1.how many cubic yards of aggregate must be ordered for a road base 16 inches thick and 2000 feet long with a top width of 30 ft, if the side slopes are one on one, or 45 degree?
2.Determine a set of rectangular beam design values (b),( d) and (As) area of steel, that will be needed to support a factored bending moment (Mu=450 Kip-ft). Use (f’c=4,500 psi) and (fy=40,000 psi). Use beam width of approximately 0.6 times effective depth. (b= 0.6 d).
3.Why is aluminum preferred over iron-based alloys in the aerospace industry and iron-based alloys over aluminum in structural numbers of bridges and buildings?
4.What is the total deformation in a 15' 2'' square steel hanger that supports a 36000 pound load? E for steel is 29000000 Psi