The actual size of a hook in a hooked anchorage is frequently critical in detailing a structure.

Determine the size modification factor, ψs, for a rectangular beam with b = 17 in. and d = 21 in., five uncoated No. 7 Grade 60 tension-reinforcement bars placed in the bottom of the beam, and No. 4 Grade 40 stirrups located every 10 in. along the span. Assume 8,000-psi lightweight concrete and a clear cover of 1.75 in.

A rectangular beam has a cross section of b = 18 in., h = 22 in., and d = 19.5 in. It is reinforced with four No. 8 Grade 60 bars. The concrete strength is 8,800 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the cracking moment, Mcr.

Members subjected to _______ may develop vertical cracks that extend approximately to the zero-strain axis (neutral axis) of the member.

79. Fill in the translations below. ô  é  è  ê  ë  à  â  ç  ï  î  ù  û  û  œ a selfish (female) student = une [1] [2]

A rectangular beam has a cross section of b = 18 in., h = 24 in., and d = 21.5 in. It is reinforced with five No. 5 Grade 60 bars. The concrete strength is 6,400 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.

Determine the size modification factor, ψs, for a rectangular beam with b = 16 in. and d = 21 in., three galvanized No. 8 Grade 60 tension-reinforcement bars placed in the bottom of the beam, and No. 4 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 124-mm-long beam supports a load of P = 48 N at midspan. The cross section is rectangular with width b = 25 mm and height h = 40 mm. Determine the magnitude of the horizontal shear stress at the centroid of the cross section.

Use the Rational Zeros Theorem to write a list of all potential rational zeros. (5 points) f(x) = 13×3 + 23×2 + 2x – 26  

Bond stresses must be absent whenever the stress or force in a reinforcing bar changes from point to point along the length of the bar.