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Dimensiones de pletinas portantes

 
Bearing Bar Size
Height (h) Thickness (e)
Inches mm Inches mm
1 25 1/8 3
1-1/4 31
1-1/2 38
3/4 19
1 25 3/16 5
1-1/4 31
1-1/2 38
2 50
2-1/4 57
2-1/2 63
2-3/4 69
 
Grating mesh
Bearing Bar Pitch (a) Cross bar pitch (b) Grating Mesh Standard Symbol (ANSI/NAAMM MBG-531)
Inches mm Inches mm
1-3/16 30 4 100 G-1(30-100) W-19-4
2 50 G-2 (30-50) W-19-2
1-1/2 38 4 100 G-1 (38-100) W-24-4
2 50 G2 (38-50) W-24-2

 

Panel Sizes
Width (W) Lenght (L) Availability
Feet (ft) mm Feet (ft) mm
3 910 20 6000 In Stock
10 3000 In Stock
6 1828 By demand
2 610 20 6000 By demand
10 3000 By demand
LOAD TABLE FOR WELDED STEEL GRATING (bearing bar spacing 1-3/16″ or 30 mm) Type W-19

 

ACERO ASTM A36M
F=20.000 psiValues and calculations as per NAAMM MBG 534
"Metal Bar Grating Engineering Desing Manual"
E=29.000.000 psi

Note: 1/4 ” is considered the maximun deflection consistenet with pedestrian comfort, but can be exceeded for other loading conditions at the discretion of the engineer.

Bearing bar size Span in inches
24 30
36
42
48
54
60
66
72
78
84
3/4" x 1/8"U39325217512898
F0,1100,1720,2480,3360,438
C393315262225197
F0,0880,1380,1980,2700,352
3/4" x 3/16"U593380264194148
F0,1110,1730,2490,3390,441
C593475396339297
F0,0880,1380,1990,2710,354
1" x 1/8"U703450313230176139
F0,0830,1300,1870,2540,3320,420
C703563469402352313
F0,0660,1040,1490,2030,2660,336
1" x 3/16"U1.053674468344263208
F0,0830,1290,1860,2540,3310,419
C1.053843702602527468
F0,0660,1040,1490,2030,2650,335
1-1/4" x 1/8"U1.097702487358274217175
F0,0660,1030,1490,2030,2650,3360,413
C1.097877731627548487439
F0,0530,0830,1190,1620,2120,2680,331
1-1/4" x 3/16"U1.6431.052730537411325263
F0,0660,1030,1490,2030,2650,3350,414
C1.6431.3151.096939822730657
F0,0530,0830,1190,1620,2120,2680,331
1-1/2" x 1/8"U1.5801.011702516395312253
F0,0550,0860,1240,1690,2210,2790,3450,418
C1.5801.2641.053903790702632575
F0,0440,0690,0990,1350,1770,2240,2760,334
1-1/2" x 3/16"U2.3701.5171.053774593468379313
F0,0550,0860,1240,1690,2210,2790,3450,417
C2.3701.8961.5801.3541.1851.053948862
F0,0440,0690,0990,1350,1770,2240,2760,334
2" x 3/16"U4.2102.6941.8711.3751.053832674557468
F0,0410,0650,0930,1270,1660,2100,2590,3130,373
C4.2103.3682.8072.4062.1051.8711.6841.5311.403
F0,0330,0520,0740,1010,1320,1680,2070,2500,298
2-1/4" x 3/16"U5.3303.4112.3691.7401.3331.053853705592505
F0,0370,0570,0830,1130,1470,1860,2300,2780,3310,389
C5.3304.2643.5533.0462.6652.3692.1321.9381.7771.640
F0,0290,0460,0660,0900,1180,1490,1840,2230,2650,311
2-1/2" x 3/16"U6.5804.2112.9242.1491.6451.3001.053870731623
F0,0330,0520,0740,1010,1320,1680,2070,2500,2980,350
C6.5805.2644.3873.7603.2902.9242.6322.3932.1932.025
F0,0260,0410,0600,0810,1060,1340,1660,2000,2380,280
2-3/4" x 3/16"U7.9605.0943.5382.5991.9901.5721.2741.053884754650
F0,0300,0470,0680,0920,1200,1520,1880,2280,2710,3180,369
C7.9606.3685.3074.5493.9803.5383.1842.8952.6532.4492.274
F0,0240,0380,0540,0740,0960,1220,1500,1820,2170,2540,295

U:Uniform load (psf)
C: Lineal concentrated load at mid-span perp to bearing bar axis (pfw)
F: Deflection (in)

 

 

LOAD TABLE FOR WELDED STEEL GRATING (bearing bar spacing 1-1/2″ or 38 mm) Type W-24

ACERO ASTM A36M
F=20.000 psiValues and calculations as per NAAMM MBG 534
"Metal Bar Grating Engineering Desing Manual"
E=29.000.000 psi

Note: 1/4 ” is considered the maximun deflection consistenet with pedestrian comfort, but can be exceeded for other loading conditions at the discretion of the engineer.

Bearing bar size  Span in inches
2430
36
42
48
54
60
66
72
78
84
3/4" x 1/8"U31320113910278
F0,1110,1730,2480,3380,441
C313251209179157
F0,0880,1380,1990,2710,355
3/4" x 3/16"U470301209153118
F0,1110,1730,2490,3380,444
C470376313269235
F0,0890,1380,1990,2710,354
1" x 1/8"U557356247182139110
F0,0830,1290,1860,2540,3310,420
C557445371318278247
F0,0060,1040,1490,2030,2650,335
1" x 3/16"U833533370272208165
F0,0830,1290,1860,2530,3310,420
C833667556476417370
F0,0660,1040,1490,2030,2650,335
1-1/4" x 1/8"U867555385283217171139
F0,0660,1030,1490,2020,2650,3340,414
C867693578495433285347
F0,0530,0830,1190,1620,2110,2680,331
1-1/4" x 3/16"U1.303834579426326257209
F0,0660,1040,1490,2030,2650,3350,415
C1.3031.043869745652579521
F0,0530,0830,1190,1620,2120,2680,331
1-1/2"x 1/8"U1.250800556408313247200165
F0,0550,0860,1240,1690,2210,2790,3450,417
C1.2501.000833714625556500455
F0,0440,0690,0990,1350,1770,2240,2760,334
1-1/2" x 3/16"U1.8771.201834613469371300248
F0,0550,0860,1240,1690,2210,2800,3450,417
C1.8771.5011.2511.072938834751682
F0,0440,0690,0990,1350,1770,2240,2760,334
2" x 3/16"U3.3332.1331.4811.088833658533441370
F0,0410,0650,0930,1270,1650,2090,2580,3130,372
C3.3332.6672.2221.9051.6671.4811.3331.2121.111
F0,0330,0520,0740,1010,1320,1680,2070,2500,298
2-1/4" x 3/16"U4.2202.7011.8761.3781.055834675558469400
F0,0370,0570,0830,1130,1470,1860,2300,2780,3310,389
C4.2203.3762.8132.4112.1101.8761.6881.5351.4071.298
F0,0290,0460,0660,0900,1180,1490,1840,2230,2650,311
2-1/2" x 3/16"U5.2103.3342.3161.7011.3031.029834689579493
F0,0330,0520,0750,1010,1330,1680,2070,2500,2980,350
C5.2104.1683.4732.9772.6052.3162.0841.8951.7371.603
F0,0260,0410,0600,0810,1060,1340,1660,2000,2380,280
2-3/4" x 3/16"U6.3034.0342.8012.0581.5761.2451.009833700597515
F0,0300,0470,0680,0920,1200,1520,1880,2270,2710,3180,369
C6.3035.0434.2023.6023.1522.8012.5212.2922.1011.9391.801
F0,0240,0380,0540,0740,0960,1220,1500,1820,2170,2540,295

U:Uniform load (psf)
C: Lineal concentrated load at mid-span perp to bearing bar axis (pfw)
F: Deflection (in)

All Gratings are to be firmly anchored to their supports by postive means.
Saddle clips and fasteners are used for installations where grating is subject to removal (or welding should be avoided).