I The build-up column shown consist of (375X75 welded to PL 12x400 mm. The column is 8mts long and is hinged @both ends. Determine the ASD and LRFD compressive strength of the column. 35 PL 12 X 400 300 SD * 381 Properties of C 375 x75 A=9480mm² - 381 mm x=20.3mm bf= 94.5mm tf = 16.5mm tw = 18.2mm 1x = 168 x10 mm 4 4.58x106mm 4 ly = = Fy= 250 мра
I The build-up column shown consist of (375X75 welded to PL 12x400 mm. The column is 8mts long and is hinged @both ends. Determine the ASD and LRFD compressive strength of the column. 35 PL 12 X 400 300 SD * 381 Properties of C 375 x75 A=9480mm² - 381 mm x=20.3mm bf= 94.5mm tf = 16.5mm tw = 18.2mm 1x = 168 x10 mm 4 4.58x106mm 4 ly = = Fy= 250 мра
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Determine the ASD and LRFD compressive strength of the column.
Transcribed Image Text:The build-up column shown consist of
(375X75 welded to
a
hinged
PL 12x400 mm. The column is 8mts long and is
both ends. Determine the ASD and IRFD compressive strength
of the column.
PL 12x400
300
*
381
Properties of C 375 x75
A=9480mm²
- 381 mm
x=20.3mm
bf=94-5mm
16.5mm
#f=
tw = 18.2mm
1x = 168 x10 mm 4
= 4.58x106mm²4
ly.
Fy> 250MPa
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Step 1: Given
VIEWStep 2: Calculation of moment of inertia of given section about x axis
VIEWStep 3: Calculation of moment of inertia of given section about y axis
VIEWStep 4: Calculate radius of gyration about x and y axis
VIEWStep 5: Calculate governing slenderness ratio
VIEWStep 6: Calculate elastic buckling stress, Fe
VIEWStep 7: Calculate critical flexural buckling stress, Fcr
VIEWStep 8: Calculate compressive strength of the column by LRFD and ASD
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