s. The column is restrained on both ends. Fy = 248 MPa
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
A 3.5m high column consists of W920 X 289.7. It carries an eccentric load of 1000 KN with an eccentric of 100 mm along the y-axis. The column is restrained on both ends. Fy = 248 MPa
Properties of W920 X 289.70
A=36770 mm²
d=927 mm
bf=308 mm
tf =32 mm
tw=19.4 mm
Ix=5036.4 (10⁶)
Sx=10.88 (10⁶)
Iy=156.09 (10⁶)
Sy=1.014 (10⁶)
K = 0.50
Cm = 0.85
Properties of W920 X 289.70
A=36770 mm²
d=927 mm
bf=308 mm
tf =32 mm
tw=19.4 mm
Ix=5036.4 (10⁶)
Sx=10.88 (10⁶)
Iy=156.09 (10⁶)
Sy=1.014 (10⁶)
K = 0.50
Cm = 0.85
1. What is the eccentric moment(Mx) in KN-m?
a. 100
b. 150
c. 175
d. 90
2. Which of the following most nearly gives the actual axial stress?
a. 37.2 MPa
b. 47.2 MPa
c. 27.2 MPa
d. 57.2 MPa
3. Which of the following gives the value of critical slenderness ratio?
a. 16.86
b. 26.86
c. 46.86
d. 36.86
4. What is the ratio of Allowable axial stress to Actual axial stress (fa/Fa)?
a. 0.192
b. 0.172
c. 0.182
d. 0.162
5. What is actual bending stress of the column in MPa?
a. 8.2 MPa
b. 7.2 MPa
c. 9.2 MPa
d. 10.2 MPa
6. What is the allowable bending stress of the column?
a. 150 MPa
b. 143.7 MPa
c. 163.7 MPa
d. 155.7 MPa
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