Use the interaction diagrams found in Appendix A of the textbook to determine whether the following rectangular tied column with bars in 4 faces can safely support a load of Pu = 1,400 kip and Mu = 914.7 kip-ft.b = 20 in.h = 28 in.fc’ = 4 ksify = 60 ksiγ = 0.75ρg = 0.02

Rust does not cause cracks to expand because it occupies the same volume as the metal from which it is formed.

Compute the maximum bar spacing, s, to control for cracks in a one-way slab with 2.2 in. of clear cover and f​y​ = 58 ksi.

Columns with ties generally exhibits more ductility than columns with spirals.

The ACI Code defines 0.02 as the maximum usable compressive strain for reinforced concrete.

At a point subjected to plane stress, the stresses are σx = –60 MPa, σy = –40 MPa, and τxy = 100 MPa. Determine the angle θp corresponding to the orientation of the principal planes at the point.

A simply supported beam with dimensions of b = 14 in., h = 26 in., d = 23.5 in., and L = 23 ft supports a uniform service (unfactored) dead load of 1.479167 kips/ft including its own self weight plus a uniform service (unfactored) live load of 1.3 kips/ft. The beam is reinforced with five No. 7 Grade 60 bars. The concrete strength is 5,800 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Using the effective moment of inertia, determine the immediate mid-span deflection of the beam due to the combined service loads (dead plus live).The effective moment of inertia Ie = 7,972.8 in.4.

Which of the following defines a slender or long column?

Compute the maximum bar spacing, s, to control for cracks in a one-way slab with 1.7 in. of clear cover and f​y​ = 64 ksi.

A simply supported beam with dimensions of b = 14 in., h = 28 in., d = 25.5 in., and L = 18 ft supports a uniform service (unfactored) dead load of 2.008333 kips/ft including its own self weight plus a uniform service (unfactored) live load of 1.5 kips/ft. The beam is reinforced with five No. 5 Grade 60 bars. The concrete strength is 7,900 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the effective moment of inertia, Ie.The cracked moment Mcr = 101.6 kip-ft, and the maximum applied bending moment due to the combined service loads (dead plus live) Ma = 142.1 kip-ft. The neutral axis location of the cracked beam (measured from the top of the beam) is 5.0866 in.