A steel loop ABCD of length 5 ft and of -in. diameter is placed as shown around a 1-in.-diameter aluminum rod AC. Cables BE and DF, each of -in. diameter, are used to apply the load Q. Knowing that the ultimate strength of the steel used for the loop and the cables is 75 ksi, and that the ultimate strength of the aluminum used for the rod is 43 ksi, determine the largest load Q that can be applied if an overall factor of safety of 3 is desired. 9 in. 9 in. 12 in. E 1 in. 4 ↑ B D 12 in. in. in. The largest load Q that can be applied is kips.

Answer the following for the section at Point D Only Calculate the distributed load "w" that: Will cause the section crack Will cause the reinforcement to yield. Material Properties: F'c = 5000 psi Fy = 60000 psi Es = 29000000 psi Ln = 27 ft L wl₂² 16 wl,² 14 CD L wl,2 vl₁² 10 11 win² 16 h: 28 in A=4 in² b=14 in n d: 25 in

3. A threaded rod and nut arrangement are guided with two washers, upper and lower washers tightened into a base plate. Considering that the base plate carries a load of 120 kN including its self-weight which is distributed equally: a. Determine the stress on the lower washers before the buts are tightened. b. Determine the stress int the upper washer when the nuts are tightened so as to produce a tension of 5kN on the bolt. Determine the stress int the lower washer when the nuts are tightened so as to produce a tension of 5kN on the bolt. c. 44 mm Upper washer Base plate Lower washer 20 mm 22 mm 50 mm

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