A built-up section consisting of W 350 x 90 with two 12 – mm plates welded to form a box section as shown in figure. The section is used as a column 10 meters long. The column is fixed at both ends, and braced at mid height about the weak axis (Y-axis). Use Fy = 248 MPa. Properties of W350x90: bf=250mm tf=16.4mm
A built-up section consisting of W 350 x 90 with two 12 – mm plates welded to form a box section as shown in figure. The section is used as a column 10 meters long. The column is fixed at both ends, and braced at mid height about the weak axis (Y-axis). Use Fy = 248 MPa. Properties of W350x90: bf=250mm tf=16.4mm
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A built-up section consisting of W 350 x 90 with two 12 – mm plates welded to form a box section as shown in figure. The section is used as a column 10 meters long. The column is fixed at both ends, and braced at mid height about the weak axis (Y-axis). Use Fy = 248 MPa.
Properties of W350x90:
bf=250mm
tf=16.4mm
d=350mm
tw=9.5mm
Ix=226x10^6 mm^4
Iy=44.54x10^6 mm^4
A=11,550 mm^2
a. Determine the effective slenderness ratio of the column with respect to lateral buckling about the x-axis.
b. Determine the effective slenderness ratio of the column with respect to lateral buckling about the y-axis.
c. Determine the axial load capacity of the column in kN.
![250 mm
12 mm
12 mm
W 350 x 90
350 mm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F216e97d3-5f89-4e22-8c54-28ce0fccbfb3%2F546378e3-bdec-4d76-a7a3-cfe5eb58569a%2Fufeir5q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:250 mm
12 mm
12 mm
W 350 x 90
350 mm
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