A W12 x 79 is used as a column section with an unbraced length of 4.1m. Assume Kx = Ky =1.0.Use Fy = 245 MPa, fc' = 28 MPa. The column is interfaced to a concrete pedestal. E = 200000 MPa. Properties of W12 x 70 A = 14968 mm2 Sx = 1753 x 103 mm3 d = 314.45 mm Sy = 587 x 103 mm3 bf = 306.83 mm rx = 135.64 mm tf = 18.69 mm ry = 77.47 mm tx = 11.94 mm a) Compute the max. Capacity of the column section. b) Design the size of the column base plate. c) Design the thickness of the base plate.
A W12 x 79 is used as a column section with an unbraced length of 4.1m. Assume Kx = Ky =1.0.Use Fy = 245 MPa, fc' = 28 MPa. The column is interfaced to a concrete pedestal. E = 200000 MPa. Properties of W12 x 70 A = 14968 mm2 Sx = 1753 x 103 mm3 d = 314.45 mm Sy = 587 x 103 mm3 bf = 306.83 mm rx = 135.64 mm tf = 18.69 mm ry = 77.47 mm tx = 11.94 mm a) Compute the max. Capacity of the column section. b) Design the size of the column base plate. c) Design the thickness of the base plate.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A W12 x 79 is used as a column section with an unbraced length of 4.1m. Assume Kx = Ky =1.0.Use Fy = 245 MPa, fc' = 28 MPa. The column is interfaced to a concrete pedestal. E = 200000 MPa.
Properties of W12 x 70
A = 14968 mm2 Sx = 1753 x 103 mm3
d = 314.45 mm Sy = 587 x 103 mm3
bf = 306.83 mm rx = 135.64 mm
tf = 18.69 mm ry = 77.47 mm
tx = 11.94 mm
a) Compute the max. Capacity of the column section.
b) Design the size of the column base plate.
c) Design the thickness of the base plate.
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