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Determine the slenderness ratio

Determine the slenderness ratio

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 built up column, consists of W 255 x 75 and welded to the flanges by a plate 9.5mm thick as shown. The column supports a load of 460kN at an eccentricity of 200mm.The length is 5.5 m. side- sway is prevented and K = 1.2, Fb = 0.60Fy. Assumed both ends are pinned connected. Properties of W 255 x 75 254 A = 9480mm² d = 253mm b₁ = 254mm t₁ = 14.5mm 446 kN 253 tw = 9.0mm rx= 112mm ry = 65.2mm Fy = 250MPa x = 115 x 10 mmª ly: = 39.0 x 106 mm¹ 9.5 A. Determine the slenderness ratio of the built up column. B. Determine the amplification factor. C. Determine the ratio of actual and allowable stresses for com- bined axial and bending using interaction equation. 9.5 e=200 mm
Transcribed Image Text:A built up column, consists of W 255 x 75 and welded to the flanges by a plate 9.5mm thick as shown. The column supports a load of 460kN at an eccentricity of 200mm.The length is 5.5 m. side- sway is prevented and K = 1.2, Fb = 0.60Fy. Assumed both ends are pinned connected. Properties of W 255 x 75 254 A = 9480mm² d = 253mm b₁ = 254mm t₁ = 14.5mm 446 kN 253 tw = 9.0mm rx= 112mm ry = 65.2mm Fy = 250MPa x = 115 x 10 mmª ly: = 39.0 x 106 mm¹ 9.5 A. Determine the slenderness ratio of the built up column. B. Determine the amplification factor. C. Determine the ratio of actual and allowable stresses for com- bined axial and bending using interaction equation. 9.5 e=200 mm
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