I 15-50-ADA - I Bearing Bar

1 1/2" Thick | 50% Open | ADA Compliant

Special Order

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I 15-50-ADA - I Bearing Bar

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)
Span (inches)	50	100	150	200	250	500	1000	2000	Max Load (lb/ft)	Apparent EI x 10⁶ (lb-in²)
12	0.001	0.001	0.002	0.002	0.003	0.006	0.011	0.022	12052	3.26
18	0.001	0.003	0.004	0.006	0.007	0.014	0.028	0.056	8035	4.32
24	0.003	0.006	0.009	0.012	0.015	0.029	0.058	0.116	6026	4.96
30	0.005	0.010	0.016	0.021	0.026	0.052	0.104	0.208	4821	5.42
36	0.009	0.017	0.026	0.035	0.043	0.086	0.173	0.346	4017	5.62
42	0.013	0.027	0.040	0.054	0.067	0.134	0.269		3444	5.74
48	0.020	0.040	0.060	0.079	0.099	0.199	0.397		3013	5.80
54	0.028	0.056	0.085	0.113	0.141	0.282			2678	5.82
60	0.039	0.077	0.116	0.154	0.193	0.385			2410	5.84
66	0.051	0.102	0.153	0.204	0.256	0.511			2191	5.86
72	0.066	0.132	0.198	0.264	0.331				2009	5.88

Span (inches)	UNIFORM LOAD in lb/ft²								Max Load (lb/ft²)	Apparent EI x 10⁶ (lb-in²)
Span (inches)	50	100	150	200	250	500	1000	2000	Max Load (lb/ft²)	Apparent EI x 10⁶ (lb-in²)
12	0.000	0.001	0.001	0.001	0.002	0.003	0.007	0.014	15427	3.26
18	0.001	0.003	0.004	0.005	0.007	0.013	0.026	0.053	6856	4.32
24	0.004	0.007	0.011	0.015	0.018	0.036	0.073	0.145	3857	4.96
30	0.008	0.016	0.024	0.032	0.041	0.081	0.162	0.324	2468	5.42
36	0.016	0.032	0.049	0.065	0.081	0.162	0.324		1714	5.62
42	0.029	0.059	0.088	0.118	0.147	0.294			1259	5.74
48	0.050	0.099	0.149	0.199	0.248				964	5.8
54	0.079	0.159	0.238	0.317	0.396				762	5.82
60	0.120	0.241	0.361	0.482					617	5.84
66	0.176	0.351							510	5.86
72	0.248	0.496							429	5.88

Properties Per Foot of Width	# of Bars	Load Bar Depth	Bar Centers	Weight/sq ft
A = 5.15 in² I = 1.14 in⁴ S = 1.52 in³	19	1.5″	0.63″	4.64

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.