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I 15-40-ADA - I Bearing Bar

1 1/2" Thick | 40% Open | ADA Compliant

Special Order

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I 15-40-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	0.005	0.011	0.021	15057	3.40
18	0.001	0.002	0.003	0.004	0.006	0.011	0.022	0.045	10038	5.42
24	0.002	0.005	0.007	0.009	0.012	0.023	0.047	0.094	7528	6.16
30	0.004	0.008	0.013	0.017	0.021	0.042	0.085	0.170	6023	6.63
36	0.007	0.014	0.022	0.029	0.036	0.072	0.143	0.287	5019	6.78
42	0.011	0.022	0.034	0.045	0.056	0.112	0.224	0.447	4302	6.90
48	0.016	0.033	0.049	0.065	0.082	0.163	0.327		3764	7.05
54	0.023	0.046	0.069	0.092	0.115	0.229	0.459		3346	7.15
60	0.031	0.063	0.094	0.125	0.157	0.313			3011	7.18
66	0.042	0.083	0.125	0.166	0.208	0.416			2738	7.20
72	0.054	0.108	0.162	0.215	0.269	0.539			2509	7.22

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	0.013	19273	3.40
18	0.001	0.002	0.003	0.004	0.005	0.011	0.021	0.042	8566	5.42
24	0.003	0.006	0.009	0.012	0.015	0.029	0.058	0.117	4818	6.16
30	0.007	0.013	0.020	0.027	0.033	0.066	0.133	0.265	3084	6.63
36	0.013	0.027	0.040	0.054	0.067	0.134	0.269		2141	6.78
42	0.024	0.049	0.073	0.098	0.122	0.245			1573	6.9
48	0.041	0.082	0.123	0.163	0.204				1205	7.05
54	0.065	0.129	0.194	0.258	0.323				952	7.15
60	0.098	0.196	0.294	0.392	0.490				771	7.18
66	0.143	0.286	0.429						637	7.2
72	0.202	0.404							535	7.22

Properties Per Foot of Width	# of Bars	Load Bar Depth	Bar Centers	Weight/sq ft
A = 6.24 in² I = 1.38 in⁴ S = 1.84 in³	23	1.5″	0.52″	5.32

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.