Determine the required splice length for the epoxy-coated lo…
Determine the required splice length for the epoxy-coated longitudinal bars in the following tied column made of normal-weight concrete. Assume that some of the longitudinal bars are in tension and that the connection should be designed as a Class B contact lap splice. Use ACI 318-14 Table 25.4.2.2 to calculate the development length, and assume that the ties satisfy the Code minimum.Column width, b = 22 in.Column thickness, h = 24 in.Clear cover to ties = 1.5 in.Number of longitudinal bars = 12Size of longitudinal bars = No. 9Size of ties = No. 3Concrete strength = 3,000 psiYield strength of longitudinal bars = 60,000 psiYield strength of ties = 40,000 psi
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 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 assumed modulus of elasticity of the concrete, Ec.
Read DetailsDetermine the maximum axial strength φPn,max for the followi…
Determine the maximum axial strength φPn,max for the following circular spiral column.Column diameter, h = 24 in.Number of longitudinal bars = 12Size of longitudinal bars = No. 10Size of spirals = No. 3Concrete strength = 5,000 psiYield strength of longitudinal bars = 60,000 psiYield strength of spirals = 60,000 psi
Read DetailsA rectangular beam has a cross section of b = 14 in., h = 24…
A rectangular beam has a cross section of b = 14 in., h = 24 in., and d = 21.5 in. It is reinforced with five No. 7 Grade 60 bars. The concrete strength is 4,900 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the transformed cross-sectional area of the bars, Ast.
Read DetailsAssuming Vs exceeds 4sqrt(f’c)bwd, the maximum spacing for v…
Assuming Vs exceeds 4sqrt(f’c)bwd, the maximum spacing for vertical stirrups in the following beam is _____. Let b1 = 28 in., b2 = 12 in., d1 = 8 in., and d2 = 49 in. There are three No. 8 longitudinal tension bars and No. 3 stirrups at 11 in. o.c.
Read DetailsA building has a ramp to its front doors to accommodate the…
A building has a ramp to its front doors to accommodate the handicapped. If the distance from the building to the end of the ramp is 22 feet and the height from the ground to the front doors is 5 feet, how long is the ramp? (Round to the nearest tenth.) (5 points)
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