150 12 mm N.A 466.09 mm
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
A column section is fabricated by welding a 12 mm x 150 mm cover plate to the top of a W 18 x 65. Assume that the components are connected in such a way that the member is fully effective. Length of column is 6.0 m.
Properties of W 18 x 65
A = 13323 mm2
d = 466.09 mm
Ix = 445 x 106 mm4
Iy = 23 x 106 mm4
rx = 190.25 mm
ry = 24.93 mm
Fy = 345 MPa
bf = 192,79 mm
tf = 19.05 mm
tw = 11.43 mm
Zx = 2179 x 103 mm3
a. Determine the critical slenderness ratio of the built-up column section.
b. Determine the design and allowable strength of the built up section based In flexural buckling. (kN)
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