Load Tables For Pultruded Grating

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examples of uniform load and concentrated line load





 

 

 

 

Load Table: IG6010 - 1” I-BAR SPACED 1.5” ON CENTER

SPAN
INCHES		   LOAD IN LBS - DEFLECTION IN INCHES SAFE LOAD
  50 100 150 200 250 500 1000 2000 LBS
12 ΔU <0.01 <0.01 <0.01 <0.01 <0.01 0.01 0.02 0.05 10089
ΔC <0.01 <0.01 <0.01 0.01 0.01 0.02 0.04 0.08 5044
18 ΔU <0.01 <0.01 0.01 0.02 0.02 0.05 0.09 0.19 4805
ΔC <0.01 0.01 0.02 0.02 0.03 0.05 0.10   3605
24 ΔU 0.01 0.03 0.04 0.05 0.07 0.13     2813
ΔC 0.01 0.02 0.03 0.04 0.05 0.10 0.21   2813
30 ΔU 0.03 0.06 0.09 0.12 0.15       1800
ΔC 0.02 0.04 0.06 0.08 0.10 0.19 0.39   2250
36 ΔU 0.06 0.12 0.18 0.24 0.31       1250
ΔC 0.03 0.07 0.10 0.13 0.16 0.33     1875
42 ΔU 0.11 0.22 0.33 0.44         915
ΔC 0.05 0.10 0.15 0.20 0.25       1600
48 ΔU 0.19 0.37             697
ΔC 0.07 0.15 0.22 0.30 0.37       1394
54 ΔU 0.30               549
ΔC 0.11 0.21 0.32 0.42         1236

IG6010 I-Bar Specifications


Specifications
60% Open Area
A = 2.496 in2/ft of width
S = 0.656 in3/ft of width
I = 0.326 in4/ft of width
Approx. Wt. = 2.39 lbs/sq.ft

 

Load Table: IG6015 - 1.5” I-BAR SPACED 1.5” ON CENTER

SPAN
INCHES		   LOAD IN LBS - DEFLECTION IN INCHES SAFE LOAD
  50 100 150 200 250 500 1000 2000 LBS
12 ΔU <0.01 <0.01 <0.01 <0.01 <0.01 0.01 0.01 0.02 17073
ΔC <0.01 <0.01 <0.01 <0.01 <0.01 0.01 0.02 0.04 8536
18 ΔU <0.01 <0.01 0.01 0.01 0.01 0.02 0.04 0.08 7588
ΔC <0.01 <0.01 0.01 0.01 0.01 0.02 0.04 0.08 5691
24 ΔU 0.01 0.01 0.02 0.02 0.03 0.05 0.10 0.21 4268
ΔC <0.01 0.01 0.01 0.02 0.02 0.04 0.08 0.17 4268
30 ΔU 0.01 0.02 0.03 0.05 0.06 0.12 0.23   2690
ΔC 0.01 0.01 0.02 0.03 0.04 0.07 0.15 0.30 3363
36 ΔU 0.02 0.05 0.07 0.03 0.11 0.23     1839
ΔC 0.01 0.02 0.04 0.09 0.06 0.12 0.24   2760
42 ΔU 0.04 0.08 0.12 0.17 0.21 0.41     1320
ΔC 0.02 0.04 0.06 0.08 0.09 0.19 0.38   2310
48 ΔU 0.07 0.14 0.21 0.28 0.35       986
ΔC 0.03 0.06 0.08 0.11 0.14 0.28     1972
54 ΔU 0.11 0.22 0.34 0.45         754
ΔC 0.04 0.06 0.12 0.16 0.20 0.40     1696
60 ΔU 0.17 0.34             590
ΔC 0.05 0.11 0.16 0.22         1474
66 ΔU 0.25 0.50             470
ΔC 0.07 0.15 0.22 0.29         1293

IG6015 I-Bar Specifications


Specifications
60% Open Area
A = 3.136 in2/ft of width
S = 1.239 in3/ft of width
I = 0.928 in4/ft of width
Approx. Wt. = 2.95 lbs/sq.ft

 

Load Table: TG5020 - 2” T - BAR SPACED 2.0” ON CENTER

SPAN
INCHES		   LOAD IN LBS - DEFLECTION IN INCHES SAFE LOAD
  50 100 150 200 250 500 1000 2000 LBS
12 ΔU <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.01 0.01 10993
ΔC <0.01 <0.01 <0.01 <0.01 <0.01 0.01 0.02 0.02 5496
18 ΔU <0.01 <0.01 0.00 0.01 0.01 0.01 0.03 0.03 7310
ΔC <0.01 <0.01 <0.01 0.01 0.01 0.01 0.03 0.04 5496
24 ΔU <0.01 0.01 0.01 0.01 0.02 0.03 0.07 0.11 5496
ΔC <0.01 <0.01 0.01 0.01 0.01 0.03 0.05 0.06 5496
30 ΔU 0.01 0.01 0.02 0.03 0.04 0.07 0.14 0.25 3517
ΔC <0.01 0.01 0.01 0.02 0.02 0.05 0.09 0.16 4398
36 ΔU 0.01 0.03 0.04 0.06 0.07 0.14 0.28 0.52 2443
ΔC 0.01 0.01 0.02 0.03 0.04 0.07 0.15 0.27 3665
42 ΔU 0.02 0.05 0.07 0.10 0.12 0.25     1795
ΔC 0.01 0.02 0.03 0.05 0.06 0.11 0.23 0.44 3141
48 ΔU 0.04 0.08 0.12 0.17 0.21 0.41     1374
ΔC 0.02 0.03 0.05 0.07 0.08 0.17 0.33 0.63 2749
54 ΔU 0.06 0.13 0.19 0.26 0.32       1086
ΔC 0.02 0.05 0.07 0.09 0.11 0.23 0.46   2443
60 ΔU 0.10 0.20 0.29 0.39 0.49       880
ΔC 0.03 0.06 0.09 0.13 0.16 0.31     2199
66 ΔU 0.14 0.29 0.43           727
ΔC 0.04 0.08 0.12 0.17 0.21 0.42     1998
72 ΔU 0.20 0.40             610
ΔC 0.05 0.11 0.16 0.22 0.27       1832
78 ΔU 0.28               520
ΔC 0.07 0.14 0.20 0.27 0.34       1692
84 ΔU 0.37               449
ΔC 0.09 0.17 0.26 0.34 0.43       1570

TG5020 T-Bar Specifications

Specifications
50% Open Area
A = 3.253 in2/ft of width
ST = 1.906 in3/ft of width
SE= 1.496 in3/ft of width
I = 1.676 in4/ft of width
Approx. Wt. = 3.38 lbs/sq.ft

Load Table Notes

  • The designer should not exceed the recommended safe load at any time. The safe load represents a 2:1 factor of safety.
  • Walking loads, typically 50 PSF is recommended for pedestrian traffic. Deflections for worker comfort are typically limited to 3/8in or SPAN divided by 120 under full loads. For a more rigid feel under full loads, limit deflection to 1/4in or SPAN divided by 200.
  • The allowable loads are for static conditions at ambient temperatures. Allowable loads for impact or dynamic loads should be a maximum of 1/2 the value shown. Long term loads will likely result in added deflection due to creep in the material and will also require higher safety factors to ensure acceptable performance.