design of column
DESCRIPTION
Steel DesignTRANSCRIPT
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INTRODUCTION
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Generally referred to a vertical
compression member supporting floors
and/or roof in structural frames.
Subjected to axial and bending effects.
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Axial Load
Wind
Load
Moment
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Square Hollow Section
Circular Hollow Section
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Universal
Column
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Built-up section
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COLUMN FAILURE MODES
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PROCEDURES
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1 Determine beams and columns.
2 Label the grid line.
3 Draw the load distribution profile.
4
Determine the value of Permanent actions (Gk) and Variable
actions (Qk).
5
Calculate shear force (R) for each beam.
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A B C D E
1
2
3
4
4000 mm 4000 mm 4000 mm 4000 mm
2000 mm
5000 mm
2000 mm
BATH BATH BATH BATH
MOTEL
MOTEL
MOTEL
MOTEL
PORCH
PORCH
PORCH
PORCH
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Beam 1/A-B
Beam A/1-2
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Beam A/1-2
Beam 2/A-B
Beam A/2-3
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Beam B/1-2
Beam 2/B-C
Beam 2/A-B
Beam B/2-3
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NED = R1 + R2 + R3 + ..
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Ncr = 2 E I
Lcr2