A rectangular beam has a cross section of b = 14 in., h = 22…
A rectangular beam has a cross section of b = 14 in., h = 22 in., and d = 19.5 in. It is reinforced with two No. 8 Grade 60 bars. The concrete strength is 7,000 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the gross moment of inertia, Ig, for the beam.
Read DetailsA driver accidentally bumped a fire hydrant creating a bendi…
A driver accidentally bumped a fire hydrant creating a bending moment of 715 N·m in the pipe below. The pipe has an inside diameter of 200 mm and a wall thickness of 8 mm and is pressurized to 355 kPa. Determine the largest normal stress along the length of the pipe.
Read DetailsA rectangular beam has a cross section of b = 18 in., h = 22…
A rectangular beam has a cross section of b = 18 in., h = 22 in., and d = 19.5 in. It is reinforced with five No. 6 Grade 60 bars. The concrete strength is 3,400 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the modulus of rupture of the concrete, fr.
Read DetailsA rectangular beam has a cross section of b = 18 in., h = 26…
A rectangular beam has a cross section of b = 18 in., h = 26 in., and d = 23.5 in. It is reinforced with three No. 8 Grade 60 bars. The concrete strength is 6,400 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the neutral axis location of the cracked beam (measured from the top of the beam).
Read DetailsA rectangular beam has a cross section of b = 14 in., h = 28…
A rectangular beam has a cross section of b = 14 in., h = 28 in., and d = 25.5 in. It is reinforced with four No. 8 Grade 60 bars. The concrete strength is 3,400 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the transformed cross-sectional area of the bars, Ast.
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