Companies often reorganize their operations which might incl…

Companies often reorganize their operations which might include lay-offs, divestiture of business units, or other decisions linked to their ability to maximize profitability.  Which dimension of social responsibility is related to a firm’s desire to maximize profits?

Use ACI 318-14 Table 25.4.2.2 to determine the development l…

Use ACI 318-14 Table 25.4.2.2 to determine the development length for the straight tension bars (no hooks) in a rectangular beam with b = 18 in. and d = 24 in., five uncoated No. 9 Grade 60 bars placed in the bottom of the beam, and No. 4 Grade 60 stirrups located every 12 in. along the span. Assume 6,000-psi lightweight concrete and a clear cover of 1.75 in.

Use ACI 318-14 Table 25.4.2.2 to determine the development l…

Use ACI 318-14 Table 25.4.2.2 to determine the development length for the straight tension bars (no hooks) in a rectangular beam with b = 17 in. and d = 20 in., five galvanized No. 9 Grade 60 bars placed in the bottom of the beam, and No. 4 Grade 60 stirrups located every 8 in. along the span. Assume 7,000-psi lightweight concrete and a clear cover of 1.75 in.

A continuous beam’s flexural reinforcement must extend at le…

A continuous beam’s flexural reinforcement must extend at least _____ from the point where it is no longer needed to resist tension. Assume f’c = 4,000 psi, fyt = 40,000 psi, b1 = 28 in., b2 = 15 in., d = 23 in., h1 = 6 in., h2 = 13 in., h3 = 9 in., and t = 6 in. There are four No. 8 longitudinal tension bars and No. 3 stirrups at 9 in. o.c.

Determine the casting-position modification factor, ψt, for…

Determine the casting-position modification factor, ψt, for a rectangular beam with b = 16 in. and d = 23 in., five epoxy-coated No. 8 Grade 60 tension-reinforcement bars placed in the top of the beam, and No. 3 Grade 60 stirrups located every 8 in. along the span. Assume 7,000-psi normal-weight concrete and a clear cover of 2 in.

Assuming Vs does not exceed 4sqrt(f’c)bwd, the maximum spaci…

Assuming Vs does not exceed 4sqrt(f’c)bwd, the maximum spacing for vertical stirrups in the following beam is _____. Let b1 = 22 in., b2 = 11 in., d = 57 in., h1 = 4 in., h2 = 50 in., h3 = 8 in., and t = 8 in. There are six No. 9 longitudinal tension bars and No. 3 stirrups at 7 in. o.c.