The beam-column in the figure below is a member of a braced frame. A second-order analysis was performed with factored loads and reduced member stiffnesses to obtain the moments and axial force shown. Use
The beam-column in the figure below is a member of a braced frame. A second-order analysis was performed with factored loads and reduced member stiffnesses to obtain the moments and axial force shown. Use
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
The beam-column in the figure below is a member of a braced frame. A second-order analysis was performed with factored loads and reduced member stiffnesses to obtain the moments and axial force shown. Use LRFD
and determine whether this member is adequate. Suppose that P = 165 k
For W10 x 60 with L, = 15 ft and C6 = 1.0: ф,M, = 257 ft-kips, ф,M, = 280 ft-kips;
for Lc = 15 ft: cPr = 556 kips.
Transcribed Image Text:The beam-column in the figure below is a member of a braced frame. A second-order analysis was performed with factored loads and reduced member stiffnesses to obtain the moments and axial force shown. Use LRFD
and determine whether this member is adequate. Suppose that P = 165 k.
For W10 x 60 with L = 15 ft and C = 1.0: Mn = 257 ft-kips, O M₂ = 280 ft-kips;
for Le 15 ft: P = 556 kips.
=
15'
B)
P
P
✓ 120 ft-k
W10 X 60
K₁ = K₁ = 1.0
Select the interaction formula:
Pu
8
Muy
NFP + (M + MON) =
A)
≤1.0
9 Mnx
Mny
+
112 ft-k
P₂₁
Muz
20 Pn of Mnx
(
+
This member -Select-
Muy
of Mny
< 1.0
-Select- v
Compute the interaction formula.
(Express your answer to three significant figures.)
-Select- ✓ 1.0
✓the AISC Specification.
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