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Es el sabor (flavor) que tiene el café sin azúcar:[q12].

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 = 24 in., three uncoated No. 6 Grade 60 bars placed in the top of the beam, and No. 3 Grade 60 stirrups located every 12 in. along the span. Assume 4,000-psi lightweight concrete and a clear cover of 1.5 in.

A 120-mm-long beam supports a load of P = 47 N at midspan. The cross section is rectangular with width b = 27 mm and height h = 60 mm. Determine the magnitude of the horizontal shear stress at the centroid of the cross section.

Epoxy-coated or galvanized reinforcement is used to reduce corrosion problems.

Determine the lightweight modification factor, λ, for a rectangular beam with b = 18 in. and d = 23 in., five galvanized No. 7 Grade 60 tension-reinforcement bars placed in the top of the beam, and No. 3 Grade 60 stirrups located every 6 in. along the span. Assume 8,000-psi normal-weight concrete and a clear cover of 1.75 in.

A rectangular beam has a cross section of b = 14 in., h = 30 in., and d = 27.5 in. It is reinforced with four No. 7 Grade 60 bars. The concrete strength is 5,200 psi (normal weight). The beam has Grade 60 No. 3 stirrups satisfying ACI 318-14 Sections 9.7.6.2.2 and 9.6.3.3. Determine the strength φMn for this beam.

When the force in a reinforcing bar changes from point to point along its length, there must be bond stresses between it and the concrete.

A large stress concentration, possibly leading to large inclined cracks, happens when a tension bar is cutoff at a location of high shear force.

The ACI Code uses the concept of development length instead of _______, because the actual bond stress varies along the length of a reinforcing bar.

Is the actual size of hooks critical in detailing a structure?