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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.

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.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
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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