Usas este recipiente para tomar sopa. El hondo.

Determine the lightweight modification factor, λ, for a rectangular beam with b = 17 in. and d = 24 in., five galvanized No. 9 Grade 60 tension-reinforcement 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 1.5 in.

Universally accepted crack widths are specified in ACI 318.

Determine the size modification factor, ψs, for a rectangular beam with b = 18 in. and d = 22 in., four epoxy-coated No. 6 Grade 60 tension-reinforcement bars placed in the top of the beam, and No. 4 Grade 40 stirrups located every 12 in. along the span. Assume 4,000-psi lightweight concrete and a clear cover of 1.75 in.

Bricks expand with time due to an increase in _______ above their kiln-dried condition.

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 9 No. 8 bars at a depth of 20 in. The top row contains 6 No. 5 bars at a depth of 16 in. Determine the effective (centroidal) depth, d, of the steel.

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 = 22 in., four galvanized No. 8 Grade 60 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 1.75 in.

In a pull-out test, a concrete cylinder containing the bar is placed on a stiff plate and a jack is used to push the bar into the cylinder.

In the long-term, the concrete frame of a building will shorten due to creep and the brick exterior will expand due to an increase in moisture content.

A rectangular beam has a cross section of b = 16 in., h = 28 in., and d = 25.5 in. It is reinforced with three No. 7 Grade 60 bars. The concrete strength is 4,300 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the gross moment of inertia, Ig, for the beam.