T 15-50 – T Bearing Bar PROGrate Pultruded Grating

1 1/2" Thick | 50% 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

0.003

0.004

0.005

0.006

0.013

0.026

0.051

5210

1.41

18

0.003

0.007

0.010

0.013

0.017

0.033

0.066

0.132

3473

1.84

24

0.007

0.014

0.021

0.029

0.036

0.072

0.143

0.286

2605

2.01

30

0.013

0.027

0.040

0.054

0.067

0.134

0.268

0.536

2084

2.1

36

0.023

0.045

0.068

0.090

0.113

0.225

0.450

1737

2.16

42

0.035

0.070

0.104

0.139

0.174

0.348

0.695

1489

2.22

48

0.051

0.102

0.153

0.204

0.255

0.510

1303

2.26

54

0.072

0.144

0.216

0.288

0.360

1158

2.28

60

0.098

0.196

0.293

0.391

0.489

1042

2.3

66

0.129

0.258

0.387

0.516

0.645

947

2.32

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

0.002

0.003

0.004

0.008

0.016

0.032

6669

1.41

18

0.003

0.006

0.009

0.012

0.015

0.031

0.062

0.124

3464

1.84

24

0.009

0.018

0.027

0.036

0.045

0.089

0.179

0.357

1667

2.01

30

0.021

0.042

0.063

0.084

0.105

0.209

0.419

1067

2.1

36

0.042

0.084

0.127

0.169

0.211

0.422

741

2.16

42

0.076

0.152

0.228

0.304

0.380

545

2.22

48

0.127

0.255

0.382

0.510

0.637

417

2.26

54

0.202

0.405

0.607

329

2.28

60

0.306

0.611

267

2.3

66

0.444

220

2.32

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 1.85 in2 I = 0.53 in4 ST = 0.83 in3 SB = 0.61 in3

6

1.5″

2″

2.23

 

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.