I 10-60 – I Bearing Bar

1" Thick | 60% Open

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I 10-60 – I Bearing Bar

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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)
Span (inches)	50	100	150	200	250	500	1000	2000	Max Load (lb/ft)	Apparent EI x 10⁶ (lb-in²)
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)
Span (inches)	50	100	150	200	250	500	1000	2000	Max Load (lb/ft²)	Apparent EI x 10⁶ (lb-in²)
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

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.