A built up column consist of two channels C 450 x 42.7 and one cover plate 500 mm x 12 mm. The channels are placed 300 mm back to back with the flanges outstanding. The height of the Column is 6 m with k =1.0. Determine the axial load capacity of the column. Fy = 248 MPa, E = 200 GPa 500 mm I 300 mm 12 mm 450 mm Properties of C 450 x 42.7 A = 8129.02 mm² I = 230.59x106mmª I, = 5.99x106mmª y x = 22.28mm

A built up column consist of two channels C 450 x 42.7 and one cover plate 500 mm x 12 mm. The channels are placed 300 mm back to back with the flanges outstanding. The height of the Column is 6 m with k =1.0. Determine the axial load capacity of the column. Fy = 248 MPa, E = 200 GPa 500 mm I 300 mm 12 mm 450 mm Properties of C 450 x 42.7 A = 8129.02 mm² I = 230.59x106mmª I, = 5.99x106mmª y x = 22.28mm

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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Concept explainers

Applications of Concrete Framing Systems

A concrete frame is a structure formed by the interconnection of beams and columns to form a structural network. In simple terms, it is the basic skeletal structure of a building or any construction. The concrete framing structure is built on a concrete foundation that forms the base of the entire structure. The concrete frame system is built to support floors, roofs, walls, beams, rafters, joists, etc.

Question

A built up column consist of two channels C 450 x 42.7 and
one cover plate 500 mm x 12 mm. The channels are placed
300 mm back to back with the flanges outstanding. The height of the
Column is 6 m with k=1.0. Determine the axial load capacity of
the column. Fy = 248 MPa, E = 200 GPa
500 mm
300 mm
12 mm
-
450 mm
CIVIL ENGINEERING STEEL DESIGN
Properties of C 450 x 42.7
A = 8129.02 mm²
2
= 230.59x106mmª
1x²
I₁ = 5.99x106mmª
y
x = 22.28mm

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Step 2: Calculate moment of inertia about weak axis

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Step 3: Calculate slenderness ratio

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Step 4: Calculate elastic buckling strength

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Step 5: Calculate critical flexural buckling stress

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Step 6: Calculate axial load capacity of column

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