Compute the axial compressive strength Pn and moment capacit…

Compute the axial compressive strength Pn and moment capacity Mn of the following tied column when the largest strain in the concrete is 0.003 and the strain in the tension reinforcement is 0.003. Note that you should not include φ in the answer and that you should not consider Pn,max.b = 16 in.h = 22 in.Clear cover to ties = 1.5 in.Number of longitudinal bars = 6Size of longitudinal bars = No. 9Size of ties = No. 3Concrete strength = 3,000 psiYield strength of longitudinal bars = 60,000 psiYield strength of ties = 60,000 psi

A 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 three No. 7 Grade 60 bars. The concrete strength is 8,800 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the modulus of rupture of the concrete, fr.

Determine the maximum pitch, s, for the spirals in the follo…

Determine the maximum pitch, s, for the spirals in the following circular column.Column diameter, h = 20 in.Clear cover to spirals = 1.5 in.Number of longitudinal bars = 6Size of longitudinal bars = No. 8Size of spiral = No. 3Concrete strength = 2,500 psiYield strength of longitudinal bars = 60,000 psiYield strength of spiral = 60,000 psi