T 15-33 – T Bearing Bar PROGrate Pultruded Grating

1 1/2" Thick | 33% Open
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NOTE: These products are only available by special order. Minimum orders, extended lead times and special-order pricing will apply.

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

0.011

0.021

0.042

8235

1.71

18

0.003

0.005

0.008

0.011

0.013

0.026

0.053

0.106

5490

2.3

24

0.005

0.011

0.016

0.022

0.027

0.054

0.109

0.217

4118

2.65

30

0.010

0.020

0.031

0.041

0.051

0.102

0.205

0.409

3294

2.75

36

0.017

0.035

0.052

0.070

0.087

0.174

0.348

0.697

2745

2.79

42

0.027

0.055

0.082

0.109

0.136

0.273

0.545

2353

2.83

48

0.040

0.081

0.121

0.161

0.201

0.403

2059

2.86

54

0.057

0.114

0.170

0.227

0.284

0.568

1830

2.89

60

0.077

0.155

0.232

0.309

0.387

1647

2.91

66

0.102

0.204

0.307

0.409

0.511

1497

2.93

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

0.003

0.003

0.007

0.013

0.026

10541

1.71

18

0.002

0.005

0.007

0.010

0.012

0.025

0.050

0.099

4685

2.3

24

0.007

0.014

0.020

0.027

0.034

0.068

0.136

0.272

2635

2.65

30

0.016

0.032

0.048

0.064

0.080

0.160

0.320

0.639

1687

2.75

36

0.033

0.065

0.098

0.131

0.163

0.327

0.653

1171

2.79

42

0.060

0.119

0.179

0.239

0.298

0.597

861

2.83

48

0.101

0.201

0.302

0.403

0.503

659

2.86

54

0.160

0.319

0.479

0.638

521

2.89

60

0.242

0.483

422

2.91

66

0.351

348

2.93

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 2.47 in2 I = 0.70 in4 ST = 1.10 in3 SB = 0.82 in3

8

1.5″

1.5″

2.81

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 too 0.5″ (1/2″) as recommended by the Fiberglass Grating Manufacturers Council of the American Composites Manufacturers Association.