catalauge(1)
TRANSCRIPT
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Oasis Metal Manufacturing L.L.C is a member of Al shirawi Group of Companies,engaged
in manufacture of Electro forged gratings
Product Range
Electroforged Gratings,Stairtreads,Walkways,Fixing Clips etc.
Standard
OMM Gratings are manufactured strictly in accordance with British Standard BS 4592-1
Raw material as per BS EN 10025, Grade S275 JR.
Finish
1. Self colour
2. Painted
3. Galvanized (As per BS 729)
BINDING BAR
WIDTH
SPAN
CROSS BAR
LOAD BEARING BAR
Categories For Loading
1. Light Duty - 3.0 KN/mm2 (UDL) - Acces limited to one person
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a) Standard Panels (Plain or Serrated)
BINDING BAR
WIDTH
SPAN
CROSS BAR
LOAD BEARING BAR
R
b)Custom Made (Layout)Gratings
R
r
c) Custom made Gratings with Kick Plate (Toe Plate)
KICK PLATE
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d) Stair Treads
ANTI SKID NOSING
END PLATE
Stair Treads are manufactured usually with end plates attached for fixing the tread between stair-
stringers. For safety reasons stair treads are provided with chequered plate nosing are with
"Lion grip "plate.
Grating Applications
Floors, Walk-ways, Trenches, Sumps, Scaffolding, Fencing, Decorative Roofs
Caters to
OMM caters gratings to Refinery, Oil fields, Mining Industries, Cement Industries,Textile Industries, Airports, Railways, Power plants, Construction Industries etc.
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LOAD CHART FOR 41 MM CENTERS
300 450 600 750 900 1050 1200 1350 1500 1650 1800 1950 2100
UDL-KN/m2 70.4 31.29 17.6 9.04 5.23
D - mm 0.720 1.62 2.87 3.6 4.32
UDL-KN/m2 117.33 52.15 29.33 15.06 8.72 5.49
D - mm 0.72 1.62 2.87 3.6 4.32 5.04
UDL-KN/m2 110 48.89 27.5 17.6 10.21 6.43
D - mm 0.57 1.29 2.3 3.59 4.32 5.04
UDL-KN/m2 183.33 81.48 45.83 29.33 17.02 10.72 7.18 5.04D - mm 0.57 1.29 2.3 3.59 4.32 5.04 5.76 6.47
UDL-KN/m2 158.4 70.4 39.6 25.34 17.6 11.12 7.45 5.23
D - mm 0.48 1.08 1.91 2.99 4.31 5.04 5.76 6.48
UDL-KN/m2 264 117.33 66 42.24 29.33 18.53 12.41 8.72 6.35
D - mm 0.48 1.08 1.91 2.99 4.31 5.04 5.76 6.48 7.2
UDL-KN/m2 215.6 95.82 53.9 34.5 23.96 17.6 11.82 8.31 6.05
D - mm 0.41 0.92 1.64 2.56 3.69 5.03 5.76 6.48 7.2
UDL-KN/m2 359.33 159.7 89.83 57.49 39.93 29.33 19.71 13.84 10.09 7.58 5.84
D - mm 0.41 0.92 1.64 2.56 3.69 5.03 5.76 6.48 7.2 7.92 8.64
UDL-KN/m2 281.6 125.16 70.4 45.06 31.29 22.99 17.6 12.4 9.04 6.79 5.23
D - mm 0.36 0.81 1.44 2.24 3.23 4.4 5.74 6.48 7.2 7.92 8.64
UDL-KN/m2 469.33 208.59 117.33 75.09 52.15 38.31 29.33 20.66 15.06 11.32 8.72 6.86 5.23
D - mm 0.36 0.81 1.44 2.24 3.23 4.4 5.74 6.48 7.2 7.92 8.64 9.37 9.6
UDL-KN/m2 733.33 325.93 183.33 117.3 81.48 59.86 45.83 36.21 29.33 22.1 17.02 13.39 10.2
D - mm 0.29 0.65 1.15 1.79 2.58 3.52 4.59 5.81 7.18 7.92 8.64 9.36 9.59
*** Above chart is made considering working stress of 165 N/mm2 which allows for a safety factor of 1.6.
Bearing
Bar Size
(mm)
SPAN IN MM
Max Clear
Span forPedestrain
Loading(mm
20 x 3- .
930 - 4.65
810 - 4.05
20 x 5- .
1100 - 5.50
964 - 4.82
25 x 3- .
1160 - 5.80
1016 - 5.08
25 x 5
- .
1375 - 6.881201 - 6.01
30 x 3- .
1392 - 6.96
1216 - 6.08
30 x 5- .
1650 - 8.25
1442 - 7.21
35 x 3- .
1624 - 8.12
1419 - 7.09
35 x 5- .
1925 - 9.63
1682 - 8.41
50 x 5- .
2540 - 10.00
2295 - 10.00
40 x 3- .
1856 - 9.28
1621 - 8.11
40 x 5- .
2148 - 10.00
1922 - 9.61
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LOAD CHART FOR 30 MM CENTERS
300 450 600 750 900 1050 1200 1350 1500 1650 1800
UDL-KN/m2 96.8 43.02 24.2 12.43 7.19
D - mm 0.730 1.63 2.9 3.64 4.37
UDL-KN/m2 161.33 71.7 40.33 20.71 11.99 7.55 5.06
D - mm 0.73 1.63 2.9 3.64 4.37 5.1 5.83
UDL-KN/m2 151.25 67.22 37.81 24.2 14.05 8.84 5.93
D - mm 0.58 1.31 2.32 3.63 4.37 5.09 5.83UDL-KN/m2 252.08 112.04 63.02 40.33 23.41 14.74 9.88 6.94 5.06
D - mm 0.58 1.31 2.32 3.63 4.37 5.1 5.83 6.56 7.29
UDL-KN/m2 217.8 96.8 54.45 34.85 24.2 15.28 10.24 7.19 5.24
D - mm 0.48 1.09 1.94 3.02 4.36 5.09 5.82 6.55 7.28
UDL-KN/m2 363 161.33 90.75 58.08 40.33 25.47 17.06 11.99 8.74 6.56
D - mm 0.48 1.09 1.94 3.62 4.35 5.1 5.82 6.55 7.28 8.00
UDL-KN/m2 296.45 131.76 74.11 47.43 32.94 24.2 16.26 11.42 8.32 6.25
D - mm 0.41 0.93 1.66 2.59 3.73 5.08 5.82 6.55 7.28 8.00UDL-KN/m2 494.08 219.59 123.52 79.05 54.9 40.33 27.1 19.03 13.87 10.42 8.03
D - mm 0.41 0.93 1.66 2.59 3.73 5.08 5.82 6.55 7.28 8.00 8.74
UDL-KN/m2 387.2 172.09 96.8 61.55 43.02 31.61 24.2 17.05 12.43 9.34 7.19
D - mm 0.36 0.82 1.45 2.27 3.27 4.45 5.81 6.55 7.28 8.01 8.73
UDL-KN/m2 654.33 286.82 161.33 103.3 71.7 52.68 40.33 28.41 20.71 15.56 11.99
D - mm 0.36 0.82 1.45 2.27 3.27 4.45 5.81 6.55 7.28 8.01 8.74
UDL-KN/m2 1008.3 448.15 252.08 161.3 112 82.31 63.02 49.79 40.33 30.39 23.41
D - mm 0.29 0.65 1.16 1.81 2.61 3.56 4.65 5.88 7.26 8.01 8.74
*** Above chart is made considering working stress of 165 N/mm2 which allows for a safety factor of 1.6.
50 x 5
40 x 3
40 x 5
35 x 3
35 x 5
30 x 3
30 x 5
25 x 5
20 x 3
20 x 5
BearingBar Size
(mm)
SPAN IN MM
25 x 3
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1950 2100
6.32
9.47
5.66
9.47
9.43 7.199.47 9.71
18.41 14.04
9 46 9 71
- .
2739 - 10.00
2475 10 00
- .
2039 - 10.00
1793 - 8.97
- .2317 - 10.00
2094 - 10.00
- .
1796 - 8.98
1569 - 7.85- .
2096 - 10.00
1860 - 9.33
- .
1540 - 7.70
1345 - 6.72- .
1825 - 9.151595 - 8.00
- .
1521 - 7.63
1329 - 6.66
- .
1026 - 5.13
897 - 4.48- .
1217 - 6.10
1063 - 5.33
Max Clear
Span for
Pedestrain
Loading(mm)
- .
1283 - 6.41
1121 - 5.60
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LOAD CHART FOR 33 MM CENTERS
300 450 600 750 900 1050 1200 1350 1500 1650 1800 1950 2100
UDL-KN/m2 95.16 42.29 22.82 11.68 6.76
D - mm 0.78 1.76 3 3.75 4.5
UDL-KN/m2 158 70.49 38.03 19.47 11.27 7.1 4.75
D - mm 0.78 1.76 3 3.75 4.5 5.26 6
UDL-KN/m2 148 66.08 37.17 22.82 13.2 8.32 5.57
D - mm 0.62 1.41 2.5 3.75 4.5 5.26 6
UDL-KN/m2 247 110 61.95 38.03 22.01 13.86 9.28 6.52 4.75D - mm 0.62 1.41 2.5 3.75 4.5 5.25 6 6.75 7.5
UDL-KN/m2 214 95.16 53.53 34.26 22.82 14.37 9.63 6.76 4.93
D - mm 0.52 1.17 2.09 3.26 4.5 5.25 6.01 6.75 7.51
UDL-KN/m2 356 158 89.21 57.1 38.03 23.95 16.04 11.27 8.21 6.17
D - mm 0.52 1.17 2.09 3.26 4.5 5.25 6 6.76 7.5 8.25
UDL-KN/m2 291 129 72.86 46.63 32.88 22.82 15.29 10.74 7.83 5.88
D - mm 0.45 1 1.79 2.8 4.09 5.25 6.01 6.76 7.51 8.26
UDL-KN/m2 485 215 121 77.71 53.97 38.03 25.48 17.89 13.04 9.8 7.55 5.94
D - mm 0.45 1 1.78 2.79 4.03 5.25 6.01 6.75 7.5 8.26 9.01 9.76
UDL-KN/m2 380 169 95.16 60.9 42.29 31.07 22.82 16.02 11.68 8.78 6.76 5.32
D - mm 0.39 0.88 1.57 2.45 3.52 4.79 6.01 6.75 7.5 8.26 9.01 9.76
UDL-KN/m2 634 281 158 101 70.44 51.79 38.03 26.71 19.47 14.63 11.27 8.86 6.76
D - mm 0.39 0.88 1.56 2.43 3.52 4.79 6.01 6.76 7.51 8.26 9.01 9.76 10
UDL-KN/m2 991 440 247 158 110 80.92 61.95 48.95 38.03 28.57 22.01 17.31 13.2
D - mm 0.31 0.7 1.25 1.95 2.81 3.83 5.01 6.34 7.51 8.26 9.01 9.76 10
*** Above chart is made considering working stress of 165 N/mm2 which allows for a safety factor of 1.6.
Bearing
Bar Size
(mm)
SPAN IN MM
Max Clear
Span forPedestrain
Loading(mm)
20 x 3- .
995 - 4.98
869 - 4.35
20 x 5- .
1179 - 5.90
1030 - 5.15
25 x 3- .
1244 - 6.22
1086 - 5.43
25 x 5
- .
1474 - 7.371288 - 6.44
30 x 3- .
1492 - 7.46
1304 - 6.52
30 x 5- .
1769 - 8.85
1546 - 7.73
35 x 3- .
1741 - 8.71
1521 - 7.61
35 x 5- .
2048 - 10.00
1803 - 9.02
50 x 5- .
2676 - 10.00
2418 - 10.00
40 x 3- .
1990 - 9.95
1738 - 8.69
40 x 5- .
2264 - 10.00
2046 - 10.00
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