The largest moments in a continuous beam or a frame occur when some spans are loaded with dead load and others are not. Influence lines are often used to determine which span should and should not be loaded.

It is common to design beams where the b and h values are already known.

A beam has dimensions of b = 16 in., h = 28 in., and d = 25.5 in. and is reinforced with 2 No. 8 bars. The concrete strength is 7,000 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.

One of the four primary reasons for using compression reinforcement in beams is increased lifespan of the structure.

At a point subjected to plane stress, the stresses are σx = 10 MPa, σy = –50 MPa, and τxy = –90 MPa. Determine the angle θp corresponding to the orientation of the principal planes at the point.

A classmate has suggested a beam design that has dimensions of b = 14 in., h = 28 in., and d = 25.5 in. and is reinforced with 4 No. 11 bars. Assuming a cover of 1.5 in. and a stirrup diameter of 0.5 in., does the reinforcement fit within a single row as suggested?

A beam has dimensions of b = 16 in., h = 22 in., and d = 19.5 in. and is reinforced with 2 No. 5 bars. The concrete strength is 10,000 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.

What is the primary reason to add web reinforcement?

A classmate has suggested a beam design that has dimensions of b = 12 in., h = 22 in., and d = 19.5 in. and is reinforced with 4 No. 14 bars. Assuming a cover of 1.5 in. and a stirrup diameter of 0.5 in., does the reinforcement fit within a single row as suggested?

Two-way slabs typically have flexural reinforcement in the short direction to resist the entire load applied to the floor and only minimum steel for temperature and shrinkage effects in the long direction.