Using A36 steel, determine the safe load P based on the capacity of the bottom strut with a cross section as shown. Use LRFD. Let k 1.0. C9x20 I 3.4m 4.5m 90mm a) Calculate the radius of gyration at strong axis of the built-up section. b) What is the critical slenderness ratio? c) Find the critical buckling stress. d) Compute the nominal capacity of the bottom strut. e) Determine the safe load P.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Using A36 steel, determine the safe load P based on the capacity of the bottom strut with a cross section as shown.
Use LRFD. Letk 1.0.
C9x20
3.4m
-→ I
4.5m
90mm
a) Calculate the radius of gyration at strong axis of the built-up section.
b) What is the critical slenderness ratio?
c) Find the critical buckling stress.
d) Compute the nominal capacity of the bottom strut.
e) Determine the safe load P.
Transcribed Image Text:Using A36 steel, determine the safe load P based on the capacity of the bottom strut with a cross section as shown. Use LRFD. Letk 1.0. C9x20 3.4m -→ I 4.5m 90mm a) Calculate the radius of gyration at strong axis of the built-up section. b) What is the critical slenderness ratio? c) Find the critical buckling stress. d) Compute the nominal capacity of the bottom strut. e) Determine the safe load P.
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