CALCS PROC040
SKELETAL COLUMN, STABILITY

NOTATION

I2nd mom area, column, axis normal to chords plane
I12MA, chord
I22MA, transverse member OR 2*I pair batten plates
Llength, column
apitch, battens, longitudinal
bwidth, batten, chord to chord
Kfactor, modulus

APPLICATION

Straight slender members subject to compressive force

OUTPUT

Strut stability critical stress correction factor based on transverse shear stiffness

SEE ALSO

PROC032

THEORY

Roark5, Page4

GUIDANCE

guidance notes

INPUT FORMAT

LET I=:I1=:I2=:L=:a=:b=:PROC040

EXAMPLE

Call Statement

LET I=3532:I1=593:I2=256:L=2087:a=193:b=103:PROC040

Output

PROC040 SKELETAL COLUMN, 150400
K= 1/(1+(PI^2*I/L^2)*(a*b/(12*I2)+a^2/(24*I1)))= 0.9322
END040