T 20-50 – T Bearing Bar PROGrate Pultruded Grating

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Product Description Part Number Resin Color Length Location Quantity UOM  

Span (inches)

CONCENTRATED LOAD in lb/ft of width

Max
Load (lb/ft)

Apparent
EI x 106
(lb-in2)

50

100

150

200

250

500

1000

2000

12

0.001

0.002

0.003

0.004

0.005

0.010

0.020

0.040

13302

1.80

18

0.001

0.003

0.004

0.006

0.007

0.015

0.029

0.059

8868

4.15

24

0.002

0.005

0.007

0.009

0.012

0.023

0.047

0.093

6651

6.17

30

0.004

0.008

0.011

0.015

0.019

0.038

0.077

0.153

5321

7.35

36

0.006

0.012

0.018

0.024

0.031

0.061

0.122

0.245

4434

7.95

42

0.009

0.019

0.028

0.037

0.046

0.093

0.186

0.372

3801

8.31

48

0.013

0.027

0.040

0.054

0.067

0.135

0.269

0.539

3326

8.55

54

0.019

0.038

0.057

0.076

0.095

0.190

0.379

2956

8.65

60

0.026

0.051

0.077

0.103

0.129

0.257

0.514

2660

8.75

66

0.034

0.068

0.102

0.136

0.171

0.341

0.682

2419

8.78

72

0.044

0.088

0.133

0.177

0.221

0.442

2217

8.80

Span (inches)

UNIFORM LOAD in lb/ft2

Max
Load (lb/ft2)

Apparent
EI x 106
(lb-in2)

50

100

150

200

250

500

1000

2000

12

0.001

0.001

0.002

0.002

0.003

0.006

0.012

0.025

23936

1.80

18

0.001

0.003

0.004

0.005

0.007

0.014

0.027

0.055

8624

4.15

24

0.003

0.006

0.009

0.012

0.015

0.029

0.058

0.117

6468

6.17

30

0.006

0.012

0.180

0.024

0.030

0.060

0.120

0.239

4242

7.35

36

0.011

0.023

0.034

0.046

0.057

0.115

0.229

0.458

2946

7.95

42

0.020

0.041

0.061

0.081

0.102

0.203

0.407

2153

8.31

48

0.034

0.067

0.101

0.135

0.168

0.337

0.674

1672

8.55

54

0.053

0.107

0.160

0.213

0.267

0.533

1310

8.65

60

0.080

0.161

0.241

0.321

0.402

1062

8.75

66

0.117

0.234

0.352

0.469

0.586

881

8.78

72

0.166

0.331

0.497

0.663

740

8.80

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 3.23 in2 I = 1.58 in4 ST = 1.98 in3 SB = 1.32 in3

6

2″

2″

3.43

1. Tables were developed in accordance with the test method developed by the Fiberglass Grating Manufacturers Council (FGMC) of the American Composites Manufacturers Association (ACMA) for the Fiberglass Grating Standard.
2. The designer should not exceed MAXIMUM RECOMMENDED load at any time. ULTIMATE CAPACITY represents MAX LOAD observed at initial fracture.
3. Walking loads for maintenance traffic are typically a live load of 50 PSF. Deflections for worker comfort are typically limited to 0.375″ (3⁄8″) or SPAN divided by 120 under full live load. For a firmer feel under full live load or a line load 250 lb/ft of width, limit deflections to 0.25″ (1/4″) or SPAN divided by 200.
4. The loads represented are for STATIC LOAD CONDITIONS at ambient temperature. Deflections for impact loads or dynamic loads will MULTIPLY the deflections shown by 2. Long term loads will result in added deflection due to creep in the material and will require higher factors of safety to ensure acceptable performance.
5. Deflections are limited to 0.5″ (1/2″) as recommended by the Fiberglass Grating Manufacturers Council of the American Composites Manufacturers Association.