, from the web leads to an improved sound insulation of the completely assembled wall, in comparison to arrangements with conventional upright elements and the fastening means thus forcibly arranged closer to the webs.

The wider flanges according to the invention also allow, in deviation from the usual practice of flanschmittigen plate edge impact displacement of the abutting edge eccentrically further moved away from the web, which can be implemented to further improve the Schalldämmmaßes.

LIST OF REFERENCE NUMBERS

1 System for the construction of partitions 10 stand element 20 web 21 flange 22 flange 23 Beading 24 Beading 30 Partition wall element, partition wall plate, gypsum plaster board 31 Partition wall element, partition wall plate, gypsum plaster board 40 Fixing element, screw 41 Fixing element, screw R Soundproofing measure in dB R _W Rated sound reduction in dB C Spectrum adaptation value in dB C _tr Spectrum adaptation value in dB b _flange Width flange in mm f Frequency in Hz

Claims (10)

Stand element (10) for the construction of partitions and the like, with a U, C, M or Ω profile cross-section of a central web (20) and arranged on both sides of the web (20) and at a substantially 90 ° - Angle to the web (20) extending flanges (21, 22),
for the absorption of heat and / or sound insulation panels, in particular of mineral wool,
the flanges (21, 22) being provided for receiving dividing wall elements (30, 31), in particular plasterboard,
characterized in that
the flanges (21, 22) have a width b (which is the extent of the flange projecting from the web) of 55 to 90 mm. Stand element according to claim 1,
characterized in that
the flanges have a width of 60 to 75 mm, particularly preferably of 60, 65 or 70 mm. Stand element according to claim 1 or 2,
characterized in that
the plasterboard in the region of the edge with fixing means (40, 41), near the free end of the flange to the flange (21, 22) can be arranged, such that when two abutment against each other on a flange gypsum plasterboard as close as possible to a joint formed the free end of the flange is arranged. Stand element according to claim 1 to 3,
characterized in that
the fasteners (40, 41) are screws, nails, staples or adhesives. Stand element according to one of the preceding claims,
characterized in that
the upright element (10), preferably the web (20), is formed with at least one beading (23, 24) extending substantially perpendicular to the profile cross section for stiffening. Stand element according to one of the preceding claims,
characterized in that
the stand element (10) is designed for the construction of a single stud wall, a double stud wall or an attachment shell. Stand element according to one of the preceding claims,
characterized in that
the stand element (10) is made of unalloyed steel, preferably with a zinc coating as corrosion protection. System (1) for the construction of partitions and the like, comprising
at least one upright element (10) with a web (20) and flanges (21, 22) arranged thereon according to one of the preceding claims,
at least one partition element (30, 31), in particular a plasterboard, which can be arranged on at least one flange (21, 22) of the upright element (10)
and fixing means (40, 41) for fixing the partition member (30, 31) to the at least one flange (21, 22). System according to claim 8,
characterized in that
this further comprises, in particular made of mineral wool soundproofing plates, which are in the stator element (10) can be accommodated. System according to claim 9,
characterized in that
the sound insulation panels are also designed for thermal insulation.

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