Soldaduras Orejas de Izaje

PROJECT

SECTION

welded lifting lug

DATE

FILE welded_connection_1.xls

TIME

TITLE

1 08/18/13 4:12 PM

DESCRIPTION

Note: The lifting lug shown above is used in lifting pipes for placement in the shaft of the water filtration plant. Pipe wall thicknesses vary between 32 mm and 12 mm with variation in pipe weights. For this application it will be assumed that the maximum force is as shown above and acts on the maximum pipe wall thickness. INPUT performance factor load factor weld size ( leg ) lug thickness lug length wall thickness applied force ultimate plate strength ultimate electrode strength angle of axis force/weld line

phiw = lf = ws = tlug = llength = twall = Vf = Fu = Xu = theta =

0.67 1.4 10 25 300 32 212 0.45 0.48 45

CALCULATIONS min. plate thickness t = cross section plate Am = weld length wlength= cross section weld Aw = shear resistance base metal Vrfb = shear resistance weld Vrfw = resulting shear resistance Vrf =

MIN(tlug,twall) = 25 t*wlength = 15000 llength*2 = 600 ws*wlength = 6000 0.67*phiw*Am*Fu = 3030.1 0.67*phiw*Aw*Xu*(1+.5*SIN(RADIANS(30))^1.5) = 1521.4 MIN(Vrfb,Vrfw) = 1521.4

design efficiency (