DE7315022U - Trapezoidal profiled sheet metal - Google Patents

Description

"Trapezoidal profiled sheet metal"

The innovation relates to a sheet of metal with several Profiles with a trapezoidal cross-section running parallel to one another at a distance, the webs connecting the upper and lower chords in each case at least one step-shaped Have bead.

Such trapezoidal profiled, for ceilings, roofs or the like., provided sheet metal panels have become known in various designs with regard to the arrangement and massIiehe position of the stiffening seals in the webs of the profiles - with the Known metal sheets, however, have the disadvantage that the load-bearing capacity in the area of the field momenta is significantly lower due to the selected proportions and silicon layers than with the trimming torque.

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The task of the "innovation is to create a trapezoidal profile To improve sheet metal according to the type mentioned in relation to the load-bearing capacity with low wall thickness and in particular to increase in the area of the field moment, with dimensional relationships between upper and lower chord, webs and bead arrangement should be created that give good stiffening and high load-bearing capacity of the profiled sheet metal.

Another task of the innovation is seen in the creation of a favorable relationship between the webs and the upper and lower chord, in particular a stiffening in the upper , ■. and lower corner area of the trapezoidal profile and thus increased load capacity.

According to the innovation, a trapezoidal profiled Sheet metal according to the type mentioned at the beginning, the corner ratio between half the upper flange width and the unstiffened upper one Web area max. 1.8 and min. 1.2; furthermore is according to of the innovation, the corner ratio between half the lower chord width and the unstiffened lower web area is max. ο.8 and min.ο.5.

In a preferred embodiment, each profile web is equipped with two beads provided at a distance from one another, Q the distance between them being greater than the distance between the lower ones The bead to the lower chord and the upper bead to the upper chord is.

Further features of the innovation emerge from the other subclaims.

The scope of protection of the subject of the innovation does not extend only on the characteristics of the individual claims, but also on their combination »

The renewal according to the trapezoidal profiled sheet metal is due to their dimensional design and relative position of the bead or beads in the webs with thin wall thicknesses favorably stiffened

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and similar in load capacity to known ones built-up sheet metal has been increased significantly.

Due to the special arrangement of the bead (beads) in the printing area dee field moments »is achieved that the entire load-bearing capacity of the trapezoidal sheet compared to the designs which do not have such a (according to the innovation) bead arrangement is increased by approx.

The dimensional relationships between the upper chord width half to the upper web area and the lower chord width half to the lower one The web area as well as the arrangement of the bead or beads to the web areas has a sheet metal in the claimed fits with high load-bearing capacity, especially in the upper trapezoidal corner areas, created.

Such proportions cannot be determined theoretically, but have to be carried out in lengthy and costly experiments can be found, so that the sheet metal panels formed according to the proportions and dimensions according to the innovation are almost the best possible Have shape and are almost ideal in terms of load-bearing capacity.

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The drawings also show examples of the innovation. Show it :

1 shows an end view of a sheet metal sheet having four parallel trapezoidal profiles at a distance from one another}

2 shows a cross section of half a profile of the sheet metal with one arranged in the web step-shaped stiffening bead,

Fig. 3 is a cross section of half a profile in

further design with a stepped reinforcement bead arranged in the web,

Fig. 4 shows a cross section of a profile with two each Step-shaped reinforcing beads arranged in the two webs.

A sheet metal sheet according to the invention, in particular for ceilings, roofs or the like, has several parallel trapezoidal profiles Io or 11 or 12, which are spaced apart from one another and run in parallel; Each profile lo, ll, 12 with a trapezoidal cross-section is composed of an upper chord 13, a lower chord Xk and two webs 15 connecting these two belts 13, 14, spaced one above the other, with at least one stepped bead in each web 15 16 is provided as a stiffener.

The corner ratio between half the upper flange width —g and the unstiffened upper web area Sj is a maximum of 1.8 and a minimum of 1.2.

Furthermore, the oil behavior is preferably never two half the width of the lower belt and unstiffened lower web area S ₂ max. ο «8 and min. o.5.

The profile Io according to the embodiment naoh Fig. 2 has a height H of 70 mm, an upper belt width OGb of loo mm, a lower total profile width (uPb) which includes two lower belt width halves of 200 mm and an inclination angle Of the webs 15 to the vertical of 15 «8 ° each; a step-shaped Sioke 16 is arranged in the two webs 15 between the two web areas S and S _{2 , which between S 1} and S ₂ occupies a spacing A of 7 mm and an arc length of 9 mm and the upper web area S, opposite the lower web area S ₂ is now set back by B = 5, but both web areas

S ₁ and S ₀ run parallel.

OQ The corner ratio between the upper half of the chord (ψ = - = 50 mm) and the unstiffened upper web area {S ^ * 32.7 mm) is 1.8 and the corner ratio between the lower lower chord half (^ S = 25 mm) and the unstiffened lower web area (S ₂ = 33 mm) is o.75.

The trapezoidal profile 11 in a modified version according to FIG. 3 has a height H of 93 mm, an upper chord width OGb of 123.3 mm, a lower total profile width (gPb) including two lower chord width halves of 210 mm and an angle of inclination <x of the webs 15 each 8.14 ° to the vertical; In the two profile webs l6, a stepped bead 16 extends between the upper and lower web area S. and S ₂ , which occupies a distance A of 7 mm between S. and S ₂ and extends over an arc length of 9 mm as well as the upper, The web area S running parallel to the lower web area Sg is set back by B = 5 mm.

With this trapezoidal profile design, the corner ratio between the upper half of the chord (^ = 61.65 mm) and the unstiffened upper web area (S, = 48.48 mm) and the corner ratio between the lower chord half (S ° - = 25 mm) and the unstiffened lower web area ( S ₂ = 48.47 mm) is 0.51.

The trapaz profile 12 according to FIG. 4 is in its two webs 15 each equipped with two stepped beads 16, whose The distance X from one another is greater than the distance between the upper bead 16 to the upper chord 13 and the distance between the lower bead 16 and the lower chord 14 is formed.

The Sioken distance X is in a ratio of max. I, 9 and at least 1.5 to the two belts 13, 14.

It is preferred to design the bead spacing X to the upper web area S ₁ in a ratio of 1.9 and the ratio between bead spacing X to the lower web area S ₂ of 1.5.

This trapezoidal profile 12 has a height of 116 mm, an upper belt width OQb of 85 mm, a lower, two lower belt width halves including a total profile width (GPb) of 19o mm and an angle of inclination ec of the webs 15 of lo.9 ° to the vertical.

The corner ratio between the upper chord half (ψ- = 42.5 mm) and the unstiffened upper web area (S ₁ = 24.1 mm) is 1.7 and the corner ratio between the lower lower chord half (^ = 20 mm) and the unstiffened lower web area (S ₂ = 32.5 mm) is o.6l.

The distance A between S ₁ and X as well as S ₂ and X is 7 mm each and has a radian of 9 mm and the web spacing area X is opposite the lower web area S ₂ and the upper web area S _{1 is} opposite the web spacing area X set back by the dimension B - 5 mm, the three web areas S ₁ , S ₂ and X running parallel.

In the upper flange 13 of all profile designs, a bead 17 is provided in each case on the cross-sectional plane of symmetry.

The width of the sheet metal can be produced with three or four trapezoidal profiles lo, ll, 12, the wall thickness of the sheet metal is between 0.6 mm and 2 mm.

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The bead 17 after Pig. 2 has a width of 20 mm and a depth of 7 mm, the Sioke 17 according to FIG. 3 has a width of 28 mm and a depth of 14 mm and the bead 17 according to FIG a width of 14 mm and a depth of 7 mm.

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Claims (1)

I # · j Sohutzana claims 1. Metal sheet with several trapezoidal profiles running parallel to each other at a distance, which in their the webs connecting the upper chords and lower chords each have at least one stepped bead, characterized in that the corner ratio between half the upper chord width (^) and the unstiffened upper web area (S ₁ ) is a maximum of 1.8 and at least 1.2. 2. Sheet metal sheet according to claim 1, characterized in that the corner ratio between half the lower flange width (? P) and unstiffened lower web area (S ₂ ) is max. ο.8 and min. o.5. 3. Sheet metal sheet according to claim 1 and 2, characterized in that the TrapezJ? I? ~ (Lo) has a height H = 7o mm, an upper belt width of OGb = loo mm, a lower, two Untergurtbreitenhä] ften (^) including total profile width of gPb = 2oo mm and an angle of inclination oc = 15.8 ° of the two webs (15) to the vertical, with the two O webs (15) between the upper and lower web area (S. and S ₂ ) a stepped bead (16) is arranged and the upper corner ratio between the upper chord half (- % - 50 mm) and the unstiffened upper web area (S, = 32.72 mm) is 1.8 and the lower uo corner ratio between the lower lower half of the chord (^ = 25 mm) and unstiffened lower web area (S ₂ = 33mm) o, is (Fig. 2). M. sheet metal according to claim 1 and 2, characterized in that the trapezoidal profile (11) has a height H = 93 mm, a 7315Q222 & 1Z73 It ·· · --9 ¹ - Upper chord width of OQb = 123 »3 mm, a lower total profile width including two lower chord width halves (^) of gPb = 210 mm and an angle of inclination OC = 8.14 ° of its two webs (15) to the vertical, with the two webs (15 ) a stepped bead (16) is arranged between the upper and lower web area (S ₁ and S ₂ ) and the upper corner ratio between the upper chord half (° p = 61.65 mm) and the unstiffened upper web area (S ₁ = 48.48 mm) 1, 2 and the lower corner ratio between the lower chord half (-2 = 25 mm) and the unstiffened lower web area _r . (S ₂ = 48.47 mm) is 0.51 (Fig. 3). 5. Sheet metal according to claim 1 and 2, characterized in that in the two webs (15) of the trapezoidal profile (12) two step-shaped beads (16) are arranged at a distance from one another, the distance (X) from one another greater than the distance between the lower bead (16) and the lower flange (14) and the distance between the upper bead (16) and the upper flange (13) and the ratio between the bead spacing (X) to the two straps (13,14) mast. 1.9 and at least 1.5 (Fig. 4). _{6. Sheet metal sheet according to claims 1,} 2 and 5, characterized in that the bead spacing (X) to the upper, unstiffened web area (S 1) in a ratio of 1.9 and the bead spacing (X) to the lower, unstiffened web t area (S ₂ ) is in a ratio of 1.5 (Fig. 4). 7 sheet metal according to claims 1, 2, 5 and 6, characterized in that that the trapezoidal profile (12) has a height H - $ 116 mm, an upper belt width of OGb = 85 mm, a lower, two halves of the lower belt width (- «■) including total · \ - Io - 731502220.1273 - Io - profile width of gPb = 19o mm and an angle of inclination OC = Ic, 9 ° of their webs (15) to the vertical, with in each of the two webs (15 * 16) two beads (16) are now arranged at a distance of X = 47.5 from one another and the upper corner ratio between the upper belt half (- | = 42.5 mm) and unstiffened upper web area (S, = 24.1 mm) 1.7 and the lower corner ratio between lower TTf belt half (^ - = 2o mm) and lower unstiffened web area (S ₂ = 32.5 now) o, 6l is (Fig.M). Sheet metal according to claims 1 to 7, characterized in that the bead dimension (A) between the upper and lower web area (S. and Sp) and bead spacing (X) is now equal to 7 mm with a radian dimension of 9 and the parallel web areas (S ^ or S ₁ and X) are now set back relative to the lower web area (S ₂ ) by the dimension P = 5. Sheet metal according to claims 1 to 8, characterized in that in the upper flange (13) of the trapezoidal profile (lo, ll, 12) a bead (17) is arranged on the cross-sectional plane of symmetry, which has a maximum width of 28 mm and a minimum width « of 14 mm as well as a maximum depth of 14 mm and a minimum depth of 7 now has. Io. Metal sheet according to Claims 1 to 9, characterized that it has a wall thickness of 0.6 to 2 mm and in width with three or four profiles (lo, ll, 12) is equipped. 731502220.1Z73