How much service live load, in kN/m, can be supported? The member weight is the only dead load. The axial compressive load consists of a service dead load of 45 kN and a service live load of 90 kN. Do not consider moment amplification. Use NSCP 2015. a. b. LRFD. ASD. SECTION wt tf 1x mm mm kN/m W460x144 1.41 18400 472 13.6 283 22.2 726 A mm² d tw bf mm mm mm Sx mm³ 3080 Tx ly Sy Ty m² mm³ 199 83.6 591 67.4 mm 6.2m W460x144 mm" mm Zx Zy mm³ mm³ 3450 906 J mm4 2440 Cw mmº 4230
How much service live load, in kN/m, can be supported? The member weight is the only dead load. The axial compressive load consists of a service dead load of 45 kN and a service live load of 90 kN. Do not consider moment amplification. Use NSCP 2015. a. b. LRFD. ASD. SECTION wt tf 1x mm mm kN/m W460x144 1.41 18400 472 13.6 283 22.2 726 A mm² d tw bf mm mm mm Sx mm³ 3080 Tx ly Sy Ty m² mm³ 199 83.6 591 67.4 mm 6.2m W460x144 mm" mm Zx Zy mm³ mm³ 3450 906 J mm4 2440 Cw mmº 4230
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:How much service live load, in kN/m, can be supported?
The member weight is the only dead load. The axial
compressive load consists of a service dead load of 45 kN
and a service live load of 90 kN. Do not consider moment
amplification. Use NSCP 2015.
a.
b.
LRFD.
ASD.
wt A
kN/m mm²
W460x144 1.41 18400 472 13.6 283
SECTION
tw
bf
tf
Ix
Sx
mm mm mm mm³
22.2 726 3080
mm mm
mm
199
6.2m
W460x144
Sy Ty Zx
ly
mm mm³ mm
83.6 591
Zy J
Cw
mmº
mm³
mm³
67.4 3450 906 2440 4230
mmª
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Step 1: Introducing given data
VIEWStep 2: Classification of the section
VIEWSolution
VIEWStep 3: Calculate nominal compressive strength (Pn)
VIEWStep 4: Calculate plastic moment (Mp)
VIEWStep 5: Calculate Lr
VIEWStep 6: Calculate strength based on lateral torsional buckling
VIEWStep 7: Using LRFD
VIEWStep 8: Calculate service live load using LRFD
VIEWStep 9: Using ASD
VIEWStep 10: Calculate service live load using ASD
VIEW
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