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DSI Underground Systems > Products > Lattice Girders, Steel Arches & Props > Lattice Girders > 3 bar type

Lattice Girders and Steel Arches

3 bar type

O.P.	Bar Size			Weight	H	B	e	H₁	Ix	Sx	ly	By	Joint Plate			Foot Plate
													Size	Length	Unit Wt	Size	Unit Wt
Type	S₃	S₂	S₁	[lbs/ft]	[in]	[in]	[in]	[in]	[in²]	[in²]	[in²]	[in²]	[in]	[in]	[lbs]	[in]	[lbs]
50	6	8	0.39°	6.72	3.70	3.94	2.01		3.441	1.716	2.324	1.180	L4 x 3 x ³/₈x	4⁹/₁₆	3.2	³/₈x5x5	2.7
	6	10		8.26	3.94		1.88		4.676	2.226	2.395	1.216		4⁹/₁₆	3.2
70	6	8	0.39°	6.95	4.50	5.60	2.42	2.75	5.544	2.295	5.064	1.846		5⁵/₁₆	3.5	³/₈x6x6	3.8
	6	10		8.59	4.77		2.20		7.376	2.886	5.135	1.867		5¹/₂	3.7
	8	11		11.83	5.16		2.69		12.108	4.465	8.226	2.991		5³/₄	3.9
95	6	8	0.47°	7.07	5.50	7.09	2.94	3.76	8.937	3.036	8.950	2.526		5⁹/₁₆	4.4	³/₈x7x8	6.0
	6	10		8.70	5.77		2.59		11.741	3.751	9.028	2.548		6³/₄	4.6
	8	11		12.05	6.16		3.18		18.883	5.854	14.840	4.188		7¹/₁₆	4.8
115	6	8	0.47°	7.94	6.25	8.66	3.37	4.50	12.182	3.636	13.906	3.21	L5 x 3 x ¹/₂x	7¹¹/₁₆	8.0	³/₈x8x9¹/₂	8.1
	6	10		9.58	6.52		2.91		15.849	4.416	13.985	3.229		7¹³/₁₆	8.1
	8	11		12.92	6.91		3.69		25.208	6.953	23.342	5.390		8¹/₈	8.4
130	6	8		7.76	6.87	8.66	3.69	5.12	15.015	4.068	13.906	3.211		8¹/₈	8.4	3/8x8x9¹/₂	8.1
	6	10		9.39	7.14		3.15		19.379	4.929	13.977	3.229		8⁵/₁₆	8.6
	8	11		12.73	7.53		3.93		30.623	7.794	23.342	5.390		8³/₄	9.3

PRINTED January 2009: All dimensions, weights, quantities and specifications are those applicable at the time of publication and may be amended from time to time.