Lifting Lug Weld DesignR1a.xls

	A	B	C	D	I
1			Design of Lifting Lug Weld
2
3	Design By:
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24	P =	5.5	kip
25	θ =	70	degrees	Angle Between Y-Axis and P
26	S.F. =	3	Safety Factor		Safety factor of 3 is required for lifting lugs. A factor of 2 is common for fall protection systems and other uses.
27	Px =	5.17	kip
28	Py =	1.88	kip
29	b =	0.5	in
30	d =	4.5	in
31
32	Aw =	10	in
33	c =	2.25	in	Distance from Px to Plate
34	Mu =	11.63	kip*in
35
36	Sw =	9.00	in2
37	fb =	1.29	kip/in
38	ft =	0.19	kip/in
39	fv =	0.52	kip/in
40
41	fr =	1.568	kip/in
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43	D=	2.53	Weld Size in Sixteenths of an Inch
44			For E70 Electrodes
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46	NOTE:	Weld size is based on weld load only. Base material should
47		also be checked!
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