A built-up section consisting of W 350 x 90 which 15 mm plates welded to form a box section as shown in figure. The section is used as a column 12 m meters long carring a deadload of 2000 kN. The column is braced at both ends, and braced at mid height about the weak axis (Y-axis). Use Pu = PD + PLL for allowable axial load and Pu= 1.2 PD + 1.6 Pu for service axial load. Fy 250 Mpa. Properties ; bf = 200 mm Ix = 324 x 106 mm4 tf = 22.5 mm ly = 57.34 x 106 mmª d = 400 mm tw = 15.2 mm y 200 mm 400 mm ++ Is mm 15 mm W 350 x 90 a) Determine the axial live load of the column using the ASD 2015 NSCP. b) Determine the safe service live load of the column using the LRFD 2015 NSCP.

A built-up section consisting of W 350 x 90 which 15 mm plates welded to form a box section as shown in figure. The section is used as a column 12 m meters long carring a deadload of 2000 kN. The column is braced at both ends, and braced at mid height about the weak axis (Y-axis). Use Pu = PD + PLL for allowable axial load and Pu= 1.2 PD + 1.6 Pu for service axial load. Fy 250 Mpa. Properties ; bf = 200 mm Ix = 324 x 106 mm4 tf = 22.5 mm ly = 57.34 x 106 mmª d = 400 mm tw = 15.2 mm y 200 mm 400 mm ++ Is mm 15 mm W 350 x 90 a) Determine the axial live load of the column using the ASD 2015 NSCP. b) Determine the safe service live load of the column using the LRFD 2015 NSCP.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter4: Compression Members

Section: Chapter Questions

Problem 4.9.4P

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