A 12 x 65 section (Fy = 345 MPa, E =200000MPa) is used as a beam which has full lateral bracings. a) What is the LRFD flexural design strength ØMn of the beam in kN.m? b) What safe live load w (N/m) can be applied on the beam loaded as shown in Figure 3? Beam weight is neglected.

Structural Analysis
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Chapter2: Loads On Structures
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3 m
w (N/m)
3 m
Figure 3
1.5 m
Transcribed Image Text:3 m w (N/m) 3 m Figure 3 1.5 m
A 12 x 65 section (Fy = 345 MPa, E =200000MPa) is used as a beam which has full
lateral bracings.
a) What is the LRFD flexural design strength ØMn of the beam in kN.m?
b) What safe live load w (N/m) can be applied on the beam loaded as shown in
Figure 3? Beam weight is neglected.
Properties of W 12 x 65
d = 307.55 mm
tf = 15.37 mm
bf 304.5 mm
tw = 9.91 mm
Sx
1440.423 x 10³ mm³
Zx 1586.268 x10³ mm³
h=T=241.3 mm
Transcribed Image Text:A 12 x 65 section (Fy = 345 MPa, E =200000MPa) is used as a beam which has full lateral bracings. a) What is the LRFD flexural design strength ØMn of the beam in kN.m? b) What safe live load w (N/m) can be applied on the beam loaded as shown in Figure 3? Beam weight is neglected. Properties of W 12 x 65 d = 307.55 mm tf = 15.37 mm bf 304.5 mm tw = 9.91 mm Sx 1440.423 x 10³ mm³ Zx 1586.268 x10³ mm³ h=T=241.3 mm
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