In reinforced Concrete design, the BALANCED reinforcing stee…

In reinforced Concrete design, the BALANCED reinforcing steel ratio is the value at which (choose an option): tensile steel yields at the same time the extreme compression concrete fiber crushes (at concrete strain 0.003). tensile steel yields first and then the extreme compression concrete fiber crushes (at concrete strain 0.003). compression concrete crushes first (the extreme concrete fiber crushes at concrete strain 0.003) and then tensile steel yields. Concrete does not crush and steel does not yield None of the above

Determine the depth of the neutral axis “c” for beam that ha…

Determine the depth of the neutral axis “c” for beam that has a rectangular cross section with a width b = 18 inch, and a height h = 30 inch, a cover to steel centerline = 2 inch.  The steel reinforcement was eight bars 8 #9 with a total area of (8 x 1.00 = 8 in2). if f’c = 4,000 psi and fy = 60,000 psi.