A built-up section consisting of W350x90 with two 12mm plates to form a box section as shown. The column is fixed at both ends, and braced at mid height about the weak axis (Y-axis). Use Fy = 248 Mpa. L = 10m Properties of W350x90: bf = 250 mm d = 350 mm tf = 16.4 mm tw = 9.5 mm Determine the following: 1. Effective slenderness ratio of the column with respect to lateral buckling about the x-axis. Effective slenderness ratio of the column with respect to lateral buckling about the y-axis. Axial load capacity of the column in kN using NSCP. 2. Ix = 266x106 mm4 ly = 44.54x106 mm4 A = 11,550 mm2 3. I CIVIL ENGINEERING-STEEL DESIGN

A built-up section consisting of W350x90 with two 12mm plates to form a box section as shown. The column is fixed at both ends, and braced at mid height about the weak axis (Y-axis). Use Fy = 248 Mpa. L = 10m Properties of W350x90: bf = 250 mm d = 350 mm tf = 16.4 mm tw = 9.5 mm Determine the following: 1. Effective slenderness ratio of the column with respect to lateral buckling about the x-axis. Effective slenderness ratio of the column with respect to lateral buckling about the y-axis. Axial load capacity of the column in kN using NSCP. 2. Ix = 266x106 mm4 ly = 44.54x106 mm4 A = 11,550 mm2 3. I CIVIL ENGINEERING-STEEL DESIGN

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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Question

A built-up section consisting of W350x90 with two 12mm plates to form a box section as
shown. The column is fixed at both ends, and braced at mid height about the weak axis
(Y-axis). Use Fy = 248 Mpa. L = 10m
Properties of W350x90:
bf = 250 mm
d = 350 mm
tf = 16.4 mm
tw = 9.5 mm
Determine the following:
1. Effective slenderness ratio of the column with
respect to lateral buckling about the x-axis.
Effective slenderness ratio of the column with
respect to lateral buckling about the y-axis.
Axial load capacity of the column in kN using
NSCP.
2.
lx = 266x106 mm4
ly = 44.54x106 mm4
A = 11,550 mm2
3.
CIVIL ENGINEERING-STEEL DESIGN

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Step 3: 1. The effective slenderness ratio of the column with respect to lateral bucking about the x-axis.

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