I 15-60-ADA - I Bearing Bar

1 1/2" Thick | 60% Open | ADA Compliant

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I 15-60-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	0.003	0.003	0.006	0.013	0.026	10046	2.80
18	0.002	0.003	0.005	0.007	0.008	0.017	0.034	0.068	6697	3.60
24	0.003	0.007	0.010	0.014	0.017	0.035	0.069	0.139	5023	4.15
30	0.006	0.013	0.019	0.025	0.032	0.063	0.126	0.253	4018	4.45
36	0.011	0.021	0.032	0.042	0.053	0.106	0.212	0.424	3349	4.58
42	0.017	0.033	0.050	0.067	0.083	0.166	0.333		2870	4.64
48	0.025	0.049	0.074	0.099	0.124	0.247	0.494		2511	4.66
54	0.035	0.070	0.105	0.140	0.174	0.349			2232	4.70
60	0.048	0.095	0.143	0.191	0.238	0.477			2009	4.72
66	0.063	0.126	0.190	0.253	0.316				1826	4.74
72	0.082	0.163	0.245	0.327	0.408				1674	4.76

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	0.002	0.002	0.004	0.008	0.016	12858	2.80
18	0.002	0.003	0.005	0.006	0.008	0.016	0.032	0.063	5715	3.60
24	0.004	0.009	0.013	0.017	0.022	0.043	0.087	0.173	3215	4.15
30	0.010	0.020	0.030	0.040	0.049	0.099	0.198	0.395	2057	4.45
36	0.020	0.040	0.060	0.080	0.099	0.199	0.398		1429	4.58
42	0.036	0.073	0.109	0.146	0.182	0.364			1050	4.64
48	0.062	0.124	0.185	0.247	0.309				804	4.66
54	0.098	0.196	0.294	0.393	0.491				635	4.7
60	0.149	0.298	0.447						514	4.72
66	0.217	0.434							425	4.74
72	0.306	0.612							357	4.76

Properties Per Foot of Width	# of Bars	Load Bar Depth	Bar Centers	Weight/sq ft
A = 4.07 in² I = 0.90 in⁴ S = 1.20 in³	15	1.5″	0.78″	3.74

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.