ANALYSIS OF COMPRESSION MEMBERS: EULER'S CRITICAL STRESS

I. Using Euler's formula, determine the critical buckling load for each of the sections used as compression members.

Note: If critical load exceeds proportional limit or critical slenderness ratio exceeds $200,$ Euler's formula is not applicable.

diameter $=150mmt=9mm$

Use A$36$ steel with $Fy=248$MPa and $Fu=400$MPa.

a$.L=6\mathrm{.}5m$

b$.L=4\mathrm{.}75m$

c$.L=3m$

$W31074$

$A=9420m{m}^2$

$d=310mm$

$bf=205mm$

$tw=9\mathrm{.}40mm$

$tf=16\mathrm{.}3mm$

Length $=6m$

Use A$36$ steel with $Fy=248$MPa and $Fu=400$MPa.

$3.$ Solid round bar with a diameter of $40$ mm Use A$36$ steel with $Fy=248$MPa and $Fu=400$MPa.

a$.L=1\mathrm{.}25m$

b$.L=0\mathrm{.}7m$

c$.L=2m$

$4.$ HSS$406\mathrm{.}4406\mathrm{.}412\mathrm{.}7$

$A=18300m{m}^2$

$h=371mm$

$b=371mm$

$t=12\mathrm{.}7mm$

$L=5\mathrm{.}5m$

$Fy=318$MPa