Lift Beam Analysis.xls

Station 5 lift beam Analysis Materials: ASTM A36 plate

Ftu Fy

58,000 psi 36,000

Lug data: (Values are in inches) t= a= Dh = Dp = R= be = Nd = Pt =

Pb =

Pv =

Lug allowable limit load: Pin

Ftu 150,000 Fy 130,000

Ref: ASME BTH-1-2005 Design of Below-the-Hook Lifting Devices, pages 23, 24 1.25 2 2 1.75 2.875 1.25 3

Lug thickness lug material above the hole diameter of hole pin diameter distance form center of hole to plate edge in the direction of the load effective width to each side of the pin hole minimum design factor

50,347 lbs, The allowable tensile strength through the pin hole beff = 5.000 or beff = 1.528 or be 56,921 lbs, The allowable single plane fracture strength beyond the pin hole Pb part 1 2.119 Pb part 2 0.708 61,126 lbs, The allowable double plane shear strength beyond the pin hole Av = 5.420 the total area of the two shear planes beyond the pin hole 50,347 lbs,

Dp = 1.75 Pin area = 2.405 Nd = 3 Pp = 70,154 2 x Pb = 140,308

Weld region Weld length in tension= fillet eld size = fillet weld in tension

SAE J429 Grade 8 Bolt

pin diameter

SAE J429 Grade 8 Bolt

Fr

minimum design factor lbs, Single shear pin strength lbs, Double shear pin strength

6.5 total length (in) 2(2 x be + Dh) 0.5 700 lbs, weld strength per 1/16 fillet (E70 weld wire) 36,400 lbs

Fv

60 Fh

d

60 46,188 23,094 4 92,376 Fh

M

40,000

lift angle Reaction load (Fr) Fh d M

Reaction load (Fr)