he loaded steel framing shown consists of bars 1, 2, and 3 with their corresponding flexural rigidity. The leftmost side is clamped (fixed support), the opposite side hinged, and a roller support at the middle. If each bar may be subjected to Euler buckling and a = 3 m,   Determine the critical load for each member. Calculate the factor of safety (F.S.) of the whole frame against buckling. At what value of P will the frame start to have a buckled member?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The loaded steel framing shown consists of bars 1, 2, and 3 with their corresponding flexural rigidity. The leftmost side is clamped (fixed support), the opposite side hinged, and a roller support at the middle. If each bar may be subjected to Euler buckling and a = 3 m,

 

  1. Determine the critical load for each member.
  2. Calculate the factor of safety (F.S.) of the whole frame against buckling.
  3. At what value of P will the frame start to have a buckled member?

 

GIVEN:

P = 143 Kn

I1 (x109 mm4) = 3.7860

Note: Joints where members meet can be treated as pin.

EI2
El
EI
(1)
2
3
–2a
a
а
Transcribed Image Text:EI2 El EI (1) 2 3 –2a a а
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