Problem 4

A steel bar of thickness h, to be used as a beam, is welded to a vertical support by two fillet welds

as shown in the figure.

(a) Find the safe bending force F if the allowable shear stress in the welds is Tallow.

(b) In part a, you found a simple expression for F in terms of the allowable shear stress. Find the

allowable load if the electrode is E7010, the bar is hot-rolled 1020, and the support is hot-

rolled 1015.

Given that b = 4 in, c = 6 in, d = 2 in and h = 5/16 in and Tallow = 25 kpsi

F

+

d

| b

h

C