I = 18.4×10° mm“, ry = 49.3 mm. The column us fixed the column so that deflection in the r However, the column is free to deflect in the y -z plane a Per of the column. Assume E = 200 GPa and oy = 250 z plane is res ckling load about both the strong and the weak avis

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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.As shown in Figure 10, a W310 × 60 structural steel shape is used as a column with an actual
,
length of L = 9 m. The following section properties of the column are given: I; = 128×106 mm
rz = 130 mm, Iz = 18.4×106 mm4, ry = 49.3 mm. The column us fixed at base A. Lateral support
is provided to the column so that deflection in the r - z plane is restricted at the upper end of
the column. However, the column is free to deflect in the y – z plane at B. Determine the critical
buckling load Per of the column. Assume E = 200 GPa and oy = 250 MPa. You need to calculate
the critical buckling load about both the strong and the weak axis, and then decide the actual
critical buckling load. You also need to check if the column remains elastic, so that the critical load
equation you used is valid.
B
Weak
axis
9 m
Strong -
axis
W310 x 60
A
Figure 10
Transcribed Image Text:.As shown in Figure 10, a W310 × 60 structural steel shape is used as a column with an actual , length of L = 9 m. The following section properties of the column are given: I; = 128×106 mm rz = 130 mm, Iz = 18.4×106 mm4, ry = 49.3 mm. The column us fixed at base A. Lateral support is provided to the column so that deflection in the r - z plane is restricted at the upper end of the column. However, the column is free to deflect in the y – z plane at B. Determine the critical buckling load Per of the column. Assume E = 200 GPa and oy = 250 MPa. You need to calculate the critical buckling load about both the strong and the weak axis, and then decide the actual critical buckling load. You also need to check if the column remains elastic, so that the critical load equation you used is valid. B Weak axis 9 m Strong - axis W310 x 60 A Figure 10
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