PROGRAM TO DESIGN A PLATE TYPE LIFTING LUG v.03
COMPANY:
PROJECT:
ITEM NUMBER:
Crosby G2130x85
Crosby G2130x8.50
Crosby G2130x12
Crosby G2130x17
Crosby G2130x25
Crosby G2130x35
Crosby G2130x55
Crosby G2130x85
Crosby G2130x120
Crosby G2130x150
Crosby G2140x200
Crosby G2140x250
Crosby G2140x300
Crosby G2140x400
Select a metric shackle from the lookup table based on the force on the lug or click the SHACKLE button to enter your own shackle and lug data.
in
Shackle Inside Width at Pin
in
Shackle Eye Diameter
in
Shackle Pin Diameter
in
Lug Pin Hole Diameter
Recommend hole be 0.13� or > than shackle pin dia.
in
Lug Radius
in
Lug Plate Thickness
in
Lug Plate Width at Base
Minimum value of 2*radius of lug
in
Lug Side weld length
Recommend using min. 0.7 * lug plate width
in
Lug Pad Thickness
Input zero if pads are not required
in
Lug Pad Radius
Input zero if pads are not required
in
Lug Eccentricity
kips
Force on the Lug
deg
Angle of the Force on the Lug
Measured from the horizontal
ksi
Yield Stress of the Lug Material
Fy
kips/in
Allowable Force on the Weld
Use 10.91 for LH60 or 14.85 for LH70
Impact factor, IF
Recommend that a minimum 1.8 impact factor be used
Result:
OUTPUT:
Checking combined stress of the lug plate
in^2
Area of Lug Plate at Base
in^3
Section modulus of the lug plate at the base
ksi
Bending stress of the lug plate fb, actual
ksi
Tension stress of the lug plate ft, actual
ksi
Shear stress of lug plate fs, actual
ksi
Allowable bending and tension stress, Fb & Ft
ksi
Allowable for the shear stress, Fs
Combined stress of the lug plate. Must be less than 1.0
Checking the lug weld size for a THREE sided weld, with the weld treated as a line
in
Area of the weld
kips/in
Horizontal component of twist
kips/in
Vertical component of twist
kips/in
Tension force on the weld
kips/in
Shearing force on the weld
kips/in
Resultant Force on the weld
in
Minimum weld size
Checking the lug weld size for a FOUR sided weld, with the weld treated as a line
in
Area of the weld
kips/in
Horizontal component of twist
kips/in
Vertical component of twist
kips/in
Tension force on the weld
kips/in
Shearing force on the weld
kips/in
Resultant Force on the weld
in
Minimum weld size
Checking bearing at the pin hole
ksi
Bearing stress of the lug without pads
ksi
Bearing stress with pads attached
ksi
Allowable bearing stress
kips
Load per pad
in
Pad weld size, min.
Checking end area of the lug across the pin hole
in^2
End area required across the pin hole
in
Maximum effective lug radius. Used to calculate the max. allowable end area
in^2
Maximum effective end area
Checking end area of the lug past the pin hole
in^2
Area required past the pin hole
in^2
Actual end area
in^2
Maximum allowable end area