Image of yellow PROGrate Fiberglass Reinforced Plastic I-Bearing Bar, I-10-60 grating.

I 10-60 – I Bearing Bar

1" Thick | 60% Open
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Product Description Part Number Resin Color Length Location Pieces  

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

0.002

0.003

0.005

0.007

0.008

0.016

0.033

0.065

5755

1.10

18

0.004

0.009

0.013

0.018

0.022

0.044

0.088

0.176

3850

1.38

24

0.009

0.019

0.028

0.037

0.047

0.094

0.187

0.374

2888

1.54

30

0.017

0.035

0.052

0.069

0.086

0.173

0.345

0.690

2310

1.63

36

0.029

0.059

0.088

0.117

0.146

0.293

0.586

1925

1.66

42

0.046

0.092

0.138

0.184

0.230

0.459

1650

1.68

48

0.068

0.136

0.203

0.271

0.339

0.678

1444

1.70

54

0.095

0.191

0.286

0.381

0.477

1283

1.72

60

0.129

0.259

0.388

0.517

0.647

1155

1.74

66

0.171

0.342

0.513

0.685

1050

1.75

72

0.221

0.442

0.663

962

1.76

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

0.002

0.003

0.004

0.005

0.010

0.020

0.041

7944

1.10

18

0.004

0.008

0.012

0.017

0.021

0.041

0.083

0.165

5296

1.38

24

0.012

0.023

0.035

0.047

0.058

0.117

0.234

0.468

2935

1.54

30

0.027

0.054

0.081

0.108

0.135

0.270

0.539

1845

1.63

36

0.055

0.110

0.165

0.220

0.274

0.549

1281

1.66

42

0.100

0.201

0.301

0.402

0.502

943

1.68

48

0.169

0.339

0.508

0.678

721

1.70

54

0.268

0.536

571

1.72

60

0.404

514

1.74

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 2.44 in2 I = 0.31 in4 S = 0.62 in3

8

1″

1.5″

2.47

Technical illustrations of concentrated load and uniform load for PROGrate Fiberglass Reinforced Plastic grating.

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.

Technical illustration of Fiberglass Reinforced Plastic 10-60 I bearing bar grating.