When the steel ratio, ρw, is small, flexural cracks extend _______ into the beam and open _______ than would be the case with large values of ρw.

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A simply-supported beam has a 1 kip/ft uniformly-distributed load over the left half of its 9-ft span. What is the magnitude of the shear force at midspan?

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.

At a point subjected to plane stress, the stresses are σx = 10 MPa, σy = 60 MPa, and τxy = –20 MPa. Determine the angle θp corresponding to the orientation of the principal planes at the point.

According to ACI 318, welded wire fabric can be used as web reinforcement.

When the steel ratio is small, flexural cracks extend higher into the beam and open wider.

Compute φVn for the cross section shown. Assume f’c = 3,000 psi, fyt = 60,000 psi, d = 22 in., w = 12.5 in., t = 6 in., and that there are four No. 7 longitudinal tension bars and No. 5 stirrups at 9 in. o.c.

The b in VQ/Ib represents _______.

For a beam with stirrup hooks, the free end of the bar must extend at least _____ from the hook. Assume b1 = 26 in., b2 = 10 in., d1 = 8 in., d2 = 13 in., and that there are three No. 7 longitudinal tension bars and No. 3 stirrups at 12 in. o.c. The stirrup hooks are 90°.